Specific alloys not less than 85% chromium and nickel or cobalt, with traces of either nickel or cobalt, molybdenum, and other substances. They are used in partial dentures, orthopedic implants, etc.
A trace element that plays a role in glucose metabolism. It has the atomic symbol Cr, atomic number 24, and atomic weight 52. According to the Fourth Annual Report on Carcinogens (NTP85-002,1985), chromium and some of its compounds have been listed as known carcinogens.
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.
Alloys that contain a high percentage of gold. They are used in restorative or prosthetic dentistry.
Inorganic compounds that contain chromium as an integral part of the molecule.
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.
Salts of chromic acid containing the CrO(2-)4 radical.
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)
Surface resistance to the relative motion of one body against the rubbing, sliding, rolling, or flowing of another with which it is in contact.
Exclusive legal rights or privileges applied to inventions, plants, etc.
The heat flow across a surface per unit area per unit time, divided by the negative of the rate of change of temperature with distance in a direction perpendicular to the surface. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.
Study of coins, tokens, medals, etc. However, it usually refers to medals pertaining to the history of medicine.
Inanimate objects that carry pathogenic microorganisms and thus can serve as the source of infection. Microorganisms typically survive on fomites for minutes or hours. Common fomites include CLOTHING, tissue paper, hairbrushes, and COOKING AND EATING UTENSILS.
Libraries in which a major proportion of the resources are available in machine-readable format, rather than on paper or MICROFORM.
Collections of systematically acquired and organized information resources, and usually providing assistance to users. (ERIC Thesaurus, http://www.eric.ed.gov/ accessed 2/1/2008)
The use of automatic machines or processing devices in libraries. The automation may be applied to library administrative activities, office procedures, and delivery of library services to users.
A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.
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.
Ordered compilations of item descriptions and sufficient information to afford access to them.
Substances made up of an aggregation of small particles, as that obtained by grinding or trituration of a solid drug. In pharmacy it is a form in which substances are administered. (From Dorland, 28th ed)
Chromic acid (H2Cr2O7), dipotassium salt. A compound having bright orange-red crystals and used in dyeing, staining, tanning leather, as bleach, oxidizer, depolarizer for dry cells, etc. Medically it has been used externally as an astringent, antiseptic, and caustic. When taken internally, it is a corrosive poison.
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)
Solution titration in which the end point is read from the electrode-potential variations with the concentrations of potential determining ions. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The determination of the concentration of a given component in solution (the analyte) by addition of a liquid reagent of known strength (the titrant) until an equivalence point is reached (when the reactants are present in stoichiometric proportions). Often an indicator is added to make the equivalence point visible (e.g., a change in color).
Electrodes which can be used to measure the concentration of particular ions in cells, tissues, or solutions.
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 thin protein film on the surface of DENTAL ENAMEL. It is widely believed to result from the selective adsorption of precursor proteins present in SALIVA onto tooth surfaces, and to reduce microbial adherence to the TEETH.
Proteins and peptides found in SALIVA and the SALIVARY GLANDS. Some salivary proteins such as ALPHA-AMYLASES are enzymes, but their composition varies in different individuals.
The principle immunoglobulin in exocrine secretions such as milk, respiratory and intestinal mucin, saliva and tears. The complete molecule (around 400 kD) is composed of two four-chain units of IMMUNOGLOBULIN A, one SECRETORY COMPONENT and one J chain (IMMUNOGLOBULIN J-CHAINS).
The process of producing a form or impression made of metal or plaster using a mold.
The clear, viscous fluid secreted by the SALIVARY GLANDS and mucous glands of the mouth. It contains MUCINS, water, organic salts, and ptylin.

Initial orthopaedic displacement compared with longitudinal displacement of the maxilla after a forward force application. An experimental study in dogs. (1/236)

The aim of this study was to compare the initial orthopaedic displacement of the maxilla in vivo and the longitudinal changes after a forward force application. The sample consisted of five 1-year-old dogs. An anterior force of 5 N on the maxilla was applied by a coil spring system pushing between Branemark implants and a maxillary splint. The initial displacement of the maxilla after force application was measured by means of speckle interferometry. The longitudinal displacement of the maxilla after a force application during 8 weeks was measured by superimposing standardized lateral cephalograms. The initial, as well as the longitudinal, displacement of the maxilla of the dogs was in a forward direction with some counterclockwise rotation. There was no statistical difference between the initial and longitudinal displacement. The biological response after force application during 8 weeks can be predicted by the initial orthopaedic displacement.  (+info)

The fixation of the cemented femoral component. Effects of stem stiffness, cement thickness and roughness of the cement-bone surface. (2/236)

After cemented total hip arthroplasty (THA) there may be failure at either the cement-stem or the cement-bone interface. This results from the occurrence of abnormally high shear and compressive stresses within the cement and excessive relative micromovement. We therefore evaluated micromovement and stress at the cement-bone and cement-stem interfaces for a titanium and a chromium-cobalt stem. The behaviour of both implants was similar and no substantial differences were found in the size and distribution of micromovement on either interface with respect to the stiffness of the stem. Micromovement was minimal with a cement mantle 3 to 4 mm thick but then increased with greater thickness of the cement. Abnormally high micromovement occurred when the cement was thinner than 2 mm and the stem was made of titanium. The relative decrease in surface roughness augmented slipping but decreased debonding at the cement-bone interface. Shear stress at this site did not vary significantly for the different coefficients of cement-bone friction while compressive and hoop stresses within the cement increased slightly.  (+info)

Comparison of in vivo wear between polyethylene liners articulating with ceramic and cobalt-chrome femoral heads. (3/236)

At yearly intervals we compared the radiological wear characteristics of 81 alumina ceramic femoral heads with a well-matched group of 43 cobalt-chrome femoral heads. Using a computer-assisted measurement system we assessed two-dimensional penetration of the head into the polyethylene liner. We used linear regression analysis of temporal data of the penetration of the head to calculate the true rates of polyethylene wear for both groups. At a mean of seven years the true rate of wear of the ceramic group was slightly greater (0.09 mm/year, SD 0.07) than that of the cobalt-chrome group (0.07 mm/year, SD 0.04). Despite the numerous theoretical advantages of ceramic over cobalt-chrome femoral heads, the wear performance in vivo of these components was similar.  (+info)

Unusual indelible enamel staining following fixed appliance treatment. (4/236)

Two cases are described of indelible enamel staining following fixed appliance therapy. The acquired pigmentation occurred in patients with an identifiable enamel defect prior to treatment. The interaction of factors to cause the staining is discussed and it's prevention in future cases highlighted. Subsequent restoration of the affected teeth is shown.  (+info)

Influence of finishing on the electrochemical properties of dental alloys. (5/236)

Dental alloy surface finishing procedures of may influence their electrochemical behavior, which is used to evaluate their corrosion resistance. We examined the polarization resistance and potentiodynamic polarization profile of the precious-metal alloys, Type 4 gold alloy and silver-palladium alloy, and the base-metal alloys, nickel-chromium alloy, cobalt-chromium alloy, and CP-titanium. Three types of finishing procedure were examined: mirror-finishing using 0.05 micron alumina particles, polishing using #600 abrasive paper and sandblasting. Dissolution of the alloy elements in 0.9% NaCl solution was also measured and compared with the electrochemical evaluation. The corrosion resistance of the dental alloys was found to relate to finishing as follows: The polarization resistance and potentiodynamic polarization behavior revealed that the corrosion resistance improved in the order of sandblasting, #600-abrasive-paper polishing, and mirror-finishing. While the corrosion potential, critical current density and passive current density varied depending on the type of finishing, the transpassive potential remained unchanged. The influence of finishing on the corrosion resistance of precious-metal alloys was less significant than on that of base-metal alloys. A mirror-finishing specimen was recommended for use in evaluation of the corrosion resistance of various dental alloys.  (+info)

Effect of the adhesive layer thickness on the fracture toughness of dental adhesive resins. (6/236)

We investigated how the thickness of an adhesive layer between two Co-Cr alloy plates affected the mode I fracture toughness of dental adhesive resin by varying the type of resin using a double cantilever beam (DCB) test. Two typical adhesive resins (PV and SB) were used. The adhesive layers of the DCB test specimens were 20, 100 and 200 microns thick. The fracture modes of PV differed with the thickness of the adhesive layer, such as interface fracture at 20 microns thickness, and similar cohesive fracture at 100 and 200 microns thickness. In the case of SB, crack-propagating areas were observed as cohesive fractures in all test specimens with different adhesive layer thickness, and the surfaces of these areas became remarkably rougher as the thickness of the adhesive layer increased. The fracture toughness of PV was not affected by the differences in thickness between the 100 and 200 microns adhesive layers, but there was a notable decrease in fracture toughness when the adhesive layer decreased to a thickness of 20 microns. That of SB showed a tendency to increase as the adhesive layer became thicker.  (+info)

The laser welding technique applied to the non precious dental alloys procedure and results. (7/236)

AIM: The laser welding technique was chosen for its versatility in the repair of dental metal prosthesis. The aim of this research is to assess the accuracy, quality and reproducibility of this technique as applied to Ni-Cr-Mo and Cr-Co-Mo alloys often used to make prosthesis METHOD: The alloy's ability to weld was evaluated with a pulsed Nd-Yag Laser equipment. In order to evaluate the joining, various cast wires with different diameters were used. The efficiency of the joining was measured with tensile tests. In order to understand this difference, metallographic examinations and X-Ray microprobe analysis were performed through the welded area and compared with the cast part. RESULTS: It was found that a very slight change in the chemistry of the Ni-Cr alloys had a strong influence on the quality of the joining. The Co-Cr alloy presented an excellent weldability. A very important change in the microstructure due to the effect of the laser was pointed out in the welding zone, increasing its micro-hardness. CONCLUSION: The higher level of carbon and boron in one of the two Ni-Cr was found to be responsible for its poor welding ability. However for the others, the maximum depth of welding was found to be around 2mm which is one of the usual thicknesses of the components which have to be repaired.  (+info)

Influence of polyethylene and femoral head surface quality on wear: a retrieval study. (8/236)

Thirty-two polyethylene sockets and 22 femoral heads were retrieved because of aseptic loosening more than 9 years after total hip arthroplasty. The volumetric wear rates of the retrieved polyethylene sockets were significantly greater in those coupled with an alumina head (P < 0.05). The retrieved alumina heads showed significantly better surface roughness and roundness than heads of Co-Cr and of stainless steel (P < 0.05). However, no significant difference was found in polyethylene quality demonstrated as fusion defects among the three different groups. The present study suggests that maintaining better surface roughness and roundness of the femoral heads does not always result in an in vivo reduction of polyethylene wear.  (+info)

