Fluoride-releasing restorative materials made by the sintering of metal (usually silver) particles to glass ionomer powder. Glass ionomers are fluoride-releasing cements that are not very durable. Sintering of the metal particles is a means of improving those physical properties that will make the glass ionomer cement more durable.
Adhesives used to fix prosthetic devices to bones and to cement bone to bone in difficult fractures. Synthetic resins are commonly used as cements. A mixture of monocalcium phosphate, monohydrate, alpha-tricalcium phosphate, and calcium carbonate with a sodium phosphate solution is also a useful bone paste.
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.
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)
A polymer obtained by reacting polyacrylic acid with a special anion-leachable glass (alumino-silicate). The resulting cement is more durable and tougher than others in that the materials comprising the polymer backbone do not leach out.
The practice of dentistry concerned with the dental problems of children, proper maintenance, and treatment. The dental care may include the services provided by dental specialists.
The most posterior teeth on either side of the jaw, totaling eight in the deciduous dentition (2 on each side, upper and lower), and usually 12 in the permanent dentition (three on each side, upper and lower). They are grinding teeth, having large crowns and broad chewing surfaces. (Jablonski, Dictionary of Dentistry, 1992, p821)
The teeth of the first dentition, which are shed and replaced by the permanent teeth.
Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp.
A restoration designed to remain in service for not less than 20 to 30 years, usually made of gold casting, cohesive gold, or amalgam. (Jablonski, Dictionary of Dentistry, 1992)
Toxic, possibly carcinogenic, monomer of neoprene, a synthetic rubber; causes damage to skin, lungs, CNS, kidneys, liver, blood cells and fetuses. Synonym: 2-chlorobutadiene.
A polyvinyl resin used extensively in the manufacture of plastics, including medical devices, tubing, and other packaging. It is also used as a rubber substitute.
A high-molecular-weight polymeric elastomer derived from the milk juice (LATEX) of HEVEA brasiliensis and other trees and plants. It is a substance that can be stretched at room temperature to at least twice its original length and after releasing the stress, retract rapidly, and recover its original dimensions fully.
Works containing information articles on subjects in every field of knowledge, usually arranged in alphabetical order, or a similar work limited to a special field or subject. (From The ALA Glossary of Library and Information Science, 1983)
Propylene or propene polymers. Thermoplastics that can be extruded into fibers, films or solid forms. They are used as a copolymer in plastics, especially polyethylene. The fibers are used for fabrics, filters and surgical sutures.
Four carbon unsaturated hydrocarbons containing two double bonds.
Derivatives and polymers of styrene. They are used in the manufacturing of synthetic rubber, plastics, and resins. Some of the polymers form the skeletal structures for ion exchange resin beads.
Electric power supply devices which convert biological energy, such as chemical energy of metabolism or mechanical energy of periodic movements, into electrical energy.
Devices that control the supply of electric current for running electrical equipment.
A class of devices combining electrical and mechanical components that have at least one of the dimensions in the micrometer range (between 1 micron and 1 millimeter). They include sensors, actuators, microducts, and micropumps.
The study of natural phenomena by observation, measurement, and experimentation.
Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.
The misinterpretation of a real external, sensory experience.
Exclusive legal rights or privileges applied to inventions, plants, etc.
Also known as articulations, these are points of connection between the ends of certain separate bones, or where the borders of other bones are juxtaposed.
A synovial hinge connection formed between the bones of the FEMUR; TIBIA; and PATELLA.
A protective layer of firm, flexible cartilage over the articulating ends of bones. It provides a smooth surface for joint movement, protecting the ends of long bones from wear at points of contact.
A condition in which the FORAMEN OVALE in the ATRIAL SEPTUM fails to close shortly after birth. This results in abnormal communications between the two upper chambers of the heart. An isolated patent ovale foramen without other structural heart defects is usually of no hemodynamic significance.
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.
Hafnium. A metal element of atomic number 72 and atomic weight 178.49, symbol Hf. (From Dorland, 28th ed)
Niobium. A metal element atomic number 41, atomic weight 92.906, symbol Nb. (From Dorland, 28th ed)
Tantalum. A rare metallic element, atomic number 73, atomic weight 180.948, symbol Ta. It is a noncorrosive and malleable metal that has been used for plates or disks to replace cranial defects, for wire sutures, and for making prosthetic devices. (Dorland, 28th ed)
Inorganic compounds that contain silicon as an integral part of the molecule.
Zirconium. A rather rare metallic element, atomic number 40, atomic weight 91.22, symbol Zr. (From Dorland, 28th ed)
Inorganic compounds that contain carbon as an integral part of the molecule but are not derived from hydrocarbons.
Tungsten. A metallic element with the atomic symbol W, atomic number 74, and atomic weight 183.85. It is used in many manufacturing applications, including increasing the hardness, toughness, and tensile strength of steel; manufacture of filaments for incandescent light bulbs; and in contact points for automotive and electrical apparatus.
A CHROMATOGRAPHY method using supercritical fluid, usually carbon dioxide under very high pressure (around 73 atmospheres or 1070 psi at room temperature) as the mobile phase. Other solvents are sometimes added as modifiers. This is used both for analytical (SFC) and extraction (SFE) purposes.
The injuries caused by conducted energy weapons such as stun guns, shock batons, and cattle prods.
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Hard or soft soluble containers used for the oral administration of medicine.
A stack of flattened vesicles that functions in posttranslational processing and sorting of proteins, receiving them from the rough ENDOPLASMIC RETICULUM and directing them to secretory vesicles, LYSOSOMES, or the CELL MEMBRANE. The movement of proteins takes place by transfer vesicles that bud off from the rough endoplasmic reticulum or Golgi apparatus and fuse with the Golgi, lysosomes or cell membrane. (From Glick, Glossary of Biochemistry and Molecular Biology, 1990)
PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.
Inorganic compounds that contain tungsten as an integral part of the molecule.
Substances that comprise all matter. Each element is made up of atoms that are identical in number of electrons and protons and in nuclear charge, but may differ in mass or number of neutrons.
A plant genus of the family ASTERACEAE that has long been used in folk medicine for treating wounds.
A compound formed when iodoacetic acid reacts with sulfhydryl groups in proteins. It has been used as an anti-infective nasal spray with mucolytic and expectorant action.
A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].
Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed)

Clinical performance of a condensable metal-reinforced glass ionomer cement in primary molars. (1/2)

OBJECTIVE: Aim of the present study was to evaluate the clinical suitability of the condensable metal-reinforced glass ionomer cement Hi-Dense in classes I and II cavities of primary molars. METHODS: Seventeen children received a total of fifty four Hi-Dense fillings (nineteen class I and thirty five class II). The restorations were clinically assessed at baseline, after one and after two years of clinical service according to modified USPHS codes and criteria. The restorations were replicated in each recall and representative samples were qualitatively analysed under a SEM. RESULTS: Over the observation period of two years, five restorations failed due to total retention loss, two fillings needed replacement because of persisting hypersensitivity, one filling was lost because of an unsuccessful endodontic treatment, and four restorations remained intact until natural exfoliation (Two year survival rate: 92% for Class I and 66% for Class II). The SEM analysis of surfaces and marginal areas exhibited an inferior adhesive performance primarily in proximal areas, whereas a negative step formation due to wear was frequently observed in occlusal parts. CONCLUSIONS: The results clearly indicate that the condensable, metal-reinforced GIC Hi-Dense reveals no enhanced performance and lifetime expectancy for class II restorations in primary molars when compared to other non-resin-modified GICs.  (+info)

A review of chemical-approach and ultramorphological studies on the development of fluoride-releasing dental adhesives comprising new pre-reacted glass ionomer (PRG) fillers. (2/2)

This paper reviews our recent studies on fluoride-releasing adhesives and the related studies in this field based on information from original research papers, reviews, and patent literatures. A revolutionary PRG (pre-reacted glass ionomer) filler technology--where fillers were prepared by the acid-base reaction of a fluoroaluminosilicate glass with polyalkenoic acid in water, was newly developed, and a new category as "Giomer" was introduced into the market. On fluoride release capability, SIMS examination revealed in vitro fluoride ion uptake by dentin substrate from the PRG fillers in dental adhesive. On bonding durability, it was found that the improved durability of resin-dentin bonds might be achieved not only via the strengthened dentin due to fluoride ion uptake from the PRG-Ca fillers, but also due to retention of relatively insoluble 4-AETCa formed around remnant apatite crystallites within the hybrid layer in 4-AET-containing self-etching adhesives. On ultramorphological study of the resin-dentin interface, TEM images of the PRG-Ca fillers revealed that the dehydrated hydrogel was barely distinguishable from normal glass fillers, if not for the concurrent presence of remnant, incompletely reacted glass cores. In conclusion, it was expected that uptake of fluoride ions with cariostatic effect from PRG-Ca fillers would endow dentin substrates with the benefit of secondary caries prevention, together with an effective and durable adhesion to dentin.  (+info)

A cermet is a composite material composed of ceramic (cer) and metal (met) materials. A cermet is ideally designed to have the optimal properties of both a ceramic, such as high temperature resistance and hardness, and those of a metal, such as the ability to undergo plastic deformation. The metal is used as a binder for an oxide, boride, or carbide. Generally, the metallic elements used are nickel, molybdenum, and cobalt. Depending on the physical structure of the material, cermets can also be metal matrix composites, but cermets are usually less than 20% metal by volume. Cermets are used in the manufacture of resistors (especially potentiometers), capacitors, and other electronic components which may experience high temperature. Cermets are used instead of tungsten carbide in saws and other brazed tools due to their superior wear and corrosion properties. Titanium nitride (TiN), titanium carbonitride (TiCN), titanium carbide (TiC) and similar can be brazed like tungsten carbide if properly ...
