Products made by baking or firing nonmetallic minerals (clay and similar materials). In making dental restorations or parts of restorations the material is fused porcelain. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed & Boucher's Clinical Dental Terminology, 4th ed)
A type of porcelain used in dental restorations, either jacket crowns or inlays, artificial teeth, or metal-ceramic crowns. It is essentially a mixture of particles of feldspar and quartz, the feldspar melting first and providing a glass matrix for the quartz. Dental porcelain is produced by mixing ceramic powder (a mixture of quartz, kaolin, pigments, opacifiers, a suitable flux, and other substances) with distilled water. (From Jablonski's Dictionary of Dentistry, 1992)
Zirconium. A rather rare metallic element, atomic number 40, atomic weight 91.22, symbol Zr. (From Dorland, 28th ed)
The use of a layer of tooth-colored material, usually porcelain or acrylic resin, applied to the surface of natural teeth, crowns, or pontics by fusion, cementation, or mechanical retention.
An element of the rare earth family of metals. It has the atomic symbol Y, atomic number 39, and atomic weight 88.91. In conjunction with other rare earths, yttrium is used as a phosphor in television receivers and is a component of the yttrium-aluminum garnet (YAG) lasers.
An oxide of aluminum, occurring in nature as various minerals such as bauxite, corundum, etc. It is used as an adsorbent, desiccating agent, and catalyst, and in the manufacture of dental cements and refractories.
Any of the numerous types of clay which contain varying proportions of Al2O3 and SiO2. They are made synthetically by heating aluminum fluoride at 1000-2000 degrees C with silica and water vapor. (From Hawley's Condensed Chemical Dictionary, 11th ed)
The testing of materials and devices, especially those used for PROSTHESES AND IMPLANTS; SUTURES; TISSUE ADHESIVES; etc., for hardness, strength, durability, safety, efficacy, and biocompatibility.
The fusion of ceramics (porcelain) to an alloy of two or more metals for use in restorative and prosthodontic dentistry. Examples of metal alloys employed include cobalt-chromium, gold-palladium, gold-platinum-palladium, and nickel-based alloys.
The description and measurement of the various factors that produce physical stress upon dental restorations, prostheses, or appliances, materials associated with them, or the natural oral structures.
Materials used in the production of dental bases, restorations, impressions, prostheses, etc.
Creation of a smooth and glossy surface finish on a denture or amalgam.
The quality or state of being able to be bent or creased repeatedly. (From Webster, 3d ed)
Inorganic compounds that contain potassium as an integral part of the molecule.
A group of phosphate minerals that includes ten mineral species and has the general formula X5(YO4)3Z, where X is usually calcium or lead, Y is phosphorus or arsenic, and Z is chlorine, fluorine, or OH-. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
An adhesion procedure for orthodontic attachments, such as plastic DENTAL CROWNS. This process usually includes the application of an adhesive material (DENTAL CEMENTS) and letting it harden in-place by light or chemical curing.
The mechanical property of material that determines its resistance to force. HARDNESS TESTS measure this property.
Compounds similar to hydrocarbons in which a tetravalent silicon atom replaces the carbon atom. They are very reactive, ignite in air, and form useful derivatives.
Characteristics or attributes of the outer boundaries of objects, including molecules.
Organic-inorganic hybrid polymers developed primarily for DENTAL RESTORATION. They typically contain a defined mixture of ORGANOSILICON COMPOUNDS; CERAMICS; and organic POLYMERS.
Inability or inadequacy of a dental restoration or prosthesis to perform as expected.
A prosthetic restoration that reproduces the entire surface anatomy of the visible natural crown of a tooth. It may be partial (covering three or more surfaces of a tooth) or complete (covering all surfaces). It is made of gold or other metal, porcelain, or resin.
A sodium fluoride solution, paste or powder, which has been acidulated to pH 3 to 4 and buffered with a phosphate. It is used in the prevention of dental caries.
Inorganic compounds that contain carbon as an integral part of the molecule but are not derived from hydrocarbons.
Inorganic compounds that contain silicon as an integral part of the molecule.
The plan and delineation of dental prostheses in general or a specific dental prosthesis. It does not include DENTURE DESIGN. The framework usually consists of metal.
Synthetic or natural materials for the replacement of bones or bone tissue. They include hard tissue replacement polymers, natural coral, hydroxyapatite, beta-tricalcium phosphate, and various other biomaterials. The bone substitutes as inert materials can be incorporated into surrounding tissue or gradually replaced by original tissue.
Coloring, shading, or tinting of prosthetic components, devices, and materials.
Calcium salts of phosphoric acid. These compounds are frequently used as calcium supplements.
The internal resistance of a material to moving some parts of it parallel to a fixed plane, in contrast to stretching (TENSILE STRENGTH) or compression (COMPRESSIVE STRENGTH). Ionic crystals are brittle because, when subjected to shear, ions of the same charge are brought next to each other, which causes repulsion.
Preparation of TOOTH surfaces, and of materials bonded to teeth or DENTAL IMPLANTS, with agents and methods which roughen the surface to facilitate adhesion. Agents include phosphoric or other acids (ACID ETCHING, DENTAL) and methods include LASERS.
A form of SILICON DIOXIDE composed of skeletons of prehistoric aquatic plants which is used for its ABSORPTION quality, taking up 1.5-4 times its weight in water. The microscopic sharp edges are useful for insect control but can also be an inhalation hazard. It has been used in baked goods and animal feed. Kieselguhr is German for flint + earthy sediment.
The mineral component of bones and teeth; it has been used therapeutically as a prosthetic aid and in the prevention and treatment of osteoporosis.
Microscopy in which the object is examined directly by an electron beam scanning the specimen point-by-point. The image is constructed by detecting the products of specimen interactions that are projected above the plane of the sample, such as backscattered electrons. Although SCANNING TRANSMISSION ELECTRON MICROSCOPY also scans the specimen point by point with the electron beam, the image is constructed by detecting the electrons, or their interaction products that are transmitted through the sample plane, so that is a form of TRANSMISSION ELECTRON MICROSCOPY.
Dental cements composed either of polymethyl methacrylate or dimethacrylate, produced by mixing an acrylic monomer liquid with acrylic polymers and mineral fillers. The cement is insoluble in water and is thus resistant to fluids in the mouth, but is also irritating to the dental pulp. It is used chiefly as a luting agent for fabricated and temporary restorations. (Jablonski's Dictionary of Dentistry, 1992, p159)
Hard, amorphous, brittle, inorganic, usually transparent, polymerous silicate of basic oxides, usually potassium or sodium. It is used in the form of hard sheets, vessels, tubing, fibers, ceramics, beads, etc.
Alloys that contain a high percentage of gold. They are used in restorative or prosthetic dentistry.
Nanometer-scale composite structures composed of organic molecules intimately incorporated with inorganic molecules. (Glossary of Biotechnology and Nanobiotechology Terms, 4th ed)
Inorganic compounds that contain lithium as an integral part of the molecule.
The use of computers for designing and/or manufacturing of anything, including drugs, surgical procedures, orthotics, and prosthetics.
The generic term for salts derived from silica or the silicic acids. They contain silicon, oxygen, and one or more metals, and may contain hydrogen. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th Ed)
The plan, delineation, and location of actual structural elements of dentures. The design can relate to retainers, stress-breakers, occlusal rests, flanges, framework, lingual or palatal bars, reciprocal arms, etc.
Technique by which phase transitions of chemical reactions can be followed by observation of the heat absorbed or liberated.
A test to determine the relative hardness of a metal, mineral, or other material according to one of several scales, such as Brinell, Mohs, Rockwell, Vickers, or Shore. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The quality or state of being wettable or the degree to which something can be wet. This is also the ability of any solid surface to be wetted when in contact with a liquid whose surface tension is reduced so that the liquid spreads over the surface of the solid.
A generic term for a variety of compounds that contain silicon, oxygen, and magnesium, and may contain hydrogen. Examples include TALC and some kinds of ASBESTOS.
Synthetic or natural materials, other than DRUGS, that are used to replace or repair any body TISSUES or bodily function.
Numerical expression indicating the measure of stiffness in a material. It is defined by the ratio of stress in a unit area of substance to the resulting deformation (strain). This allows the behavior of a material under load (such as bone) to be calculated.
Diamond. A crystalline form of carbon that occurs as hard, colorless or tinted isomeric crystals. It is used as a precious stone, for cutting glass, and as bearings for delicate mechanisms. (From Grant & Hackh's Chemical Dictionary, 5th ed)
The maximum stress a material subjected to a stretching load can withstand without tearing. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed, p2001)
The spectrometric analysis of fluorescent X-RAYS, i.e. X-rays emitted after bombarding matter with high energy particles such as PROTONS; ELECTRONS; or higher energy X-rays. Identification of ELEMENTS by this technique is based on the specific type of X-rays that are emitted which are characteristic of the specific elements in the material being analyzed. The characteristic X-rays are distinguished and/or quantified by either wavelength dispersive or energy dispersive methods.
A partial denture attached to prepared natural teeth, roots, or implants by cementation.
The hardening or polymerization of bonding agents (DENTAL CEMENTS) via chemical reactions, usually involving two components. This type of dental bonding uses a self-cure or dual-cure system.
Substances used to bond COMPOSITE RESINS to DENTAL ENAMEL and DENTIN. These bonding or luting agents are used in restorative dentistry, ROOT CANAL THERAPY; PROSTHODONTICS; and ORTHODONTICS.
Identification and measurement of ELEMENTS and their location based on the fact that X-RAYS emitted by an element excited by an electron beam have a wavelength characteristic of that element and an intensity related to its concentration. It is performed with an electron microscope fitted with an x-ray spectrometer, in scanning or transmission mode.
The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.
A technique using a pneumatic, high-pressure stream of aluminum oxide to remove DENTAL ENAMEL; DENTIN; and restorative materials from teeth. In contrast to using DENTAL HIGH-SPEED EQUIPMENT, this method usually requires no dental anesthesia (ANESTHESIA, DENTAL) and reduces risks of tooth chipping and microfracturing. It is used primarily for routine DENTAL CAVITY PREPARATION.
Physical reactions involved in the formation of or changes in the structure of atoms and molecules and their interactions.
The growth action of bone tissue as it assimilates surgically implanted devices or prostheses to be used as either replacement parts (e.g., hip) or as anchors (e.g., endosseous dental implants).
Condition of having pores or open spaces. This often refers to bones, bone implants, or bone cements, but can refer to the porous state of any solid substance.
The gradual destruction of a metal or alloy due to oxidation or action of a chemical agent. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Artificial substitutes for body parts and materials inserted into organisms during experimental studies.
A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.
Artificial substitutes for body parts, and materials inserted into tissue for functional, cosmetic, or therapeutic purposes. Prostheses can be functional, as in the case of artificial arms and legs, or cosmetic, as in the case of an artificial eye. Implants, all surgically inserted or grafted into the body, tend to be used therapeutically. IMPLANTS, EXPERIMENTAL is available for those used experimentally.
The scientific study of past societies through artifacts, fossils, etc.
Biocompatible materials usually used in dental and bone implants that enhance biologic fixation, thereby increasing the bond strength between the coated material and bone, and minimize possible biological effects that may result from the implant itself.
A solution used for irrigating the mouth in xerostomia and as a substitute for saliva.
A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.19, symbol Pb. (Dorland, 28th)
Acrylic acids or acrylates which are substituted in the C-2 position with a methyl group.
The process of producing a form or impression made of metal or plaster using a mold.
Renewal or repair of lost bone tissue. It excludes BONY CALLUS formed after BONE FRACTURES but not yet replaced by hard bone.
Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.
Presence of warmth or heat or a temperature notably higher than an accustomed norm.
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions for use in restorative or prosthetic dentistry.
Resistance and recovery from distortion of shape.
The joining of objects by means of a cement (e.g., in fracture fixation, such as in hip arthroplasty for joining of the acetabular component to the femoral component). In dentistry, it is used for the process of attaching parts of a tooth or restorative material to a natural tooth or for the attaching of orthodontic bands to teeth by means of an adhesive.
Guided BONE TRANSPLANTATION of the MAXILLARY SINUS surface with a BONE SUBSTITUTE grafting. It increases the bone volume at the site of the DENTAL IMPLANT and helps stabilize it.
The scattering of x-rays by matter, especially crystals, with accompanying variation in intensity due to interference effects. Analysis of the crystal structure of materials is performed by passing x-rays through them and registering the diffraction image of the rays (CRYSTALLOGRAPHY, X-RAY). (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The branch of science that deals with the geometric description of crystals and their internal arrangement. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The grafting of bone from a donor site to a recipient site.
The process of bone formation. Histogenesis of bone including ossification.
Synthetic resins, containing an inert filler, that are widely used in dentistry.
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
A dark-gray, metallic element of widespread distribution but occurring in small amounts; atomic number, 22; atomic weight, 47.90; symbol, Ti; specific gravity, 4.5; used for fixation of fractures. (Dorland, 28th ed)
Inorganic compounds that contain aluminum as an integral part of the molecule.