A process for treating a chromium coating and/or the surface of a chromium alloy to increase hardness, and/or to decrease coefficient of friction; chromium alloys and/or chromium coatings with surfaces having increased hardness and/or decreased coefficient of friction; and, components comprising chromium alloys and/or chromium coatings with surfaces having increased hardness and/or decreased coefficient of friction.
Research Report on Global Cobalt Chromium Coronary Stent Market Research Report 2016. The Report includes market price, demand, trends, size, Share, Growth, Forecast, Analysis & Overview.
Hong Kong based OrbusNeich has announced the European launch of their Genous Bio-engineered Cobalt Chromium Stent, which supposedly accelerates the
Buy 30mmx40mm Chromium Alloy Steel Medium Load Die Spring Red from sourcingmap,you can get reasonable price and fast response worldwide. Please be assured all the products here are quality garanteed.
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iVascular Architect Coronary Stent is a stent made of a Cobalt Chromium alloy called L605. See IFUs for further information. Available to download.
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Both the spin- and charge-density waves of Cr alloys are produced by the Coulomb attraction between electrons and holes on nearly nested Fermi surfaces. Driven by quasi-particle transitions, transverse spin- wave and longitudinal phason modes are associated with rotational and translational symmetries of pure Cr and its dilute alloys. At low frequencies, both spin and charge phasons have a nearly linear dispersion with a mode velocity which approaches the spin-wave velocity as T approaches T{sub N} or as the mismatch between the Fermi surfaces increases.
PMID: 16752620 Purpose: This study aimed to investigate the release of nickel, copper, zinc, cadmium, magnesium, and lead from prosthodontic base metal alloys into protein-containing biologic solutions. Materials and Methods: Dissolution experiments were conducted in either 3% Dulbecco s Modified Eagle Medium or 3% bovine serum albumin solutions for 7 weeks. Results: The protein-containing dissolution solutions and dissolution time did not have a significant effect on release of elements from the alloys (Kruskal-Wallis, P > .05). Conclusions: The amount of the released elements was well below the dietary intake levels of these elements. This study is important given the widespread use of the base metal alloys and the continuing public concerns/questions regarding the health benefits/risks associated with these materials. Int J Prosthodont 2006;19:250 252 ...
This first-in-human study was designed to examine the temporal patterns of tissue healing and the proof-of-concept for restoration to a BMS. We chose 4 months post stent deployment as the first assessment point because the polymer coating is completely absorbed at ∼3 months. Repeated imaging at 6, 8, and 18 months allowed a detailed assessment of the tissue strut coverage, strut malapposition, positive remodeling, and other changes that have been associated with some of the durable polymer DES.. Our study confirmed, up to 18 months, the preliminary safety and efficacy of the cobalt chromium thin-strut MiStent SES, from which a poly lactide-co-glycolic acid polymer coating is absorbed in 45 to 60 days. Crystalline sirolimus is delivered locally in sustained, therapeutic concentrations up to 6 months, without initial burst. The small angiographic in-stent LLL at each time point, along with the low neointimal volume obstruction on IVUS, indicates stent efficacy. Of particular interest, and in ...
Global Therapeutics, the cardiology unit of Cook Medical, has receivedCE Mark approval for its new cobalt chromium bare metal coronary stent(BMS), the GTX coronary stent system, which will be availableimmediately in the European Union and the United Kingdom.
MedJ-01 Ridaforolimus Eluting Coronary Stent System is a single use device/drug combination product comprising: - A mounted Cobalt Chromium (CoCr) alloy based
CE-certified metal material for series production. For manufacturing crowns and bridges, the EOSINT M 270 processes a special cobalt chromium molybdenum-based superalloy. It is biocompatible and CE-certified for use in the dental industry (CE 0537). This established dental prosthesis material has seen considerable demand in recent years and is very cost-efficient compared to precious metal alloys. The Schwickerath bonding strength according to EN ISO 9693 using recommended VITA VM13 ceramic is 42 MPa. The amount of extractable ions released from EOS CobaltChrome SP2 laser processed according to Instructions for Use is 1.86 mg / cm2 / 7 days determined in the static immersion test according to EN ISO 10993-15.. Benefits. ...
The Carpentier-Edwards Bioprosthetic Valved Conduit (Model 4300) is made from a porcine (pig) aortic valve that has been preserved and mounted on a flexible frame. The flexible frame is composed of a corrosion resistant cobalt chromium metal alloy, silicone rubber, and is covered with polytetrafluoroethylene (PTFE) cloth. The valve is then mounted in a polyester tube. This device can be used to create an extra-cardiac pathway for blood flow in the pulmonic position. This conduit was introduced in the 1970s. ...
Announcing Perseus Open Archives Initiative Services (6 May 2002) The Perseus Project is pleased to announce the first release of its Open Archives Initiative service provider. The Perseus system harvests registered OAI repositories and incorporates the information into its search interface (http://www.perseus.tufts.edu/cgi-bin/vor). Some sample searches: - search for Shakespeare, grouped by collection. Note that not all resources have web-accessible content. http://www.perseus.tufts.edu/cgi-bin/vor?lookup=Shakespeare;group=collcat;extern=1 - search for cloning, dynamically clustered by repeated phrases. Note the different phrases associated with cloning: molecular cloning, amino acid, quantum information. http://www.perseus.tufts.edu/cgi-bin/vor?lookup=cloning;group=stcluster;extern=1 - search for Goethe, grouped by matching field. Books by Goethe are separated from information about Goethe. http://www.perseus.tufts.edu/cgi-bin/vor?lookup=Goethe;group=fieldcat;extern=1 For documents ...
Of 287 patients who otherwise met inclusion criteria, 200 (70%) either demonstrated RF or had radiographic imaging obtained at a minimum of 1 year after surgery showing lack of RF. The patients mean age was 54.8 ± 15.8 years; 81% were women; 10% were smokers; the mean body mass index (BMI) was 27.1 ± 6.5; the mean number of levels fused was 12.0 ± 3.8; and 50 patients (25%) had a pedicle subtraction osteotomy (PSO). The rod material was cobalt chromium (CC) in 53%, stainless steel (SS), in 26%, or titanium alloy (TA) in 21% of cases; the rod diameters were 5.5 mm (in 68% of cases), 6.0 mm (in 13%), or 6.35 mm (in 19%). RF occurred in 18 cases (9.0%) at a mean of 14.7 months (range 3-27 months); patients without RF had a mean follow-up of 19 months (range 12-24 months). Patients with RF were older (62.3 vs 54.1 years, p = 0.036), had greater BMI (30.6 vs 26.7, p = 0.019), had greater baseline sagittal malalignment (SVA 11.8 vs 5.0 cm, p = 0.001; PT 29.1° vs 21.9°, p = 0.016; and pelvic ...
These options allow for variability in leg size, offset and Model. Femoral heads are created of steel or ceramic product. Metallic heads, fabricated from cobalt chromium for hardness, are machined to sizing and after that polished to lower use in the socket liner. Ceramic heads tend to be more sleek than polished metal heads, have a reduced coefficient of friction than the usual cobalt chrome head, and in principle here will have on down the socket liner more slowly and gradually. As of early 2011, abide by up experiments in people havent shown major reductions in have on rates in between the various kinds of femoral heads in the marketplace. Ceramic implants are more brittle and may break following becoming implanted ...
Currently available stents were designed for straight lesions, optimised to provide scaffolding (coverage and radial strength) and ease of deliverability. In straight lesions, these stents have been shown to provide superb acute and long-term results. One lesion subset that continues to challenge the interventionalist is bifurcations lesions. A number of different strategies have been employed with standard stents to address bifurcation lesions each of which have significant limitations. Large contemporary registries characterising current stent usage in bifurcating lesions have demonstrated decreased procedural success with increased rates in restenosis and thrombosis (acute, subacute and delayed). The limitations of currently available stents have led groups to develop stents designed specifically to treat bifurcation lesions. The Tryton Side-Branch Stent Stent TM (Tryton Medical, Inc., Newton, MA, USA) is a balloon expandable cobalt chromium stent, designed specifically to treat bifurcation ...
Health,Sacramento CA (PRWEB) March 21 2013 Whether hip patients have a concern over a Stryker Hip DePuy Hip or any other hip device currently on the market or that has been recalled people who Google Cobalt Chromium Toxicity continue finding that a href http://www.Cobalt-Chromium-Toxicity.com title Cobalt Chromium Toxicity Resource Center onclick linkClick,Ongoing,Litigation,Over,Failed,DePuy,and,Stryker,Hip,Implants,Continue,Driving,Traffic,to,Number,One,Website,for,Cobalt,Chromium,Toxicity,Information,medicine,medical news today,latest medical news,medical newsletters,current medical news,latest medicine news
Copra J. D. , Elsevier Science Ltd. London: 461-488, 1999 4. Thomas P: Allergological aspects of implant biocompatibility. In: Bioceramics in hip joint replacement (eds. Wlllmann G, Zweymuller K), Thieme Stuttgart New York: 117-121, 2000. 5. : Immunologic mechanisms in hypersensitivity reactions to metal ions: an overview. Allergy. 55: 108-115, 2000. 6. : Distribution of cobalt chromium wear and corrosion products and biologic reactions. Clin. Orthop. Rel. Res. 329: S233-S243, 1996. 7. Wever D. Moloney W. , Goodmon S. , Schurmon D. , Snnith R. : Humon serum opsonizotion of orthopaedic biomoteriol particle proteinbinding and monocyte/macrophage activation In vitro. J. Biomed. Mater. Res. Willert H. , Buchhorn G. , Lohmann C. : Histopothoiogische Verdnderungen bei Metal! / Metoil-Gelenken geben Hinweise out eine zellvermittelte Uberempfindlichkelt - vorldufige Untersuchungsergebnlsse von 14 Fallen. Osteologie 9, 165-179,2000. : IL-12 as an adjuvant for cell mediated Immunity. Semin. Immunol. ...
The Modular Revision Hip Stem,Cementless hip stem revisions offering optimal version setting for each patient. Compatible with modular link ceramic or cobalt chromium femoral heads with up to 4 neck lengths, or the link saddle device.,medicine,medical supply,medical supplies,medical product
TCT 2013 presentation of data planned -. DURHAM, N.C., September 30, 2013 - Micell Technologies, Inc. today announced that a peer reviewed article discussing imaging and clinical results of the DESSOLVE I trial of its MiStent Sirolimus Eluting Absorbable Polymer Coronary Stent System (MiStent SES®) was accepted for publication on the JACC Cardiovascular Interventions website. The paper, First-in-Human Evaluation of a Bioabsorbable Polymer-Coated Sirolimus- Eluting Stent: Imaging and Clinical Results of the DESSOLVE I Trial (DES With Sirolimus and a Bioabsorbable Polymer for the Treatment of Patients With De Novo Lesion in the Native Coronary Arteries), is planned to also appear in the October 2013 issue of JACC Cardiovascular Interventions.. The article concluded that, upon 18 months follow-up, the MiStent SES - an absorbable polymer-coated, cobalt chromium, sirolimus-eluting stent - was associated with a low and stable in-stent late lumen loss, complete strut coverage, and no stent ...
The common component in both systems-and what is at the heart of the lawsuits-is the Conserve cup, which is a cast cobalt chromium molybdenum piece that holds the metal femoral head, mimicking the natural movement of a hip joint. It is that unlined cobalt part that is allegedly causing serious harmful effects to patients who receive the implant device. The problem is that these two metal components cause the release of metal particles around the hip joint and surrounding tissue. As a result, a high percentage of patients have developed metallosis and biologic toxicity and are experiencing a high and early failure rate of the device ...
Blueacre Technology can machine complex profiles to create a range of implantable devices. Our femtosecond processing capability ensures that we can cover the widest range of materials commonly used in stents, i.e. nitinol, cobalt chromium and stainless steel. Femtosecond laser technology is also ideal for machining of platinum iridium marker bands without burr. For larger implantable devices our 10 axis Swiss CNC capability adds a new dimension of processing. ...
LFI Medical offers laser-cutting services for metals in a variety of forms, including tube based, flat, and multi-axis designs. Our efficient systems are capable of cutting tightly toleranced, intricate patterns with industry best lead times for development programs through high volume production. We are able to cut a variety of materials including stainless steel, nitinol, cobalt chromium, titanium, Inconel, and platinum ...