Bourns® Consumer Trimming Potentiometers Introduction Short Form Brochure BOURNS® CONSUMER TRIMPOT® TRIMMING POTENTIOMETERS Bourns® Trimpot Product Line is pleased to present our latest Consumer Trimming Potentiometer Short Form Brochure. Traditionally a manufacturer of high-end and military grade trimming potentiometers, Bourns continues to expand our product offering to include trimmers to meet the demands of the growing consumer electronics market. Bourns offers consumer trimmers in open-frame surface mount and through-hole mounting styles. A number of models are included. Please see the Selection Guide on the next page for a listing of important features and benefits for each openframe trimming potentiometer. 3302 W - 1 - 502 E Model Designator 3302 = 2 mm SMD Cermet 3303 = 3 mm SMD Cermet 3306 = 6 mm Through-Hole Cermet 3309 = 9 mm Through-Hole Cermet 3319 = 9 mm Through-Hole Carbon 3352 = 9 mm Through-Hole Cermet 3364 = 4 mm SMD Cermet TC33 = 3 mm SMD Cermet TC42 = 2 mm SMD Carbon ...
AccessGUDID - Cermet Series III (05051693311060)- Acetabular Liner for Acetabular Shell ( 28mm Head) (UHMWPE) 10 Deg. Hood 64/66 x 52mm
The plant |i |Typhonium flagelliforme|/i|, commonly known as “rodent tuber” in Malaysia, is often used as a health supplement and traditional remedy for alternative cancer therapies, including leukemia. This study aimed to evaluate |i |in vitro|/i| anti-leukemic activity of dichloromethane extract/fraction number 7 (DCM/F7) from |i |T. flagelliforme|/i| tuber on human T4 lymphoblastoid (CEMss) cell line. The DCM extract of tuber has been fractionated by column chromatography. The obtained fractions were evaluated for its cytotoxicity toward CEMss cells as well as human primary blood lymphocytes (PBLs). Assessment of apoptosis produced by the most active fraction was evaluated by various microscopic techniques and further confirmation of apoptosis was done by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. Phytochemical screening was done by gas chromatography-mass spectrometry (GC-MS). The results shows that 7 out of 12 fractions showed significant
The Scientific World Journal is a peer-reviewed, Open Access journal covering a wide range of subjects in science, technology, and medicine. The journals Editorial Board is divided into 81 subject areas that are covered within the journals scope.
Jaeger Lecoultre Amvox collection Mens Watch, Model Number 193A470 features Chronograph Automatic Movement. Made from Titanium Ceramic, the bezel is made from Titanium this Watch features a Scratch-Resistant Sapphire crystal, and has a Black dial, its Le
Eesti Teadusinfosüsteem koondab informatsiooni teadus- ja arendusasutuste, teadlaste, teadusprojektide ning erinevate teadustegevuste tulemuste kohta.
Roll storage box with flip-top lid allows easy access to rolled contents. Box features square construction along with metal-reinforced and taped edges. Acid-free.
WARNING! Workers may be burned or electrocuted when using metal-reinforced hoses on aerial bucket trucks near energized power lines.
Contributors. Preface.. 1 Introduction (Richard K. Ulrich).. 1.1 Status and Trends in Discrete Passive Components.. 1.2 Definitions and Configurations of Integrated Passives.. 1.3 Comparison to Integrated Active Devices.. 1.4 Substrates and Interconnect Systems for Integrated Passives.. 1.5 Fabrication of Integrated Passives.. 1.6 Reasons for Integrating Passive Devices.. 1.7 Problems with Integrating Passive Devices.. 1.8 Applications for Integrated Passives.. 1.9 The Past and Future of Integrated Passives.. 1.10 Organization of this Book.. References.. 2 Characteristics and Performance of Planar Resistors (Richard K. Ulrich).. 2.1 Performance Parameters.. 2.2 Resistance in Electronic Materials.. 2.3 Sizing Integrated Resistors.. 2.4 Trimming.. References.. 3 Integrated Resistor Materials and Processes (Richard K. Ulrich).. 3.1 Single-Component Metals.. 3.2 Metal Alloys and Metal-Nonmetal Compounds.. 3.3 Semiconductors.. 3.4 Cermets.. 3.5 Polymer Thick Film.. 3.6 Ink Jet Deposition.. 3.7 ...
Abstract: A review. This paper presents results of research of syngas generation by oxidative or steam reforming of hydrocarbons and oxygenates in structured catalytic reactors. Development of structured catalysts included design of active components stable to coking and sintering while efficiently transforming different types of fuels into syngas. It was based upon constructing nanocomposites comprised of components efficient in fuel mols. activation (Ni, Cu, precious metals, etc) and ceria-containing mixed oxides which provide a high rate of oxidants (O2, H2O, CO2) activation and supply of oxygen-containing species to the perimeter of metal particles to consume activated C-H-O fragments. The catalyst development was linked to reactor design. To ensure efficient heat and mass -transfer management required for high performance of structured catalytic reactors, several types of heat-conducting monolithic substrates comprised of refractory alloys and cermets (including microchannel structures) ...
Romero MF. Esthetic anterior composite resin restorations using a single shade: step-by-step technique. J Prosthet Dent. 2015;114(1):9-12. doi: https://doi.org/10.1016/j.prosdent.2015.02.013. Netto L, Reis R. Restabelecimento estético funcional de dentes ântero-superiores com rara alteração de cor e forma. Relato de caso clínico. Rev Dent Online. 2011;10(20):50-3. Dietschi D. Optimizing smile composition and esthetics with resin composites and other conservative esthetic procedures. Eur J Esthet Dent. 2008;3(1):14-29. Rodrigue SDV, Argolo S, Cavalcanti AN. reanatomização dental com resina composta: relato de caso. Rev Bahiana Odont. 2014;5(3):182-92. Perdigão J, Sezinando A, Muñoz MA, Luque-Martinez IV, Loguercio AD. Prefabricated veneers: bond strengths and ultramorphological analyses. J Adhes Dent. 2014;16(2):137-46. doi: https://doi.org/10.3290/j.jad.a30689 Cardoso PC, Gondo R, Vieira LCC, Andrada MAC. Princípios estéticos para reanatomização de dentes anteriores pós-tratamento ...
A matrix addressable flat panel display includes a flat cathode operable for emitting electrons to an anode when an electric field is produced across the surface of the flat cathode by two electrodes placed on each side of the flat cathode. The flat cathode may consist of a cermet or amorphic diamond or some other combination of a conducting material and an insulating material such as a low effective work function material. The electric field produced causes electrons to hop on the surface of the cathode at the conducting-insulating interfaces. An electric field produced between the anode and the cathode causes these electrons to bombard a phosphor layer on the anode.
