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| Number | Title | Issue Date |
| 8168117 | Method to improve stability of burn-resistant titanium alloy A powder metallurgy method includes the steps of forming a member, such as a work piece or an aerospace component, from a titanium alloy powder. The average size of a carbide phase in the titanium alloy powder is controlled in order to control an average size of a c... | 05/01/2012 |
| 7871562 | Manufacturing process for thin films made of metal /ceramic composite Process for manufacturing composite metal/ceramic thin films, consisting of: a) preparing a suspension (S) in an organic solvent starting from a substantially homogenous mixture of ceramic reinforcements, metallic particles, a bind... | 01/18/2011 |
| 7807099 | Method for forming earth-boring tools comprising silicon carbide composite materials Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of silicon carbide particles dispersed throughout a matrix material, such as, for example, an aluminum or aluminum-based alloy. In some embodi... | 10/05/2010 |
| 7718116 | Forged carburized powder metal part and method A method for obtaining a selectively non-carburized powdered metal part. The steps include compacting, sintering, removing, forging and cooling. A metal powder is compacted to form a preform having at least one first surface in which a forged part is required to hav... | 05/18/2010 |
| 7585456 | Manufacturing process for thin films made of metal/ceramic composite The invention concerns a method for making thin films in metal/ceramic composite, characterized in that it consists in: a) preparing a suspension (S) in an organic solvent from a substantially homogeneous mixture of ceramic reinforcements of metal particles, a binde... | 09/08/2009 |
| 7569179 | Functionally graded cemented tungsten carbide The present invention is a method for producing functionally graded materials that contain a hard phase that is embedded in a metal matrix phase. The material have a continuous gradient of a matrix metal phase. An example of these types of materials include function... | 08/04/2009 |
| 7537726 | Method of producing a hard metal component with a graduated structure A component is produced by powder metallurgy from hard metal. The alloy includes at least one grain growth-inhibiting additive from the group consisting of V, Cr, Ti, Ta and Nb with, at least locally, a graduated concentration profile. As a result, the mechanical pr... | 05/26/2009 |
| 7435377 | Weldable ultrahard materials and associated methods of manufacture A weldable ultrahard insert can include an ultrahard working layer and a weldable metal layer metallically bonded with the working layer. The ultrahard working layer can be any ultrahard material such as PCD, PCBN, metal carbide, ceramic, diamond, or the like. The w... | 10/14/2008 |
| 7435376 | Composites and method for manufacturing same A composite of a metal matrix with one or more incorporated secondary phases is referred to as a metal matrix composite (MMC). Secondary phase refers to all the particles or fibers which have a different composition than the metal matrix, and which are incorporated ... | 10/14/2008 |
| 7387658 | Method of making a cemented carbide powder mixture and the resulting cemented carbide powder mixture A method of making cemented carbide at which powders forming hard constituents and powders forming binder phase are wet milled together with a pressing agent is disclosed. The slurry is dried, preferably by spray drying, compacted into bodies of desired shape and si... | 06/17/2008 |
| 7364692 | Metal matrix composite material with high thermal conductivity and low coefficient of thermal expansion Metal-matrix composites with combinations of physical and mechanical properties desirable for specific applications can be obtained by varying and controlling selected parameters in the material formation processes, particularly by increasing the microstructural hom... | 04/29/2008 |
| 7332122 | Ti(C,N)-(Ti,Nb,W)(C,N)-Co alloy for milling cutting tool applications A titanium based carbonitride alloy containing Ti, Nb, W, C, N and Co. The alloy also contains, in addition to Ti, 9-14 at % Co with only impurity levels of Ni and Fe, 1- | 02/19/2008 |
| 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 |
| 7311873 | Process of direct powder rolling of blended titanium alloys, titanium matrix composites, and titanium aluminides The invention relates to manufacturing of fully dense strips, plates, sheets, and foils from titanium alloys, titanium metal matrix composites, titanium aluminides, and flat multilayer composites of said materials by direct powder rolling of blended powders followed... | 12/25/2007 |
| 7303724 | Composite metallic materials and structures and methods of making the same A composite material and method of making the same are disclosed. An example method for fabricating a composite material forms a core layer between opposing outer layers. The core layer includes a mixture of at least one metallic powder and at least one expanding ag... | 12/04/2007 |
| 7250069 | High-strength, high-toughness matrix bit bodies A new composition for forming a matrix body which includes spherical sintered tungsten carbide and an infiltration binder including one or more metals or alloys is disclosed. In some embodiments, the composition may include a Group VIIIB metal selected from one of N... | 07/31/2007 |
| 7244318 | Method for preparation of permanent magnet A blended powder including a first powder containing an R2T14B phase as a main phase, and a second powder containing an R2T17 phase at 25 wt % or more of the whole is prepared. Herein, R is at least one element selected fr... | 07/17/2007 |
| 7238219 | Grain growth inhibitor for superfine materials A superfine material made by incorporation of an inorganic polymer precursor of a grain growth inhibitor into intermediates useful for the production of superfine materials. The precursor/nanostructured material composite is optionally heat treated at a temperature ... | 07/03/2007 |
| 7235211 | Rotary cone bit with functionally-engineered composite inserts A rotary cone bit, having a functionally-engineered surface of this invention, comprises a bit body having at least one leg extending therefrom, and a cone that is rotatably disposed on the leg. The cone typically comprises a plurality of cutting elements that proje... | 06/26/2007 |