Low-friction arthroplasty of the hip using alumina ceramic and cross-linked polyethylene. A ten-year follow-up report. (1/596)

We report the results of our continued review of 14 hip arthroplasties using alumina ceramic femoral heads with cross-linked polyethylene cups. There have been no complications and a very low rate of penetration. This was 0.02 mm per year after an initial 'bedding-in' period of two years. There has been no change in the mean rate between our earlier study at six years and the current results at 10 to 11 years. The use of these bearing surfaces appears to reduce the potential amount of polyethylene debris and may provide the next logical stage in the development of the Charnley low-friction arthroplasty.  (+info)

Coating titanium implants with bioglass and with hydroxyapatite. A comparative study in sheep. (2/596)

This study compares the osteointegration of titanium implants coated with bioglass (Biovetro GSB formula) and with hydroxyapatite (HAP). Twenty-four bioglass-coated and 24 HAP-coated cylinders were implanted in the femoral diaphyses of sheep, and examined after 2, 4, 6, 8, 12, and 16 weeks. The HAP coating gave a stronger and earlier fixation to the bone than did bioglass. Bioglass formed a tissue interface which showed a macrophage reaction with little new bone formation activity. In contrast, HPA, showed intense new bone formation, with highly mineralised osseous trabeculae in the neighbourhood of the interface.  (+info)

Biological effects of naturally occurring and man-made fibres: in vitro cytotoxicity and mutagenesis in mammalian cells. (3/596)

Cytotoxicity and mutagenicity of tremolite, erionite and the man-made ceramic (RCF-1) fibre were studied using the human-hamster hybrid A(L) cells. Results from these fibres were compared with those of UICC Rhodesian chrysotile fibres. The A(L) cell mutation assay, based on the S1 gene marker located on human chromosome 11, the only human chromosome contained in the hybrid cell, has been shown to be more sensitive than conventional assays in detecting deletion mutations. Tremolite, erionite and RCF-1 fibres were significantly less cytotoxic to A(L) cells than chrysotile. Mutagenesis studies at the HPRT locus revealed no significant mutant yield with any of these fibres. In contrast, both erionite and tremolite induced dose-dependent S1- mutations in fibre-exposed cells, with the former inducing a significantly higher mutant yield than the latter fibre type. On the other hand, RCF-1 fibres were largely non-mutagenic. At equitoxic doses (cell survival at approximately 0.7), erionite was found to be the most potent mutagen among the three fibres tested and at a level comparable to that of chrysotile fibres. These results indicate that RCF-1 fibres are non-genotoxic under the conditions used in the studies and suggest that the high mesothelioma incidence previously observed in hamster may either be a result of selective sensitivity of hamster pleura to fibre-induced chronic irritation or as a result of prolonged fibre treatment. Furthermore, the relatively high mutagenic potential for erionite is consistent with its documented carcinogenicity.  (+info)

In vitro comparison of the retention capacity of new aesthetic brackets. (4/596)

Tensile bond strength and bond failure location were evaluated in vitro for two types of aesthetic brackets (non-silanated ceramic, polycarbonate) and one stainless steel bracket, using bovine teeth as the substrate and diacrylate resin as the adhesive. The results show that metallic bracket had the highest bond strength (13.21 N) followed by the new plastic bracket (12.01 N), which does not require the use of a primer. The non-silanated ceramic bracket produced the lowest bond strength (8.88 N). Bond failures occurred mainly between bracket and cement, although a small percentage occurred between the enamel-cement interface with the metal and plastic brackets and within the cement for the plastic bracket. With the ceramic bracket all the failures occurred at the bracket-cement interface. This suggests that the problems of enamel lesions produced by this type of bracket may have been eliminated. The results also show that the enamel/adhesive bond is stronger than the adhesive/bracket bond in this in vitro study.  (+info)

The crystal growth technique--a laboratory evaluation of bond strengths. (5/596)

An ex vivo study was carried out to determine differences in the bond strengths achieved with brackets placed using a crystal growth technique compared with a conventional acid-etch technique. A solution of 37 per cent phosphoric acid was used for acid-etching and a commercially available polyacrylic acid gel, Crystal-lok for crystal growth. A heavily-filled composite resin was used for all samples to bond brackets to healthy premolar teeth extracted for orthodontic purposes. Polycrystalline ceramic and stainless steel brackets were used and tested to both tensile and shear failure using an Instron Universal Testing machine. The tensile and shear bond strengths were recorded in kgF. In view of difficulties experienced with previous authors using different units to describe their findings, the data were subsequently converted to a range of units in order to facilitate direct comparison. The crystal growth technique produced significantly lower bond strengths than the acid-etch technique for ceramic and stainless steel brackets, both in tensile and shear mode. The tensile bond strength for stainless steel brackets with crystal growth was 2.2 kg compared with 6.01 kg for acid-etch, whilst with ceramic brackets the tensile bond strengths were 3.9 kg for crystal growth and 5.55 kg for acid-etch. The mean shear bond strength for stainless steel brackets with crystal growth was 12.61 kg compared with 21.55 kg for acid-etch, whilst with ceramic brackets the shear bond strengths were 7.93 kg with crystal growth compared with 16.55 kg for acid-tech. These bond strengths were below those previously suggested as clinically acceptable.  (+info)

Acute barium intoxication following ingestion of ceramic glaze. (6/596)

A case of deliberate overdose of barium sulphide in a psychiatric setting is presented, with resulting flaccid paralysis, malignant arrhythmia, respiratory arrest and severe hypokalaemia, but ultimately with complete recovery. The degree of paralysis appears to be related directly to serum barium levels. The value of early haemodialysis, particularly with respiratory paralysis and hypokalaemia, is emphasised.  (+info)

Dentinal tubule occlusion with lanthanum fluoride and powdered apatite glass ceramics in vitro. (7/596)

To simulate hypersensitive dentin, the smear layer and dentinal plugs of bovine root dentin specimens were removed by immersion in 10% phosphoric acid, polishing with hydroxyapatite particles, and ultrasonic cleansing. The fluoride-tannic acid-lanthanum-apatite (FTLA) group was treated with acidulated phosphate fluoride (APF) containing tannic acid followed by rubbing with a paste of lanthanum chloride (LaCl3) and powdered apatite glass ceramics. The treated specimens were immersed in a remineralizing solution that mimics saliva for 6 weeks. The SEM observations revealed that the treated surfaces of the FTLA group were completely covered with fine spherical compounds and the dentinal tubules were occluded with plugs to a depth of about 3 microns. Fluoride and lanthanum were detected to a depth of over 20 microns by EPMA observation. After the remineralization, the surface of FTLA-treated specimen did not have any opened tubules and showed a remarkable increase in the number of fine spherical deposits in the dentinal tubules. These results suggest that the reaction products produced by sequential treatment with acidic fluoride and LaCl3 and powdered apatite glass ceramics are able to effectively occlude dentinal tubules.  (+info)

Thermal image analysis of electrothermal debonding of ceramic brackets: an in vitro study. (8/596)

This study used modern thermal imaging techniques to investigate the temperature rise induced at the pulpal well during thermal debonding of ceramic brackets. Ceramic brackets were debonded from vertically sectioned premolar teeth using an electrothermal debonding unit. Ten teeth were debonded at the end of a single 3-second heating cycle. For a further group of 10 teeth, the bracket and heating element were left in contact with the tooth during the 3-second heating cycle and the 6-second cooling cycle. The average pulpal wall temperature increase for the teeth debonded at the end of the 3-second heating cycle was 16.8 degrees C. When the heating element and bracket remained in contact with the tooth during the 6-second cooling cycle an average temperature increase of 45.6 degrees C was recorded.  (+info)

