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| Number | Title | Issue Date |
| 8083831 | Lightweight, anti-scratch and fracture resistant material for use in the manufacture of jewelry The present invention relates to a lightweight, anti-scratch and fracture resistant material for use in manufacture of jewelry prepared by sintering a powered mixture consisting essentially of 20% by weight of titanium carbide, 25% by weight of tungsten carbide, 35%... | 12/27/2011 |
| 7572313 | Ternary carbide and nitride composites having tribological applications and methods of making same A turbomachinery component includes a substrate having a surface, the surface consisting essentially of at least one composite of at least one metal and at least one compound having the chemical formula Mn+1AXn, wherein M is at least one early ... | 08/11/2009 |
| 7326273 | Multi-element ceramic powder and method for preparation thereof, and sintered compact and method for preparation thereof After an alloy powder including W, Cr, at least one of Ti, Zr, and Hf, and at least one of V, Nb, and Ta is produced, the alloy powder, a powdery carbon material, and a catalyst are heat-treated in the presence of a nitrogen gas. The alloy powder is carbonitrided in... | 02/05/2008 |
| 7311875 | High density stainless steel products and method for the preparation thereof The invention concerns a method of preparing products having a sintered density of above 7.3 g/cm3. This method comprises the steps of subjecting a water-atomised, stainless steel powder to HVC compaction with an uniaxial pressure movement with a ram spee... | 12/25/2007 |
| 7303722 | Method of making tools or components The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection molding or extrusion. According to the invention, the binder system comprises 30-70 wt % poly(ethylene-co-vinylacetate) and ba... | 12/04/2007 |
| 7285241 | Method of manufacturing hard material components The present invention relates to a method of making a sintered body comprising one or more hard constituents in a binder phase by injection molding or extrusion. According to the invention, the granulating agent during drying is an ethylene oxide polymer and the bin... | 10/23/2007 |
| 7244519 | PVD coated ruthenium featured cutting tools The present invention relates to the PVD coated tungsten carbide (WC) based cemented cutting inserts with ruthenium (Ru) as a key chemical element, or a key feature, in the cobalt (Co)-based binder phase, particularly useful for machining today's mold & die material... | 07/17/2007 |
| 7241327 | Iron-based sintered alloy with dispersed hard particles An iron-based sintered alloy having improved thermal and mechanical strength is provided. The iron-based sintered alloy with dispersed hard particles comprises: a matrix comprising, by weight, 0.4 to 2% silicon (Si), 2 to 12% nickel (Ni), 3 to 12% molybdenum (Mo), 0... | 07/10/2007 |
| 7211338 | Hard, ductile coating system The invention provides hard, ductile coatings comprising a ductile bonding layer of zirconium or titanium alloyed with a precious metal and a hard, surface layer comprising at least one compound selected from the group consisting of zirconium nitride, titanium nitri... | 05/01/2007 |
| 7196356 | Submount and semiconductor device The present invention provides a submount that allows a semiconductor light-emitting element to be attached with a high bonding strength. A submount 3 is equipped with a substrate 3 and a solder layer 8 formed on a primary surface 4 | 03/27/2007 |
| 7179319 | Fine grained sintered cemented carbide, process for manufacturing and use thereof The invention proposes a fine grained sintered cemented carbide containing chromium and based on WC and a binder based on Co or CoNiFe, and having at least one additional phase comprising at least one carbide or mixed carbide of tantalum. For improving the high-temp... | 02/20/2007 |
| 7163657 | Cemented carbide body containing zirconium and niobium and method of making the same A sintered cemented carbide body (e.g., a cutting tool) and a method of making the same. The sintered cemented carbide body includes tungsten carbide, a binder phase of at least one metal of the iron group or an alloy thereof, and one or more solid solution phases. ... | 01/16/2007 |
| 7144440 | Hard particle, wear-resistant iron-base sintered alloy, method of manufacturing the same, and a valve seat A hard particle having improved adhesion to a base material, a wear-resistant iron-base sintered alloy, a method of manufacturing the same, and a valve seat are provided. The hard particle comprises 20% to 70% Mo by mass, 0.2% to 3% C by mass, 1% to 15% Mn by mass, ... | 12/05/2006 |