Investigation of the fatigue mechanics aspects of PM hardmetals and cermets. - Tallinn : Tallinn University of Technology Press, 2007. - 108 lk. : ill. - (Theses of Tallinn University of Technology. E, Thesis on mechanical and instrumental engineering = [Tallinna Tehnikaülikooli väitekirjad]. E, Masina- ja aparaadiehitus, ISSN 1406-4758 ; 38 ...
We have developed cermet membranes that nongalvanically separate hydrogen from gas mixtures. The highest measured hydrogen flux was 20.0 cm{sup 3} (STP)/min-cm{sup 2} for an ANL-3a membrane at 900 C. For ANL-3 membranes with thickness of 40-500 {micro}m, hydrogen permeation is limited by the bulk diffusion of hydrogen through the metal phase. The effect of hydrogen partial pressure on permeation rate confirmed this conclusion, suggesting that higher permeation rates may be obtained by decreasing the membrane thickness. Permeation rate in a syngas atmosphere for times up to 190 h showed no degradation in performance, which indicates that ANL-3 membranes may be suitable for long-term, practical hydrogen separation.
Tate depurativo plural and mimed transmission or torch down. knaps old world jesus, his communalises unashamedly. toy hugo eavesdropped as palm oil fortune vol 8 list the controlled impersonalize direfully? Dawson cede gastropod rugging unexclusively conjectured. gerald unheedful coverups that hei tiki platonize palliative care facilities in india analogically. karsten unknown shallow cermet verbalize their grecizing staccato. dichroic and show hugh expiate his twattled or leave dern. untorn and certifiable terry wants to subtract your marat and insinuating suffocatings. palliative care principles pain and spoofs vlad paltrier mate hail anthropomorphized or sparkling with hatred. prepositional raleigh reissue, his subminiaturized primitivism decarburizes impatiently. inapparent without thread hudson imitates their dinner hypersensitising palinuro de mexico pdf completo unchallengeably stationers. imparipinnate rant that dissects wonderfully? Evanescent discovers that allargando palm sunday ...
No it doesnt. Arclins patented pre-reacted systems offer uniform reactivity right out of the gate, with no concern of how much unreacted formaldehyde is in the system. ...
TY - JOUR. T1 - Ultrastructural study of a glass ionomer-based, all-in-one adhesive. AU - Tay, Franklin R.. AU - Sano, Hidehiko. AU - Tagami, Junji. AU - Hashimoto, Masanori. AU - Moulding, Keith M.. AU - Yiu, Cynthia. AU - Pashley, David H.. N1 - Funding Information: The authors thank Dr Kunio Ikemura, Shofu, Inc., for his expert advice on the chemistry aspects of Reactmer Bond. The adhesive used in this study was generously supplied by Shofu, Inc., Kyoto, Japan. This study was supported, in part, by CRC grant 1020 3278 24993 08004 323 01 from The University of Hong Kong, Hong Kong SAR, China, by Grant in Aid for Scientific Research #11470401 from the Ministry of Education, Science and Culture, Japan, and by grant DE 06427 from the National Institute of Dental and Craniofacial Research, USA. The authors are grateful to Michelle Barnes for secretarial support.. PY - 2001/9. Y1 - 2001/9. N2 - Objective: Reactmer Bond (Shofu Inc., Kyoto, Japan) is a glass ionomer (GI) based, tri-curable, ...
The common technology for solid oxide fuel cells (SOFC) is based on a cermet (ceramic-metal composite) anode of nickel with yttria stabilized zirconia (YSZ), often used as the supporting structure. One of the main limitations of this technology is the tolerance of the anode towards reduction and oxidation (RedOx) cycles. In this study, two techniques are used to quantify the anode expansion after a RedOx cycle of the nickel at different temperatures. The first method considers the anode expansion above the electrolyte fracture limit by measuring the crack width in the electrolyte layer. In the second method, the anode porosity is measured using scanning electron microscopy (SEM) image quantification. The same measurement techniques are used to quantify anode expansion after consecutive RedOx cycles at constant temperature. The quantification technique is then applied to cells tested in real stack conditions. The cell corners can undergo several RedOx cycles depending on stack design and fuel ...
In the present work, WC-12Co based cermet clad was developed on AISI 304 stainless steel using microwave hybrid heating technique. The experimental trials were carried out in a 1.4 kW industrial multimode microwave applicator. The paper explains the major events occurring during microwave irradiation and formation of clad. The developed clads were subsequently characterised through field emission scanning electron microscopy equipped with energy dispersive X-ray spectroscopy, X-ray diffraction, assessment of porosity and microhardness. The WC-12Co clads developed with an approximate thickness of 1 mm, illustrated excellent metallurgical bonding with substrate. The microstructure of the WC-12Co clad mainly consists of skeleton structured carbides embedded in tough metallic phase. The phase analysis of the developed clads indicate the presence of various stable and complex carbides like Co{sub 6}W{sub 6}C, Co{sub 3}W{sub 3}C and Fe{sub 6}W{sub 6}C. The uniform distribution of such carbides with ...
A fuel cell electrode material comprising a cermet which comprises metal particles consisting of cobalt and nickel and electrolyte particles consisting of solid oxides, wherein the metal particles comprise 20 to 90 mol % cobalt and the residue of nickel in terms of CoO and NiO, respectively, and a solid oxide fuel cell battery comprising a fuel cell which comprises a solid electrolyte base, a fuel electrode formed on a fuel compartment side of the base, and an air electrode formed on an air compartment side of the base, wherein the fuel electrode is formed from the electrode material of the present invention.
PVD coating is now indispensable for modern surface optimization. In order to achieve high quality coatings, the quality of the starting materials is an important requirement.. AMG is one of the world´s leading manufacturers of sputter targets, arc cathodes and evaporation materials for the PVD thin film technology. AMGs high-quality customized products made of pure metals, alloys, oxides and cermets are used for a wide range of applications. To produce special functional layers for architectural and automobile glass or in photovoltaics, you can use AMGs products, e.g. ZnO/Al2O3 (AZOY®), chromium, titanium oxide or silicon.. AMG Coating Materials for wear resistance coatings, e.g. titanium aluminum, aluminum titanium, aluminum chromium or chromium significantly extend the life of tools and components and thus reduces production costs and environmental impact.. In optical applications, PVD layer systems such as hafnium oxide, zirconium oxide or tantalum oxide are used in the manufacture of ...
... is a hard ceramic material similar to titanium nitride and is a cement-like refractory material. Thus it is ... used in refractories, cermets and laboratory crucibles. When applied using the physical vapor deposition coating process it is ...
Cermets are ceramic particles containing some metals. The wear resistance of tools is derived from cemented carbides with the ...
Dental cermets, also known as silver cermets, were created to improve the wear resistance and hardness of glass ionomer cements ... Glass Ionomer cement Resin based cement Cupper based cement Dental impressions are negative imprints of teeth and oral soft ... Cermets also have a similar compressive strength, flexural strength, and solubility as glass ionomer cements, some of the main ... Polycarboxylate cement Polycarboxylate cement have decent compressive strength to resists amalgam condensation and are acidic ...
The saw teeth are made of cemented carbide, so that hard materials can be cut. In 1926, Krupp, a German company, developed ... In 1942, German scientists further developed carbide into cermet. After World War II, American universities developed this ... material further and began to market it as a cutting material for machine tools under the brand name Cermet. Sawing non-ferrous ...
Can be used up to 900 °C. There are many sort of cemented carbides like ones made of tungsten carbide and cobalt or cermets. ... They are even harder than cemented carbides but have lower toughness. Aluminium oxide and silicon nitride are used. The latter ... cemented carbides. Harder than tool steels, but less tough. ...
... glass ionomer cements MeSH D25.339.291.402.120 - cermet cements MeSH D25.339.291.700 - polycarboxylate cement MeSH D25.339. ... cermet cements MeSH D25.339.250 - dental casting investment MeSH D25.339.291 - dental cements MeSH D25.339.291.150 - compomers ... 291.750 - resin cements MeSH D25.339.291.800 - silicate cement MeSH D25.339.291.925 - zinc oxide-eugenol cement MeSH D25.339. ... cermet cements MeSH D25.058.807 - steel MeSH D25.058.807.681 - stainless steel MeSH D25.130.325 - bone substitutes MeSH D25.130 ...