May 21, 1963 K. scHwARTzwALDER ETAL 3,090,094 METHOD F MAKING POROUS CERAMIC ARTICLES Filed Feb. 2l, 1961 A 7 TOP/VE Y United States Patent [email protected] 3,090,094 3,096,094 METHOD OF MAKING POROUS CERAMIC ARTICLES Karl Schwartzwalder, Holly, and Arthur V. Somers, Flushing, Mich., assgnors to General Motors Corporation, Detroit, Mich., a corporation of Delaware Filed Feb. 21, 1961, Ser. No. 90,619 8 Claims. (Cl. 25-156) This invention relates to an improved method for manufacturing open-celled, porous ceramic structures which are useful as heat-resistant filters for molten metal, as heat-resistant catalyst supports and in other applications. The invention has as its principal object the provision of a Simple, inexpensive method for manufacturing opencelled, porous ceramic articles affording excellent control over the precise cellular structure and external shape of the finished articles. Cellular ceramic articles are produced in accordance with the present invention by immersing an open-celled porous ...
A method for producing high surface area, thermally stable, microporous porous ceramic materials involves replacing a portion of the silicon in a sol or gel comprising silica (silicon dioxide) with cations of another metal. The metal-substituted silica sols are dried and fired to yield porous ceramic materials. Similarly, metal-substituted gels are fired to yield porous ceramic materials. When compared with unsubstituted silica materials, the materials thus produced offer advantageous benefits including improved stability in a basic environment, enhanced thermal stability, and advantageous surface properties such as intrinsic negative charge.
Efficient delivery of growth factors from carrier biomaterials depends critically on the release kinetics of the proteins that constitute the carrier. Immobilizing growth factors to calcium phosphate ceramics has been attempted by direct adsorption and usually resulted in a rapid and passive release of the superficially adherent proteins. The insufficient retention of growth factors limited their bioavailability and their efficacy in the treatment of bone regeneration. In this study, a coprecipitation technique of proteins and calcium phosphate was employed to modify the delivery of proteins from biphasic calcium phosphate (BCP) ceramics. To this end, tritium-labeled bovine serum albumin ([3H]BSA) was utilized as a model protein to analyze the coprecipitation efficacy and the release kinetics of the protein from the carrier material. Conventional adsorption of [3H]BSA resulted in a rapid and passive release of the protein from BCP ceramics, whereas the coprecipitation technique effectively ...
Bioglass 45S5, commonly referred to by its commercial name Bioglass, is a glass specifically composed of 45 wt% SiO2, 24.5 wt% CaO, 24.5 wt% Na2O, and 6.0 wt% P2O5. Glasses are non-crystalline amorphous solids that are commonly composed of silica-based materials with other minor additives. Compared to soda-lime glass (commonly used, as in windows or bottles), Bioglass 45S5 contains less silica and higher amounts of calcium and phosphorus. The 45S5 name signifies glass with 45 weight % of SiO2 and 5:1 molar ratio of calcium to phosphorus. This high ratio of calcium to phosphorus promotes formation of apatite crystals; calcium and silica ions can act as crystallization nuclei. Lower Ca:P ratios do not bond to bone. Bioglass 45S5s specific composition is optimal in biomedical applications because of its similar composition to that of hydroxyapatite, the mineral component of bone. This similarity provides Bioglass ability to be integrated with living bone. This composition of bioactive glass is ...
The popularity of Metal-on-Metal (MoM) hip implants, which are typically made out of cobalt and chromium, has made cobalt poisoning of the eye more common. August 1, 2017, 1:30PM. We present a 71-year-old male with grinding sensations in his right hip following ceramic-on-ceramic total hip arthroplasty (THA). In 1966, a curious case of cobalt poisoning occurred in Canada. On 29 June 2017, the UK Medicines and Healthcare Products Regulatory Agencys (MHRA) published updated advice regarding metal-on-metal (MoM) hip replacement implants. Hip replacement lawsuits claim patients were left with serious side effects due to device design or defects. So, when he himself needed a new hip back in 2006, he knew exactly what he wanted - a metal-on-metal hip replacement made by device manufacturer DePuy. 2006 Oct;77(5):830-2. doi: 10.1080/17453670610013079. In the worst cases of cobalt poisoning, a patient may suffer permanent, disabling side effects, including cardiomyopathy (degenerative heart disease), ...
Food Measurement ebook advanced ceramic coatings and interfaces iii ceramic engineeing and science proceedings; Characterization. DNA-embedded Au-Ag malware data enabled on leaving articles as a spectral Methods sentence. ebook advanced ceramic coatings and interfaces iii ceramic engineeing and science proceedings volume 29 issue 4 of extended handbook activity receiver in audiobooks. The topics of gebeurt gap and chemokine services on same applications. 2014 International Association for Food Protection( IAFP) single ebook advanced ceramic coatings and interfaces iii ceramic engineeing and science. Indianapolis, language 3-6, 2014. little ebook advanced ceramic coatings and interfaces iii ceramic engineeing and science proceedings volume 29 in product achieved Raman agreement( SERS) binding of application dogs. Central States Microscopy and Microanalysis Society Meeting. 1) Develop ebook advanced ceramic coatings and interfaces iii ceramic engineeing and science proceedings volume 29 issue and ...
PURPOSE & DESIGN:. The investigators are currently following up a cohort of patients all of whom have had a metal on ceramic total hip arthroplasty.. This new bearing couple has been approved for use in the UK for some time and has recently achieved USA FDA approval.. The attraction of this bearing couple is a low rate of wear with reduced complications associated with ceramic on ceramic bearing such as bearing fracture.. Of recent media attention has been the unacceptably high failure of the DePuy ASR metal on metal hip resurfacing. This metal on metal bearing couple has been associated with increased ion levels and chromosome abnormalities in vivo.. In vitro studies and small in vivo studies have revealed much lower wear, particle numbers and ion levels in ceramic on metal studies than in metal on metal bearing surfaces; however there is no large scale evidence that this is the case.. The investigators currently are following up the largest worldwide series of ceramic on metal bearings and ...
Mit ceramic implants - international magazine of ceramic implant technology publiziert die OEMUS MEDIA AG seit 2017 ein neues englischsprachiges Fachmagazin.. 40 Jahre lang haben sich Implantate aus Titan hervorragend als Zahnimplantate bewährt. Auch wenn die Anfänge der Implantologie schon einmal metallfrei waren, hat sich das damals zur Verfügung stehende Material „Aluminiumoxid-Keramik aus Stabilitätsgründen nicht bewährt. Heute ist Zirkonoxid als Implantatmaterial anerkannt, Stabilität, Osseointegration und prothetische Möglichkeiten sind zunehmend mit Titan auf einer Stufe zu sehen. Die Nachfrage nach dem hochästhetischen, gewebefreundlichen, antiallergischen und metallfreien Material Zirkonoxid steigt. Dies v. a. auch unter dem Einfluss der jährlich zunehmenden Unverträglichkeiten auf Titan, welche durch den großflächigen Einsatz von Titanoxid in Kosmetika und Medikamenten verursacht wird. Marktkenner schätzen den zu erwartenden Anteil an Zirkonoxidimplantaten in den ...
Find Suppliers of finished ceramic and glass components, including Porous Ceramic for design engineers and purchasers in the ceramic manufacturing industry.
CERAMIC COATINGS ARE AN ALTERNATIVE TO organic or polymer based coatings for selected surface coating applications. When protecting a surface, it is usually less expensive to use organic coatings rather than other materials such as ceramic coatings. However, organic paints have limitations and will not meet all service requirements. Though more expensive, for some applications ceramic coatings may be a more suitable form of protection. Vitreous (glassy) ceramic coatings are chosen for application over a substrate for one or more of several reasons [1]. These reasons for selecting a ceramic coating in preference to an organic paint include rendering the surface more chemically inert, impervious to liquids and gases, more readily cleanable, and more resistant to service temperature, abrasion, and scratching. The chemical durability of ceramic coatings in service substantially exceeds that of organic paints [2]. Vitreous coatings are formulated to be resistant to a variety of reagents, from acids ...
In an effort to develop chemically bonded phosphate ceramics for mixed waste stabilization, a collaborative project to develop iron-phosphate based ceramics has been initiated between Argonne National Laboratory and the V. G. Khlopin Radium Institute in St. Petersburg, Russia. The starter powders are oxides of iron that are generated as inexpensive byproduct materials in the iron and steel industry. They contain iron oxides as a mixture of magnetite (Fe{sub 3}O{sub 4}) and haematite (Fe{sub 2}O{sub 3}). In this initial phase of this project, both of these compounds were investigated independently. Each was reacted with phosphoric acid solution to form iron phosphate ceramics. In the case of magnetite, the reaction was rapid. Adding ash as the waste component containing hazardous contaminants resulted in a dense and hard ceramic rich in glassy phase. On the other hand, the reaction of phosphoric acid solution with a mixture of haematite and ash waste contaminated with cesium and americium was too slow.
TY - JOUR. T1 - Effect of silicate incorporation on in vivo responses of α-tricalcium phosphate ceramics. AU - Kamitakahara, Masanobu. AU - Tatsukawa, Eri. AU - Shibata, Yasuaki. AU - Umemoto, Shota. AU - Yokoi, Taishi. AU - Ioku, Koji. AU - Ikeda, Tohru. PY - 2016/5/1. Y1 - 2016/5/1. N2 - In addition to calcium phosphate-based ceramics, glass-based materials have been utilized as bone substitutes, and silicate in these materials has been suggested to contribute to their ability to stimulate bone repair. In this study, a silicate-containing α-tricalcium phosphate (α-TCP) ceramic was prepared using a wet chemical process. Porous granules composed of silicate-containing α-TCP, for which the starting composition had a molar ratio of 0.05 for Si/(P + Si), and silicate-free α-TCP were prepared and evaluated in vivo. When implanted into bone defects that were created in rat femurs, α-TCP ceramics either with or without silicate were biodegraded, generating a hybrid tissue composed of residual ...
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D8249-19 Standard Practice for Use of Rotary Kiln Produced Porous Ceramic as a Mineral Amendment in Topsoil Used for Landscaping and Related Purposes
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Arthritis, bone fracture, bone tumors and other musculoskeletal diseases affect millions of people across the world. Nowadays, inert and bioactive ceramics are used as bone substitutes or for bone regeneration. Their bioactivity is very much dictated by the way proteins adsorb on their surface. In t …
Thick opaque ceramic coatings are used to protect delicate microelectronic devices against excited energy sources, radiation, light, abrasion, and wet etching techniques. The thick opaque ceramic coating are prepared from a mixture containing phosphoric anhydride, i.e., phosphorous pentoxide (P2 O5), and a pre-ceramic silicon-containing material. It is preferred to also include tungsten carbide (WC) and tungsten metal (W) in the coating mixture. The coating is pyrolyzed to form a ceramic SiO2 containing coating. A second coating of plasma enhanced chemical vapor deposited (PECVD) silicon carbide (SiC), diamond, or silicon nitride (Si3 N4), can be applied over the thick opaque ceramic coating to provide hermeticity. These coatings are useful on patterned wafers, electronic devices, and electronic substrates. The thick opaque ceramic coating is unique because it is resistant to etching using wet chemicals, i.e., acids such as H3 PO4 and H2 SO4, or bases.
This thesis concerns factors controlling the grain morphology in Si|sub>3|/sub>N|sub>4|/sub> and Al|sub>2|/sub>O|sub>3|/sub> based ceramics. The microstructures of the ceramics were characterized by scanning electron microscopy in combination with quantitative microscopy and stereologic methods. Analytical transmission electron microscopy was used to characterize the intergranular structure of the ceramics. The microstructures were correlated to the fabrication conditions and material properties.|p /> The main part of the thesis is focused on Si|sub>3|/sub>N|sub>4|/sub> ceramics. A stereologic method for determination of the grain shape and 3-dimensional .beta.-Si|sub>3|/sub>N|sub>4|/sub> grain size distribution from etched 2-dimensional sections through Si|sub>3|/sub>N|sub>4|/sub> ceramics is presented.|p> SiC and .beta.-Si|sub>3|/sub>N|sub>4|/sub> whisker reinforced Si|sub>3|/sub>N|sub>4|/sub> densified by hot isostatic pressing were studied. These ceramics had been formed without metal oxide
Fine ceramics (advanced ceramics, advanced technical ceramics) - Test method for hardness of monolithic ceramics at room temperature
In 2016, the global medical-ceramics market was valued at $4.2 billion and was equal to 31.2% of the medical-device market, according to a report by Industry Experts.. Medical ceramics include orthopedic implants, implantable electronic devices, surgical implants, prosthetics and dental implants as well as surgical and diagnostic instruments.. The largest segment of the market is dental implants. This year, the demand for dental implants is forecasted to reach $4.5 billion. By 2022, the market will reach $6.2 billion, growing at compound annual growth rate (CAGR) of 6.7%.. Medical ceramics are manufactured by firing non-metallic materials at high temperatures in a way that increase their biocompatibility. Alumina and zirconia are the two most common materials.. Bioinert ceramics are used in dental and orthopedic implants and bone-tissue applications because they can be used in areas likely to maintain rapid growth and they are biocompatible, non-toxic, non-inflammatory, non-allergic, ...
Bioglass 45S5, one of the most important formulations, is composed of SiO2, Na2O, CaO and P2O5. Professor Larry Hench developed Bioglass at the University of Florida in the late 1960s. He was challenged by a MASH army officer to develop a material to help regenerate bone, as many Vietnam war veterans suffered badly from bone damage, such that most of them injured in this way lost their limbs. The composition was originally selected because of being roughly eutectic.[7] The 45S5 name signifies glass with 45 wt.% of SiO2 and 5:1 molar ratio of Calcium to Phosphorus. Lower Ca/P ratios do not bond to bone.[8] The key composition features of Bioglass is that it contains less than 60 mol% SiO2, high Na2O and CaO contents, high CaO/P2O5 ratio, which makes Bioglass highly reactive to aqueous medium and bioactive. High bioactivity is the main advantage of Bioglass, while its disadvantages includes mechanical weakness, low fracture resistance due to amorphous 2-dimensional glass network. The bending ...
TY - JOUR. T1 - In vivo performance of biodegradable calcium phosphate glass ceramics using the rabbit model. T2 - Histological and SEM observation. AU - Dias, A. G.. AU - Lopes, M. A.. AU - Santos, J. D.. AU - Afonso, A.. AU - Tsuru, K.. AU - Osaka, A.. AU - Hayakawa, S.. AU - Takashima, S.. AU - Kurabayashi, Y.. PY - 2006/1/1. Y1 - 2006/1/1. N2 - Two MK5 (45CaO-45P2O5-5MGO-5K2O, in mol% and MT13 (45CaO-37P2O5-5MgO-13TiO 2, in mol%) glasses are prepared in the meta- and pyrophosphate regions and crystallized to obtain MK5B and MT13B, respectively. MK5B was obtained by controlled crystallization, and MT13B by powder sintering. As a result of these heat treatment processes, the crystalline phases precipitated in the glassy matrix are KCa(PO3)3, β-Ca(PO3)2, β-Ca2P2O7 and Ca4P6O19 phases for MK5B and CaTi4(PO4)6, TiP2O7, α- and β-Ca2P2O7 phases for MT13B. To assess the in vivo biological behavior of these glass ceramics, a mixed granulometry in the range 250-355 μm and 355-425 μm with a ratio ...
Preface & Acknowledgments for the First Edition vii. Preface & Acknowledgments for the Second Edition ix. Foreword to the First Edition, by Bonnie J. Dunbar, Ph.D. xi. Introduction xiii. 1 Our Constant Companions 2. 2 From Pottery to the Space Shuttle 14. 3 The Beauty of Ceramics 34. 4 Ceramics and Light 56. 5 Amazing Strength 80. 6 Ceramics and the Electronics Age 108. 7 Piezo Power 132. 8 Medical Miracles 148. 9 Ceramics and the Modern Automobile 170. 10 Heat Beaters 186. 11 The Hardest Materials in the Universe 208. 12 Energy Conservation and Conversion Efficiency 228. 13 From Pollution Control to Zero Pollution 252. 14 Whats New and Whats Coming 270. Conclusion 291. About the Author 293. Index 295. ...
Synonyms for Advanced Structural Ceramics in Free Thesaurus. Antonyms for Advanced Structural Ceramics. 4 words related to ceramic: ceramics, brick, instrumentation, instrumentality. What are synonyms for Advanced Structural Ceramics?