Inclusion Criteria:. - AMI definition is accordance with the third universal definition of ESC /ACCF/ AHA/ WHF Task Force10, detection of a rise and/or fall of cardiac biomarker values [preferably cardiac troponin (cTn) I or T] with at least one value above the 99th percentile upper reference limit (URL) and with at least one of the following: Symptoms of ischemia. New or presumed new significant ST-segment-T wave (ST-T) changes or new left bundlebranch block (LBBB).. Development of pathological Q waves in the ECG. Imaging evidence of new loss of viable myocardium or new regional wall motion abnormality.. Identification of an intracoronary thrombus by angiography or autopsy Of the AMI patients who met the above definition, the criterial for inclusion is limited to STEMI patients. STEMI is defined as new ST elevation at the J point in at least 2 contiguous leads of equal or greater than2 mm (0.2 mV) in men equal or greater than1.5 mm (0.15 mV) in women in leads V2-V3 and/or of equal or greater ...
Dental Gold and Gold Alloys. Gold, the most noble of metals, seldom tarnishes or corrodes in the oral cavity. Because of the softness of pure gold, it is not indicated for use in the mouth except in the form of gold foil. Gold is frequently used in combination with other metals to produce alloys that can be used to fabricate various types of dental restorations where metal is indicated. The basic types of gold alloys used in dentistry are casting gold, gold solder, wrought gold, and gold plate. The principal metals used to combine with gold to form the alloys are silver, copper, platinum, palladium, and zinc. ADMINISTRATIVE CONTROL Controlled items subject to strict accountability and safeguarding are gold solder, platinum foil, and gold, silver, and chromium alloys. In addition, scrap from these controlled items and from amalgam are also subject to the same controls. Certain delegated members of a dental facility control these items. However, all members of the dental care system must be aware ...
Nickel Alloy 22 is a fully austenitic, nickel-chromium-molybdenum-tungsten alloy with high corrosion resistance compared to other nickel-chromium alloys
Cobalt-chromium alloy (Co-Cr) particles in the nanometre size range are produced by wear at the articulating surfaces of metal-on-metal implants, and are associated with inflammation, bone loss and implant loosening. Additionally, metal implants undergo corrosion inside the human body releasing ions into the surrounding tissue. This led to the withdrawal from the market of the DePuy ASR™ metal-on-metal hip replacements in 2010. Ions released from Co-Cr particles derived from a resurfacing implant and their subsequent cellular up-take have been measured. Moreover, the ability of the metal debris and Cobalt (Co) ions to induce apoptosis was examined. For this purpose, U937 cells and Co pre-treated U937 cells were exposed to Co, metal debris and Co + debris for 24 and 48 h. To measure metal ion concentrations in culture medium and cell lysates Inductively Coupled Plasma Mass Spectrometry (ICP-MS) analysis was performed. Apoptosis was evaluated with Fluorescence-Activated Cell Sorting (FACS) and ...
Alloy 601, a nickel-chromium alloy, provides resistance to many corrosive media and high temperature environments. The addition of aluminum enhances the…
Radial strength and low recoil are particularly important in bare-metal stents as Target Lesion Revascularization (TLR) rates are generally higher than drug-eluting stents. The Platinum Chromium Alloy combined with the REBEL customized architecture stent design allows for high radial and axial strength and the lowest stent recoil.
Stryker announced a new voluntary recall involving certain Stryker LFIT V40 cobalt-chromium femoral heads that are used in total hip replacement procedures.
Colorization by anodizing is widely spread in the medical field, but is limited to titanium and aluminum components. In that sense, ALD technology is highly innovative as it can bring color to any material such as stainless steel, nitinol, and cobalt-chromium alloys. Colorization of medical instruments and devices enables clear and reliable identification to avoid mistakes during the operating steps. This has the huge advantage of reducing the stress for clinicians and improving the safety for patients. From a commercial point of view, in our fast paced environment, colorization by ALD NanoDeCo® coatings is a powerful marketing tool to distinguish products from competitors in the same field or to address specific markets. ...
Gertrude Emma Barrett born 1868 married Walter Costar on 23rd December 1888.. The 1891 census shows Walter age 24 and a Game-keeper and Gertrude with 2 children, Lizzie age 1 and Christopher age 8 months, living at Denmans Farm, Chawley, Cumnor, Berkshire.. The 1901 census finds Gertrude, now 32, living with her parents in Tubney. So, where is Walter? He is at 5 Station Road, Stratfield Mortimer, and is a coachman and hotel groom. Children: Lizzie age 11 Christopher age 10 Gertrude age 9 Walter Henry age 6 Frederick age 5 Annie age 3 Sydney age 1. Also there is Ellen, sister-in-law age 22 and described as housemaid.. Why is Gertrude with parents and Ellen with Walter and children? A thought for investigation, which surrounds a letter from one Nellie Costar to great grandfather Harrys wife Annie (Mary Anne Chandler). because the author of the letter is one Nellie Costar, I had assumed initially that it was written by Gertrude as her married name was Costar. However, Gertrudes middle name was ...
The aim of this investigation was to describe a new adaptation of the ST2R technique as reported by Clement et al.10 for thoracic hypokyphotic AIS patients. We focused on whether the ST2R technique would improve the TK apex location and outcomes relative to a case-matched cohort treated with RR.. However, one limitation of our study is the discrepancy of rods used in the RR and ST2R maneuvers, i.e., the 5.5-mm titanium versus the 6.0-mm cobalt-chrome alloy rods, respectively. This discrepancy is primarily due to the retrospective nature of the study and the consequential change in materials used over time in our practice. As such, outcome differences between the two techniques may be in part explained by the differences in the rods applied. Nevertheless, the roles of the rods in the RR and ST2R techniques are inherently different. RR uses a single rod to support a rotational correction of the spine at the concavity side, while a second rod is placed after the correction to provide support to ...
Corning™ Costar™ Cell Culture Triangular Flasks 75cm2 Growth area; Phenolic Cap Corning™ Costar™ Cell Culture Triangular Flasks...
A total of 48 patients with lesions in coronary bifurcations were enrolled (mean age 67.9±8.9 years, 14.6% of female). There were 20.8% of patients with NSTE-ACS, 93.8% with hypertension, 35.4% with diabetes, 52.1% had previous MI, and 47.9% and 14.6% underwent prior PCI and CABG, respectively. The device success rate was 100%. The side branch was treated with an additional classical DES implantation in 18.8% of cases. The periprocedural MI (MI type 4a) was observed in two cases (4.2%). At 3 months there was one case (2.1%) of TLR. No death, MI or stent thrombosis were observed.. CONCLUSION ...
Trayser Metal Works is raising funds for Cast Metal Gaming Dice on Kickstarter! I hand craft metal gaming dice in my garage and I need your help to make these dice available to everyone.
Firebirds Finery are a set of items with a required character level of 70 and are only available in the expansion pack, Reaper of Souls. The set is comprised of six pieces of armor and a source, Firebirds Breast, Firebirds Down, Firebirds Eye, Firebirds Pinions, Firebirds Plume, Firebirds Talons, and Firebirds Tarsi. The entire set is Wizard-only, though six of the items are armor in slots that would otherwise be equippable by any class, and with stats a Witch Doctor would enjoy as well as the Wizard.
The automatic sample changer (ASC) for up to 20 samples similarly handles routine measurements in quality control as well as requirements for research and development. It works around the clock to free your time for other challenges and allows you to make optimal use of the PERSEUS® STA 449 F1/F3 even during the weekend. Of course, each sample can be assigned a different measurement and evaluation program. Easy-to-understand input fields lead you through the programming of a series of measurements. Unplanned analyses can also be inserted into a pre-programmed series of measurements already in progress. ...
Der Perseus Verlag Basel publiziert u.a. Bücher zur Anthroposophie, Geschichte und Zeitgeschichte sowie die Monatsschrift Der Europäer. Beides auf der Grundlage der Geisteswissenschaft Rudolf Steiners.
Der Perseus Verlag Basel publiziert u.a. Bücher zur Anthroposophie, Geschichte und Zeitgeschichte sowie die Monatsschrift Der Europäer. Beides auf der Grundlage der Geisteswissenschaft Rudolf Steiners.
Welcome to Vsmile zirconia, a manufacturer for dental zirconia block and CADCAM material in China. We provide dental zirconia block, CADCAM milling bur,diamond stone, PMMA, WAX, PEEK material.
Hi, I have just attained some 20 9.5J stormer range rover alloys to put on my 2006 HSE Sport. The tyres that came with are 295/45/20 will these fit ok or...
In creating cast metal and cast iron parts, when the molten metal flows into the mold, the cast metal sometimes cools and hardens with the bubbles that arose inside the molten metal intact. The bubbles in the cast metal have poor mechanical characteristics in comparison with other regions, and so will cause failures. With welding, if the crystal structure of the welding metal is non-uniform, when strain is applied to the welded parts due to heat or external forces, stress will concentrate on the non-uniform parts, leading to failures. The interior structure of the metal has an impact on its strength and durability. Multifaceted evaluations of strength characteristics and the internal structure make it easier to identify the causes of failures.. ...
Terminally ill actress Valerie Harper reunites with her co-stars from The Mary Tyler Moore Show, to tape an episode of Betty Whites hit comedy, Hot in Cleveland. (April 5)
Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.
Hello fellow Lexus owners, Sorry, Im new to this club, even though i have owned a Lexus (is200 sport 2003 - 11 years), and now a is300h f sport from last September, Ive always liked to individualize the cars that i have owned over the years, dont get me wrong , im no boy racer (hell, im 54 now!!)...
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Objective: The composition of the salivary interface (pellicle) between dental restorations and oral mucosa may be critical to the biocompatibility of the restoration. The purpose of this study was to examine the molecular composition of the salivary pellicle on nickel-chromium alloy in vivo. Method and materials: The molecular components of nickel-chromium pellicle was examined with sodium dodecyl sulfate polyacrylamide gel electrophoresis and Western blot analyses. Results: Only limited numbers of salivary proteins were found to participate in the formation of nickel-chromium pellicle in vivo. Salivary amylase and secretory immunoglobulin A were among the proteins identified in the pellicle. Conclusion: In vivo, nickel-chromium pellicle consists of selectively adsorbed salivary proteins. Because both salivary amylase and secretory immunoglobulin A are antimicrobial proteins, it is possible that they play a role in modulating the microbial flora on the nickel-chromium prosthesis ...
With three different hole sections; Also with function of cutting and holding; Precise; Wont hurt optical fiber; With safe lock
Everolimus-eluting stents (EES) represent the next generation of drug-eluting stents (DES). Important design modifications include thin strut stent backbones, less inflammatory and more biocompatible polymers, and lower drug dosing. The cobalt chromium EES fluoropolymer XIENCE V stent has been the most extensively studied of such stents. In animal models, this stent demonstrated minimal vessel inflammation, a biologically active endothelium with strut coverage similar to a bare metal stent, and inhibition of intimal hyperplasia comparable to that seen with sirolimus-eluting stents. The SPIRIT family of clinical trials demonstrated low rates of late loss, and clinical restenosis, as well as low rates of very late stent thrombosis. These excellent clinical outcomes addressed limitations of the 1st generation DES, and substantiated widespread clinical use of the EES platform.