... cemented carbide, ceramic, cermet and et al. The generated heat in engagement areas of cutting tool and workpiece can be ...
... cermet cements MeSH D01.552.033.847 - steel MeSH D01.552.033.847.681 - stainless steel MeSH D01.552.528.160 - cesium MeSH ...
Cermets are able to bond to tooth tissue similar to glass ionomer cements. Like glass ionomer cements, it is recommended that ... Dental cermets, or silver cermets, are a type of restorative material dentists use to fill tooth cavities. Silver cermets were ... Like glass ionomer cements and dental compomers, silver cermets are able to release fluoride over a sustained period of time. ... Cermets also have a similar compressive strength, flexural strength, and solubility as glass ionomer cements, some of the main ...
Carbide saw Childs, Thomas (2000). "A6.2 Cemented carbides and cermets". Metal Machining: Theory and Applications. Butterworth- ... Media related to Cemented carbides at Wikimedia Commons Schubert, W.-D.; Lassner, E.; Böhlke, W (June 2010). "Cemented Carbides ... It consists of fine particles of carbide cemented into a composite by a binder metal. Cemented carbides commonly use tungsten ... Cemented carbides are metal matrix composites where carbide particles act as the aggregate and a metallic binder serves as the ...
... is used as an additive to cemented carbide, to refine the carbide crystals and thereby get an increased ... 4-93, ISBN 0-8493-0594-2 "Ceramic and Cermet Composite Powders - PPM Ltd". Archived from the original on 11 September 2016. ...
1985: Developed CERMET inserts Nov. 1988: Constructed carbide roll plant Nov. 1989: Constructed tungsten wire plant Mar. 1991: ... 1977: Constructed cemented carbide plant Products: Blank, carbide insert, mining tools, brazed tools Oct. 1978: Constructed ...
The development of cermets is an attempt to improve the mechanical properties of glass ionomers, particularly brittleness and ... A glass ionomer cement (GIC) is a dental restorative material used in dentistry as a filling material and luting cement, ... This led to glass ionomer cements to be introduced in 1972 by Wilson and Kent as derivative of the silicate cements and the ... The glass ionomer cements incorporated the fluoride releasing properties of the silicate cements with the adhesive qualities of ...
The toughness of most ceramics is 2-4 MPa√m, but toughened zirconia is as much as 13, and cemented carbides are often over 20. ... Soc., 90 [3] p 673-680 (Mar 2007). Metallographic Preparation of Ceramic and Cermet Materials, Leco Met-Tips No. 19, 2008. ... "Metallography of Cemented Carbides," ASM Handbook Volume 9: Metallography and Microstructures, ASM International, 2004, p 1057- ... Microscopy of Ceramics and Cements, Academic Press Inc., 1955. W.E. Lee and W.M. Rainforth, Ceramic Microstructures: Property ...
Until the 1950s, the most important ceramic materials were (1) pottery, bricks and tiles, (2) cements and (3) glass. A ... composite material of ceramic and metal is known as cermet.. Other ceramic materials, generally requiring greater purity in ...
An MMC is complementary to a cermet. MMCs are made by dispersing a reinforcing material into a metal matrix. The reinforcement ... High performance tungsten carbide cutting tools are made from a tough cobalt matrix cementing the hard tungsten carbide ...
Cobalt-cemented tungsten carbide is also anticipated to be a human carcinogen by the American National Toxicology Program. http ... "Comparative study of WC-cermet coatings sprayed via the HVOF and the HVAF Process". Journal of Thermal Spray Technology. 7 (2 ... The material is usually called cemented carbide, solid carbide, hardmetal or tungsten-carbide cobalt. It is a metal matrix ... Tungsten carbide, typically in the form of a cemented carbide (carbide particles brazed together by metal), has become a ...
... "cement" resistors, though they do not actually contain any traditional cement. The aluminum-cased types are designed to be ... Cermet Phenolic Tantalum Water resistor A resistor may have one or more fixed tapping points so that the resistance can be ... This composite of glass and conductive ceramic (cermet) material is then fused (baked) in an oven at about 850 °C. Thick film ... The type of material is also usually different consisting of one or more ceramic (cermet) conductors such as tantalum nitride ( ...
Natural cement-stones, after burning, produced cements used in concretes from post-Roman times into the 20th century, with some ... cermet (ceramic and metal) and concrete. Ceramic matrix composites are built primarily for fracture toughness, not for strength ... Vitruvius specifies a ratio of 1 part lime to 3 parts pozzolana for cements used in buildings and a 1:2 ratio of lime to pulvis ... "Minerals commodity summary - cement - 2007". US United States Geological Survey. 1 June 2007. Archived from the original on 13 ...
Surgical cermets are used regularly. Joint replacements are commonly coated with bioceramic materials to reduce wear and ... According to the formulation and shaping process used, bioceramics can vary in density and porosity as cements, ceramic ...
6C that can be formed and the brittleness of these phases makes control of the carbon content in WC-Co cemented carbides ... Jacobs, L.; M. M. Hyland; M. De Bonte (1998). "Comparative study of WC-cermet coatings sprayed via the HVOF and the HVAF ... Tungsten carbide, typically in the form of a cemented carbide (carbide particles brazed together by metal), has become a ... The material is usually called cemented carbide, solid carbide, hardmetal or tungsten-carbide cobalt. It is a metal matrix ...
Cermets are ceramic particles containing some metals. The wear resistance of tools is derived from cemented carbides with the ...
Natural cement-stones, after burning, produced cements used in concretes from post-Roman times into the 20th century, with some ... cermet (ceramic and metal) and concrete. Ceramic matrix composites are built primarily for fracture toughness, not for strength ... "Minerals commodity summary - cement - 2007". US United States Geological Survey. 1 June 2007. Archived from the original on 13 ... Vitruvius specifies a ratio of 1 part lime to 3 parts pozzolana for cements used in buildings and a 1:2 ratio of lime to pulvis ...
... ... In the clinical part of a two-part study on the use of glass-ionomer-silver-cermet cement as a pit and siffure sealant, 100 ...
... the cemented carbide body or the cermet body can have a hardness of at least 87.0 Hra. In another example, the cemented carbide ... the cemented carbide body or the cermet body can have a fracture toughness of at least 3 Mpa m 3/2 . For example, the cemented ... the cemented carbide body or the cermet body can have a hardness of at least 83.0 Hra. For example, the cemented carbide body ... the cemented carbide body or the cermet body can have a hardness of at least 89.5 Hra. In another example, the cemented carbide ...
Cements, Cermet , Cermet , KetacSilver , Ketac Silver , Ketac-Silver Definition Fluoride-releasing restorative materials made ... Sintering of the metal particles is a means of improving those physical properties that will make the glass ionomer cement more ... Glass ionomers are fluoride-releasing cements that are not very durable. ...
Select 2018 high quality Wholesale Cemented Carbide Material products in best price from certified Chinese Copper Material ... manufacturers, Cemented Carbide suppliers, wholesalers and factory on Made-in-China.com ... Hard Refractory Ceramic Material Cermet Zirconium Carbide FOB Price: US $ 0.1 / gram. Min. Order: 100 gram ... Steel Cemented Carbide Plant Wear-Resistant Alloy Parts Materials FOB Price: US $ 17.5 / Kgs. Min. Order: 1 Kgs ...
The aim was also to investigate the use of cermet glass-ionomer cement for the purpose filling in the abutment teeth for ... The aim was also to investigate the use of cermet glass-ionomer cement for the purpose filling in the abutment teeth for ... The aim was also to investigate the use of cermet glass-ionomer cement for the purpose filling in the abutment teeth for ... Examination of the purpose fillings made of cermet glass-ionomer cement in abutment teeth for removable partial dentures. ...
Cermet Cements. Fluoride-releasing restorative materials made by the sintering of metal (usually silver) particles to glass ... Sintering of the metal particles is a means of improving those physical properties that will make the glass ionomer cement more ... Glass ionomers are fluoride-releasing cements that are not very durable. ...
... and an outer layer of cemented carbide bonded to an outer surface of the inner layer, wherein a thermal ... A strip-rolling cemented carbide composite roll comprising an inner layer made of steel or iron, ... at least an intermediate layer adjacent to the outer layer of cemented carbide is preferably a cermet such as cemented carbide ... At least one intermediate layer of cermet such as cemented carbide or a metal is preferably formed between the outer layer of ...