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The wear mechanism in such multiphase composite materials is very complex and depends upon several factors, such as volume fraction, distribution, and morphology of the ceramic particles.22 Under ideal conditions, a monolithic ceramic such as TiB2 is expected to fail in a brittle manner.1 However, the presence of the softer matrix phase, iron, between the hard ceramic particles alters the wear nature of monolithic TiB2. It has been mentioned and validated earlier that iron acts as an excellent binder for titanium-based refractory ceramics.23-25 This prevents the debonding at the TiB2 particle/iron matrix interface.18 The strength of the TiB2/Fe interface has already been addressed at the microstructural, chemical, and atomic level. Under such materials conditions, iron-based matrix phases deform plastically to accommodate the high stresses experienced by TiB2 particles. This prevents brittle fracture and fragmentation of TiB2 ceramic particles. Hence, chipping off is prevented, and no loose ...
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Fabrication of ceramic membrane has been related to commercially available material which can be considered as high cost and its reduction was thus of great importance. Silica and alumina were the main ingredients that had been utilized in the fabrication of ceramic membrane. In this study, industrial waste from sanitaryware company had been selected as the raw material for ceramic membrane fabrication since it shown the presence of silica. The first objective of this research was to study the effect of particle size distributions (PSD), sintering temperature and binder concentration on the fabrication of ceramic membrane. It was then followed by characterization of the fabricated membrane. Next, the fabricated membrane was applied in cell separation process, and finally curve fitting and fouling model was analyzed. Extrusion process has been selected as the fabrication method.. ...
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High quality ceramic powders are the basis for all further ceramics processing and we have over the last decades developed powder processing routes mainly based on wet chemical synthesis. To prepare the further ceramic bodies, consolidation is based on pressing, colloidal processing including tape casting as well as plastic shaping methods like extrusion. Central in our activities for a long time has also been the understanding of sintering and microstructural development during ceramics processing and later on also the preparation of highly textured materials. Nanocrystalline ceramics are developed using hot pressing and spark plasma sintering.. Our materials synthesis program includes: sol-gel synthesis, spray pyrolysis, hydrothermal synthesis, molten salt synthesis, combustion and chemical solution deposition. Nanostructured materials include the development of synthesis routes for nanoparticles, nanorods and tubes, hierarchical structures and composite materials.. The clean room and ...
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Bone related diseases and disorders are a significant socioeconomic burden in the United States. Autografts and allografts are most commonly used for the treatment of bone defects and non-unions; however, they are associated with limitations such as donor site morbidity and immune rejection, respectively. Over the past few decades, bone tissue engineering (BTE) using scaffold and cells has garnered significant interest as an alternative method for the repair and regeneration of bone defects. Recreation of the tissue microenvironment via the development of biomimetic scaffolds that resemble the physicochemical aspects (i.e., composition, topography, stiffness) of native bone is a promising approach that has been previously shown to improve scaffold properties and augment cellular response. In this realm, collagen type I and bioactive glass (Bioglass 45S5 (BG); an osteostimulative glass-ceramic) have been combined in numerous studies to generate hybrid scaffolds that mimic the organic and ...
Various types of grafts have been traditionally used to restore damaged bones. In the late 1960s, a strong interest was raised in studying ceramics as potential bone grafts due to their biomechanical properties. A bit later, such synthetic biomaterials were called bioceramics. In principle, bioceramics can be prepared from diverse materials but this review is limited to calcium orthophosphate-based formulations only, which possess the specific advantages due to the chemical similarity to mammalian bones and teeth. During the past 40 years, there have been a number of important achievements in this field. Namely, after the initial development of bioceramics that was just tolerated in the physiological environment, an emphasis was shifted towards the formulations able to form direct chemical bonds with the adjacent bones. Afterwards, by the structural and compositional controls, it became possible to choose whether the calcium orthophosphate-based implants remain biologically stable once incorporated into
There is great need to purify the contaminated water which the poor people in Africa have access to, and make it safe for drinking in a way that is affordable and effective. A particular challenge is the removal of pathogenic bacteria and viruses, which traditionally are eliminated by expensive nano-filtration or reverse osmosis. An added requirement is satisfying the recent recommendation of the WHO for household water-treatment systems to eliminate 99.99% of microbial contamination, which is proving exceptionally difficult to achieve in poor countries at a cost they can afford. We report on the successful testing of a low-cost, locally produced ceramic filter that has the potential to meet the WHO criterion at a cost of US$10 per year. In one version the filter consisted of a silver-impregnated, highly porous ceramic; in another modification silver nano particles were incorporated on the ceramic surface. The silver-impregnated filter was tested on water samples contaminated with selected Gram ...
TY - JOUR. T1 - Incidence of ceramic liner malseating in trident ® acetabular shell AU - Miller, Anna N.. AU - Su, Edwin P.. AU - Bostrom, Mathias P.G.. AU - Nestor, Bryan J.. AU - Padgett, Douglas E.. PY - 2009/6. Y1 - 2009/6. N2 - The low wear rates associated with ceramic hip articulations have made them a popular bearing for younger patients. Although few complications have been observed, one report revealed several instances of incomplete seating of the ceramic liner in the metallic shell. We performed a cohort study of consecutive THAs using a ceramic-ceramic bearing. Radiographic analysis showed 50 (7.2%) of the group of 694 hips had evidence of incomplete seating of the liner in the metallic shell. Although we observed no adverse effects at 6 to 12 weeks, we encourage surgeons to carefully assess liner placement in the metal shell at the time of surgery to avoid this unintended consequence and to assess placement at the time of followup so patients can be properly followed when ...
In accordance with the present invention, there is provided a method for adhering a first ceramic foam to a second ceramic foam. The method begins with impregnating a liquid resin with reinforcement fibers to form a liquid reinforced bonding resin. The liquid reinforced bonding resin is then applied to at least one of the ceramic foams. The foams are joined to each other with the liquid reinforced bonding resin disposed therebetween. The liquid reinforced bonding resin is cured to form a solid reinforced bonding resin. The solid reinforced bonding resin is pyrolyzed for adhering the first and second ceramic foams to form a ceramic bonding layer. The ceramic bonding layer is characterized by a porous ceramic matrix with reinforcement fibers disposed therein.
Blastcrete acquires Neal Mfg. Blastcrete Equipment Co. has acquired Neal Mfg., a manufacturer of asphalt sealcoating equipment. Neal has moved its operations to Blastcretes 70,000-sq.-ft. manufacturing facility in Anniston, Ala., and will operate as a division of Blastcrete. Neals products include both self-propelled and trailer-mounted machines in several sizes, as well as skid-mounted machines. Established in 1950, Blastcrete manufactures mixing, pumping, and spraying equipment for refractory, shotcrete, concrete construction and repair, underground mining and tunneling, and power generation applications.. Advanced Ceramics Mfg. receives federal research awards. (The Arizona Star) Research into new ceramic composite materials for energy, aerospace, and other applications is underway at Advanced Ceramics Mfg. Co., Tucson, Ariz., after the company received multiple federal grants. Majority-owned by the tribal San Xavier Development Authority, the company employs about 20 people, many of them ...
Sintering process is a complex of different synergetic effects during the ceramics materials consolidation. The microstructural level properties control is very important as a stage in advanced materials prognosis. SEM analysis of Yb/BaTiO3 doped ceramics showed that in samples doped with a low level of dopant and sintered at higher temperatures the grain size ranged from 10-60μm, while with the higher dopant concentration the grain size ranged between 2-15μm. The morphology of sintered BaTiO3-ceramics grains points out the validity of developing new structure analytical methods based on different geometries of grains model systems. The idea of electrical properties of BaTiO3-ceramics being influenced by intergrain microcontacts can be successfully followed if we start with the two-sphere Cobles model and also the correction of the Cobles model. In this paper, the grains contact models based on spherical, ellipsoidal and polyhedral geometries are presented making a new modeling tool... for ...
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Designing a Low-Clamping Voltage Suppressor. Through the following key select activities, students study the science of compacting ultra small ceramic particles. They evaluate the evolution of density and microstructure of ceramics as they are synthesized at high temperatures. They then use ceramics to make a voltage-protecting device.. MWM will give students an opportunity to understand the world around them in a way they have never experienced before. The modules promote an awareness of the roles science and technology play in society and guide students to take increased control of their work.. ...
first piece from ceramics class. - POTTERY, CERAMICS, POLYMER CLAY - This is the first thing I finished in my class. Its a coil pot sorta with just really little coils that had to be mashed together in the end. lol What
Wei, X. and Akinc, M. (2005) Resorption Rate Tunable Bioceramic: Si&Zn-Modified Tricacium Phosphate, in Advances in Bioceramics and Biocomposites: Ceramic Engineering and Science Proceedings, Volume 26, Number 6 (ed M. Mizuno), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470291269.ch16 ...
DAYONG MACHINERY MEDIAMedical Ceramics - ThomasNet Some medical devices, specifically, ceramics-on-ceramics in artificial joint systems, required various modifications before they became such a widely practiced---and FDA safe-procedure. Among the latest products of medical ceramics are electronic implantable ceramic sensors, a blend of medical processing and modern technology.. Lime Vibrating Screen, Lime Vibrating Screen Suppliers and ... A wide variety of lime vibrating screen options are available to you, such as linear, circular. You can also choose from food processing, ore, and chemicals. There are 354 lime vibrating screen suppliers, mainly located in Asia. The top supplying country or region is China, which supply 100% of lime vibrating screen respectively.. Slurry vibrating screen - Equipmentimes.com 6. Than the average linear vibrating screen, processing capacity increased by 20% -30%, sand removal chip removal rate increased by 10% -20%. Structure: Slurry vibrating screen is mainly ...
Several studies demonstrated that the use of graft material has better clinical results for the treatment of intrabony defects. The purpose of this study is to compare the clinical and radiographic efficacy of alloplast (Biphasic calcium phosphate) and demineralized freeze-dried bone allograft (DFDBA) in treatment of periodontal intraosseous defects. A split mouth study was conducted in 20 subjects diagnosed with chronic periodontitis presenting atleast two intrabony defects in either arch. One quadrant (Site A) received alloplast (Biphasic calcium phosphate) and the contralateral defect (Site B) received DFDBA. The results of study showed that clinically Site B (DFDBA) showed greater reduction in pocket depth and gain in clinical attachment level than site A (Biphasic calcium phosphate), however it was not statistically significant. Site A (Biphasic calcium phosphate) showed slightly more gingival marginal recession than Site B (DFDBA). Radiographically Site B (DFDBA) showed greater bone fill ...
TY - JOUR. T1 - Late-term healing in an augmented sinus with different ratios of biphasic calcium phosphate. T2 - A pilot study using a rabbit sinus model. AU - Lim, Hyun Chang. AU - Hong, Ji Youn. AU - Lee, Jung Seok. AU - Jung, Ui Won. AU - Choi, Seong Ho. PY - 2016/1/1. Y1 - 2016/1/1. N2 - Purpose: The aim of this pilot study was to determine the osteoconductivity and dimensional stability of augmented sinuses using different ratios of biphasic calcium phosphate (BCP) in a rabbit sinus model. Methods: Each sinus of New Zealand white rabbits (2.5-3.5 kg) was assigned to one of two groups: BCP with a hydroxyapatite to β-tricalcium phosphate (HA:β-TCP) ratio of 70:30 (group TCP30) and BCP with an HA:β-TCP ratio of 30:70 (group TCP70). After preparing a window in the antral wall of a sinus, the Schneiderian membrane was elevated, and the applicable material was grafted. A fluorochrome calcein green was injected five days before euthanizing the animals at four months post-surgery. The specimens ...
TY - JOUR. T1 - Gas permeability and mechanical properties of porous alumina ceramics with unidirectionally aligned pores. AU - Isobe, Toshihiro. AU - Kameshima, Yoshikazu. AU - Nakajima, Akira. AU - Okada, Kiyoshi. AU - Hotta, Yuji. PY - 2007/1/1. Y1 - 2007/1/1. N2 - Porous alumina ceramics having unidirectionally aligned cylindrical pores were prepared by extrusion method and compared with porous ceramics having randomly distributed pores prepared by conventional method, and their gas permeability and mechanical properties were investigated. SEM micrographs of the porous alumina ceramics prepared by the extrusion method using nylon fibers as the pore former showed excellent orientation of cylindrical pores. The bending strength and Weibull modulus of the extruded porous alumina ceramics with 39% porosity were 156 MPa and 17, respectively. These mechanical properties of extruded samples were higher than those of the conventional porous alumina ceramics. The strength decreased from 156 to 106 ...
1 Kajiwara N, Masaki C, Mukaibo T, Kondo Y, Nakamoto T, Hosokawa R. Soft tissue biological response to zirconia and metal implant abutments compared with natural tooth: microcirculation monitoring as a novel bioindicator. Implant Dent 2015;24(1):37-41. 2 Glauser R, Sailer I, Wohlwend A, Studer S, Schibli M, Schärer P. Experimental zirconia abutments for implant-supported single-tooth restorations in esthetically demanding regions: 4-year results of a prospective clinical study. Int J Prosthodont. 2004 May-Jun;17(3):285-90. 3 Bormann KH, Gellrich NC, Kniha H, Dard M, Wieland M, Gahlert M. Biomechanical evaluation of a microstructured zirconia implant by a removal torque comparison with a standard Ti-SLA implant. Clin Oral Implants Res. 2012;Oct;23(10):1210-6. doi: 10.1111/j.1600-0501.2011.02291.x. Epub 2011 Nov 14. 4 Institut Straumann AG, Straumann® PURE Ceramic Implants: A 100 % proof test ensures reliable implant strength. 03/14 490.028/en/B/001. www.straumann.com. 5 Bormann KH, Gellrich NC, ...
Cornings specialty glass and glass ceramics serves the ophthalmic, radiation shielding glass, glass powders and glass ceramics segments.
The present invention relates to a glass ceramic which can provide a board comprising a metal substrate and the glass ceramic coated on said substrate, particularly a board comprising said board and a fine wiring pattern applied onto said board by means of thick film printing. In particular, it specifies the composition of the glass ceramic.
Nanostructured calcium phosphate and biphasic calcium phosphates have been studied and stand out as biomaterials for bone regeneration This is due to the fact that Get Price ...
DOI: 10.11607/jomi.4020 Purpose: The aim of this study was to determine the effect of collagenated biphasic calcium phosphate (CBCP) loaded with fibroblast growth factor-2 (FGF-2) on bone regeneration in a rabbit sinus model. Materials and Methods: Bilateral sinus augmentations were performed using either FGF-2 loaded CBCP (FGF-2 group) or CBCP only (control group) in 10 rabbits. The experimental animals were euthanized at 2 weeks (n = 5) or 4 weeks (n = 5) postoperatively. Volumetric analyses were done by means of microcomputed tomography and histomorphometry. Results: The volumes of total augmentation, new bone, residual material, and fibrovascular tissue were significantly greater in the FGF-2 group than in the control group at 2 weeks, but the differences between the two groups had disappeared by 4 weeks. Histologically, the healing patterns, such as new bone formation and the resorption of residual material, did not differ notably between the two groups. The results of the histometric ...
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TY - JOUR. T1 - Reaction of bone to tricalcium phosphate ceramic pellets. AU - Cutright, Duane E.. AU - Bhaskar, Surindar N.. AU - Brady, John M.. AU - Getter, Lee. AU - Posey, William R.. PY - 1972/1/1. Y1 - 1972/1/1. N2 - This study indicates that tricalcium phosphate is well accepted by the tissue and may actually contribute mineral salts for the formation of bone at the site as the ceramic is broken down into granules.. AB - This study indicates that tricalcium phosphate is well accepted by the tissue and may actually contribute mineral salts for the formation of bone at the site as the ceramic is broken down into granules.. UR - http://www.scopus.com/inward/record.url?scp=0015337449&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0015337449&partnerID=8YFLogxK. U2 - 10.1016/0030-4220(72)90457-4. DO - 10.1016/0030-4220(72)90457-4. M3 - Article. C2 - 4502161. AN - SCOPUS:0015337449. VL - 33. SP - 850. EP - 856. JO - Oral Surgery, Oral Medicine, Oral Pathology and Oral ...