Implantable materials or biomaterials are utilized to repair, assist or replace living tissue or organs that are functioning below an acceptable level. A wide range of metals and their alloys, polymers, ceramics and composites are used in surgically implanted medical devices and prostheses and dental materials. These are important materials that provide the best dental implantations for patients. Most implanted devices are constructed of more than one kind of materials. Since the early 1900s, metal alloys have been developed for these applications to provide improved physical and chemical properties, such as strength, durability and corrosion resistance.. Major classes of metals used in medical devices and dental materials include stainless steels, cobalt-chromium alloys and titanium (as alloys and unalloyed). In addition, dental casting alloys are based on precious metals (gold, platinum, palladium or silver), nickel and copper and may in some cases contain smaller amounts of many other ...
Many of the metallic implants used in orthopaedics are made of stainless steel or cobalt-chromium alloys which contain 18-30% chromium. Hexavalent chromium (Cr VI) has been shown to be the predominant form of chromium released following in vivo and in vitro corrosion of these metal implants (Merritt and Brown, 1995 K. Merritt and S.A. Brown, J. Biomed. Mater. Res. 29 (1995), pp. 627-633. Full Text via CrossRef , View Record in Scopus , Cited By in Scopus (67)Merritt and Brown, 1995). Blood chromium levels may be elevated between 50 and 250 times in patients with metal hip implants (Lhotka et al., 2003). At physiological pH, Cr (VI) exists predominantly as the chromate anion and as such can enter cells via non-specific anion channels. The anionic Cr (VI) diffuses readily through the red blood cell (RBC) membrane and is bound by the haemoglobin probably after its rapid reduction to the cationic trivalent state within the RBC (Gray and Sterling, 1950). The aims of this study were to investigate the ...
Definition : Hook prostheses operated by myoelectric power and designed for partial functional replacement of a missing hand. These prostheses are typically external devices made of metal (e.g., cobalt-chromium alloys), hard plastics (e.g., polyethylene), carbon fibers, or a combination of materials; they may include totally or partially implanted components (e.g., sensors, electrodes). The prostheses are usually fixed with a socket to the wrist and require some degree of customization. Myoelectric controlled hand prostheses typically incorporate small electrical motors and electrodes within the socket to pick up electrical signals that trigger hook operation as the muscles in the residual limb contract. They may be used alone as a replacement for a missing hand or as the terminal component of a below-the-elbow, above-the-elbow, or total upper limb prosthesis in patients who have congenital abnormalities or who suffered amputations due to illness (e.g., diabetes) or traumatic accidents.. Entry ...
For successful wetting, the base metal must be at least partially soluble in at least one component of the brazing alloy. The molten alloy therefore tends to attack the base metal and dissolve it, slightly changing its composition in the process. The composition change is reflected in the change of the alloys melting point and the corresponding change of fluidity. For example, some alloys dissolve both silver and copper; dissolved silver lowers their melting point and increases fluidity, copper has the opposite effect. The melting point change can be exploited. As the remelt temperature can be increased by enriching the alloy with dissolved base metal, step brazing using the same braze can be possible. Alloys that do not significantly attack the base metals are more suitable for brazing thin sections. Nonhomogenous microstructure of the braze may cause non-uniform melting and localized erosions of the base metal. Wetting of base metals can be improved by adding a suitable metal to the alloy. ...
Current location in this text. Enter a Perseus citation to go to another section or work. Full search options are on the right side and top of the page ...
Current location in this text. Enter a Perseus citation to go to another section or work. Full search options are on the right side and top of the page ...
Dissecting the markets current action, why base metals are higher, and whether there is panic in the bond market, with Jeff Kilburg, KKM Financial, and Jim Iuorio, TJM Institutional Services.
Base metals were boosted on Wednesday as equity markets headed higher, with copper rising 1.6 percent, but analysts said the sentiment remained vulnerable.
Effect of Ni addition on the microstructures of melt-spun CuCr ribbons. YU, M.; WANGI, Y.; WANG, Y.; SUN, Z. // Materials Science (0137-1339);2008, Vol. 26 Issue 3, p675 The microstructures and resistivities of melt-spun Cu75Cr25 and Cu(75-x)Cr25Nix (x = 1 or 3 wt. %) ribbons were studied. The size of the Cr-rich phase from liquid phase separation in the Cu75Cr25 microstructure can be decreased from the micrometer-scale to about 250 nm by using melt spinning.... ...
Shop online for a wide selection of Corning™ Costar™ Transwell™-COL Collagen-Coated PTFE Membrane Insert Transparent, collagen-treated...
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Rising star Shia LaBeouf was spotted indulging in a little flirtation with his co-star Megan Fox while on set of the Transformers sequel.
Safety concerns with 1st generation of bioabsorbable vascular scaffolds(BRS) have prompted the development of next generation of these devices, focused on thinner struts and faster resorption time. Recently developed, the MeRes100 (Meril Life Sciences) is a sirolimus-eluting (1.25 mg/mm2) BRS, which is built of a thin-strut (100mm) PLLA polymer with a hybrid cell design (closed cells on the edges and open cells on the center). There are couplets of tri-axial radiopaque markets at either end to facilitate scaffold positioning and post dilation. Bioresorption is expected to occur within 2 years.We sought to evaluate the performance of this device in the treatment of real-world, less selected patients. ...
My best presentation blog posts, reorganized, fixed, prettier. Buy the Kindle ebook on Amazon, or get the free PDF on my home page. ...
One time more, Pepos and RepartoCorses roads cross again, to let those beautiful images live: we are talkin about the 749/999 derived Rad 02 by Pepo Rosell from Radical Ducati Madrid, a must. Heres a tubular alloy frame replacing the 999 swingarm on Rad 02 Corsa, a beautiful approach without any gap between the same frame alloy on the bike and the swingarm. Out of ordinary the tail design, that rises in a way that makes me fool. Antislippery NCR clutch, Kservice mono, Spark exhausts, a oblique spy window on tank remembering old endurance times do the rest, and the body...so sensual to me.... A.o.C. -- Pepo can you tell me why to replace the 999 one with the tubular swing on your ultimate Rad 02? Wasnt it perhaps the state of the art on this kinda machines? P.R. -- Yes of course, naturally, but this choice gives to me more rigidness. You must know into the squared swing of motogp as well, sections are rounded tubular but hidden at sight. A.o.C. -- Pepo, what do you mean with Desmoresistencia? ...
According to Motilal Oswal, Second wave of the pandemic is a risk that applies to all cyclical assets. Industrial metals will be no exception.
Sara Ali Khan and Sushant Singh Rajput has started prepping for their Abhishek Kapoor directorial Kedarnath. The two were seen discussing the film. The image is also shared by the director, who seems happy and feels, theres magic in the air. The actors will start shooting for the film soon.
Vin Diesel shared a picture of himself and Deepika Padukone from his trip to India for the promotion of their film xXx: Return Of Xander Cage
Imagine, for a moment, standing in front of 130 strangers and answering questions about your weight.Would each of you ladies tell me which particular euphemism -- be it overweight or pleasantly
The entertainment news and gossip outlet TMZ.com has picked up the story on the firing of former The Young and the Restless star Michael Muhney (Adam
Webmonkey is right on. I am ever so thankful there is an alternative browser out there that renders so nicely and has so many useful features since I am using Linux and I dont have access to IE. Accept the fact that Firebird hasnt reached version 1.0 yet I cant find any major faults with it. Java, Flash, realplayer all work with it now on Linux. As more companies switch over to Linux desktops in the next coming years Mozilla and Firebird are poised to become the Linux browser of choice. ...
Its a juicy bunch of grapes, Nick Masons drums from Pink Floyd, the constellation of Perseus...there are so many examples that could be used to describe the Tam Tam, a new perception in the world of lamps, which extols repetitiveness by focusing on the archetypal lampshade: a number of light sources pointed in differ
J&J said it was pulling its Co-Star drug-eluting stent from overseas markets and withdrawing its U.S. application following poor results in a clinical trial.
Will & Grace actress Shelley Morrison has died and was remembered by her co-stars Megan Mullally, Debra Messing, Eric McCormack and Sean Hayes.
Theres been a lot of talk about Battlestar Galactica and its shiny metal co-stars of late, and its all coming to a head on Friday (June 12) when the 92nd street Y in Manhattan hosts a panel entitled Battlestar Galactica: Cyborgs on the Horizon. The discussion will feature several cast members from BSG as well as real live…
Hello Kitty Style--Model Ai Tominaga gets a famous co-star for her latest work featured in the December issue of Vogue Japan. A life-sized Hello Kitty poses alongside Ai in the ...
Let it be known: When Youre the Worst star Aya Cash found out her Sirens guest gig involved working with a giant python, she was more than prepared to get close-up with her scaly co-star.. Then series co-creator Bob Fisher informed her READ MORE. ...
Stories have been circulating in the press for months regarding Decs receding hair line and that of his Im a Celebrity co-star Ant McPartlin.
... when alloyed with iron and nickel creates an alloy called nichrome. Nichrome is described as being 80% nickel and 20% chromium ... "Chromite Mineral, Iron Chromium Oxide, Chromite Uses, Chromium Oxide Properties". Archived from the original on 8 January 2017 ... Stainless steel contains 18% chromium. Chromium allows for the stainless steel to be hardened and toughened. It also allows for ... which is an iron-chromium alloy.[7] Chromite grains are commonly found in large mafic igneous intrusions such as the Bushveld ...
Such metals are beryllium, chromium, magnesium, titanium, and some aluminium alloys. Fluxes for high-temperature soldering ... Magnesium alloys. A putative flux for soldering these alloys at low temperature is molten acetamide. Acetamide dissolves ... Aluminium and its alloys are difficult to solder due to the formation of the passivation layer of aluminium oxide. The flux has ... Fortunately some alloys are able to dissolve the surface oxides in their bulk when superheated by several degrees above their ...
Chromium is a highly reactive metal present in many iron alloys. Chromium may react with glass, reducing the silicon and ... Dumet-wire is a copper clad wire (about 25% of the weight of the wire is copper) with a core of nickel-iron alloy 42, an alloy ... Further reactions of chromium, forming chromium silicide dendrites, are possible. The thermal expansion coefficient of steel is ... The oxide layer formed on chromium-containing steel can seal vacuum tight to glass and the chromium strongly reacts with carbon ...
... alloying elements found in research Co-based alloys are C, Cr, W, Ni, Ti, Al, Ir, and Ta. Chromium is also used in Cobalt based ... Examples of such alloys are Hastelloy, Inconel, Waspaloy, Rene alloys, Incoloy, MP98T, TMS alloys, and CMSX single crystal ... Alloying elements found in most commercial Ni-based alloys are, C, Cr, Mo, W, Nb, Fe, Ti, Al, V, and Ta. During the formation ... The alloying elements are dissolved in the γ-phase as well. The γ'-phase hardens the alloy through an unusual mechanism called ...
The blades are made from hardened carbon or chromium steels. The hardness of the blades is generally between 54 and 58 HRC. On ... Suitable materials for the anvil are plastic, aluminum, zinc, brass, or bronze alloys. ... Stainless steel have a high corrosion resistance, due to the protective chromium oxide layer that covers the steel surface ...
Common alloy metals are manganese, nickel, molybdenum, chromium, and vanadium. Stainless steel commonly contains a minimum of ... Additional requirements are a fluxing material to remove the impurities, and alloy metals to give particular properties to the ... Other metals are commonly added to steel to produce alloy steels of various types. ... 10.5% chromium, and may also contain significant amounts of nickel or molybdenum. Slag, a byproduct of iron and steel-making ...
... is an alloy of 65% cobalt, 30% chromium, 5% molybdenum, and other substances. The alloy is used in dentistry and ... For high-temperature use in engines, particularly turbochargers, the first alloy used was Haynes Stellite No. 21, similar to ... ISBN 0-04-338041-7. Wojnar, L (2001). "Porosity structure and mechanical properties of vitalium-type alloy for implants". ... "Effect of silicon ion implantation on the properties of a cast Co-Cr-Mo alloy". Journal of Materials Science. 32 (14): 3727- ...