| 7097685 | Cemented carbide, coated cemented carbide member and production processes of the same A cemented carbide comprises a binder phase consisting essentially of an iron family metal, a first hard phase consisting essentially of WC having a hexagonal crystal structure, and a second hard phase consisting essentially of one or more types of a compound of a m... | 08/29/2006 |
| 7076972 | Tungsten carbide-based annular jewelry article Wear resistant jewelry apparatus and method of making same wherein articles of jewelry are made from sinterable metal and/or ceramic powder materials compressed into a predetermined configuration and then sintered to form a blank from which a jewelry item may be mad... | 07/18/2006 |
| 7074253 | Advanced erosion resistant carbide cermets with superior high temperature corrosion resistance Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MxCy, is dispersed in a metal binder phase. In MxCy M is ... | 07/11/2006 |
| 7032314 | Methods of making tungsten carbide-based annular jewelry rings Wear resistant jewelry apparatus and methods of making the same wherein articles of jewelry are made from sinterable metal and/or ceramic powder materials compressed into a predetermined configuration and then sintered to form a blank from which a jewelry item may b... | 04/25/2006 |
| 6993842 | Methods and jewelry articles comprising sintered tungsten carbide System, apparatus, and method for making composite articles including jewelry rings. Jewelry items such as finger rings, bracelets, earrings, body jewelry, and the like, are examples of such articles. Medical, dental, and industrial devices or components are other e... | 02/07/2006 |
| 6878181 | Cemented carbide for oil and gas applications with toughness factor A cemented carbide with excellent properties for oil and gas applications regarding resistance to the combined erosion and corrosion synergistic effects at temperatures between −50 and 300° C. and toughness. This object has been achieved with a cemented carbide c... | 04/12/2005 |
| 6875716 | Carbonaceous refractory and method for preparing the same A carbonaceous refractory material is produced by adding an organic binder to a mixture containing a carbonaceous material comprising a carbonaceous raw material comprising calcined anthracite, calcined coke, artificial graphite or natural graphite or a mixture ther... | 04/05/2005 |
| 6872234 | Cutting member The cutting member comprises WC, two or more solid solutions of WC and compounds selected from carbides, nitrides and carbonitrides of metals of the groups 4a, 5a and 6a in the Periodic Table, and at least one metal of the iron group; and at least one of the two or ... | 03/29/2005 |
| 6844281 | Reinforcement preform for metal matrix composites A preform for use in a metal matrix composite, particularly for a magnesium metal composite. In the preform the reinforcing material typically is silicon carbide, boron nitride, titanium nitride, carbon or graphite. The binder used in the preform is sintered magnesi... | 01/18/2005 |
| 6797369 | Cemented carbide and cutting tool There is provided a cemented carbide comprising a hard phase component which comprises a tungsten carbide (WC) and at least one selected from carbides, nitrides and carbonitrides of metals of the groups 4a, 5a and 6a in the periodic table; and a binder phase compone... | 09/28/2004 |
| 6761750 | Cemented carbide with binder phase enriched surface zone A cutting tool insert has a cemented carbide substrate and a coating. The cemented carbide substrate includes 73-93 wt % WC, 4-12 wt % binder phase, and cubic carbide phase with a binder phase enriched surface zone essentially free of cubic carbide phase. The cubic ... | 07/13/2004 |
| 6413293 | Method of making ultrafine wc-co alloys The present invention relates to a method of making ultrafine WC--Co alloys from a well dispersed mixture of fine and non-agglomerated WC and Co powders, wherein the Co powders have a narrow grain size distribution wherein at least 80% of the grains have ... | 07/02/2002 |
| 6387552 | TiCN-based cermet A TiCN-based cermet comprises 5-25 weight % of a binder phase mainly composed of Co and/or Ni, the balance being substantially a hard phase and inevitable impurities, the hard phase being mainly composed of carbide, nitride and/or carbonitride and contain... | 05/14/2002 |