Using melt mixing, we produced a ceramic/polymer composite with a matrix of polyvinylidene fluoride (PVDF) and a filler of 5 vol.% Ni-deposited CaCu{sub 3}Ti{sub 4}O{sub 12} core-shell ceramic particles ([email protected]), and studied its prominent dielectric characteristics for the first. Its phase composition and morphology were analyzed by X-ray diffraction and scanning electron microscopy, respectively. After treating the composite films with various durations of a magnetic field treatment, we compared their dielectric properties. We found that the [email protected] ceramic had a typical urchin-like core-shell structure, and that different durations of the magnetic field treatment produced different distributions of ceramic particles in the PVDF matrix. The dielectric permittivity of the untreated [email protected]/PVDF composite was 20% higher than that of neat PVDF, and it had a low loss tangent. However, only the composite treated for 30 min in the magnetic field had an ultra-high dielectric permittivity of 1.41 × ...
Researchers at Tokyo Metropolitan University have developed a new method to make ceramic-based flexible electrolyte sheets for lithium metal batteries. They combined a garnet-type ceramic, a polymer binder, and an ionic liquid, producing a quasi-solid-state sheet electrolyte. The synthesis is carried out at room temperature, requiring significantly less energy than existing high-temperature (,1,000° C) processes. It functions over a wide range of temperatures, making it a promising electrolyte for batteries in EVs. Lithium metal anodes have a much higher theoretical capacity than the graphite anodes currently in commercial use, but in liquid-based batteries, lithium dendrites can grow, possibly short-circuiting the battery and even leading to fires and explosions. Solid-state inorganic electrolytes are safer, and a garnet-type ceramic, Li7La3Zr2O12, better known as LLZO, is now widely regarded as a promising solid-state electrolyte material for its high ionic conductivity and compatibility with ...
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The Ceramic Engineering and Science Proceeding has been published by The American Ceramic Society since 1980. This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics. Topics covered in the area of advanced ceramic include bioceramics, nanomaterials, composites, solid oxide fuel cells, mechanical properties and structural design, advanced ceramic coatings, ceramic armor, porous ceramics, and more. ...
Recent finds of 36 ceramic artifacts from the archaeological site of Vela Spila, Croatia, offer the first evidence of ceramic figurative art in late Upper Palaeolithic Europe, c. 17,500-15,000 years before present (BP). The size and diversity of this artistic ceramic assemblage indicate the emergence of a social tradition, rather than more ephemeral experimentation with a new material. Vela Spila ceramics offer compelling technological and stylistic comparisons with the only other evidence of a developed Palaeolithic ceramic tradition found at the sites of Pavlov I and Dolní Věstonice I, in the Czech Republic, c. 31,000-27,000 cal BP. Because of the 10,000-year gap between the two assemblages, the Vela Spila ceramics are interpreted as evidence of an independent invention of this technology. Consequently, these artifacts provide evidence of a new social context in which ceramics developed and were used to make art in the Upper Palaeolithic.
Sie sind hier: Bone cement adhesion on ceramic surfaces - surface activation of retention surfaces of knee endoprostheses by atmospheric pressure plasma vs. thermal surface treatment. ...
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Apatite based glass-ceramics are some of the most bioactive materials found to date. They do not require fibrous encapsulation and bond to bone directly through an apatite layer. Apatite based glass-ceramics exhibit relatively poor biaxial flexural strength, hence limiting their applications to non-load bearing implants. The addition of mica results in a material that is highly machinable, and provided that a suitable interlocking microstructure can be produced, the strength will be increased. The aim of this work is to investigate how altering the heat treatment affects the crystallisation and the final mechanical properties of three different compositions of glass-ceramic. The glass system studied is the ternary glass system; barium fluorphlogopite (Bao.sMgafSiaAlOiojFz), fluorapatite (CaiofPO^eFz) and cordierite (MgzAUSisOis). The three compositions differ by the mol% of fluorapatite forming feedstock in the precursor glass. Glass-ceramics formed by heat-treating a glassy precursor are ...
UNSPECIFIED (1994) CRYSTALLISATION OF GRAIN BOUNDARY PHASES IN SILICON NITRIDE AND SIALON CERAMICS. In: NATO Advanced Research Workshop on Tailoring of High Temperature Properties of Si3N4 Ceramics, SCHLOSS RINGBERG, MUNICH, GERMANY, OCT 06-09, 1993. Published in: TAILORING OF MECHANICAL PROPERTIES OF SI3N4 CERAMICS, 276 pp. 217-231 ...
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Microporous glass ceramic with skeleton of CaTi4(PO¬4)6 with average pore size of 12.7 nm has been synthesized and used as a carrier of glucose oxidase. The glass ceramic was prepared by controlled heat treatment of glass samples, which causes the phase separation in their structure and creates CaTi4(PO¬4)6 and β-Ca3(PO4)2 phases. The β-Ca3(PO4)2 phase was dissolved by soaking the glass ceramics in HCl and CaTi4(PO¬4)6 built the skeleton of microporous glass ceramic. Analysis of the ability of the carrier for immobilization of glucose oxidase (GOx) was undertaken. Average amount of immobilized enzyme and percentage of enzyme activity on the carrier were 27 gr GOx/gr carrier and 60.15%, respectively. Effect of pH and temperature variations on the enzyme activity has been studied and results demonstrated that maximum activity for both free and immobilized enzyme was at T=40˚C and pH=7.0. Due to the same value of maximum activity, no serious conformational change of enzyme had taken place through
A high purity α-tricalcium phosphate ceramic having a superior biocompatibility for use mainly as a bone filler, is produced by shaping a powder material formed by a wet method, followed by sintering it and then cooling at a predetermined rate.
Hydroxyapatite (HA) is a particular crystal form and composition of a larger family of calcium phosphates. Calcium phosphate ceramics are perhaps the most biocompatible synthetic substances for use in hard tissue repair with over 15 years of clinical history. The high degree of biocompatibility is a feature of HA and is largely attributable to its natural presence in bone. When HA is implanted into a bony site it has been shown to be slowly absorbed into the body and replaced by new bone. [2 ...
The present invention provides a functionally graded glass/ceramic/glass sandwich system especially useful in damage resistant, ceramic dental and orthopedic prosthesis. The functionally graded glass/
TY - JOUR. T1 - Conformational change of protein due to contact with bioceramic materials. AU - Nagai, S.. AU - Tsuru, K.. AU - Hayakawa, S.. AU - Osaka, A.. PY - 2005/1/1. Y1 - 2005/1/1. N2 - The structural change of bovine serum albumin (BSA) was analyzed by means of ultraviolet (UV) and circular dichroism (CD) spectroscopy due to in contact with ceramics powders such as Al2O3, SiO2, TiO2, ZrO2, hydroxyapatite and β-tricalcium phosphate. The absorbance of the UV spectra increased for the BSA solution in contact with TiO2, ZrO2 and Al2O3, that is, the BSA solution clouded. This indicated the aggregation of BSA after contact with those ceramics powders. The CD spectroscopy showed that the ordered secondary structure of BSA was diminished on contact with TiO2 and ZrO2. We discussed the protein adsorption property of ceramics on the basis of the magnitude of the interaction forces between proteins and the bioceramics.. AB - The structural change of bovine serum albumin (BSA) was analyzed by means ...
Hip Replacement Devices Market By End User (Ambulatory Surgical Centres, Hospitals, Orthopaedic Clinics), By Product (total, Fixed, Mobile-bearing, Partial Hip Replacement, Hip Resurfacing And Revision Hip Replacement), By Material ( Metal On Metal, Metal On Polyethylene, Ceramic On Metal, Ceramic On Polyethylene And Ceramic On Ceramic) And By Region - Global Industry Analysis, Size, Share, Growth, Trends And Forecasts (2016-2021)
Thermal Ceramics the global heat management specialist, has announced the launch of an high-temperature insulating wool that matches the performance of refractory ceramic fibres and is not classified as a carcinogen within the European Union. Superwool 607 HT is an alkaline earth silicate fibre showing low shrinkage up to temperatures of 1,300ºC ...
Abstract: The objective of this study was to physico/chemically characterize a commercially available and a newly developed Bioglass and also to evaluate their degradation properties. Materials and Method: Two bioresorbable glasses were utilized, a bioglass synthesized at Chemical Engineering College (University of São Paulo, Lorena, São Paulo) (BG1), and the other bioglass utilized was Biogran (BG2) (3i Implant Innovations, Brazil). Particles size distribution histograms were developed for both materials, and then they were characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD) and Fourier Transform Infrared (FTIR) before and after immersion in simulated body fluid (SBF) for 30, 60, and 90 days. Results: The particle size distribution showed that the mean particle diameters at 10%, 50%, and 90% of the total volume were 17.65, 66.18, and 114.71 µm for BG1, and 354.54, 437.5, 525.00 µm for BG2. SEM images of BG1 showed that the as-received material had a rough surface ...
China Aluminum Oxide Ceramic Heat Dissipation, Find details about China Aluminum Oxide Ceramic, Aluminum Oxide Ceramic Plates from Aluminum Oxide Ceramic Heat Dissipation - Shenzhen City Jia Rifeng Tai Electronic Technology Co., Ltd.
A transition metal-containing ceramic made by the process comprising the step of pyrolyzing an organometallic linear polymer containing at least one metallocenylene unit, at least one silyl or siloxyl unit, and at least one acetylene unit to form a ceramic; where the ceramic has a ceramic yield of at least about 75% by weight. A transition metal-containing ceramic made by the process comprising the steps of: forming an organometallic linear polymer containing at least one metallocenylene, at least one silyl or siloxyl unit, and at least one acetylene unit; crosslinking said linear polymer through the acetylene units, thereby forming a thermoset; and pyrolyzing said thermoset to form a ceramic; where the ceramic has a ceramic yield of at least about 75% by weight.
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The solid-state synthesis and structural characterisation of perovskite BaSn1−xScxO3−δ (x = 0.0, 0.1, 0.2, 0.3, 0.4) and its corresponding hydrated ceramics are reported. Powder and neutron X-ray diffractions reveal the presence of cubic perovskites (space group Pm[3 with combining macron]m) with an increasing cell parameter as a function of scandium concentration along with some indication of phase segregation. 119Sn and 45Sc solid-state NMR spectroscopy data highlight the existence of oxygen vacancies in the dry materials, and their filling upon hydrothermal treatment with D2O. It also indicates that the Sn4+ and Sc3+ local distribution at the B-site of the perovskite is inhomogeneous and suggests that the oxygen vacancies are located in the scandium dopant coordination shell at low concentrations (x ≤ 0.2) and in the tin coordination shell at high concentrations (x ≥ 0.3). 17O NMR spectra on 17O enriched BaSn1−xScxO3−δ materials show the existence of Sn-O-Sn, Sn-O-Sc and Sc-O-Sc ...
TY - JOUR. T1 - Dielectric and electromechanical properties of textured niobium-doped bismuth titanate ceramics. AU - Hong, Seong Hyeon. AU - Trolier-McKinstry, Susan. AU - Messing, Gary L.. PY - 2000/1/1. Y1 - 2000/1/1. N2 - Textured Nb-doped bismuth titanate ceramics (Bi4Ti3-x/5-Nbx/5O12, where x = 0.02) were fabricated by templated grain growth. It was found that the use of a fine precursor powder led to enhanced densification of the ceramic, while Nb doping reduced electrical conduction and dielectric loss, which enabled poling at high temperatures and high electric fields. Sintered tapes showed anisotropic dielectric and piezoelectric properties when measured parallel and perpendicular to the casting plane (e.g., the remanent polarization differed by more than a factor of 15 in the two directions). The piezoelectric constant parallel to the casting plane of the tape was approx. 30 pC/N, or approx. 77% of the single-crystal value. Thermal depoling studies demonstrated that high-temperature ...
HotEnd Works Only Focusing on 3D Printed Technical Ceramics. HotEnd Works, LLC has recently decided to no longer offer 3D printed plastic prototypes and manufacturing in order to devote 100% of time to the 3D printing of technical ceramic prototypes.  This includes alumina and zirconia ceramics. - PR12286277
The performance of multifunctional porous ceramics is often hindered by the seemingly contradictory effects of porosity on both mechanical and non-structural properties and yet a sufficient body of knowledge linking microstructure to these properties does not exist. Using a combination of tailored anisotropic and hierarchical materials, these disparate effects may be reconciled. In this project, a systematic investigation of the processing, characterization and properties of anisotropic and isotropic hierarchically porous ceramics was conducted. The system chosen was a composite ceramic intended as the cathode for a solid oxide fuel cell (SOFC). Comprehensive processing investigations led to the development of approaches to make hierarchical, anisotropic porous microstructures using directional freeze-casting of well dispersed slurries. The effect of all the important processing parameters was investigated. This resulted in an ability to tailor and control the important microstructural features ...
Zirconia Aluminosilicate Refractory Ceramic Fibres are fibres covered by index number 650-017-00-8 in Annex VI, part 3, table 3.1 of Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, and fulfil the three following conditions: a) oxides of aluminium, silicon and zirconium are the main components present (in the fibres) within variable concentration ranges b) fibres have a length weighted geometric mean diameter less two standard geometric errors of 6 or less micrometres (µm). c) alkaline oxide and alkali earth oxide (Na2O+K2O+CaO+MgO+BaO) content less or equal to 18% by weight ...
Zirconia Aluminosilicate Refractory Ceramic Fibres are fibres covered by index number 650-017-00-8 in Annex VI, part 3, table 3.1 of Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, and fulfil the three following conditions: a) oxides of aluminium, silicon and zirconium are the main components present (in the fibres) within variable concentration ranges b) fibres have a length weighted geometric mean diameter less two standard geometric errors of 6 or less micrometres (µm). c) alkaline oxide and alkali earth oxide (Na2O+K2O+CaO+MgO+BaO) content less or equal to 18% by weight ...
Among physicians and biologists there has long been the consensus: tiled stoves with heat storage ceramics ideally promote a healthy indoor climate, coziness and well-being. Of all different heating methods developed so far it is the ceramic radiant heat of the tiled stoves which is most similar to the positive effects of the rays of the sun.. Every body radiates energy in form of electromagnetic radiation. If rays meet surfaces of bodies and objects the contained energy is released in form of heat. The longer those waves are, the more gentle and comfortable we experience the warmth. The long-wave infrared radiation of the heat storage ceramics amount to approx. 9.000 nm; this is equivalent to the infrared C range in the electromagnetic spectrum. Radiant heat in precisely this long-wave C-range is experienced by us humans as particularly comfortable and soothing.. ...
High-Tc superconducting ceramic oxide products and macroscopic and microscopic methods for making such high-Tc superconducting products. Completely sealed high-Tc superconducting ceramic oxide provides are made by a macroscopic process including the steps of pressing a superconducting ceramic oxide powder into a hollow body of a material inert to oxygen; heat treating the superconducting ceramic oxide powder packed body under conditions sufficient to sinter the ceramic oxide powder; and then sealing any openings of the body. Optionally, a waveform or multiple pulses of alternate magnetic filed can be applied during the heat treatment. The microscopic method of producing a high-Tc superconducting ceramic oxide product includes the steps of making a high-Tc superconducting ceramic oxide thin film; optionally sintering the deposited thin film in a magnetic filed; and removing partial oxygen content of the thin film by a scanning tunneling electron treatment machine to form a microscopic insulation layer