Type 310 310S- is a highly alloyed austenitic stainless steel used for high temperature application. The high chromium and ... Carbon steels and alloy steels are designated a four digit number, whereby the first digit indicates the main alloying element( ... The SAE steel grades system is a standard alloy numbering system (SAE J1086 - Numbering Metals and Alloys) for steel grades ... "section 2, part A:Standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure ...
18% chromium and 8% nickel austenitic stainless steel *^ Nickel-iron-chromium alloy commonly used in heating elements. ... Generally used for temper and alloy verification of aluminium. *^ Gold is commonly used in electrical contacts because it does ...
Chromium. IN: Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Chromium, Iodine, Iron, Manganese, ... Wallwork, G. R. (1976). "The oxidation of alloys". Reports on the Progress Physics. 39 (5): 401-485. Bibcode:1976RPPh...39.. ... "Chromium". Diakses tanggal 2008-08-24.. *^ a b c Dennis, J. K.; Such, T. E. (1993). "History of Chromium Plating". Nickel and ... Inggris) Chromium at The Periodic Table of Videos (University of Nottingham). *(Inggris) "Chromium". Encyclopædia Britannica. 6 ...
Taenite - iron nickel alloy. *Troilite - a variety of the iron sulfide mineral pyrrhotite. The troilite in this sample is used ... Chromite - iron magnesium chromium oxide. *Daubréelite - iron(II) chromium sulfide. *Diamond and lonsdaleite - carbon ...
18% chromium and 8% nickel austenitic stainless steel *^ Nickel-iron-chromium alloy commonly used in heating elements. ... Generally used for temper and alloy verification of aluminium. *^ Despite being less conductive than copper, gold is commonly ...
The four major alloying elements that form carbides in tool steel are: tungsten, chromium, vanadium and molybdenum. The rate of ... H1 to H19 are based on a chromium content of 5%; H20 to H39 are based on a tungsten content of 9-18% and a chromium content of ... More alloying elements are used in these steels, as compared to the water-hardening class. These alloys increase the steels' ... Individual alloys within a grade are given a number; for example: A2, O1, etc. W-group tool steel gets its name from its ...
"Nickel Alloys-Stainless Steels, Nickel Copper Alloys, Nickel Chromium Alloys, Low Expansion Alloys". Nickel-alloys.net. ... "Metglas Magnetic Alloy 2714A", Metglas". Metglas.com. Archived from the original on 2012-02-06. Retrieved 2011-11-08.. ... "Soft Magnetic Cobalt-Iron Alloys", Vacuumschmeltze" (PDF). www.vacuumschmeltze.com. Archived from the original (PDF) on 2016-05 ...
As the equivalent carbon content rises, the weldability of the alloy decreases. High-strength low-alloy steels (HSLA) were ... The effect on weldability of elements like chromium and vanadium, while not as great as carbon, is more significant than that ... The weldability of aluminium alloys varies significantly, depending on the chemical composition of the alloy used. Aluminium ... Some alloys of this type are prone to cracking and reduced corrosion resistance as well. Hot cracking is possible if the amount ...
Low alloy steel is alloyed with other elements, usually molybdenum, manganese, chromium, or nickel, in amounts of up to 10% by ... While iron alloyed with carbon is called carbon steel, alloy steel is steel to which other alloying elements have been ... Alloy steels[edit]. Stainless steels contain a minimum of 11% chromium, often combined with nickel, to resist corrosion. Some ... Common alloying elements include: manganese, nickel, chromium, molybdenum, boron, titanium, vanadium, tungsten, cobalt, and ...
453 - cromoly steel alloy. Reynolds produced only the 3 main tubes in this alloy and they were single butted, replaced by 500 ... 500 - A chromium-molybdenum (CrMo) steel, seamed, plain gauge tubeset of 3 main triangle tubes *500ATB - Mountain, All terrain ... Optima - A chromium-molybdenum (CrMo) steel, seamed, butted tubeset designed and produced exclusively for Raleigh from 1995. ... It started reaching frame builders in 2005.[6] 953 is based on a specially developed maraging steel stainless steel alloy that ...
For brazing copper, brass, nickel alloys, Monel, medium and high carbon steels and chromium alloys, cobalt alloys, tungsten ... Improves wetting of/by some alloys, can be added to Au-Ni-Cr alloy to compensate for wetting loss by chromium addition. In low ... For brazing copper, brass, nickel alloys, Monel, medium and high carbon steels chromium alloys, titanium, zirconium, hafnium. ... For brazing copper, brass, nickel alloys, Monel, medium and high carbon steels and chromium alloys. ...
... as an explanation for the electrical properties of Mn-based Heusler alloys. Some notable half-metals are chromium(IV) oxide, ... Many of the known examples of half-metals are oxides, sulfides, or Heusler alloys. In half-metals, the valence band for one ... Journal of Alloys and Compounds. 575: 301-308. doi:10.1016/j.jallcom.2013.05.171. Guezlane, M; Baaziz, H; El Haj Hassan, F; ... Charifi, Z; Djaballah, Y (2016). "Electronic, magnetic and thermal properties of Co2CrxFe1−xX (X=Al, Si) Heusler alloys: First- ...
Kanthal (Alloy 875/815), a family of iron-chromium-aluminium (FeCrAl) alloys is used in a wide range of high-temperature ... Nichrome, a non-magnetic 80/20 alloy of nickel and chromium, is the most common resistance wire for heating purposes because it ... Many elements and alloys have been used as resistance wire for special purposes. The table below lists the resistivity of some ... Other constant-resistance alloys include manganin [Cu86Mn12Ni2], Cupron [Cu53Ni44Mn3] and Evanohm. The Evanohm family of nickel ...
Some are made of other high-quality stainless steel, chromium and vanadium alloys to ensure durability of edges and freedom ...
A metal in the form of a gravy boat made from stainless steel, an alloy largely composed of iron, carbon, and chromium ... Of all the metallic alloys in use today, the alloys of iron (steel, stainless steel, cast iron, tool steel, alloy steel) make ... Shape-memory alloys. A shape-memory alloy (SMA) is an alloy that "remembers" its original shape and when deformed returns to ... High entropy alloys. High entropy alloys (HEAs) such as AlLiMgScTi are composed of equal or nearly equal quantities of five or ...
... facilitating heat-treatment of low-alloy steels. In the extreme case of austenitic stainless steel, much higher alloy content ... On the other hand, such elements as silicon, molybdenum, and chromium tend to de-stabilize austenite, raising the eutectoid ... Depending on alloy composition, a layering of ferrite and cementite, called pearlite, may form. If the rate of cooling is very ... By alloying the steel with tungsten, the carbon diffusion is slowed and the transformation to BCT allotrope occurs at lower ...
The most common type of metal alloy used for this purpose is a nickel-chromium mixture, also known as nichrome. The nichrome ... Several metal alloys are used, depending on the type of application, such as highly acidic or corrosive environments. The most ...
... with an alloy content less than or equal to 6%, are often pickled in hydrochloric or sulfuric acid. Steels with an alloy ... Rust- and acid-resistant chromium-nickel steels are pickled traditionally in a bath of hydrofluoric and nitric acid.[citation ... Hydrogen embrittlement becomes a problem for some alloys and high-carbon steels. The hydrogen from the acid reacts with the ... ISBN 978-1-4200-7219-8. Gillström, Peter (2006). Alternatives to pickling; preparation of carbon and low alloyed steel wire rod ...
However, in some low alloy steels, containing other elements like chromium and molybdenum, tempering at low temperatures may ... Several high-alloy steels are also precipitation hardening alloys. These alloys become softer than normal when quenched, and ... Most heat-treatable alloys fall into the category of precipitation hardening alloys, including alloys of aluminum, magnesium, ... When hardened alloy-steels, containing moderate amounts of these elements, are tempered, the alloy will usually soften somewhat ...
... chromium, and silver alloy "cupaloy", claiming it had the same strength as mild steel. It contained everyday items such as a ...
Filler metal alloys, such as elemental aluminium and chromium, can be lost through the electric arc from volatilization. This ... An alloy of lanthanum oxide (or lanthana) has a similar effect as cerium, and is also not radioactive.[28] ... The internal metal parts of a torch are made of hard alloys of copper or brass so it can transmit current and heat effectively ... It can be used in conjunction with pulsed current, and is used to weld a variety of alloys, including titanium, nickel, and ...
Klein replaced 6061 aluminium alloy with a new alloy called ZR 9000, that used zirconium in place of chromium; the new alloy ... Faced with limited available types of aluminum alloy tubing, the students chose to construct frames from 6061 aluminium alloy ... Aluminium alloys have a Young's modulus around a third that of steel, but with thicker tubes he was able to make a bicycle that ... Klein was a bicycle company founded by Gary Klein that pioneered the use of large diameter aluminium alloy tubes for greater ...
"Chromium and you" (PDF). Health and Safety Executive. 2013.. *^ a b "Welding, Cutting, Brazing , Environmental Health & Safety ... Zinc or nickel plating can be used instead of cadmium plating, and brazing filler alloys now rarely contain cadmium.[citation ... Other common sources are fuming silver, gold, platinum,[3] chromium[4] (from stainless steel), nickel, arsenic, manganese, ... Exposure usually arises through hot metalworking processes, such as smelting and casting of zinc alloys, welding of galvanized ...
... chromium alloys and/or chromium coatings with surfaces having increased hardness and/or decreased coefficient of friction; and ... components comprising chromium alloys and/or chromium coatings with surfaces having increased hardness and/or decreased ... A process for treating a chromium coating and/or the surface of a chromium alloy to increase hardness, and/or to decrease ... A method of forming a chromium alloy comprising a lubricious outer surface, said method comprising:. providing a chromium alloy ...
... wave and longitudinal phason modes are associated with rotational and translational symmetries of pure Cr and its dilute alloys ... and charge-density waves of Cr alloys are produced by the Coulomb attraction between electrons and holes on nearly nested Fermi ... Fishman, R.S.; Viswanath, V.S. & Liu, S.H. Spin and charge dynamics of chromium alloys, article, July 1, 1996; Tennessee. ( ... Both the spin- and charge-density waves of Cr alloys are produced by the Coulomb attraction between electrons and holes on ...
Use MacRaesBlueBook.com for accurate listings of Chromium Alloys Manufacturers in Florida. See contact details and Send a ... ALLOYS: Wear Resistant. , ALLOYS: Titanium. , ALLOYS: Steel. , ALLOYS: Non-ferrous. , ALLOYS: Monel. , ALLOYS: Master. , ALLOYS ... electronic alloys, greek... Products: Alloys: chromium; alloy20 flanges; alloys; alloys: aluminum; alloys: cadmium; alloys: ... ALLOYS: Nickel Chromium Aluminum. , TITANIUM & TITANIUM ALLOYS. , NICKEL SILVER ALLOYS. , NICKEL ALLOY. , METALS: High Purity. ...
... a nickel-chromium alloy, provides resistance to many corrosive media and high temperature environments. The addition of ... Alloy 601 Wire Description. Alloy 601, a nickel-chromium alloy, provides resistance to many corrosive media and high ... Inconel® 601 Wire (Alloy 601) UNS N06601. Download Datasheet Shaped, Flat, Square, Round, Fine Wire, Plated and Unplated AMS ... Alloy 601is non hardenable by heat treatment.. Welding. For best results refer to: SSINAs "Welding of Stainless Steels and ...
The PROMUS Element Stent features a novel platinum chromium alloy and ...,Boston,Scientific,Begins,Clinical,Trial,Enrollment,in ... "The advanced platinum chromium alloy and new balloon catheter offered in the Element Stent System represent significant ... The PROMUS Element Stent features a novel platinum chromium alloy and innovative stent design, which combine to offer greater ... The higher density platinum chromium alloy provides superior visibility while permitting thinner struts compared to prior- ...
The stent platform is laser cut from a thin cobalt chromium alloy tube and electro-polished. The design of the stent is zigzag ... Our study confirmed, up to 18 months, the preliminary safety and efficacy of the cobalt chromium thin-strut MiStent SES, from ... Conclusions At 18 months of follow-up, this absorbable polymer-coated, cobalt chromium sirolimus-eluting stent was associated ... The design of the MiStent (Micell Technologies, Durham, North Carolina), constructed from cobalt chromium, is zigzag hoops that ...
Tungsten Chromium Alloy W-Cr bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term ... About Tungsten Chromium Alloy. Tungsten Chromium is one of numerous metal alloys sold by American Elements under the trade name ... Related Applications, Forms & Industries for Tungsten Chromium Alloy. Alloys. High Purity Materials. Metallurgy. ... 24 Cr 51.996100000 Chromium See more Chromium products. Chromium (atomic symbol: Cr, atomic number: 24) is a Block D, Group 6, ...