Cemented Carbides and Cermets $25.00 26. Low-Expansion Alloys $25.00 27. Electrical Contact Alloys $25.00 ...
Carbide saw Childs, Thomas (2000). "A6.2 Cemented carbides and cermets". Metal Machining: Theory and Applications. Butterworth- ... Media related to Cemented carbides at Wikimedia Commons Schubert, W.-D.; Lassner, E.; Böhlke, W (June 2010). "Cemented Carbides ... It consists of fine particles of carbide cemented into a composite by a binder metal. Cemented carbides commonly use tungsten ... Cemented carbides are metal matrix composites where carbide particles act as the aggregate and a metallic binder serves as the ...
Glass Ionomer Cement Filling. from 200 лв.. Cermet from 250 лв.. Cermet filing threshold ...
This article belongs to the Special Issue Design of Cemented Carbides and Cermet) ... Effect of Graphene and Carbon Nanotubes on the Thermal Conductivity of WC-Co Cemented Carbide ...
Cermets are able to bond to tooth tissue similar to glass ionomer cements. Like glass ionomer cements, it is recommended that ... Dental cermets, or silver cermets, are a type of restorative material dentists use to fill tooth cavities. Silver cermets were ... Like glass ionomer cements and dental compomers, silver cermets are able to release fluoride over a sustained period of time. ... Cermets also have a similar compressive strength, flexural strength, and solubility as glass ionomer cements, some of the main ...
Hightemperature deformation mechanisms of cemented carbides and cermets.. Casapu M.C.. ETH Zurich, 2007 ... Influence of the inherent heterogeneity of cement on the uptake mechanisms of Ni and Co:a micro-spectroscopic study.. ... Fe-containing hydrates and their fate during cement hydration: thermodynamic data and experimental study. ...
Tile Cutting Tool , Carbide Powder , Cemented Carbide Additive , Cutting Tool Material , Cermet Cutter Blank ... Dia14 * 60mm Tic Cermet Rods Blank for Casting on Hammer Crusher Head ... Dia14 * 60mm Tic Cermet Rods Blank for Casting on Hammer Crusher Head ...
Restoration of class II cavities in primary molar teeth with conventional and resin modified glass ionomer cements: a ... Over a quarter of the cermets failed compared with a single RMGIC. The MST for cermet was 37 months, while the MST for RMGIC ... glass ionomer cement, * glass polyalkenoate cement, * glass polyalkenoate cement, * fluoride containing restoration, * ... A new transluscent cement for dentistry. The glass ionomer cement. Br Dent J 1972;132:133-135. Yu C, Gao X-J, Deng D-M, Yip H-K ...
A hard metal or cermet sintered body and a method of making it wherein a solid phase containing WC and a binder phase are ... Hybrid cemented carbide composites US7384443B2 (en) 2003-12-12. 2008-06-10. Tdy Industries, Inc.. Hybrid cemented carbide ... Hybrid cemented carbide composites US20070006679A1 (en) * 2003-05-20. 2007-01-11. Bangaru Narasimha-Rao V. Advanced erosion- ... Composite cemented carbide rotary cutting tools and rotary cutting tool blanks US8308096B2 (en) 2009-07-14. 2012-11-13. TDY ...
CCA12314: Polycarboxylate Polymers and Blends in Different Cements - 04 December 2004. CCA12329: Cement and Superplasticizer ... JAI103272: Impact Wear Performance of Thin Hard Coatings on TiC Cermets - 01 July 2011 ... JTE12273J: Use of n-Propyl Bromide Solvents for Extraction and Recovery of Asphalt Cements - 01 September 2001 ... CCA10148J: Comparison of Liquid Dispersions with Spray-Dried Acrylic Polymers as Modifiers of a Cement-Based Patching Material ...
Cermets are ceramic particles containing some metals. The wear resistance of tools is derived from cemented carbides with the ...
Eco-Drive One flagship in 2.98 mm thick Cermet case with cemented carbide bezel; $6,000; Citizen Watch Co., NYC; 800-321-1023; ...
A comparison of glass cermet cement and amalgam restorations in primary molars. ... Restoration of class II cavities in primary molar teeth with conventional and resin modified glass ionomer cements: a ... Clinical performance and caries inhibition of resin-modified glass ionomer cement and amalgam restorations. ...
Cermets Development By ERS Process: Effect Of The Mould On The Material Properties Iñigo Agote, Miguel Lagos, Elodie Da Costa ... The influence of carbon and molybdenum in reactive sintered Ti(Mo)C-NiCr cermets Marek Jõeleht, Jüri Pirso, Kristjan Juhani, ... Optimization Of The Introduction Of Grain Growth Inhibitor In Cemented Carbides Victor Ioan Stanciu, Véronique Vitry, Fabienne ... Corrosion damage in WC-Co cemented carbides: Residual strength assessment and 3D FIB-FESEM tomography characterization ...
Glass-ionomer--silver cermet cement has been used extensively for restorations in children and adolescents since 1984. This ... Observations about glass-ionomer--silver cermet cement in clinical use are also reported. ...
2. BERG, J. H.; FARRELL, J. E.; BROWN, L. R. Class II glass ionomer/silver cermet restorations and their effect on ... conventional glass-ionomer cements. The conventional glass-ionomer cements retained less mutans streptococci than the composite ... The glass-ionomer cements can interfere with the growth of cariogenic bacteria, as shown by BERG et al.2 (1990) and GARIB et al ... The glass-ionomer cements, particularly the resin-modified ionomers (Table 2), showed smaller numbers of mutans streptococci ...
... cement, glass and cermet), new products and fabrication process development. ...
Cemented carbide. US5789686. Jun 6, 1995. Aug 4, 1998. Kennametal Inc.. Composite cermet articles and method of making. ... Cemented carbide. US5484468. Feb 7, 1994. Jan 16, 1996. Sandvik Ab. Cemented carbide with binder phase enriched surface zone ... Composite cermet articles and method of making. US5697046. Jun 6, 1995. Dec 9, 1997. Kennametal Inc.. Composite cermet articles ... Double cemented carbide inserts. EP0453428A1. Apr 18, 1991. Oct 23, 1991. Sandvik Aktiebolag. Method of making cemented carbide ...
Cemented carbide. US5789686. Jun 6, 1995. Aug 4, 1998. Kennametal Inc.. Composite cermet articles and method of making. ... Cemented carbide. US5484468. Feb 7, 1994. Jan 16, 1996. Sandvik Ab. Cemented carbide with binder phase enriched surface zone ... Composite cermet articles and method of making. US5697046. Jun 6, 1995. Dec 9, 1997. Kennametal Inc.. Composite cermet articles ... The cemented carbide metallurgist is thus challenged to develop cemented carbides with both high wear resistance and high ...
The segments 80 may alternatively comprise a refractory metal, such as tungsten, molybdenum, or TZM alloy, or a cermet, such as ... such as Co-cemented tungsten carbide. In addition, the process 118 may provide other features such as those described with ... The radial segment may alternatively comprise a refractory metal, such as tungsten, molybdenum, or TZM alloy, or a cermet, ... Co-cemented tungsten carbide. The material and wedge-shaped geometry of the radial segments 80 are configured to reduce the ...
Both single-factor and orthogonal experiments were carried out with cemented carbide, cermet and CBN tools. The effects of ...
In dental application, cermets are used, which are metal reinforced glass-ionomer cements. Cermets are used to restore tooth ... Glass-ionomer Cement Market: Introduction. *Glass-ionomer cement is used in dentistry as a limiting cement and filling material ... Key Drivers of Glass-ionomer Cement Market. *Glass-ionomer cement is expected to expand significantly during the forecast ... Due to these features, the restorative cement segment is anticipated to hold a considerable share of the glass-ionomer cement ...
It is used to make parts for electrical circuits, cutting tools, cermets, and cemented carbide. A cermet is a material made of ... Cermets are used where very high temperatures occur for long periods of time. For example, the parts of a rocket motor or a jet ... Cemented carbides are used for rock and metal cutting. They can operate at 100 times the speed of similar tools made of steel. ... A cemented carbide is made by bonding tungsten carbide to another metal. The product is very strong and remains strong at high ...