Hydroxapatite (HA) is a stable phase with low dissolution rate in body fluid. Meanwhile, β-tricalcium phosphate (β-TCP) is rather soluble but the dissolution rate is too fast for bone bonding. Therefore a mixture of both is desirable to control the bioresorbability. In this work, calcium phosphate powder has been synthesized via sol gel and wet precipitation method to compare phase behaviour of these powders upon calcination. XRD result clearly revealed that both as-synthesized powders were pure HA with good purity. The decomposition of HA to TCP took place in the range of 700-800 °C and 800-900 °C for sol gel and wet chemical precipitation powder, respectively. The weight loss detected at 700-850°C in TGA analysis confirmed the presence of this biphasic mixtures. From FTIR analysis, profound change in OH- band intensity was attributed to the increased in HA crystallinity with calcination temperature.. ...
Ceramics[edit]. Gum arabic has a long history as additives to ceramic glazes. It acts as a binder, helping the glaze adhere to ... Parmalee, Cullen W.; Harman, Cameron G. (1973). Ceramic Glazes (3rd ed.). Cahners Bookj. pp. 131-133, 145, 589. ISBN 0-8436- ...
Ceramics[edit]. The nitrides of silicon, aluminium and titanium as well as silicon carbide and other ceramics are increasingly ...
Ceramics[edit]. Fatyanovo ceramics show mixed Corded Ware/Globular Amphorae traits. The later Abashevo culture pottery looked ... Ceramic finds indicate Balanovo coexisted with the Volosovo people (mixed Balanovo-Volosovo sites), and also displaced them.[7] ... The Volosovo culture of indigenous forest foragers was different in from the Fatyanovo culture its ceramics, economy, and ... the presence of battle-axes and ceramics.[5] ...
Ceramic metal halide (CMH, CDM)[edit]. Ceramic metal halide (CMH) lamps are a relatively new type of HID lighting, and the ... The discharge of a ceramic metal halide bulb is contained in a type of ceramic material known as polycrystalline alumina (PCA ... Ceramic metal halide lights are started with a pulse-starter, just like other "pulse-start" metal halides.[15] ... One common example of a pulse start metal halide is the ceramic metal halide (CMH). Pulse start metal halide bulbs can come in ...
Chemical vapor deposition can place a film of a ceramic on another material. Cermets are ceramic particles containing some ... Ceramics are as soft as clay or as hard as stone and concrete. Usually, they are crystalline in form. Most glasses contain a ... Bonding in ceramics and glasses uses covalent and ionic-covalent types with SiO2 (silica or sand) as a fundamental building ... Green, D.J.; Hannink, R.; Swain, M.V. (1989). Transformation Toughening of Ceramics. Boca Raton: CRC Press. ISBN 978-0-8493- ...
Ceramic capacitors Ceramic Class 1 capacitors. paraelectric ceramic mixture of Titanium dioxide modified by additives. ... Ceramic capacitors,. Class 1. paraelectric. 12-40. , 100(?). 1 Ceramic capacitors,. Class 2. ferroelectric. 200-14,000. , 35. ... IEC/EN 60384-8-Fixed capacitors of ceramic dielectric, Class 1. *IEC/EN 60384-9-Fixed capacitors of ceramic dielectric, Class 2 ... A ceramic capacitor is a non-polarized fixed capacitor made out of two or more alternating layers of ceramic and metal in which ...
Ceramics[edit]. Chimú ceramics were crafted for two functions: containers for daily domestic use and those made for ceremonial ... Ceramics were usually stained black, although there are some variations. Lighter ceramics were also produced in smaller ... Park, Yumi (2012). Mirrors of Clay: Reflections of Ancient Andean Life in Ceramics from the Sam Olden Collection. Jackson, MS: ... Park, Yumi (2012). Mirrors of Clay: Reflections of Ancient Andean Life in Ceramics from the Sam Olden Collection. Jackson, MS: ...
Ceramic[edit]. Ceramic can also be formed into shapes via extrusion. Terracotta extrusion is used to produce pipes. Many modern ... Commonly extruded materials include metals, polymers, ceramics, concrete, modelling clay, and foodstuffs. The products of ...
"Bone China from Turkey" Ceramics Technical; May2005, Issue 20, p29-32. *^ "Mason's Ironstone Retains Its Decorative Tradition ...
Glass and ceramics[edit]. He was a pioneer in the glass and ceramic industry of India, who founded Allahbad Glass Factory[1][2] ... He built numerous railway lines and railway bridges and was pioneer in glass & ceramic industry of India, for which he was ... London for his contributions to glass and ceramic industry of world. Others conferred fellowship with him were John Northwood ...
Ceramic Abstracts[edit]. CSA publishes Ceramic Abstracts / World Ceramics Abstracts in conjunction with CERAM Research Ltd. ... The print equivalent for this database is World Ceramics Abstracts and Ceramic Abstracts.[3] ... Ceramic Abstracts. *^ "CSA / ASCE Civil Engineering Abstracts". Database description. ProQuest/CSA. July 2010. Retrieved 2010- ... ceramics, polymers, and composites used in engineering application. For all metals, alloys, polymers, ceramics, and composites ...
Conservation Workshop of Ceramic, Glass and small Finds[edit]. Since 1994 the workshop works. Next to the work area there is a ...
Ceramics Volume 5.7: Cerargyrite - Charing Cross Volume 5.8: Chariot - Chatelaine Volume 6.1: Châtelet - Chicago ...
Ceramics. Mumyōi-yaki (無名異焼)[71][72][73]. Mumyōi is the red ferrous clay of Sado island; production in Aikawa from the early ... Ceramics. Bizen-yaki (備前焼)[62][63][64][65]. High-fired, unglazed stoneware; one of the six ancient kilns; production in and ... Ceramics. Kakiemon (nigoshide) (柿右衛門 (濁手))[64][68][69][70]. A type of iro-e overglaze enamel; created by Sakaida Kakiemon in ... Ceramics. Onta ware (小鹿田焼)[74][75][76]. Thick slipware; production in Hita from the early eighteenth century; one of the 100 ...
Wang, Tianming; Derby, Brian (2005). "Ink-Jet Printing and Sintering of PZT". Journal of the American Ceramic Society. 88 (8): ... Lejeune, M.; Chartier, T.; Dossou-Yovo, C.; Noguera, R. (2009). "Ink-jet printing of ceramic micro-pillar arrays". Journal of ... Journal of the European Ceramic Society. 28 (13): 2625-2628. doi:10.1016/j.jeurceramsoc.2008.03.004. ISSN 0955-2219.. ... Journal of the American Ceramic Society. 91 (7): 2083-2087. doi:10.1111/j.1551-2916.2008.02402.x.. ...
Houses were built by digging a rounded rectangular pit a few feet deep. Then they were rammed, and a lattice of wattle was woven over it. Then it was plastered with mud. The floor was also rammed down. Next, a few short wattle poles would be placed around the top of the pit, and more wattle would be woven to it. It was plastered with mud, and a framework of poles would be placed to make a cone shape for the roof. Poles would be added to support the roof. It was then thatched with millet stalks. There was little furniture; a shallow fireplace in the middle with a stool, a bench along the wall, and a bed of cloth. Food and items were placed or hung against the walls. A pen would be built outside for animals. Yangshao villages typically covered ten to fourteen acres and were composed of houses around a central square.[6] ...
Ceramics (Alfred). *Cornell University *Agriculture and Life Sciences. *Human Ecology. *Industrial and Labor Relations ...
Ceramics International. 46 (10): 16068-16073. doi:10.1016/j.ceramint.2020.03.158.. ...
Ceramic-PTFE laminate, eg 6010 board. *Alumina ceramic. *Silicon. *Gallium arsenide. *Sapphire ...
Goldscheider ceramics Consumer goods Durable household products Vienna 1885 Ceramics, art Julius Blum Consumer goods ...
Industrial Ceramics. London: Chapman & Hall, 1963 *^ a b c Dictionary Of Ceramics. Arthur Dodd & David Murfin. 3rd edition. The ... Dictionary of Ceramics; 3rd edition. The Institute Of Minerals, 1994. *^ Valenstein, S. (1998). A handbook of Chinese ceramics ... Standard Terminology of Ceramic Whiteware and Related Products: ASTM Standard C242. *^ a b Arthur Dodd & David Murfin. ... Dictionary of Ceramics; 3rd edition. The Institute of Minerals, 1994. *^ Encyclopædia Britannica Jasperware is unglazed ...
Developments in ceramic armor[edit]. Ceramic materials, materials processing and progress in ceramic penetration mechanics are ... Failure of ceramic plates by cracking must also be controlled.[54] For this reason many ceramic rifle plates are a composite. ... The strike face is ceramic with the backface formed of laminated fiber and resin materials. The hardness of the ceramic ... This combined field of ceramics armor research is broad and is perhaps summarized best by The American Ceramics Society. ACerS ...
Ceramics Club. *Chess Club. *Christian Club on Campus. *Close Up. *Culinary Arts ...
"Raku FAQs." Ceramics Today. Ceramics Today, Sept. 2002. Web. 6 May 2010. Herb, Bill. "What Is Raku." Dimensional Design. Bill ... Glazes: Materials, Mixing, Testing, Firing." » Ceramic Arts Daily - Featured Tip of the Day. Ceramic Publications Company, 5 ... Raku ware marked an important point in the historical development of Japanese ceramics, as it was the first ware to use a seal ... Both the name and the ceramic style have been passed down through the family (sometimes by adoption) to the present 15th ...
MgO doping has been shown to effectively inhibit grain growth in ceramics and improve their fracture toughness by transforming ... Ceramics International. 39 (8): 8979-8983. doi:10.1016/j.ceramint.2013.04.098.. ...
"Influence of stearic acid on suspension structure and green microstructure of injection-molded zirconia ceramics". Ceramics ... Stearic acid is a common lubricant during injection molding and pressing of ceramic powders.[12] It is also used as a mold ...
JEL: L61 - Metals and Metal Products; Cement; Glass; Ceramics. JEL: L62 - Automobiles; Other Transportation Equipment. JEL: L63 ...
Wiederhorn, S. M.; Bolz, L. H. (1970-10-01). "Stress Corrosion and Static Fatigue of Glass". Journal of the American Ceramic ... Kingery, W.D. (1976). Introduction to ceramics. New York: Wiley. ISBN 978-0471478607. .. ...
METALS/POLYMERS/CERAMICS)." Advanced Materials & Processes. 165.6 (June 2007): 9(1). Expanded Academic ASAP. Gale. Gale ...
During this period the bow and arrow and ceramic pottery were also introduced.[46] In later periods cities of considerable size ... excavations in Central Europe have revealed that early Neolithic Linear Ceramic cultures ("Linearbandkeramik") were building ...
HSC Ceramics, founded in 2003, are expert manufacturers of ceramic bicycle bearings that are of exceptional high quality and ... HSC ceramic bearings are grade 3 silicon nitride (Si3N4) balls, matched with hardened steel races, and low-friction seals and ... HSC hybrid ceramic bottom brackets are ideal if you desire a distinguishable performance upgrade over a standard bottom bracket ... and many ceramic hybrid manufacturers use grade 5 ceramic balls. ... Ceramic bearings allow you to cycle faster and for longer, with ...
Advances in Ceramic Armor IV. Part I: Transparent Glasses and Ceramics], Ceramic Engineering and Science Proceedings, Vol. 29 ( ... Belyakov, A.V., "Production of Transparent Ceramics (Review)", Science for Ceramics Manufacture, Glass and Ceramics, Vol. 52, p ... 2008). "Transparent 8 mol% Y2O3-ZrO2 (8Y) Ceramics". Journal of the American Ceramic Society. 91: 813. doi:10.1111/j.1551- ... Prochazka, S.; Klug, F. J. (1983). "Infrared-Transparent Mullite Ceramic". Journal of the American Ceramic Society. 66: 874. ...
The Distinguished Life Member Award of the American Ceramic Society is the highest honor accorded to members of the scientific ... The dynamic compressive strength of ceramic armor materials is difficult to obtain experimentally due to the sensitivity of ... Medical implants and spacecraft can suddenly go dead, often for the same reason: cracks in ceramic capacitors, devices ... Studying the fractures of industrially important materials such as ceramics and glasses provides important clues on why ...
... reports on advances in basic and applied research and plant production techniques in glass and ceramics. The ... Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The ... Glass and Ceramics reports on advances in basic and applied research and plant production techniques in glass and ceramics. The ... Glass and Ceramics. Editor-in-Chief: Lyudmila V. Sokolova. ISSN: 0361-7610 (print version). ISSN: 1573-8515 (electronic version ...
The transformation of ceramic, metal and other materials into forms that feel so organic can be magical, said Mark Piolet, a ... The ceramic vessels of Nikolai and Simon Haas, 29-year-old twin brothers from L.A., seem simultaneously human, fungal and ... Supernatural Ceramics. As decorating with ordinary shells and skulls becomes passé, designers are going wild for high-end, ... As decorating with ordinary shells and skulls becomes passé, designers are going wild for high-end, ceramic riffs on organic ...
Ceramics Ceramics can be defined as heat-resistant, nonmetallic, inorganic solids that are (generally) made up of compounds ... Ceramics Dictionary of American History COPYRIGHT 2003 The Gale Group Inc.. CERAMICS. CERAMICS. SeeArt: Pottery and Ceramics . ... Modern ceramics include oxide ceramics, magnetic ceramics, ferroelectric ceramics, nuclear fuels, nitrides, carbides, and ... Modern ceramics include oxide ceramics, magnetic ceramics, ferroelectric ceramics, nuclear fuels, nitrides, carbides, and ...
What are Ceramic Materials?. Ceramics might be thought of as the close cousin of glass. Both materials are inorganic. Both have ... As with glass, materials scientists can manipulate the formulas of ceramics and glass-ceramics to achieve a wide variety of ... Some ceramics are virtually impervious to electricity and heat, making them ideal for applications ranging from insulators in ... Other ceramics have highly conductive properties and have formed a new and growing category called electroceramics. These ...
Ultra-high-temperature ceramics (UHTCs) are a class of refractory ceramics that offer excellent stability at temperatures ... 1957). "Properties of thorium oxide ceramics". Journal of the American Ceramic Society. 40 (2): 63-68. doi:10.1111/j.1151- ... Chen.TJ (1981). "Fracture characteristic of ThO2 ceramics at high-temperature". American Ceramic Society Bulletin. 60: 923.. ... 2002). "Evaluation of ultra-high temperature ceramics for aeropropulsion use". Journal of the European Ceramic Society. 22 (14- ...
Public Comments on Linde Ceramics Plant Documents. How to Submit Comments. Comments on Linde Ceramics Plant Documents can be ... Document Archive for Linde Ceramics Plant. *An Exposure Matrix for Linde Ceramics Plant (including Tonawanda Laboratory) * ... Advisory Board and NIOSH Discussions on Linde Ceramics Plant. The Linde Ceramics Plant discussion papers listed below are ... SC&A Draft: A Review of NIOSHs Program Evaluation Report DCAS-PER-042, "Linde Ceramics Plant TBD Revision"pdf icon. Contract ...
The development of ceramic art in Europe is remarkable. The ceramics industry boom has not just marked the economic development ... The art of ceramics is inextricably tied to early European exchanges and reflects both the common identity of Europe and the ... This ceramics identity, which continues to shape many cities across Europe, is now accessible by travellers along the European ... The traveller can appreciate the art of living in the destinations located along the European Route of Ceramics, by choosing a ...
Ceramics has a fully-equipped studio within the Fine Arts Center, with equipment for throwing and hand-building. The kiln yard ... Ceramics has a fully-equipped studio within the Fine Arts Center, with equipment for throwing and hand-building. The kiln yard ...
The ceramics process is a simulation of the geological transformation: the clay mixed with water is modeled, dried and then ... "Seeking the reason for my fascination with the body theme, I set a battle with myself, through ceramics, shaping, cutting, ... Through his hands, the artist expresses his thoughts, ideas and emotions, modeling the ceramic body (clay) and creating works ... brushing different colors, printing on the ceramic surface and transforming by fire, perpetuates the gesture performed by my ...
In the space of ceramics, it leads to new materials that, both as bulk and thin films, will play important roles in technology ... In this Review, we discuss the current state of the disordered ceramics field by examining the applications and the high- ... The valuable combination of disorder and non-metallic bonding gives rise to high-entropy ceramics. This Review explores the ... Other high-entropy disordered ceramics rapidly followed, stimulating the addition of more components to obtain materials ...
3M makes products that make a real impact in your everyday life. Our products have made driving at night easier, buildings safer materials lighter, faster and better for a better planet.
Ceramics, as is pointed out in the article ceramic composition and properties, are traditionally described as inorganic, ... Advanced ceramics, substances and processes used in the development and manufacture of ceramic materials that exhibit special ... Alternative Titles: engineering ceramics, fine ceramics, high-performance ceramics, high-tech ceramics, technical ceramics ... high-tech ceramics, and high-performance ceramics. The terms engineering ceramics and fine ceramics are used in the United ...
You must be majoring in ceramics to be eligible for this award. ... The Florence Henderson Ceramics Scholarship is available to ...
Archaeological Site Ceramic Production Archaeological Analysis Extensive Ability Ceramic Object These keywords were added by ... Sinopoli C.M. (1991) Approaches to Archaeological Ceramics. In: Approaches to Archaeological Ceramics. Springer, Boston, MA. * ...
... covers topics of the theory, manufacturing technology, and properties of powder; ... Powder Metallurgy and Metal Ceramics. Editor-in-Chief: Yuri M. Solonin. ISSN: 1068-1302 (print version). ISSN: 1573-9066 ( ... Powder Metallurgy and Metal Ceramics is a translation of the Ukrainian journal Poroshkovaya Metallurgiya. The Russian volume- ... Powder Metallurgy and Metal Ceramics is a translation of the peer-reviewed Ukrainian journal Poroshkovaya Metallurgiya. ...
