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| Number | Title | Issue Date |
| 7384445 | Sintered metal parts and method for the manufacturing thereof The invention concerns a sintered metal part which has a densified surface and sintered density of at least 7.35 g/cm3 and a core structure distinguished by a pore structure obtained by single pressing to at least 7.35 g/cm3 and single sinterin... | 06/10/2008 |
| 7309466 | 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. ... | 12/18/2007 |
| 7300488 | Powder metal composition and method for producing components thereof The present invention concerns a powder metal composition for producing powder metal components comprising a Co-based pre-alloyed powder, with irregularly shaped particles comprising at least 15% by weight Cr and less than 0.3% by weight C, admixed with graphite. | 11/27/2007 |
| 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 |
| 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 |
| 7108830 | Apparatus and 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... | 09/19/2006 |
| 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 |
| 6958084 | Sintered cobalt-based alloys A sintered material and a method for the production thereof is described. The material comprises an alloy selected from one of the groups having a composition comprising in weight %: either Cr 5-30/Mo 0-15/Ni 0-25/W 0-15/C 0-5/Si 0-5/Fe 0-5/Mn 0-5/others 10 max/Co b... | 10/25/2005 |
| 6669898 | Preparation of articles using metal injection molding A process for preparation of molded articles, such as golf club heads, by metal injection molding and the resulting product.... | 12/30/2003 |
| 6630009 | Metallic filled pastes A paste composition, including a binding agent charged with metallic powder, to be used in a solid freeform fabrication procedure, comprising: a) a solidifiable binding agent comprised of at least one polymerizable resin, with a viscosity of less than 4000... | 10/07/2003 |
| 6547550 | Apparatus for hot vacuum extrusion of ceramics This specification discloses a method and apparatus for forming and extruding ceramic materials. The apparatus utilizes a vacuum chamber mounted within a heating chamber or element; and the ceramic forming chamber is mounted within the vacuum chamber. A p... | 04/15/2003 |
| 6506338 | Processing of iron aluminides by pressureless sintering of elemental iron and aluminum A pressureless sintering process for producing FeAl wherein the heating rate is controlled in a manner which minimizes expansion of a mixture of elemental powders of iron and aluminum. During the process, the heating rate is maintained below 1° C./min to... | 01/14/2003 |
| 6475428 | Method of producing titanium powder A method of producing high purity, low oxygen content titanium powder utilizes a hydrided titanium powder crushed to desired percentage of particles of not more than a desired size. These hydrided particles are dehydrided by a slow heating process under p... | 11/05/2002 |
| 6464934 | Method for manufacturing a rare earth element--iron--boron permanent magnet In a method for manufacturing a permanent magnet, a powder of a magnetic base alloy and powders of at least two binder alloys are mixed. The magnetic base alloy has a general formula SE2 T14 B, wherein SE is at least one rare earth e... | 10/15/2002 |
| 6428744 | Sliding contact material, sliding contact element and producing method There are disclosed copper-base and/or iron-base contact materials which contain a Pb intermetallic compound dispersedly precipitated therein and which have highly improved sliding properties. Double layered contact elements improved in oil impregnation a... | 08/06/2002 |
| 6375705 | Oxide-dispersion strengthening of porous powder metalurgy parts Oxide dispersion strengthening of porous metal articles includes the incorporation of dispersoids of metallic oxides in elemental metal powder particles. Porous metal articles, such as filters, are fabricated using conventional techniques (extrusion, cast... | 04/23/2002 |
| 6368551 | Method for preparation of sintered permanent magnet The method for preparation of sintered permanent magnets according to the present invention comprises the steps of: mixing fully fine powder of a crystalline mother alloy for permanent magnet containing a rare-earth element, Fe and B as the essential comp... | 04/09/2002 |
| 6332906 | Aluminum-silicon alloy formed from a metal powder Aluminum-silicon alloys having high stiffness are used in forming computer memory disks and actuator arms. Disks formed with the alloy have low flutter and can be spun at 12,000 RPM or greater with a flutter of 10 Å or less.... | 12/25/2001 |
| 6299831 | High performance Cu/Cr sputter targets for semiconductor application A method is provided for fabricating Cu/Cr sputter targets having a density of at least about 90% of theoretical density and an oxygen content of less than about 1000 ppm. According to the principles of the present invention, Cu and Cr powders, each havin... | 10/09/2001 |
| 6042780 | Method for manufacturing high performance components A method for producing high performance components by the consolidation of powdered materials under conditions of hot isostatic pressure. The method uses the inclusion of reactive materials mixed into pressure-transmitting mold materials and into the powd... | 03/28/2000 |
| 6038461 | Plastically deformable high temperature superconductive material and method of manufacturing formed body thereof There are disclosed a high temperature superconductive material which can be plastically deformed, processed optionally into predetermined configurations and industrially mass produced and a method of manufacturing a formed body of the high temperature su... | 03/14/2000 |
| 6033789 | High speed cutting tool The tool includes at least one cutting edge formed by a compacted mixture of carbide containing alloy steel and an oxide containing ceramic material, preferably zirconium oxide in an amount of 0.01-15 wt % of the mixture, preferably in the region of 1 to ... | 03/07/2000 |