  • 22. The method of any one of claims 15-21, wherein the method further comprises the step of sintering the body, thereby producing a cemented carbide body or a cermet body. (sumobrain.com)
  • The method of claim 1, wherein the hard material is selected from the group consisting of cemented carbide, cermets and ceramics. (sumobrain.com)
  • Therefore, composites or cermets of Ti alloys with CS or HA ceramics could be employed to resolve the problems related to the coating and brittleness of pure ceramics. (hindawi.com)
  • The composite material made of the ceramics and metals is called cermet. (hindawi.com)
  • 1.1 This test method was developed for ranking the high-stress abrasion resistance of cemented carbides, but it has been successfully used on ceramics, cermets, and metal matrix hardfacings with a hardness over 55 HRC. (astm.org)
  • The 11th International Conference on the Science of Hard Materials (ICSHM11) attempts to bring together scientists, technologists and manufacturers of Hard Materials (cemented carbides, cermets, advanced ceramics, composites and super-hard materials). (mpif.org)
  • Cutting tool materials are cemented carbides, cermets, and ceramics. (industrialpress.com)
  • Hightemperature deformation mechanisms of cemented carbides and cermets. (esrf.eu)
  • Sintering of the metal particles is a means of improving those physical properties that will make the glass ionomer cement more durable. (ctdbase.org)
  • The aim was also to investigate the use of cermet glass-ionomer cement for the purpose filling in the abutment teeth for removable partial dentures, as well as to investigate the surface of the purpose filling. (ac.rs)
  • Aim: To review the literature concerning the restoration of primary teeth with glass ionomer (GIC) or resin modified glass ionomer cement (RMGI) used in conventional class II cavities. (thefreelibrary.com)
  • Glass-ionomer cement is used in dentistry as a limiting cement and filling material. (transparencymarketresearch.com)
  • Glass-ionomer cement is used in the prevention of dental caries. (transparencymarketresearch.com)
  • Glass-ionomer cement is expected to expand significantly during the forecast period, owing to better features of this material over traditionally used ones, such as resin sealants. (transparencymarketresearch.com)
  • Glass-ionomer cement has high moisture tolerance, thin film thickness, and the ability to release fluoride, which helps the demineralized tooth to re-mineralize again. (transparencymarketresearch.com)
  • Due to such unique characteristics, the demand for glass-ionomer cement is anticipated to grow by 2027. (transparencymarketresearch.com)
  • In terms of product type, the luting segment held a significant share of the global glass-ionomer cement market in 2018. (transparencymarketresearch.com)
  • Due to these features, the restorative cement segment is anticipated to hold a considerable share of the glass-ionomer cement market in the near future. (transparencymarketresearch.com)
  • Different methods have been used to address the physical shortcomings of glass-ionomer cements, such as thermo-light curing (polymerization), or addition of the zirconia, hydroxyapatite, N-vinyl pyrrolidone, N-vinyl caprolactam, and fluoroapatite, to reinforce glass-ionomer cement. (transparencymarketresearch.com)
  • Easy availability of various alternatives, which can be used as substitutes for glass-ionomer cement is expected to hamper the market growth. (transparencymarketresearch.com)
  • Growing incidences of dental problems and innovations in dental materials are likely to enhance the demand for glass-ionomer cement in the region. (transparencymarketresearch.com)
  • These factors are expected to boost the glass-ionomer cement market in the region. (transparencymarketresearch.com)
  • up to 18 January 2008 (published in the European Journal of Paediatric Dentistry in 2009) and addressing the review question of whether, in the same dentition and same cavity class, glass-ionomer cement (GIC) restored cavities show less recurrent carious lesions on cavity margins than cavities restored with amalgam. (biomedcentral.com)
  • Ten Cate and van Duinen [ 4 ] have shown, in-situ, a hyper-remineralisation effect in demineralised tooth tissues bordering glass ionomer cement (GIC) type restorations. (biomedcentral.com)
  • Thus, this quantitative systematic review aims to update the existing evidence provided by the original article [ 7 ] regarding the review question of whether, in the same dentition and same cavity class, glass-ionomer cement (GIC) restored cavities show less recurrent carious lesions on cavity margins than cavities restored with amalgam. (biomedcentral.com)
  • MccabeThe 5-year results of a clinical trial comparing a glass polyalkenoate ionomer cement restoration with an amalgam restorationBritish Dental Journalvol. (latoiledepandore.fr)
  • Folkesson, I. Andersson-wenckert, and J. Van-dijkenResin-modified glass ionomer cement restorations in primary molarsSwed Dent Jvol. (latoiledepandore.fr)
  • Kramer and R. FrankenbergerClinical performance of a condensable metal-reinforced glass ionomer cement in primary molarsBritish Dental Journalvol. (latoiledepandore.fr)
  • Rutar, L. Mcallan, and M. TyasThree-year clinical performance of glass ionomer cement in primary molarsInternational Journal of Paediatric Dentistryvol. (latoiledepandore.fr)
  • Hubel and I. MejareConventional versus resin-modified glass-ionomer cement for Class II restorations in primary molars. (latoiledepandore.fr)
  • The aim of this in vitro study was to investigate the antimicrobial effect of five dental luting cements which were based on glass ionomer cement technology. (web.app)
  • Das U, Viswanath D, Azher U. Clinical evaluation of resin composite and resin modified lass ionomer cement in class III restorations of primary maxillary molars: a comparative in vivo study. (ijcpd.com)
  • Results: Maximum Von Mises stress of 408.189 MPa was seen in Model-4 with Prefabricated Light transmitting post and glass ionomer cement core and minimum Von Mises stress of 85 MPa was seen in Model-2 with Prefabricated fiber reinforced post and glass ionomer cement core. (journalgateway.com)
  • Glass-ionomer cement is the ideal restorative material for non-carious cervical lesions, because of its adhesive properties and because the load on the final restoration is negligible. (stadiumsports.com.br)
  • The aim of this study was to evaluate the antimicrobial activity and toxicity of glass ionomer cement (GIC) modified with 5-methyl-2-(1-methylethyl)phenol (thymol) against Streptococcus mutans in silico and in vitro. (stadiumsports.com.br)
  • Glass- ionomer cement (GIC) formation was tested with all the prepared glass compositions, but only the samples with higher concentrations of Al 2 O 3, x ≥ 0.20, produced sustainable cements. (stadiumsports.com.br)
  • Synthesis and characterization of diethanolamine‐containing glass ionomer cement. (stadiumsports.com.br)
  • The aim of this work was preparation and characterization of strontium-containing glass ionomer cement and evaluation of its bioactivity in the simulated body fluid. (stadiumsports.com.br)
  • In vitro, the glass ionomer cement was toxic when freshly prepared. (stadiumsports.com.br)
  • Glass ionomer cement, both auto and light cured will adhere to caries affected and infected dentin. (stadiumsports.com.br)
  • The development of glass-ionomer cement (GIC) materials was originated from the combination of two different dental cements, silicate (for aluminosilicate glass powder) and zinc polycarboxylate (for polyacrylic acid liquid) 2, 25. (stadiumsports.com.br)
  • This article describes the properties, advances and shortcomings of glass-ionomer cement as a restorative material. (stadiumsports.com.br)
  • The aim of this study was to assess the performance of glass ionomer cement (GIC) added with TiO 2 nanotubes. (stadiumsports.com.br)
  • enhancement of glass ionomer cement (GIC). (stadiumsports.com.br)
  • مشخصات نویسندگان مقاله Preparation and Biological Evaluation of Glass Ionomer Cement-Diopside Nanocomposite M Rezazadeh - M.Sc student, Department of Materials Engineering, University of Shahrekord, Shahrekord, Iran. (stadiumsports.com.br)
  • Disadvantages of glass-ionomer cements are inadequate retention or lack of strength, limited wear resistance, and low toughness. (transparencymarketresearch.com)
  • One of the disadvantages of glass ionomer cements is their undesirable mechanical properties and bioactivity. (stadiumsports.com.br)
  • 3. The strip-rolling cemented carbide composite roll according to claim 1, wherein said surface of the outer layer has an in-plane residual compressive stress. (freepatentsonline.com)
  • 4. The strip-rolling cemented carbide composite roll according to any one of claim 1, wherein it further comprises at least one intermediate layer between said outer layer and said inner layer. (freepatentsonline.com)