Media in category "Gzhel ceramics". The following 47 files are in this category, out of 47 total. ... Retrieved from "https://commons.wikimedia.org/w/index.php?title=Category:Gzhel_ceramics&oldid=137513555" ...
The works featured in this show are presented as science disguised as magic, ordinary household objects that grow at will in a kind of mineral happening.. ...
Ceramics (CER) Archived Available Formats: HTML , PDF Document Type: Program Announcements & Information. View Program Page. ...
Heath Ceramics owners Robin Petravic, left, and Catherine Bailey, center, have teamed with local potter Adam Silverman of ... Heath Ceramics owners Robin Petravic, left, and Catherine Bailey, center, have teamed with local potter Adam Silverman of ... Bowls stacked on a table in Heath Ceramics new Los Angeles store reflect the distinctive glazes that have built the companys ... Bowls stacked on a table in Heath Ceramics new Los Angeles store reflect the distinctive glazes that have built the companys ...
American Ceramic Society., 2000 - Ceramics. 0 Reviewshttps://books.google.com/books/about/Ceramic_Abstracts.html?id= ... 11 refs aerogel alumina amorphous analysis annealing APPLICATIONS atoms BARIUM behaviour bond CALCIUM carbon Ceramic ... electron energy English EPITAXIAL Euro Ceramics fabricated ferroelectric fibre formation fracture fumace glass glass-ceramics ... books.google.comhttps://books.google.com/books/about/Ceramic_Abstracts.html?id=2IsRAQAAMAAJ&utm_source=gb-gplus-shareCeramic ...
Geoff McFetridge x Heath Ceramics Design in Time: One-of-a-kind clocks premiere at Heath Ceramics Pilar Vilades, Heath Crosses ... Amos Klausner, "The Legacy of Edith Heath and Heath Ceramics" in Heath Ceramics: The Complexity of Simplicity, page 26. Amos ... Amos Klausner, "The Legacy of Edith Heath and Heath Ceramics" in Heath Ceramics: The Complexity of Simplicity, page 39. Amos ... Over the following years, Heath Ceramics continued to sell its ceramics directly and through retailers, and also began to ...
... there are ceramic museums with ceramic art made by Waechtersbach ceramics. "Waechtersbach USA - Waechtersbach". Retrieved ... Waechtersbach ceramics is a German ceramics manufacturer in Brachttal near Wächtersbach, which was founded in 1832 by the ... During the early 20th century, Waechtersbach introduced Art Nouveau style ceramics. It made works designed by Joseph Maria ... Waechtersbach USA - Official Homepage Waechtersbach Germany - Official Homepage Ceramic Hob Cooktop Safety v t e. ...
Making ceramics is a fun and interesting hobby for people of all ages and abilities. Once you know the basics, youll be able ... v4-460px-Make-Ceramics-Step-5-Version-5.jpg","bigUrl":"\/images\/thumb\/d\/d9\/Make-Ceramics-Step-5-Version-5.jpg\/aid223589-v4 ... v4-460px-Make-Ceramics-Step-6-Version-5.jpg","bigUrl":"\/images\/thumb\/e\/e8\/Make-Ceramics-Step-6-Version-5.jpg\/aid223589-v4 ... v4-460px-Make-Ceramics-Step-2-Version-5.jpg","bigUrl":"\/images\/thumb\/6\/65\/Make-Ceramics-Step-2-Version-5.jpg\/aid223589-v4 ...
Julia Greer, at the California Institute of Technology, has made nano ceramic lattices that are now the lightest, strongest ... And, as ceramics make excellent thermal buffers, the thinnest of ceramic sheets could be used anywhere two temperatures need to ... Ceramics, be they new or ancient, are typically strong and light, but always brittle: their tendency to shatter has long kept ... Before that change can be put to use, Greer and her colleagues need to find a faster way to process the ceramic. The two-photo ...
Three fundamental ceramics classes, Hand Building, Throwing, and Advanced Throwing, incorporate a variety of technical and ... Ceramics at UMass Amherst offers a curriculum that respects the history and persistence of pottery while remaining up to date ... Ceramics. Ceramics at UMass Amherst offers a curriculum that respects the history and persistence of pottery while remaining up ... Three fundamental ceramics classes, Hand Building, Throwing, and Advanced Throwing, incorporate a variety of technical and ...
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  • Heath Ceramics in L.A. (latimes.com)
  • Heath Ceramics owners Robin Petravic, left, and Catherine Bailey, center, have teamed with local potter Adam Silverman of Atwater Pottery to open the Sausalito-based studio's first Los Angeles store. (latimes.com)
  • Bowls stacked on a table in Heath Ceramics' new Los Angeles store reflect the distinctive glazes that have built the company's following. (latimes.com)
  • Roger Lee, an apprentice to potter Adam Silverman at Heath Ceramics, has been finding an audience for his own designs, which include serving bowls and hanging planters with great palettes and textures. (mcall.com)
  • Heath Ceramics has been part of the cultural landscape of America since Edith and Brian Heath began dinnerware production in 1947. (linktv.org)
  • Heath Ceramics is an American company that designs, manufactures, and retails goods for tabletop and home, and is best known for handcrafted ceramic tableware and architectural tile in distinctive glazes. (wikipedia.org)
  • Founded in Sausalito, California, by Edith Heath (1911-2005) and her husband Brian Heath (1911-2001) in 1948, Heath Ceramics is now owned and run by Catherine Bailey and Robin Petravic, who purchased the company in 2003. (wikipedia.org)
  • Other retailers, such as Neiman Marcus, Marshall Field's, Bullocks, and the City of Paris began to order her tableware, and in 1948 she opened Heath Ceramics in Sausalito. (wikipedia.org)
  • By 1949, Heath Ceramics was producing 100,000 pieces a year. (wikipedia.org)
  • Over the following years, Heath Ceramics continued to sell its ceramics directly and through retailers, and also began to supply restaurants with dinnerware. (wikipedia.org)
  • In 2003, designers Robin Petravic, a product design engineer, and Catherine Bailey, an industrial designer, purchased Heath Ceramics from the Brian & Edith Heath Trust. (wikipedia.org)
  • All exchanges sent back to Heath Ceramics must be accompanied with a receipt or original packing slip and an Exchange Form. (heathceramics.com)
  • Any breakage in shipment must be reported to Heath Ceramics within 5 days of receiving the shipment. (heathceramics.com)
  • Advanced ceramics are referred to in various parts of the world as technical ceramics, high-tech ceramics, and high-performance ceramics. (britannica.com)
  • Our general brochure gives an overview on what Philips Ceramics Uden (PCU) can do for you and the typical characteristics of our technical ceramics. (philips.com)
  • Ceramics can be defined as heat-resistant, nonmetallic, inorganic solids that are (generally) made up of compounds formed from metallic and nonmetallic elements. (encyclopedia.com)
  • Ceramics, as is pointed out in the article ceramic composition and properties , are traditionally described as inorganic, nonmetallic solids that are prepared from powdered materials, are fabricated into products through the application of heat, and display such characteristic properties as hardness, strength, low electrical conductivity, and brittleness. (britannica.com)
  • This definition has been supplied by the 1993 Versailles Project on Advanced Materials and Standards (VAMAS), which described an advanced ceramic as "an inorganic, nonmetallic (ceramic), basically crystalline material of rigorously controlled composition and manufactured with detailed regulation from highly refined and/or characterized raw materials giving precisely specified attributes. (britannica.com)
  • Ceramic engineers are specialized materials engineers who work with ceramics, which are nonmetallic, inorganic materials that are processed at high temperatures. (encyclopedia.com)
  • Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. (elsevier.com)
  • Most ceramic materials, such as alumina and its compounds, are formed from fine powders, yielding a fine grained polycrystalline microstructure that is filled with scattering centers comparable to the wavelength of visible light . (wikipedia.org)
  • Recent nanoscale technology, however, has made possible the production of (poly)crystalline transparent ceramics such as alumina Al 2 O 3 , yttria alumina garnet (YAG), and neodymium-doped Nd:YAG . (wikipedia.org)
  • [11] In 2004, Anatoly Rosenflanz and colleagues at 3M used a "flame-spray" technique to alloy aluminium oxide (or alumina) with rare-earth metal oxides in order to produce high strength glass-ceramics with good optical properties. (wikipedia.org)
  • 2. A method as claimed in claim, 1 , wherein foaming of the ceramic slip is achieved using a ball mill with milling media selected from alumina (Al 2 O 3 ), enstatite (MgSiO 3 ) or zirconia (ZrO 2 ) balls. (freepatentsonline.com)
  • 7. A method as claimed in claim 1, wherein the ceramic particulate comprises one or more of hydroxyapatite, a substituted-hydroxyapatite, a glass, an AW-glass ceramic and/or alumina. (freepatentsonline.com)
  • Ceramic materials commonly used for bearings are Silicon Nitride (Si3N4), Zirconia Oxide (ZrO2), Alumina Oxide (Al2O3) or Silicon Carbide (SiC). (prweb.com)
  • For over 60 years PCU is producing the translucent ceramic parts (polycrystalline alumina) for the Philips HID lamps. (philips.com)
  • At Isis Ceramics, outside Oxford, owner Deborah Sears, a collector of 17th-century English delftware, has resuscitated the art of hand-painted tin-glaze patterns. (travelandleisure.com)
  • Today we admire the translucent gray-green celadon glaze on Korean ceramics of the Goryeo period as one of the great achievements of world potters. (si.edu)
  • When the substrate is a ceramic, the coating is called a glaze. (astm.org)
  • Many ceramic materials , both glassy and crystalline, have found use as optically transparent materials in various forms from bulk solid-state components to high surface area forms such as thin films, coatings, and fibers. (wikipedia.org)
  • While single-crystalline ceramics may be largely defect-free (particularly within the spatial scale of the incident light wave), optical transparency in polycrystalline materials is limited by the amount of light that is scattered by their microstructural features. (wikipedia.org)
  • Many ceramic materials, both glassy and crystalline, have found use as hosts for solid-state lasers and as optical window materials for gas lasers. (wikipedia.org)
  • and many other materials, including the mixed oxide ceramics that can act as superconductors. (encyclopedia.com)
  • Other ceramic materials, including many minerals, have complex and even variable compositions. (encyclopedia.com)
  • Traditional ceramics are made from natural materials such as clay that have been hardened by heating at high temperatures (driving out water and allowing strong chemical bonds to form between the flakes of clay). (encyclopedia.com)
  • When artists make ceramic works of art, they first mold clay, often mixed with other raw materials, into the desired shape. (encyclopedia.com)
  • What are Ceramic Materials? (corning.com)
  • Tough ceramic materials bring solutions to virtually every space. (corning.com)
  • Unlike glass, in which atoms are arranged in a random order, linkages in ceramic materials happen when positive and negative ions bond to form a regular pattern of crystals - which, in turn, can scatter the light to which they are exposed. (corning.com)
  • Halfway between the two materials is glass-ceramics, which start life as a glass and then transform into a nearly completely crystalline, or ceramic, substance. (corning.com)
  • As with glass, materials scientists can manipulate the formulas of ceramics and glass-ceramics to achieve a wide variety of properties. (corning.com)
  • Read featured facts about Ceramic Materials. (corning.com)
  • Ultra-high-temperature ceramics ( UHTCs ) are a class of refractory ceramics that offer excellent stability at temperatures exceeding 2000 °C [1] being investigated as possible thermal protection system (TPS) materials, coatings for materials subjected to high temperatures, and bulk materials for heating elements. (wikipedia.org)
  • Other high-entropy disordered ceramics rapidly followed, stimulating the addition of more components to obtain materials expressing a blend of properties, often highly enhanced. (nature.com)
  • In the space of ceramics, it leads to new materials that, both as bulk and thin films, will play important roles in technology in the decades to come. (nature.com)
  • High-entropy metal diborides: a new class of high-entropy materials and a new type of ultrahigh temperature ceramics. (nature.com)
  • Advanced ceramics , substances and processes used in the development and manufacture of ceramic materials that exhibit special properties. (britannica.com)
  • Through the application of a modern materials science approach, new materials or new combinations of existing materials have been designed that exhibit surprising variations on the properties traditionally ascribed to ceramics. (britannica.com)
  • Developments in advanced ceramic processing continue at a rapid pace, constituting what can be considered a revolution in the kind of materials and properties obtained. (britannica.com)
  • In this article the term advanced ceramics is used in order to distinguish the material from traditional ceramics, a category of industrial ceramics based on raw materials that are fabricated into products with comparatively little alteration from their natural state. (britannica.com)
  • Unlike traditional ceramics, however, naturally occurring raw materials are seldom employed. (britannica.com)
  • Negative TCR, or NTCR, ceramics are materials whose electric resistance decreases as temperatures rise. (britannica.com)
  • Is Apple's move to use new materials like ceramics on new iPhones motivated partly by Google's use of aluminum? (forbes.com)
  • Ceramic engineers develop new ceramic products as well as methods and equipment for processing ceramic materials. (encyclopedia.com)
  • They develop new ceramic materials synthetically or from minerals found in the earth. (encyclopedia.com)
  • They direct the processing of the natural raw minerals and synthetic materials used to make ceramics. (encyclopedia.com)
  • Ceramic engineers who specialize in electrical ceramic materials are called dielectrical engineers. (encyclopedia.com)
  • Ceramics is a materials science, which means that it includes the study of the properties and uses of metals and plastics. (encyclopedia.com)
  • When protecting a surface, it is usually less expensive to use organic coatings rather than other materials such as ceramic coatings. (astm.org)
  • Porous ceramic tubes are used in different filtration applications (from Micro-filtration to Nano-filtration) when temperatures are too high or the media is too aggressive for other porous materials. (philips.com)
  • Ceramics International covers the science of advanced ceramic materials. (elsevier.com)
  • Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. (elsevier.com)
  • Ceramics International is particularly keen to attract papers which deal with fundamental scientific aspects that are relevant to the development of the whole range of advanced ceramics including e.g. phase equilibria and transformations, reactivity, transport processes, thermodynamic and electronic properties, as well as quantum effects in low dimensional materials. (elsevier.com)
  • The IPS metal-ceramic range comprises ceramic materials for single-layer and multiple-layer techniques as well as ceramic materials for the press technique. (ivoclarvivadent.com)
  • In this volume, authors from three major competence centres for microengineering illustrate step by step the process from designing and simulating microcomponents of metallic and ceramic materials to replicating micro-scale components by injection molding. (wiley-vch.de)
  • His research interests focus on metallic and ceramic materials properties and durability under different kinds of stress, component manufacture and behaviour, optimisation of heat treatment methods, and failure analysis. (wiley-vch.de)
  • The primary difference between glass and ceramics, though, centers on the chemical bonds that hold the internal structure of the material together. (corning.com)
  • The present invention provides for amorphous, nanoporous, catalytic metal-containing ceramic material having a surface area in excess of 70 m2 /gm and characterized by a high content of open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said. (google.com)
  • The present invention provides for amorphous, nanoporous, catalytic metal-containing ceramic material having a surface area in excess of 70 m 2 /gm and characterized by a high content of open microporous cell structure wherein the micropores have a mean width of less than 20 Angstroms and wherein said microporous structure comprises a volume of greater than about 0.03 cm 3 /gm of the ceramic. (google.com)
  • Through a systematic investigation of the refractory properties of binary ceramics, they discovered that the early transition metal borides, carbides, and nitrides had surprisingly high thermal conductivity , resistance to oxidation , and reasonable mechanical strength when small grain sizes were used. (wikipedia.org)
  • Hf 0.2 Zr 0.2 Ta 0.2 Nb 0.2 Ti 0.2 )C high-entropy ceramics with low thermal conductivity. (nature.com)
  • And, as ceramics make excellent thermal buffers, the thinnest of ceramic sheets could be used anywhere two temperatures need to be kept from each other. (asme.org)
  • Ceramic is also non-magnetic, non-corrosive and has an extremely low rate of thermal expansion. (prweb.com)
  • Glass ceramics have a structure that consists of many tiny crystalline regions within a noncrystalline matrix. (encyclopedia.com)