Chromium Vanadium Alloy Cr-V bulk & research qty manufacturer. Properties, SDS, Applications, Price. Free samples program. Term ... About Chromium Vanadium Alloy. Chromium Vanadium is one of numerous metal alloys sold by American Elements under the trade name ... Customers For Chromium Vanadium Alloy Have Also Viewed. Chromium Vanadium Sputtering Target ... Related Applications, Forms & Industries for Chromium Vanadium Alloy. Alloys. High Purity Materials. Metallurgy. ...
... Khaled M. Ibrahim and Mervat M. Ibrahim ... A. F. Farah, O. R. Crnkovic, and L. C. F. Canale, "Heat treatment in high Cr white cast iron Nb alloy," Journal of Materials ... S. D. Carpenter, D. Carpenter, and J. T. H. Pearce, "XRD and electron microscope study of an as-cast 26.6% chromium white iron ... J. T. H. Pearce, "Examination of M7C3 carbides in high chromium cast irons using thin foil transmission electron microscopy," ...
17 Standard Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy Rod , rod, N06007, N06975, N06985, N06030, N08031, ... Standard Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy Rod. Active Standard ASTM B581 , Developed by ... This specification covers nickel-chromium-iron-molybdenum-copper alloy rods (UNS N06007, N06975, N06985, N06030, and N08031), ... ASTM B581-17, Standard Specification for Nickel-Chromium-Iron-Molybdenum-Copper Alloy Rod, ASTM International, West ...
... nickel enriches and chromium depletes at void surfaces during irradiation in all austenitic iron-chromium-nickel alloys. This ... in austenitic iron-chromium-nickel alloys are dependent on bulk alloy composition. In this work, the resistance to swelling ... Alloys that display the greatest amount of nickel enrichment and chromium depletion are found to be most resistant to void ... In austenitic iron-chromium-nickel alloys, the total swelling depends on the duration of the transient swelling period that ...
... , top blemish attrition and low accessory of friction, but aswell for ... Cobalt-Chromium Alloy machining low apparent roughness. 04/gen/2018 09:25:17 cobaltalloy Contatta lautore ... Tungsten alloys accommodate a safer another to lead, and their college physique aswell enables them to authority their ...
... metal compounds and metal alloys for all major universities, international and domestic manufacturing companies and corporate R ... Chromium: Although much is known about the health effects of chromium compounds, the health effects of chromium metal, Cr(0), ... Chromium 1 mg/m3 0.5 mg/m3. Engineering Controls: Ensure adequate ventilation to maintain exposures below occupational limits. ... Carcinogenicity: Chromium: NTP: Not identified as carcinogenic IARC: 3 - Not classifiable as to carcinogenicity in humans ...
Fe- 0.07C- 0.3O- 0.35wt% P- 0.35wt% Cr alloy so formed yielded coercivity as low as 0.42 Oe, resistivity as high as 21.8 μ cm ... These alloys are known for hot-shortness and are therefore not considered suitable for high temperature working. To remove this ... Attempting hot forging thereafter completely eliminates hot as well as cold shortness and thereby helps to form these alloys ... investigation deals with hot powder preform forging technique for the development of high density iron-phosphorus based alloys ...
A scheil-gulliver model with back-diffusion applied to the microsegregation of chromium in Fe-Cr-C alloys. ... Material Transaction Liquid Fraction Segregation Ratio Residual Liquid Binary Nickel Alloy These keywords were added by machine ...
... used options and get the best deals for 4-Piece Tobacco Herb Spice Grinder Herbal Alloy Smoke Metal Chromium Crusher 40R at the ... 4-Piece Tobacco Herb Spice Grinder Herbal Alloy Smoke Metal Chromium Crusher 40R ... Details about 4-Piece Tobacco Herb Spice Grinder Herbal Alloy Smoke Metal Chromium Crusher 40R. ... 4-Piece Tobacco Herb Spice Grinder Herbal Alloy Smoke Metal Chromium Crusher 40R ...
... so its time to get out your coats and Smart Chromium Alloy Resistive Fabrics. What? You dont have one? Well now you too can ... Smart Chromium Alloy Resistive Fabric: Summer time will be over soon (hopefully, thanks global warming), ... This Smart Chromium Alloy Resistive Fabric will protect you from the blistering cold by detecting if the temperature is too ... Summer time will be over soon (hopefully, thanks global warming), so its time to get out your coats and Smart Chromium Alloy ...
Resistance of nickel-chromium-aluminum alloys to cyclic oxidation at 1100 ̊and 1200 ̊C. , HathiTrust Digital Library. * Skip to ... nickel-20-percent-chromium-3-percent-silicon, and nickel-40-percent-chromium alloys / ... Resistance of nickel-chromium-aluminum alloys to cyclic oxidation at 1100 ̊and 1200 ̊C. / Charles A. Barrett and Carl E. Lowell ... Oxidation of alloys in nickel-aluminum system with third-element additions of chromium, silicon, and titanium at 1100° C ...
2017This European Standard defines the requirements for hexavalent chromium free anodizing of aluminium and aluminium alloys ... Hexavalent chromium free anodizing of aluminium and aluminium alloys - SS-EN 4827: ... Aerospace series - Hexavalent chromium free anodizing of aluminium and aluminium alloys. Status: Withdrawn · Replaced by: SS-EN ... This European Standard defines the requirements for hexavalent chromium free anodizing of aluminium and aluminium alloys for ...
... to produce an alloy with a chemical composition of Ni‐20Cr‐1.2Y2O3 (wt.%) alloy using high energy ball milling. To minimize ... High Energy Ball Milling, Nickel-Chromium Alloys, Spark Plasma Sintering (SPS), Transmission Electron Microscopy (TEM), X-Ray ... S. Pasebani et al., "Nickel-Chromium Alloys: Engineered Microstructure via Spark Plasma Sintering", Materials Science Forum, ... The results showed that addition of Ag to alloy A206 increased the mechanical properties of the alloy. However, the addition of ...
Osseointegration of surface-blasted implants made of titanium alloy and cobalt-chromium alloy in a rabbit intramedullary model ... Cobalt-chromium alloy Direct metal fabrication Osseointegration Surface treatment 3D printing This is a preview of subscription ... The purpose of this study was to determine whether such modifications on the surface of cobalt-chromium (CoCr) alloy by ... Titanium Powder Coating Using Metal 3D Printing: A Novel Coating Technology for Cobalt-Chromium Alloy Implants. ...
The element leaching is conducted upon these alloys, with the SPS alloy forming an oxide layer upon the surface that could be ... Novel processing, microstructure and properties of a cobalt-chromium-molybdenum orthopaedic alloy ... The most common cobalt based alloy (F75) used in orthopaedics is investigated and a novel route to manufacture the alloy is ... The production of the F75 alloy via spark plasma sintering has yielded an alloy with carbide free microstructures. The grains ...
Specific alloys not less than 85% chromium and nickel or cobalt, with traces of either nickel or and ... ... Specific alloys not less than 85% chromium and nickel or cobalt, with traces of either nickel or cobalt, molybdenum, and other ... CHROMIUM COBALT ALLOYS \kɹˈə͡ʊmi͡əm kˈə͡ʊbɒlt ˈalɔ͡ɪz], \kɹˈə‍ʊmi‍əm kˈə‍ʊbɒlt ˈalɔ‍ɪz], \k_ɹ_ˈəʊ_m_iə_m k_ˈəʊ_b_ɒ_l_t ˈa_l_ɔɪ_ ...
"Performance of iron-chromium-aluminum alloy surface coatings on Zircaloy 2 under high-temperature steam and normal BWR ... Title: Performance of iron-chromium-aluminum alloy surface coatings on Zircaloy 2 under high-temperature steam and normal BWR ... title = {Performance of iron-chromium-aluminum alloy surface coatings on Zircaloy 2 under high-temperature steam and normal BWR ... Publishers Accepted Manuscript: Performance of iron-chromium-aluminum alloy surface coatings on Zircaloy 2 under high- ...
... they have been reported to release at least three times more cobalt and chromium ions than metal-on-polyethylene (MoP) hip ... In Vitro Analyses of the Toxicity, Immunological, and Gene Expression Effects of Cobalt-Chromium Alloy Wear Debris and Co Ions ... In Vitro Analyses of the Toxicity, Immunological, and Gene Expression Effects of Cobalt-Chromium Alloy Wear Debris and Co Ions ... "In Vitro Analyses of the Toxicity, Immunological, and Gene Expression Effects of Cobalt-Chromium Alloy Wear Debris and Co Ions ...
The alloys consist of, by weight, about 11% to about 40% nickel (plus cobalt), about 27% to about 42% chromium, about 1% to ... hardenable alloys that are resistant to highly corrosive and abrasive slurries, especially those employed in the handling of ... Because chromium carbides account for a proportion of the total chromium content of the alloys of the invention, an alloy of a ... 4. The alloy of claim 1 wherein the chromium index (CI) as determined by the equation:. is not less than 25.. 5. The alloy of ...
A dental technician with pulmonary fibrosis: a case of chromium-cobalt alloy pneumoconiosis?. D Sherson, N Maltbaek, K Heydorn ... A dental technician with pulmonary fibrosis: a case of chromium-cobalt alloy pneumoconiosis? ... A dental technician with pulmonary fibrosis: a case of chromium-cobalt alloy pneumoconiosis? ... A dental technician with pulmonary fibrosis: a case of chromium-cobalt alloy pneumoconiosis? ...
Chromium alloyed PM steels combine excellent mechanical properties with good dimensional stability, as well as stable alloying ... costs when compared to traditional Mo/Ni alloyed material. ... Chromium Alloyed PM Steels - Cost-Effective High Performance ... Chromium alloyed PM steels combine excellent mechanical properties with good dimensional stability, as well as stable alloying ... The environmental impact of chromium material and high performance applications which utilize chromium alloyed PM steels will ...
HomeMaterials Science ForumHigh Nitrogen SteelsNitrogen Alloyed 9-12% Chromium Steels with a... ... Nitrogen Alloyed 9-12% Chromium Steels with a Mertensitic-Austenitic Microstructure p.437 ... U.E. Klotz et al., "Nitrogen Alloyed 9-12% Chromium Steels with a Mertensitic-Austenitic Microstructure", Materials Science ...
... A. Nehir zden, DDS/Nasser Haghighat, PhD/Ibtisam ... The purpose of this study was to examine the molecular composition of the salivary pellicle on nickel-chromium alloy in vivo. ... Results: Only limited numbers of salivary proteins were found to participate in the formation of nickel-chromium pellicle in ... Method and materials: The molecular components of nickel-chromium pellicle was examined with sodium dodecyl sulfate ...
... find more Nickel Chromium Alloy suppliers, wholesalers & exporter quickly visit HiSupplier.com ... China Nickel Chromium Alloy products offered by China Nickel Chromium Alloy manufacturers, ... Nickel Alloy Bar Nickel Base Alloy Nickel Alloy Wire Nickel Alloy Tubes Nickel Alloy Sheet Nickel Copper Alloy Wire Titanium ... Advanced Search Related Searches: Nickel Chromium , Nickel Alloy , Nickel Chromium Wire Mesh , Nickel Chromium Wire , Chromium ...
  • A nickel-chromium-molybdenum grade, Alloy 22 exhibits excellent resistance to both oxidising and reducing environments. (neonickel.com)
  • For manufacturing crowns and bridges, the EOSINT M 270 processes a special cobalt chromium molybdenum-based superalloy. (dmlstechnology.com)
  • The application of ALD NanoDeCo ® coatings on medical devices is compatible with a wide range of materials such as stainless steel, nitinol, cobalt-chromium alloys, titanium alloys, ceramic, plastic, and many more. (positivecoating.ch)
  • The alloying elements silicon and magnesium lead to high strength and hardness. (dmlstechnology.com)
  • The amount of extractable ions released from EOS CobaltChrome SP2 laser processed according to Instructions for Use is 1.86 mg / cm2 / 7 days determined in the static immersion test according to EN ISO 10993-15. (dmlstechnology.com)
  • Alloy 601, a nickel-chromium alloy, provides resistance to many corrosive media and high temperature environments. (ulbrich.com)
  • The addition of aluminum enhances the alloys resistance to oxidation at high temperatures. (ulbrich.com)
  • With the addition of tungsten, alloy 22 provides exceptional resistance to pitting and crevice corrosion, in oxidising acid halide environments. (neonickel.com)
  • The alloy demonstrates outstanding resistance to pitting and crevice corrosion particularly in high chloride containing environments. (neonickel.com)
  • Alloy 22 has exceptional resistance to a large range of chemical process environments, including ferric chlorides, chlorine, hot contaminated solutions, acetic acids, seawater and brine solutions. (neonickel.com)
  • This kind of precipitation-hardening nickel-chromium alloy is characterized by having good tensile, fatigue, creep and rupture strength at temperatures up to 700°C. The alloy also has outstanding corrosion resistance in various corrosive environments. (dmlstechnology.com)
  • In that sense, ALD technology is highly innovative as it can bring color to any material such as stainless steel, nitinol, and cobalt-chromium alloys. (positivecoating.ch)
  • Due to its high nickel content, Alloy 22 is immune to chloride-induced stress corrosion cracking. (neonickel.com)