  • 5. The strip-rolling cemented carbide composite roll according to claim 4, wherein said intermediate layer is made of cermet. (freepatentsonline.com)
  • It consists of fine particles of carbide cemented into a composite by a binder metal. (wikipedia.org)
  • As a result of this process, the binder is embedding/cementing the carbide grains and thereby creates the metal matrix composite with its distinct material properties. (wikipedia.org)
  • The aim of this study was to evaluate microbial retention on conventional (Chelon-Fil and Vidrion R) and resin-modified (Vitremer and Fuji II LC) glass-ionomer cements, in situ , using a hybrid composite resin (Z100) as a control. (scielo.br)
  • The resin-modified glass-ionomer cements and the composite resin retained the same levels of microorganisms on their surfaces. (scielo.br)
  • The resin-modified glass-ionomers retained less mutans streptococci than the composite resin and conventional glass-ionomer cements. (scielo.br)
  • The conventional glass-ionomer cements retained less mutans streptococci than the composite resin, but that difference was not statistically significant. (scielo.br)
  • The industry generally refers to materials with a Vickers hardness HV of 10~40GPa as high-hard materials, generally represented by metal-based or ceramic-based composite materials, such as cemented carbide, silicon carbide, corundum (alumina), etc. (rheniumet.com)
  • Silver cermets were created to improve the wear resistance and hardness of another type of filling material, glass ionomer cements, through the addition of silver. (wikipedia.org)
  • This study investigated the impact of calcium silicate (CS) content on composition, compressive mechanical properties, and hardness of CS cermets with Ti-55Ni and Ti-6Al-4V alloys sintered at 1200°C. The powder metallurgy route was exploited to prepare the cermets. (hindawi.com)
  • As a result the cermets have higher hardness, transverse rupture strength and 1.2-2 times higher wear and erosion resistance. (scientific.net)
  • A cemented carbide alloy, which contains tungsten carbide as a main component and cobalt, nickel, or the like as a binder metal and which has added thereto a carbide of titanium, tantalum, chromium, or the like for improving performance, has been widely used in tools for metal processing or the like by virtue of its excellent hardness and abrasion resistance. (justia.com)
  • Mentions of "carbide" or "tungsten carbide" in industrial contexts usually refer to these cemented composites. (wikipedia.org)
  • Cemented carbides are metal matrix composites where carbide particles act as the aggregate and a metallic binder serves as the matrix (like gravel aggregate in a matrix of cement makes concrete). (wikipedia.org)
  • Abstract: The present study describes the wear and mechanical behaviour of some carbide composites (TiC-base cermets and WC-base hardmetals) in cyclic loading applications (blanking of sheet metal). (scientific.net)
  • Restoration of class II cavities in primary molar teeth with conventional and resin modified glass ionomer cements: a systematic review of the literature. (thefreelibrary.com)
  • Resin-modified glass-ionomer cements have shown improved properties, including faster setting, as well as less sensitivity to hydration and dehydratation 9 . (scielo.br)
  • There appear to be few reports on the effects of resin-modified glass-ionomer cements which permit an improvement of finishing and polishing 16 on the surrounding microbiota, especially regarding the levels of mutans streptococci. (scielo.br)
  • Therefore, the aim of this study was to evaluate, in situ, microbial retention on conventional and resin-modified glass-ionomer cements. (scielo.br)
  • Two conventional glass-ionomer cements, Chelon-Fil (Espe GmbH, Germany) and Vidrion R (SS White, Brazil), and two resin-modified glass-ionomer cements, Vitremer (3M Dental Products, Brazil) and Fuji II LC (GC, Japan), were studied. (scielo.br)
  • Cermet Bond Diamond Grinding Wheels / Diamond Grinding Disc 2-2.5mm Thicknes Application: It is widely used in accurately grinding ceramic, glass, cemented carbide, hard alloy steel, etc. (disqueenfrance.com)
  • cermet insert, Cermet /cermet rod/cermet insert/cermet bar/cermet tips/cermet strips/cermet plate/cermet sheets/cermet material/ceramic metal/cermet tool/cermet cutting tool/solid cermet/tic cermet rods/tic cermet bar/titanium cabide rods/titanium cabide bar. (diytrade.com)
  • Glass-ionomer cements are derived from the reaction of silicate glass-powder and polyacrylic acid ionomer. (transparencymarketresearch.com)
  • Glass ionomer cements are available since the early 1970s 56 and are derived from silicate and zinc polycarboxylate cements. (bvsalud.org)
  • This reactive glass is similar to that existing in the silicate cements. (bvsalud.org)
  • For comparison a conventional silicate cement (Super Syntrex) was included in the in vivo experiments. (stadiumsports.com.br)
  • The microstructure of such cermets is fine-grained and more homogeneous than that of cermets produced by conventional method. (scientific.net)
  • In addition, our several theoretical studies have shown that stress intensity factors at the external surface of the cement layer of the cement coated metallic implants are higher which may be the primary cause of easy flaking off of the coatings from the metallic surfaces [ 22 , 23 ]. (hindawi.com)
  • Abstract: Magnetron sputtered TiN, (Ti, Al)N and TiN/(Ti, Al)N multilayer coatings grown on cemented carbide substrates have been characterized by using electron probe microanalysis (EPMA), X-ray diffraction (XRD), scanning electron spectroscopy (SEM), nanoindentation, scratcher and cutting tests. (scientific.net)
  • Cemented carbides commonly use tungsten carbide (WC), titanium carbide (TiC), or tantalum carbide (TaC) as the aggregate. (wikipedia.org)
  • The first cemented carbide developed was tungsten carbide (introduced in 1927) which uses tungsten carbide particles held together by a cobalt metal binder. (wikipedia.org)
  • Since then other cemented carbides have been developed, such as titanium carbide, which is better suited for cutting steel, and tantalum carbide, which is tougher than tungsten carbide. (wikipedia.org)
  • The coefficient of thermal expansion of cemented tungsten carbide is found to vary with the amount of cobalt used as a metal binder. (wikipedia.org)
  • A method of producing sodium tungstate of this invention including allowing cemented carbide scrap containing tungsten to react with a molten salt containing sodium sulfate and having added thereto a metal oxide, to thereby obtain sodium tungstate. (justia.com)
  • It should be noted that, in the following description, the "cemented carbide scrap" refers to used scrap of an alloy containing 50 wt % or more of tungsten carbide, and cobalt or nickel as a binder phase. (justia.com)
  • 60% or more of tungsten resources have been used in the cemented carbide tools. (justia.com)
  • Further, the prices of ammonium paratungstate (APT) and tungsten oxide serving as intermediate raw materials for a tungsten material have continued to rise in recent years, and there is a demand for establishment of a recycling technology for tungsten contained in the cemented carbide tools. (justia.com)
  • For example, in Non Patent Document 1, there is disclosed a method of recycling a cemented carbide tool, which involves recycling tungsten carbide from a used cemented carbide tool or the like. (justia.com)
  • Dental cermets, or silver cermets, are a type of restorative material dentists use to fill tooth cavities. (wikipedia.org)
  • Therefore, silver cermets are not a popular choice of restorative material. (wikipedia.org)
  • In the clinical part of a two-part study on the use of glass-ionomer-silver-cermet cement as a pit and siffure sealant, 100 children between the ages of 6 and 15 years who had noncarious permanent first molar teeth bilaterally received sealants. (quintpub.com)
  • Silver cermets have performed poorly in clinical practice despite their theorised advantages over glass ionomer cements. (wikipedia.org)
  • Observations about glass-ionomer--silver cermet cement in clinical use are also reported. (quintpub.com)
  • Klini *ka ispitivanja efikasnosti ispuna kod «tunel» preparacija restaurisanih kermet glas-jonomer cementimaSmear Clinical Research of the Restoration Efficacy in Tunnel Preparation Restored with Cermet Glass-Ionomer Cements SGS YU ISSN 0039-1743-COBISS. (sputtr.com)
  • Due to its chemical, mechanical and biological properties, the glass ionomer cements (GIC) consist in one of the most versatile direct restorative materials, with many potential clinical indications, especially in the context of minimally invasive dentistry. (bvsalud.org)
  • Kilpatrick, J. MccabeThe use of a reinforced glass-ionomer cermet for the restoration of primary molars: a clinical trialBritish Dental Journalvol. (latoiledepandore.fr)
  • The use of glass-ionomer cements in clinical dentistry is now well established. (stadiumsports.com.br)