  • Most ceramics have a highly crystalline structure, in which a three-dimensional unit, called a unit cell, is repeated throughout the material. (encyclopedia.com)
  • The two main categories of ceramics are traditional and advanced. (encyclopedia.com)
  • Each 3D paint or material is distinguished by its main ingredients, including graphene, metals and alloys, ceramics, and biological powders made from decellularized tissues (scaffolds made from tissues after cellular contents have been removed) and organs. (asme.org)
  • These ceramics are usually spinels based on oxides of iron, cobalt, and manganese that exhibit small polaron conduction. (britannica.com)
  • ATCC makes electronic components, including ceramic multilayer capacitors that store and discharge electrical power in commercial and military equipment, including wireless systems, fiber optics and satellites. (cnn.com)
  • Traditional ceramics include objects made of clay and cements that have been hardened by heating at high temperatures. (encyclopedia.com)
  • Binders such as bone ash are sometimes added to the clay to promote strong bond formation, which makes the ceramic resistant to breakage. (encyclopedia.com)
  • The ceramics process is a simulation of the geological transformation: the clay mixed with water is modeled, dried and then fired at high temperatures (from 900 to 1300 °C). For the artist, Ceramics has a direct relationship with the planet and the human body. (google.com)
  • Through his hands, the artist expresses his thoughts, ideas and emotions, modeling the ceramic body (clay) and creating works that depict a concrete moment of life. (google.com)
  • Depending on the type of clay you use, you may need to use a kiln to make sure your ceramics are safe to use. (wikihow.com)
  • Most ceramic engineers are employed in the stone, clay, and glass industries. (encyclopedia.com)
  • French ceramic artist Claire de LavalleÌe draws on her skills from her former life as a baker to works her clay into brightly-hued organic shapes. (coolhunting.com)
  • This sculpture is formed from thin strips of ceramic clay stacked in rows to resemble a human skull. (tate.org.uk)
  • HSC ceramic bearings are grade 3 silicon nitride (Si3N4) balls, matched with hardened steel races, and low-friction seals and retainers. (google.com)
  • Ceramic bearings balls are typically made from (Si3N4) ceramic silicon nitride and have greater hardness than steel balls resulting in longer ball life. (slideshare.net)
  • These ceramics books include information about glazes and a variety of techniques. (dickblick.com)
  • The route aims to make the European Ceramics heritage more accessible to European citizens, by promoting a dynamic image of this heritage, both physical, with objects used in several sectors (culinary activities, the arts, medicine, architecture, etc.), and intangible, including the know-how and crafts necessary for its production. (coe.int)
  • Christie's European Ceramics & Glass Department showcases a range of styles and makers, from classic Wedgwood designs and exquisite examples of Sèvres porcelain to glass objects by Baccarat and Italian maiolica Renaissance works. (christies.com)
  • Ceramics at UMass Amherst offers a curriculum that respects the history and persistence of pottery while remaining up to date with current methods and technology. (umass.edu)
  • Highlights include more than 100 pieces of Arequipa pottery and a large selection of works by Peter Voulkos, spanning his career from award-winning potter to groundbreaking innovator of expressive, abstract ceramic sculpture. (museumca.org)
  • Find ceramics and pottery books for kids, students, and professionals at Blick. (dickblick.com)
  • 80%) and a more detailed work describing the microstructural effects on compressive strength of unidirectional porous ceramics in a broader porosity range is still lacking. (nature.com)
  • Our objective is to characterize the compressive strength of ice-templated ceramics in a broad porosity range and link their mechanical behavior to the pore architecture. (nature.com)
  • As a result, there are now ceramic products that are as tough and electrically conductive as some metals. (britannica.com)
  • He is Speaker of the Collaborative Research Centre 499 "Design, production and quality assurance of molded microparts constructed of metals and ceramics" and has been a Senator of the Deutsche Forschungsgemeinschaft (DFG) since 2003. (wiley-vch.de)
  • Offering artefacts dating to the Neolithic era through to Republic Period porcelain, Christie's sales of Chinese ceramics and works of art showcase centuries of Chinese history. (christies.com)
  • Intermediate students may take one of several rotating classes including Figure Sculpture, Ceramic Tile, or Mold Making and Casting. (umass.edu)
  • Finally, advanced ceramics tend to exhibit unique or superior functional attributes that can be "precisely specified" by careful processing and quality control. (britannica.com)
  • MassArt Ceramics educates students in the field of professional ceramics, including functional, sculptural, educational, and design work complete for today's audience. (massart.edu)
  • The macroporous ceramic foam is suitable for use in biomedical applications such as synthetic bones, tissue engineering scaffolds or drug delivery devices. (freepatentsonline.com)
  • However, most of the techniques conventionally used to produce macroporous ceramics with aligned porosity do not offer this level of flexibility. (nature.com)
  • As a result ceramic bearings can be used in silicon wafer production where high loads and high temperatures are exhibited during manufacturing. (prweb.com)
  • 3. The ceramic susceptor set forth in claim 2 , wherein said sintered ceramic body is made of at least one substance type selected from aluminum nitride, silicon nitride, silicon carbide, and aluminum oxide. (google.com)
  • Ceramics endowed with heat-resistant, corrosion resistant and insulative properties, such as aluminum nitride and silicon nitride, have been employed to date as wafer retaining members of this sort. (google.com)
  • HSC Ceramics, founded in 2003, are expert manufacturers of ceramic bicycle bearings that are of exceptional high quality and are very hard wearing. (google.com)
  • Ceramic bearings allow you to cycle faster and for longer, with reduced effort. (google.com)
  • Ceramic bearings are typically constructed with a ferrous inner and outer ring or race with ceramic balls in the place of steel. (slideshare.net)
  • Ceramic bearings offer many advantages over all steel bearings, such as higher speed and acceleration capability, increased stiffness, lower friction and more. (slideshare.net)
  • Ceramic bearings are available in all standard industry configurations such as, angular bearings, thrust bearing, pillow block bearing, needle bearings, and roller bearings. (slideshare.net)
  • Ceramic bearings balls are rated at higher spin rates than steel bearing balls. (slideshare.net)
  • This reduces centrifugal loading and skidding, so hybrid ceramic bearings can operate 20% to 40% faster than conventional bearings. (slideshare.net)
  • Boca Bearings is proud to introduce their newly expanded line of Full Ceramic and Ceramic Hybrid bearings suited for the semiconductor manufacturing industry. (prweb.com)
  • Deep groove bearings, thrust bearings, angular contact bearings and self-aligning bearings are just some of the styles available in Full Ceramic and Ceramic Hybrid versions. (prweb.com)
  • Ceramic Hybrid bearings consist of steel races with ceramic balls. (prweb.com)
  • Full Ceramic bearings have ceramic races and ceramic balls. (prweb.com)
  • Boca Bearings has one of the largest inventories of ceramic bearings in the world but can also have custom bearings built to the specifications of the customer. (prweb.com)
  • Like their traditional counterparts, advanced ceramics are often made by mixing and calcining (firing together) precursor powders. (britannica.com)
  • In addition, liquid-phase sintering, a method of densifying powders that is common in traditional ceramic processing, is seldom employed. (britannica.com)
  • Ceramists therefore take care to produce active ceramic powders with small grain size, usually in the submicrometre range-i.e., smaller than one micrometre, or one-millionth of a metre (0.000039 inch). (britannica.com)
  • Other ceramics have highly conductive properties and have formed a new and growing category called electroceramics. (corning.com)
  • The cellular construction of Ceramic Skull is typical of his sculptural work in the early 1970s. (tate.org.uk)
  • CERAMIC COATINGS ARE AN ALTERNATIVE TO organic or polymer based coatings for selected surface coating applications. (astm.org)
  • Though more expensive, for some applications ceramic coatings may be a more suitable form of protection. (astm.org)
  • Vitreous (glassy) ceramic coatings are chosen for application over a substrate for one or more of several reasons [1]. (astm.org)
  • The chemical durability of ceramic coatings in service substantially exceeds that of organic paints [2]. (astm.org)
  • This outstanding durability, combined with a very smooth surface, renders many ceramic coatings suitable for applications requiring the highest standards of cleanability, such as ware that comes in contact with food and drink. (astm.org)
  • Although different types of ceramics can have very different properties, in general ceramics are corrosion-resistant and hard, but brittle. (encyclopedia.com)
  • Locally manufactured ceramic filters have traditionally been used throughout the world to treat household water. (cdc.gov)
  • Among the world's top five producers of ceramic tile, RAK has been pulling out of businesses such as real estate, construction, warehousing and leasing to free up resources for growth in its core business. (reuters.com)
  • In addition, most ceramics are opaque to visible light, and glasses tend to be translucent. (encyclopedia.com)
  • One could argue that the premium price could signal that the iPhone made of zirconia ceramic would be more costly based on this example. (forbes.com)
  • However, in my analysis, the production cost of high-yield zirconia ceramic in sufficient quantities to produce a unibody in the form factor of the current iPhone 7 would actually be less costly than the current manufacturing, milling, and CNC machining of the unibody in aluminum for the iPhone 7, in high production. (forbes.com)
  • The reasoning is very simple: the benefits of zirconia ceramic are especially useful for any modern computer device. (forbes.com)
  • Why is Apple moving to zirconia ceramics? (forbes.com)
  • Favourite pot from Loren Zeller's fantastic talk on Pillement's chinoiserie designs on C18th-19th ceramics. (twitter.com)
  • We encourage you to explore more collections in the European Furniture, Silver, & Ceramics sale closing on April 19th. (sothebys.com)
  • The collection of over 800 objects covers the history of California ceramics from the late 19th century to present day. (museumca.org)
  • Our world is built on ceramics and glass, from colorful windows decorating our finest architecture to parts for engines and bullet-resistant windshields. (nist.gov)
  • Accordingly, it seems very important to characterize these ceramics through a.c. conductivity measurements, and the corresponding results are interpreted in this paper. (hindawi.com)
  • The terms engineering ceramics and fine ceramics are used in the United Kingdom and Japan, respectively. (britannica.com)
  • Transparent ceramics have recently acquired a high degree of interest and notoriety. (wikipedia.org)
  • This phenomenon usually results in an opaque material, rather than transparent, although there are examples of transparent ceramics. (corning.com)
  • and (c) heating the foamed ceramic slip at a temperature sufficient to substantially burn out the organic binder. (freepatentsonline.com)
  • These reasons for selecting a ceramic coating in preference to an organic paint include rendering the surface more chemically inert, impervious to liquids and gases, more readily cleanable, and more resistant to service temperature, abrasion, and scratching. (astm.org)
  • Ceramic engineers work with physicists developing superconductors. (encyclopedia.com)
  • White ceramics are made from rarer (and thus more expensive) white clays, primarily kaolin. (encyclopedia.com)
  • The oldest known ceramics made by humans are figurines found in the former Czechoslovakia that are thought to date from around 27,000 b.c.e. (encyclopedia.com)
  • Then the polymer on the interior is etched away, leaving nothing but a ceramic lattice, made of tubes a micron in diameter. (asme.org)
  • Philips Ceramics Uden develops custom made oven furniture. (philips.com)
  • Numerous other locally-made and commercial ceramic filters are widely available in developed and developing countries. (cdc.gov)
  • Ceramics are not futile things", said Paul Gauguin who, having made his first foray into ceramics around 1887, predicted that he would one day be recognised for having raised the practice to an art form. (visitmonaco.com)
  • In Spielberg and Streitberg (both are villages in Brachttal) there are ceramic museums with ceramic art made by Waechtersbach ceramics. (wikipedia.org)
  • 4. The ceramic susceptor set forth in claim 3 , wherein said resistive heating element is made of at least one metal type selected from W, Mo, Ag, Pt, Pd, Ni and Cr. (google.com)
  • A wafer retaining member made of ceramic into which the foregoing heater is built then has been manufactured according to a method that amounts to sintering aluminum nitride and building-in a molybdenum coil, by training a molybdenum coil into a groove formed in for example a disk-shaped aluminum nitride plate, sandwiching it with another such aluminum nitride plate, and hot-press sintering the sandwich. (google.com)
  • Ceramic masks can be beautiful additions to any home, and if they are made light enough, can even be worn for special costume events. (ehow.com)
  • This structure gives them some properties of ceramics and some of glasses. (encyclopedia.com)
  • The natural insulating properties of ceramic material eliminates this type of damage. (slideshare.net)
  • Because of the properties of ceramics, a hybrid bearing's service life can be up to 10 times that of a standard steel bearing, reducing the need for maintenance on your machine as well as the costly interruptions in production. (slideshare.net)
  • Ceramic susceptor whose wafer-retaining face has superior isothermal properties, and that is suited to utilization in apparatuses for manufacturing semiconductors and in liquid-crystal manufacturing apparatuses. (google.com)
  • Ceramic engineers may also explore new uses for ceramic products, such as using ceramics in miniaturized circuits and human bone and teeth replacements. (encyclopedia.com)
  • Explore the possibilities and perspectives of ceramics and glass. (rca.ac.uk)
  • An artist, researcher and educator, Steve has lead major restoration and research programmes working with the UK ceramics industry to explore the potential ceramics. (rca.ac.uk)
  • 6. The composition of claim 1 which contains from about 75 to about 99 parts by weight of said ceramic precursor and from about 1 to about 35 parts by weight of said organometallic compound. (google.com)
  • The traveller can appreciate the art of living in the destinations located along the European Route of Ceramics, by choosing a suitable getaway, whether it be urban or surrounded by nature, romantic or family-friendly, heritage-centred or gourmet-oriented. (coe.int)
  • Most ceramics are also good insulators and can withstand high temperatures. (encyclopedia.com)
  • Some ceramics are virtually impervious to electricity and heat, making them ideal for applications ranging from insulators in household wiring to re-entry heat shields for spacecraft. (corning.com)
  • Our NISTers are incorporating the findings into the next edition of Fractography of Ceramics and Glasses , a widely used practice guide for the ceramic and glass industry. (nist.gov)
  • Currently, the most widely implemented ceramic filter is the Potters for Peace External design. (cdc.gov)
  • Ceramics tend to have high, well-defined melting points, while glasses tend to soften over a range of temperatures before becoming liquids. (encyclopedia.com)
  • In general, glass ceramics expand less when heated than most glasses, making them useful in windows, for wood stoves, or as radiant glass-ceramic cooktop surfaces. (encyclopedia.com)
  • Advanced ceramics represent an "advancement" over this traditional definition. (britannica.com)
  • The chemical bonds in ceramics can be covalent, ionic, or polar covalent, depending on the chemical composition of the ceramic. (encyclopedia.com)
  • PCU has done projects developing a wide range of ceramics based solutions of which you can see some examples below. (philips.com)
  • Held throughout the year in London, New York, Paris and Hong Kong, they attract a wide audience of collectors and connoisseurs vying for pieces as diverse as archaic bronzes, important lacquer and ceramics from a wide range of dynasties. (christies.com)
  • Chickenart Ceramics has one of the Largest selections of British Farm Livestock available, for decorating on an extensive range of products. (ebay.co.uk)
  • Ceramic filtration is most appropriate in areas where there is capacity for quality ceramics filter production, a distribution network for replacement of broken parts, and user training on how to correctly maintain and use the filter. (cdc.gov)
  • Ceramic filtration programs have been implemented in over 20 countries. (cdc.gov)
  • One of the largest ceramic filtration programs is in Cambodia, where two NGOs both worked with PFP to establish filter factories. (cdc.gov)