| 7235140 | Method for cleaning tissue processing molds The present invention is directed to a cleaning system and methods for cleaning tissue embedding molds. The cleaning system includes a cleaning vessel that holds a cleaning solution. The tissue processing molds are supported by a basket receptacle which is placed in... | 06/26/2007 |
| 7220480 | Cemented carbide and method of making the same A cemented carbide including WC, a binder phase based on Co, Ni or Fe, and gamma phase, in which said gamma phase has an average grain size | 05/22/2007 |
| 7192637 | Coated cutting tool for turning of steel A cutting tool insert includes a cemented carbide substrate and a coating. The cemented carbide substrate comprises WC, 4–7 wt % cobalt, 6–9 wt % cubic carbide forming metals from the groups IVB and VB, preferably titanium, tantalum and niobium, with a binder ph... | 03/20/2007 |
| 7186288 | Method for fabricating high purity, high density metal matrix composite materials and the product thereof A method of production of large Ingots of neutron attenuating composites using a vacuum-bellows system allows for large cross-sectional shapes to be extruded and rolled. This method uses a vacuum-bellows technology which allows the manufacturing of large 8–16 inch... | 03/06/2007 |
| 7179505 | Manufacturing method of MoSi-SiC nanocomposite coating The embodiments of the invention relate to a MoSi2-SiC nanocomposite coating layer formed on surfaces of refractory metals such as Mo, Nb, Ta, W and their alloys. The MoSi2-SiC nanocomposite coating layer is manufactured by forming a molybdenum... | 02/20/2007 |
| 7169347 | Making a molding tool A die comprises metal-rich sections which form an inner wall and an outer wall of the die, respectively. Gradient sections are disposed adjacent to the metal-rich sections, respectively. Further, a ceramics-rich section is disposed between the gradient sections. A p... | 01/30/2007 |
| 7169208 | Method and composition for dispersing extra-fine nickel powder A composition for use with alloys including extra-fine nickel powder dispersed with a hydrophobic inorganic dispersant which is preferably high-purity silica treated with hexamethyldisilazane (fumed silica). The composition breaks and prevents the agglomeration of t... | 01/30/2007 |
| 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 |
| 7153339 | Powder metallurgical compositions and methods for making the same Metallurgical powder compositions of the present invention include an iron based powder combined with a master alloy powder, as a mechanical property enhancing powder. The addition of master alloy powders has been found to enhance the mechanical properties of the fi... | 12/26/2006 |
| 7147939 | Coated carbide tap A coated carbide tap comprises a substrate consisting of tungsten carbide cemented with 12 to 16% by weight cobalt with additions of small amounts of transition metal carbides added to restrain grain growth, and may also contain low levels of impurities that might b... | 12/12/2006 |
| 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 |
| 7087202 | Particulate reinforced aluminum composites, their components and the near net shape forming process of the components This invention concerns particulate reinforced Al-based composites, and the near net shape forming process of their components. The average size of the reinforced particle in the invented composites is 0.1–3.5 μm and the volume percentage is 10–40%, and a good ... | 08/08/2006 |
| 7078112 | Mechanical fuse and production method for the same A mechanical fuse has further improved and stabilized fatigue limit ratio, and can obtain high reliability under a using condition in which cyclic loading is applied. The mechanical fuse includes a Fe-based sintered alloy that has at least one element of P at 0.15 t... | 07/18/2006 |
| 7074247 | Method of making a composite abrasive compact There is provided a method of making a composite abrasive compact which comprises an abrasive compact bonded to a substrate. The abrasive compact will generally be a diamond compact and the substrate will generally be a cemented carbide substrate. The composite abra... | 07/11/2006 |
| 6960319 | Tungsten alloys for penetrator application and method of making the same Disclosed is a flow-softening tungsten alloy having the general formula: W100-pAiBjCkDe wherein W is tungsten; A is one or more elements selected from the ... | 11/01/2005 |
| 6951579 | Sintered alloy for valve seats, valve seat and manufacturing method thereof A sintered alloy for valve seats is comprised of carbon at 1 to 2 percent by weight, chromium at 3.5 to 4.7 percent by weight, molybdenum at 4.5 to 6.5 percent by weight, tungsten at 5.2 to 7.0 percent by weight, vanadium at 1.5 to 3.2 percent by weight, and the rem... | 10/04/2005 |
| 6946096 | Use of powder metal sintering/diffusion bonding to enable applying silicon carbide or rhenium alloys to face seal rotors A method for making aerospace face seal rotors reinforced by rhenium metal, alloy, or composite in combination with silicon carbide or other ceramic. The resulting rotor also is disclosed. Ceramic grains, preferably silicon carbide (SiC), are mixed with powdered met... | 09/20/2005 |
| 6935917 | Discharge surface treating electrode and production method thereof In an electrode for electric discharge surface treatment used in electric discharge surface treatment for forming a hard coating on the surface of a treated material through the energy by generating electric discharge between the electrode and the treated material, ... | 08/30/2005 |
| 6929851 | Coated substrate Method for removing a portion of the binder phase from the surface of a substrate that is composed of particles of at least a first phase joined together by the binder phase, and wherein the surface is etched by contacting it with a gas flow of an etchant gas and a ... | 08/16/2005 |
| 6921422 | Ductile binder phase for use with A1MgB14 and other hard materials This invention relates to a ductile binder phase for use with AlMgB14 and other hard materials. The ductile binder phase, a cobalt-manganese alloy, is used in appropriate quantities to tailor good hardness and reasonable fracture toughness for hard materi... | 07/26/2005 |
| 6918943 | Machining tool and method of producing the same A machining surface of a machining tool such as a drill is composed of a metal-rich section. A ceramics-rich section is formed centrally in the drill. Further, a gradient section is provided between the ceramics-rich section and the metal-rich section. In the gradie... | 07/19/2005 |