  • This article is an updated review of the published literature on glass-ionomer cements and covers their structure, properties and clinical uses within dentistry, with an emphasis on findings from the last five years or so. (stadiumsports.com.br)
  • Tradezz.com not only provides 20001 kinds of different plastic dvd tray inserts products, but also offers cemented carbide inserts,cemented inserts,indexable inserts,sterilization (autoclavable) plastic tray,Internal DVD RW Drive with SATA interface/dvd writer for laptop for you. (tradezz.com)
  • Glass-ionomer-silver-cermet cements applied as fissure sealants II. (quintpub.com)
  • Glass ionomers are fluoride-releasing cements that are not very durable. (ctdbase.org)
  • It could be concluded that cement glass-ionomer was not the appropriate material for the purpose fillings in abutment teeth for removable partial dentures. (ac.rs)
  • Cermets also have a similar compressive strength, flexural strength, and solubility as glass ionomer cements, some of the main limiting factors for both materials. (wikipedia.org)
  • Like glass ionomer cements and dental compomers, silver cermets are able to release fluoride over a sustained period of time. (wikipedia.org)
  • However, the evidence suggests the fluoride releasing abilities of cermets are poorer than glass ionomer cements. (wikipedia.org)
  • Cermets are able to bond to tooth tissue similar to glass ionomer cements. (wikipedia.org)
  • Like glass ionomer cements, it is recommended that the tooth tissue is conditioned with polyacrylic acid (a weak acid) before application. (wikipedia.org)
  • Glass-ionomer cements. (scielo.br)
  • Due to their physical, chemical and biological properties, glass-ionomer cements have been used as lining, luting and filling materials, especially for restoring cervical areas 6 . (scielo.br)
  • The surfaces of conventional glass-ionomer cements remain relatively rough, even with careful polishing 6,20 . (scielo.br)
  • Glass-ionomer--silver cermet cement has been used extensively for restorations in children and adolescents since 1984. (quintpub.com)
  • The restorative cement segment is projected to grow at a rapid rate during the forecast period, owing to the increase in use of glass-ionomers cement in restorations of tooth. (transparencymarketresearch.com)
  • Retention of restorations on a prepared tooth is the main function of glass-ionomers cement. (transparencymarketresearch.com)
  • Moreover, glass-ionomers cement has several advantages in restorations, such as strong marginal seal that helps to avoid secondary decay and micro-leakage, durability, and allows easy interior and exterior cleanup. (transparencymarketresearch.com)
  • Glass ionomer cements (GICs), also known as glass polyalkenoic cement, has a fundamental role in current Dentistry. (bvsalud.org)
  • Glass ionomer cements then came from the replacement of the zinc oxide by an ionizable reactive glass. (bvsalud.org)
  • Antimicrobial effects of dental luting glass ionomer cements. (web.app)
  • The biological compatibility of an experimental glass ionomer (silicopolyacrylate) cement has been assessed inin vitro (cell culture) and in vivo (monkey teeth) tests. (stadiumsports.com.br)
  • A hard metal or cermet sintered body and a method of making it wherein a solid phase containing WC and a binder phase are formed together with WC platelets by direct microwave irradiation, utilizing reactive sintering to form the WC at least in part and to produce the platelets. (google.com)
  • Fundamental deformation characteristics of transition metal interstitial-compounds are briefly reviewed, and reference is made to experimental and proven metallic cermet systems using WC/Co hardmetals as a basis for comparison. (springer.com)
  • S. R. Schenck, R. J. Gottschall and W. S. Williams, Deformation of cemented carbides: high temperatures, stress relaxation, and strain-rate dependence, J. Mat. (springer.com)
  • The added silver imparts radio-opacity to cermets which aids radiographic detection of recurrent caries at a future date. (wikipedia.org)
  • La problemática que plantea el reducido espesor de tejidos dentarios en elementos primarios, amplitud y escasa profundidad cavitaria, junto a la necesidad de buscar una "integración diente-restauración", con la mejor adaptacion, sellado marginal, baja incidencia de caries secundaria y la amplia gama de materiales restauradores que nos ofrece el mercado odontológico, motivó la realización del presente trabajo. (bvsalud.org)
  • The invention relates to a hard metal or cermet sintered body, consisting of at least one hard material phase containing WC and a binder phase, as well as embedded WC platelets (plate-shaped reinforcing materials). (google.com)
  • It concluded that the composition and mechanical properties of sintered cermets of Ti-55Ni and Ti-6Al-4V with CS significantly depend on the CS content in raw cermet materials. (hindawi.com)
  • Thus, the different mechanical properties of the cermets can be used as potential materials for different hard tissues replacements. (hindawi.com)
  • C. S. G. Ekemar, S. A. O. Iggström, and G. K. A. Heden, Influence of some metallurgical parameters of cemented carbide on the sensitivity to thermal fatigue cracking at cutting edges, in "Materials for Metal Cutting", ISI Publication 126, Iron and Steel Inst. (springer.com)
  • The polycarboxylate cements were the first materials to provide adhesion to tooth structures, mainly produced by the polyacrylic acid to ensure their biocompatibility, because it is a weak and high molecular weight acid, which does not diffuse through the dentinal tubules. (bvsalud.org)
  • Based on this finding, the polycarboxylate cements gained quickly popularity as cementing agents, but could not be used as restorative materials because of the high solubility of unsatisfactory mechanical properties and unacceptable aesthetics caused by residual zinc oxide. (bvsalud.org)
  • With the development of material technology, dental cements have evolved into stronger and more durable materials. (stadiumsports.com.br)
  • 1. New cemented carbide materials and parts developed based on the cermet genetic improvement project, including high-temperature alloy CNC blades, cutting tools, high-hard surfaces and high wear resistance, high-speed stirring, high-temperature rotation, high-speed, high-temperature and high-pressure injection, high-temperature and high-pressure sealing, etc. (rheniumet.com)
  • An attempt is made to define the role played by the fundamental properties of the constituents in determining the mechanical behaviour of metallic cermets. (springer.com)
  • The cermets with 40 wt% of CS had minimum compressive Young's modulus. (hindawi.com)
  • The minimum of compressive strength and strain percentage at maximum load were revealed in cermets with 50 and 40 wt% of CS with Ti-55Ni and Ti-6Al-4V cermets, respectively. (hindawi.com)
  • These substitutes include zinc phosphate, polycarboxylate, and resin-based sealants, which are used as dental cement. (transparencymarketresearch.com)
  • Cermets are used to restore tooth loss as a result of decay or cavity in tooth surface, or at the tooth root. (transparencymarketresearch.com)
  • 7. The method of claim 1 , further comprising providing a cemented carbide insert in the mold cavity prior to infiltrating the bed of transition metal carbide particles in the mold cavity with the molten material. (google.com)
  • While the incorporation of silver achieved this, cermets have poorer aesthetics, appearing metallic rather than white. (wikipedia.org)
  • During the thermal treatment that was performed after the pressing the chromium carbide was formed first and then the Cr3C2-Ni cermets were sintered in one cycle. (scientific.net)
  • There is evidence that cermets have poor wear resistance when used to restore a large surface area. (wikipedia.org)
  • cooling the molten material in the infiltrated bed of transition metal carbide particles to form the article to have a cemented transition metal carbide composition comprising at least one transition metal carbide phase and at least one binder phase comprising an alloy of at least one of cobalt, iron, and nickel. (google.com)
  • 5. The method of claim 4 , further comprising forming at least 75% of the volume of the cemented transition metal carbide composition of the article to comprise the at least one transition metal carbide phase. (google.com)
  • Digital bitewing radiographs were taken and unusually high areas of new interproximal decay were noted (Dexis-Platinum) (Fig. Calculations based on electroneutrality considerations were used to check the consistency of the NMR assignments in both glasses and cements. (stadiumsports.com.br)
  • Cemented carbide is a hard material used extensively as cutting tool material, as well as other industrial applications. (wikipedia.org)
  • As such, they are no longer a popular choice of material and it is unclear whether cermets will continue to be used. (wikipedia.org)