| 6375707 | Point ball for ball point pens There is disclosed a cemented carbide containing tungsten carbide, titanium carbide, nickel, molybdenum and chromium. The composition of the materials provides a good resistance to corrosion as well as high hardness and wear resistance. These properties a... | 04/23/2002 |
| 6299658 | Cemented carbide, manufacturing method thereof and cemented carbide tool In a cemented carbide, at least one compound 3 including a carbide, a nitride or carbo-nitride of at least one component selected from IVa, Va and VIa group elements or a solid solution thereof exists in at least some WC crystal grains 1. Preferably the c... | 10/09/2001 |
| 6261329 | Diamond sintered body having high strength and high wear resistance, and tool including the same A diamond sintered body having high wear resistance, chipping resistance, shock resistance and thermal conductivity is provided. The diamond sintered body includes sintered diamond particles and a sintering aid as the remainder. The content of the sintere... | 07/17/2001 |
| 6214079 | Triphasic composite and method for making same A method for fabricating a triphasic composite such as a WC/Co/diamond composite with a high volume fraction of diamond in a WC/Co matrix. The method involves sintering of a WC/Co powder compact to develop a porous preform, which displays some rigidity an... | 04/10/2001 |
| 6124040 | Composite and process for the production thereof The invention concerns composites substantially consisting of: a cermet material having a binder metal phase of between 5 and 30 mass % and the remainder comprising at least one carbon nitride phase; or a hard metal with a hard material phase of between 7... | 09/26/2000 |
| 6086980 | Metal working drill/endmill blank and its method of manufacture A cemented carbide drill/endmill blank and method of manufacture thereof wherein the drill/endmill includes a core and a surrounding tube with improved technological properties. The difference in Co-content between the core and tube is 1-10 wt-% units and... | 07/11/2000 |
| 5865912 | SiC-reinforced aluminum alloy composite material Described herein is an SiC-reinforced aluminum alloy composite material of the type having silicon carbide uniformly dispersed in an aluminum alloy matrix containing magnesium as a strengthening element, characterized in that the composite material contai... | 02/02/1999 |
| 5808214 | Powder-produced material having wear-resistance Since a powder-produced material comprises cerium fluoride, it can exhibit good wear-resistance. The cerium fluoride content may be set in the range of from 0.1 to 22% by weight, in particular, in the range of from 0.1 to 10.0% by weight, based on the tot... | 09/15/1998 |
| 5789686 | Composite cermet articles and method of making Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets furt... | 08/04/1998 |
| 5754935 | Vane material and process for preparing same The present invention provides a vane material having an excellent scuffing resistance in a compressor employing an alternative Freon gas as a cooling medium and a process for the preparation thereof. In accordance with the present invention, a vane mater... | 05/19/1998 |
| 5670726 | Cermet and method of producing it In order to improve the toughness characteristics of a cermet alloy, while retaining high resistance to wear, a composition is disclosed which contains 30 to 60% by weight of Ti, 5 to 20% by weight of W, 5 to 15% by weight of Ta, in which up to 70% of the... | 09/23/1997 |
| 5593474 | Composite cemented carbide A composite material is disclosed along with the method of making the same. The material comprises a tough grade of cemented carbide granule dispersed with a hard brittle grade of cemented carbide granules to form a matrix. The quantity of hard, brittle c... | 01/14/1997 |
| 5500289 | Tungsten-based cemented carbide powder mix and cemented carbide products made therefrom A sinterable powder mix for the production of a tungsten-based cemented carbide material, said powder mix comprising at least 70% by weight of WC, from about 2 to about 15% by weight of an iron group metal binder, and optionally up to about 15% by weight ... | 03/19/1996 |
| 5482670 | Cemented carbide This invention consists of two parts: "Cemented Carbide with Minimal Amount of Binder Metal", and "Nonmagnetic cemented Carbide". The "Cemented Carbide with Minimal Amount of Binder Metal" is for cemented carbide bodies which are made from less than 2% binder ... | 01/09/1996 |