  • Such alloys are commonly used in biomedical applications such as dental and medical implants (note: widely used in Europe but much less so in North America), and also for high-temperature engineering applications such as in aero engines. (dmlstechnology.com)
  • Alloy 22 is the ideal choice when considering alloys for use in extreme corrosive environments. (neonickel.com)
  • Cobalt-chromium alloy (Co-Cr) particles in the nanometre size range are produced by wear at the articulating surfaces of metal-on-metal implants, and are associated with inflammation, bone loss and implant loosening. (strath.ac.uk)
  • The Schwickerath bonding strength according to EN ISO 9693 using recommended VITA VM13 ceramic is 42 MPa. (dmlstechnology.com)
  • This established dental prosthesis material has seen considerable demand in recent years and is very cost-efficient compared to precious metal alloys. (dmlstechnology.com)
  • The flexible frame is composed of a corrosion resistant cobalt chromium metal alloy, silicone rubber, and is covered with polytetrafluoroethylene (PTFE) cloth. (drsureshbhagia.com)
  • Both the spin- and charge-density waves of Cr alloys are produced by the Coulomb attraction between electrons and holes on nearly nested Fermi surfaces. (unt.edu)
  • AlSi10Mg is a typical casting alloy with good casting properties and is used for cast parts with thin walls and complex geometry. (dmlstechnology.com)
  • The alloy also features good dynamic properties and is therefore used for parts subject to high loads. (dmlstechnology.com)
  • High tensile strength chromium molybdenum alloy steel. (hostedpayload.com)
  • A wrought cobalt-chromium-molybdenum alloy for surgical implants. (mit.edu)
  • Molybdenum alloy ABC Ti Metal offer and supply molybdenum alloy including Molybdenum copper, TZM alloy, Molybdenum lanthanum in the form of plate, sheet, tube, wire, boat, crucible and fabricated parts. (burrillandco.com)
  • This specification covers nickel-iron chromium-molybdenum alloy (UNS N08320) rod for use in general corrosive service. (building.govt.nz)
  • This invention relates to ferrous metal alloys which are superior to stainless steels and nickel-chromium alloys under conditions where both abrasion and corrosionof the metal may occur, especially in wet-process phosphoric acid plant reactors. (patentgenius.com)
  • Stainless steels and nickel-chromium corrosion resistant alloys have been used for phosphoric acid reactor equipment. (patentgenius.com)
  • Chromium alloyed PM steels combine excellent mechanical properties with good dimensional stability, as well as stable alloying costs when compared to traditional Mo/Ni alloyed material. (hoganas.com)
  • The environmental impact of chromium material and high performance applications which utilize chromium alloyed PM steels will also be described. (hoganas.com)
  • Home Materials Science Forum High Nitrogen Steels Nitrogen Alloyed 9-12% Chromium Steels with a. (scientific.net)
  • Thermodynamic evaluation of the reducing and carburizing activities of N-2-based lean sintering atmospheres containing CO, H-2, and small amounts of hydrocarbons with their total content not exceeding 5vol% was performed with regard to sintering of chromium alloyed PM steels. (chalmers.se)
  • The results obtained suggest that the proposed lean CO and H-2 containing sintering atmosphere compositions are promising candidates for robust sintering of chromium alloyed PM steels. (chalmers.se)
  • Our group of 13%Cr alloys are martensitic stainless steels suitable for applications involving CO2 rich environments. (tenaris.com)
  • Alloy steels are broken down into two groups: low alloy steels and high alloy steels. (wikipedia.org)
  • [1] [2] Most commonly, the phrase "alloy steel" refers to low-alloy steels. (wikipedia.org)
  • The simplest steels are iron (Fe) alloyed with carbon (C) (about 0.1% to 1%, depending on type). (wikipedia.org)
  • However, the term "alloy steel" is the standard term referring to steels with other alloying elements added deliberately in addition to the carbon. (wikipedia.org)
  • General: Carbon steels are regarded as steels containing not more than 0,5% manganese and 0,5% silicon, all other steels being regarded as alloy steels. (engineersedge.com)
  • The magnitudes of both void swelling and radiation-induced segregation (RIS) in austenitic iron-chromium-nickel alloys are dependent on bulk alloy composition. (astm.org)
  • powder was mechanically milled with Y 2 O 3 nanopowder (30‐40 nm powder size) to produce an alloy with a chemical composition of Ni‐20Cr‐1.2Y 2 O 3 (wt. (scientific.net)
  • The purpose of this study was to examine the molecular composition of the salivary pellicle on nickel-chromium alloy in vivo. (quintpub.com)
  • Air-formed surface oxide films on four types of Co-Cr- alloys were characterized using X-ray photoelectron spectroscopy (XPS) and five types of Co-Cr alloys were anodically polarized, to identify the effects of the addition of N, Mo, and W to Co-Cr alloys containing high Cr on the surface composition and corrosion resistance. (go.jp)
  • The Co-Cr alloys essentially have high localized corrosion resistance that is not easily affected by a small change of composition. (go.jp)
  • Without a full appreciation of the alloy composition and the level of heat treatment that it has been subjected to, it may be difficult to select an appropriate pretreatment sequence. (scirp.org)
  • Cr alloys were synthesised via gas atomisation to study the effect of rapid cooling on the microstructure and phase composition of Raney type catalyst precursor powders. (whiterose.ac.uk)
  • The present invention relates to an iron base hard facing alloy exhibiting good wear properties, resistance to PbO corrosion, and oxidation resistance in a relatively low cost composition. (google.de)
  • R. J. Chung, X. Tang, D. Y. Li, B. Hinckley, and K. Dolman, "Effects of titanium addition on microstructure and wear resistance of hypereutectic high chromium cast iron Fe-25wt. (hindawi.com)
  • Home Materials Science Forum THERMEC 2013 Nickel-Chromium Alloys: Engineered Microstructure. (scientific.net)
  • The atomized Mg97Zn1Y2 alloy particles were entirely spherical in shape and dendrite microstructure. (scientific.net)
  • Cobalt-based alloys are one of the best bearing surface materials used in hip replacement, however, a better understanding of the microstructure and mechanical properties is required to enhance its properties and also the need for new fabrication techniques to be explored to develop materials that can reduce the number of revision surgeries. (bl.uk)
  • The hardness has been attributed to the formation of oxide phases within the microstructure and chromium and molybdenum rich phases that act as solid solution hardeners. (bl.uk)
  • The oxide in the microstructure is identified as chromium oxide formed by a redox reaction between cobalt oxide found on the surface of cobalt particles and chromium. (bl.uk)
  • Effect of cooling rate and chromium doping on the microstructure of Al-25 at. (whiterose.ac.uk)
  • It was found that an appropriate heat treatment provides the largest improvement in the cast Ni-Si alloys' microstructure. (mst.edu)
  • The alloys consist of, by weight, about 11% to about 40% nickel (plus cobalt), about 27% to about 42% chromium, about 1% to about 4% copper, about 3% to about 4.5% silicon, about 0.7% to about 2% carbon, about 0.3% to about 3% manganese, up to about 4.5% molybdenum, and the balance essentially iron plus the usual minor impurities. (patentgenius.com)
  • Carbon, molybdenum, copper, nickel and chromium prealloyed and/or admixed with iron promote its hardenability. (hoganas.com)
  • Tenaris provides 13% Chromium grades and Corrosion Resistant Alloys (CRA) for oil and gas operations in highly corrosive environments where carbon pipe cannot be used. (tenaris.com)
  • The Department of Commerce (the Department) determines that certain carbon and alloy steel cut-to-length plate (CTL plate) from Belgium is being, or is likely to be, sold in the United States at less than fair value (LTFV). (federalregister.gov)
  • The type of carbide that chromium forms depends on the amount of carbon and other types of alloying elements present. (wikipedia.org)
  • 4. The alloys of claims 1 or 2 further having up to 0.1 weight percent carbon to improve creep rupture strength. (google.co.uk)
  • The element leaching is conducted upon these alloys, with the SPS alloy forming an oxide layer upon the surface that could be beneficial for limiting ion leaching and for tribological performance. (bl.uk)
  • The surface oxide film on the Co-Cr alloys consisted of oxide species of Co, Cr, Mo, W and/or Ni contains a large amount of OH − with a thickness of 2.6-3.2 nm. (go.jp)
  • W was enriched in the case of Co-20Cr-15W-10Ni but depleted in the case of Co-33Cr-9W-0.3N. On the other hand, Cr, Mo, W and Ni were enriched and Co was depleted in the substrate alloy just under the surface oxide film in the polished alloy. (go.jp)
  • Although the complex compositions of different nickel-base alloys generally prohibit us to single out some specific alloy constituent having a major impact on alloy corrosion rate, a higher chromium content is often thought to be beneficial to forming a more protective oxide film against corrosion attack. (diva-portal.org)
  • Chromite is a mineral that is an iron chromium oxide . (wikipedia.org)
  • The lead (II) salt of chromium (VI) oxide gives a vivid yellow. (scienceblogs.com)
  • Various commercial alloys with different doping levels were tested by electrochemical techniques in two different milieus based on the Fusayama artificial saliva and an electrolyte containing NaCl. (uzh.ch)
  • In addition, many of these commercial alloys have a high melting point and require the use of special casting equipment. (patents.com)
  • The pitting- and general- corrosion characteristics are comparable with nominally equivalent bulk commercial alloys and are superior to those of pure iron. (cdc.gov)
  • Abstract: Mg97Zn1Y2 alloy powders were prepared from gas atomization process, followed by consolidation using spark plasma sintering (SPS) process. (scientific.net)
  • We supply Corrosion Resistant Alloys through our alliances with Sandvik and PCC Energy Group. (tenaris.com)
  • A new generation of Co-Cr alloys enriched with precious metals (Au, Pt, Ru) have now appeared on the market. (uzh.ch)
  • The goal of this study was to clarify the effect of the precious metals additions on the corrosion behaviour of such alloys. (uzh.ch)
  • The results show that the presence of precious metals can deteriorate the corrosion behaviour of Co-Cr alloys in a significant way. (uzh.ch)
  • A Ni-Cr based alloy not containing precious metals has been developed for prosthetic dentistry uses. (patents.com)
  • The present invention relates to the development of an alloy for dental prostheses which does not contain precious metals, such as gold, silver or platinum. (patents.com)
  • In dentistry, alloys containing precious metals (gold, silver, platinum, palladium) are used all over the world for making dental prostheses. (patents.com)
  • In recent years, therefore, research has been concentrated on the development of equivalent alloys not containing precious metals. (patents.com)
  • Available in 0.045 in.Â- dia on 33 lb wire baskets, Stoody® 625-T1C is designed for all-position welding of Alloy 625 and dissimilar metals using 100% CO2 shielding gas. (thomasnet.com)
  • However, the Stellite alloys are expensive materials due to their high content of expensive metals such as cobalt, nickel and tungsten. (google.de)
  • Chromium Free Nickel Alloys for Hot Sulfuric and Sulfur Environments," Proceedings of the 138th TMS Annual Meeting and Exhibition (2009, San Francisco, CA) , vol. 2, pp. 189-196, Minerals, Metals and Materials Society (TMS), Feb 2009. (mst.edu)
  • Basically, useful high temperature titanium alloys must at least outperform those metals they are to replace in some respects, and equal them in all other respects. (google.co.uk)
  • 4] M.K. Lee, J.J. Park, C.K. Rhee, Synthesis and structural properties of Ni-20Cr-2Y2O3 nanocomposite alloy by a very high energy mechanical milling, Mater. (scientific.net)
  • By using tailor made alloying system different amount of martensite and as a consequence different mechanical properties are obtained after sintering. (hoganas.com)
  • Given that the beneficial mechanical properties of Co-Cr alloys have already been established, this type of alloy may be a suitable alternative for use in the manufacture of fixed dental prostheses. (ovid.com)
  • This study aimed to determine the microstructural and mechanical properties of a nickel- based alloy, after the casting process. (bvsalud.org)
  • Alloy steel is steel that is alloyed with a variety of elements in total amounts between 1.0% and 50% by weight to improve its mechanical properties . (wikipedia.org)
  • This specification covers nickel-iron-chromiummolybdenum-copper alloy (UNS N08825 and UNS N08221) in the form of hot-finished and cold-drawn rounds, squares, hexagons, and rectangles. (astm.org)
  • This specification covers the requirements for unfinished cobalt-28chromium-6molybdenum (UNS R30075) investment product alloy castings for surgical implant applications, and casting alloys of the same in the form of shot, bar, or ingots to be used in the manufacture of surgical implants. (superalloysteel.com)
  • This European Standard defines the requirements for hexavalent chromium free anodizing of aluminium and aluminium alloys for corrosion protection, bonding and painting. (sis.se)
  • Hexavalent and trivalent chromium were applied to pre-treated Al 1050 and Al 6061 following electroless nickel deposition, and plating performance was assessed by surface and corrosion techniques, while durability was measured by scratch, adhesion and hardness tests. (scirp.org)
  • Variants of hexavalent and trivalent chromium plating will be applied to pre-treated Al 1050 and Al 6061 following electroless nickel deposition and then characterised by surface analysis techniques. (scirp.org)
  • Due to severe health and environmental (HS&E) concerns, the use of hexavalent chromium [Cr(VI)] was virtually banned, 1 resulting in the acceptance and use of more environmentally-friendly, trivalent chromium [Cr(III)]-based passivates as a viable option. (pfonline.com)
  • Cast and forged titanium alloys suited for use at temperatures over 600 C. are based on TiAl gamma phase structure. (google.co.uk)
  • The present invention relates to titanium alloys usable at high temperatures, particularly those of the TiAl gamma phase type. (google.co.uk)
  • Titanium alloys have found wide use in gas turbines in recent years because of their combination of high strength and low density, but generally, their use has been limited to below 600 C. by inadequate strength and oxidation properties. (google.co.uk)
  • While major work was performed in the 1950's and 1960's on lightweight titanium alloys for higher temperature use, none have proved suitable for engineering application. (google.co.uk)
  • To be useful at higher temperatures, titanium alloys need the proper combination of properties. (google.co.uk)
  • It is seen that prior titanium alloys had inferior properties to nickel alloys. (google.co.uk)
  • The precipitation and transformation of secondary carbides in a high chromium cast iron," Materials Characterization , vol. 56, no. 1, pp. 73-78, 2006. (hindawi.com)
  • J. T. H. Pearce, "Examination of M 7 C 3 carbides in high chromium cast irons using thin foil transmission electron microscopy," Journal of Materials Science Letters , vol. 2, no. 8, pp. 428-432, 1983. (hindawi.com)
  • Such alloys have been hardened by cold working, phase transformation of the metallic matrix, precipitation of hard carbides, orprecipitation of other hard phases including borides, silicides and sigma phase. (patentgenius.com)
  • As many as 30,000 workers in the United States of America are exposed to cemented tungsten carbides (CTC), alloys composed primarily of tungsten carbide and cobalt, which are used in cutting tools. (cdc.gov)
  • SelectWear 60HC can be utilized in hot wear applications up to 1,100°F. Metal-to-earth wear welding wire is designed to deposit alloy composed of high-density of primary chromium carbides in iron matrix. (thomasnet.com)
  • [4] The alloying elements tend to form either solid solutions or compounds or carbides. (wikipedia.org)
  • SiO 2 , but will also form carbides in the form of (Fe,Mn) 3 C. Chromium forms partitions between the ferrite and carbide phases in steel, forming (Fe,Cr 3 )C, Cr 7 C 3 , and Cr 23 C 6 . (wikipedia.org)
  • In austenitic iron-chromium-nickel alloys, the total swelling depends on the duration of the transient swelling period that precedes steady-state swelling. (astm.org)
  • Because the diffusivity of nickel via the vacancy flux is slow relative to chromium, nickel enriches and chromium depletes at void surfaces during irradiation in all austenitic iron-chromium-nickel alloys. (astm.org)
  • P. Aungsnpatoon, S. Inthidech, P. Sricharoenchai, and Y. Matsubara, "Subcritical heat treatment behaviour of hypereutectic high chromium cast iron with molybdenum," in Proceedings of the 10th Asian Foundry Congress (AFC '10) , pp. 203-208, Nagoya, Japan, 2008. (hindawi.com)
  • The present investigation deals with hot powder preform forging technique for the development of high density iron-phosphorus based alloys. (scirp.org)
  • Invar 32 Wire Super-Invar 32-5 rod UNS-K-93500, Consisting of 32% Nickel, 5% Cobalt, and the balance Iron, this alloy exhibits minimum thermal expansion (one half of Invar 36) at room temperature. (superalloysteel.com)
  • A low expansion alloy consisting of 32% Nickel, 5% Cobalt, balance Iron. (superalloysteel.com)
  • Alloy 36 Sheet (Invar) / K93603 / ASTM F1684 Widely known under several trades names such as Invar and Nilo 36**, this grade is a 36% nickel-iron alloy. (superalloysteel.com)
  • Alloy 46 wire : Consisting of 46% nickel and iron balance, 46 Alloy is a controlled expansion alloy used mostly in electronic applications, especially for glass and ceramic seals. (superalloysteel.com)
  • Surface alloys were fabricated by implantation of 25 key nickel ions into polycrystalline iron to doses ranging from 8.5 X 1015 to 3.4 X 1016 ions/cm2. (cdc.gov)
  • [6] Chromite today is mined particularly to make stainless steel through the production of ferrochrome (FeCr), which is an iron-chromium alloy. (wikipedia.org)
  • The reaction between these gases and the solid chromite grains results in the reduction of the chromite and allows for the formation of iron and chromium alloys . (wikipedia.org)
  • degassing the metal before its sealing is therefore important, especially for nickel and iron and their alloys. (wikipedia.org)
  • Because of the ferromagnetic properties of iron , some steel alloys find important applications where their responses to magnetism are very important, including in electric motors and in transformers . (wikipedia.org)
  • EDS tests showed that the matrix is rich in nickel and chromium, the interdendritic second phase is rich in molybdenum and the precipitates in titanium or silicon. (bvsalud.org)
  • Once you have secured your chromium wire, test it out with your batteries. (instructables.com)
  • Now, whenever our relay is powered, the energy from the batteries will flow into our chromium wire. (instructables.com)
  • We can manufacture nickel chromium wire in a variety of shapes to suit the needs of your project or distribution. (arcorelectronics.com)
  • Lets us know and we'll be happy to work with you to find the right nickel chromium wire for your purpose! (arcorelectronics.com)
  • Nickel chromium wire finds use in many explosive and firework application, often as a bridgewire for electrical ignition systems. (arcorelectronics.com)
  • Not sure what is the best alloy for your nichrome wire applications? (arcorelectronics.com)
  • Inconel 600 Wire ASTM B166 , Inconel 600 welding wire Alloy 600. (superalloysteel.com)
  • Low alloy wire, operating with shielding gas blend of 70%-80% argon and balance of CO2, creates welds withÂ- tensile strength of 93,000 psi and yield strength of 80,000 psi. (thomasnet.com)
  • Co-20Cr-15W-10Ni (ASTM F90), Co-30Cr-6Mo, Co-33Cr-5Mo-0.3N, and Co-33Cr-9W-0.3N were employed for XPS and the above four alloys and another Co-30Cr-6Mo (ASTM F75) were employed for anodic polarization. (go.jp)
  • Measurements of corrosion potential and anodic polarization were performed on the alloys, and the specimen surfaces were examined by using scanning electron microscopy. (ovid.com)
  • Anodic polarization behavior of Fe-Ni alloys fabricated by ion implantation. (cdc.gov)
  • The SPS alloy had higher hardness, which resulted in the lowest wear rate and friction coefficient, with lower amounts of chromium and molybdenum detected from the wear debris compared to the F75 and F1537 alloys. (bl.uk)
  • These grains are seen to crystallize from the liquid of a meteorite body where there are low amounts of chromium and oxygen. (wikipedia.org)
  • The most common cobalt based alloy (F75) used in orthopaedics is investigated and a novel route to manufacture the alloy is conducted. (bl.uk)
  • The high strength copper nickel zinc alloy is a national patented product independently developed by Powerway Alloy with independent intellectual property rights. (hannovermesse.de)
  • material made from zinc alloy, with good quality. (ebay.co.uk)
  • Material: Zinc Alloy. (ebay.co.uk)
  • Therefore, a new generation of passivate systems for zinc and zinc alloy applications is required. (pfonline.com)
  • Powerway Alloy is leading the trade of new copper alloy materials in China and keeping forward on the research and development road. (hannovermesse.de)
  • Powerway Alloy is one of the primary units for researching, developing and manufacturing high performance copper alloy materials in China. (hannovermesse.de)
  • Suhua Copper Alloy Co., Ltd. (made-in-china.com)
  • Innovations : Copper Alloy Molds: Why Didn't Someone Tell Me Sooner? (copper.org)
  • With the support of the Copper Development Association (CDA), along with some copper alloy producers, steps have been taken to prove what previously only made common sense. (copper.org)
  • 11. The heat exchanger in accordance with claim 8, wherein the collecting tubes and/or plates consist as comprising of an aluminum alloy with less than 0.15 wt. (freepatentsonline.com)
  • The wear debris size and size distribution generated from the SPS alloy were very small and the shape was more spherical. (bl.uk)
  • Grant, M.H. In Vitro Analyses of the Toxicity, Immunological, and Gene Expression Effects of Cobalt-Chromium Alloy Wear Debris and Co Ions Derived from Metal-on-Metal Hip Implants. (mdpi.com)
  • In the annealed alloy up to 1100°C there is an increase in hardness and carbide content. (bl.uk)
  • Utilisation of the sinter-hardening process in combination with tailor made alloying system gives a unique combination of strength, toughness and hardness. (hoganas.com)
  • We are the best Manufacturer & Supplier of Zinc Alloys for our valuable clients in Mumbai, Maharashtra, India. (tradeindia.com)
  • Tkachenko S, Datskevich O, Kulak L, Jacobson S, Engqvist H, Persson C. Wear and friction properties of experimental Ti-Si-Zr alloys for biomedical applications. (springer.com)
  • By increasing the conventional sintering temperature of 1120 ºC to a higher temperature of 1250 ºC, the properties of chromium materials can be developed further. (hoganas.com)
  • In this study, some chromium alloyed materials will be presented and the properties achieved after conventional sintering at both 1120 ºC and 1250 ºC are discussed. (hoganas.com)
  • The growing demand for chromium coated aluminium components especially for the automotive industry is due to their favourable physical properties (density, strength to weight ratio etc. (scirp.org)
  • Alloying elements are added to achieve certain properties in the material. (wikipedia.org)
  • Tungsten alloys accommodate a safer another to lead, and their college physique aswell enables them to authority their appearance better, even beneath acute conditions. (comunicati.net)
  • The combination with the sinter-hardening process makes chromium material even more competitive. (hoganas.com)
  • Jinno T, Goldberg VM, Davy D, Stevenson S. Osseointegration of surface-blasted implants made of titanium alloy and cobalt-chromium alloy in a rabbit intramedullary model. (springer.com)
  • D. Sharma, K. Chandra and P. Misra, "Effect of Chromium on Magnetic Characteristics of Powder Processed Fe-0.35wt%P Alloy," Journal of Minerals and Materials Characterization and Engineering , Vol. 10 No. 7, 2011, pp. 617-624. (scirp.org)
  • The purpose of this study was to determine whether such modifications on the surface of cobalt-chromium (CoCr) alloy by titanium powder coating using DMF improves the osseointegration ability of CoCr alloy. (springer.com)
  • The alloy powder of the invention has competitive high performance as used for forming a contact surface of engine valves, and can save considerably the cost of the preparation of the facings of engine valves. (google.de)
  • In general, the alloy powder of the present invention is useful wherever a high performance alloy is required for use at high temperature and under corrosive conditions. (google.de)
  • Disclosed are alloys having weight percent compositions of 31-36 aluminum, 0-4 vanadium, balance titanium (in atomic percent, about: 45-50Al, 0-3V, bal Ti). (google.co.uk)
  • 1. A cast and forged titanium alloy with ductility at room temperature and good high temperature strength, consisting essentially of by weight percent 31-36 aluminum, 0.1-4 vanadium, balance titanium (in atomic percent, about: 45-50Al, 0.1V, bal Ti). (google.co.uk)
  • 2. A cast and forged titanium alloy with ductility at room temperature and good high temperature strength, consisting essentially of by weight percent 34-36 aluminum, 0.7-2.0 vanadium, balance titanium (in atomic percent, about: 48-50Al, 0.5-1.5V, bal Ti). (google.co.uk)
  • Shanghai Tankii Alloy Material Co., Ltd. (made-in-china.com)
  • The alloy is a welding "consumable" -- the material that melts under the welder's torch to fill the gap between parts that are being joined. (scienceblog.com)
  • 14. The filtering device of claim 1 , further comprising a bismuth alloy connector material disposed adjacent the distal end of the proximal portion and the proximal end of the distal portion. (google.ca)