| 6024914 | Process for production of anode for solid electrolytic capacitor Conventional anodes for solid electrolytic capacitor have small numbers of spaces and gaps therein and, when made into a capacitor, have shown insufficient (high) tan d and ESR. An anode having enlarged numbers of spaces and gaps and giving a capacitor of... | 02/15/2000 |
| 5993506 | Plate-crystalline tungsten carbide-containing hard alloy, composition for forming plate-crystalline tungsten carbide and process for preparing said hard alloy Disclosed are a plate-crystalline tungsten carbide-containing hard alloy which comprises 4 to 40% by volume of a binder phase containing at least one of iron group metals selected from Co, Ni and Fe as a main component; and the balance of a hard phase com... | 11/30/1999 |
| 5980820 | Ball linear guide and manufacturing method thereof A ball linear guide includes a ball-cyclic-running path composed of a loaded ball groove and a non-loaded ball groove, wherein said ball linear guide main body is of a single structure including: a dovetail groove having at both ends thereof an inlet and ... | 11/09/1999 |
| 5976459 | Method for compacting high alloy tool steel particles A method for producing compacted, fully dense articles from atomized tool steel alloy particles by placing the particles in an evacuated, deformable container, and isostatically pressing the particles at an elevated temperature to produce a precompact hav... | 11/02/1999 |
| 5960249 | Method of forming high-temperature components and components formed thereby A method for forming an exterior surface of a high-temperature component, such as a blade or vane of a gas turbine engine. The method entails forming a shell by a powder metallurgy technique that yields an airfoil whose composition can be readily tailored... | 09/28/1999 |
| 5930583 | Method for forming titanium alloys by powder metallurgy This invention relates to a method for forming a titanium alloy by powder metallurgy, which comprises the processes of mixing uniformly a powder of titanium or an alloy thereof with a low-melting point metal or alloy powder, injecting the mixture into a p... | 07/27/1999 |
| 5849244 | Method for vacuum loading A method and apparatus for loading tool steel and high speed steel powder to a deformable mold for compacting is disclosed. The particles are exposed to a uniform vacuum during transfer from a sealed container through a sealed conduit and into a sealed de... | 12/15/1998 |
| 5761593 | Process for making a cemented carbide with binder phase enriched surface zone A cemented carbide insert with improved toughness and resistance against plastic deformation containing WC and cubic phases of carbide and/or carbonitride in a binder phase based on Co and/or Ni with a binder phase enriched surface zone is disclosed. The ... | 06/02/1998 |
| 5758253 | Sintered titanium-graphite composite and method of making A process for producing sintered titanium-graphite having improved wear resistance and low frictional characteristics is described. The said process which produces titanium-graphite composites having a triphasic structure with controlled porosity and a gr... | 05/26/1998 |
| 5733427 | Sputtering target and method of manufacturing the same A sputtering target formed of a refractory metallic silicide having a composition MSix including a mixture composition of an MSi2 phase in the form of particles (M: at least one refractory metal selected from a group consisting of W,... | 03/31/1998 |
| 5722037 | Process for producing Ti/TiC composite by hydrocarbon gas and Ti powder reaction There is provided a process for producing titanium composite, comprising the steps of: molding titanium powder, titanium alloy powder, or powder comprising titanium into a certain shape by a cold isostatic press or cold press; reacting the shape with hydr... | 02/24/1998 |
| 5714700 | High strength self-lubricating composite material for high temperature and production method of the same This invention provides a self-lubricating composite material which has excellent strength and oxidation resistnce at a high temperature and can be used in air and in vacuum, and a production method thereof, the composite material is a Cu--Ni--Sn type com... | 02/03/1998 |
| 5666636 | Process for preparing sintered titanium nitride cermets The present invention provides a process for preparing titanium nitride sintered masses having no residual pores and consisting of TiN solid solution particles and Ni solid solution matrix, in which a granulated powder of the following composition: TiN-pM... | 09/09/1997 |
| 5649279 | Cemented carbide with binder phase enriched surface zone There is disclosed a new process for binder phase enrichment. The process combines binder phase enrichment by dissolution of cubic phase with the requirements that cause formation of stratified layers, resulting in a unique structure. The new structure is... | 07/15/1997 |
| 5640666 | Composite silicide/silicon carbide mechanical alloy A method of producing a composite powder by providing particles of (I) tungsten, niobium, zirconium, titanium or mixtures thereof, (II) silicon and (III) carbon in a proportion relative to each other so as to possess an overall chemical composition in tha... | 06/17/1997 |
| 5637816 | Metal matrix composite of an iron aluminide and ceramic particles and method thereof A metal matrix composite comprising an iron aluminide binder phase and a ceramic particulate phase such as titanium diboride, zirconium diboride, titanium carbide and tungsten carbide is made by heating a mixture of iron aluminide powder and particulates ... | 06/10/1997 |
| 5623725 | Process for producing very pure platinum materials, semi-finished parts and foils dispersion-reinforced with Y203 Process for producing very pure platinum materials dispersion-reinforced with Y2 O3 and having high strength and extensibility, even in the temperature range >800° C., from platinum powder by mechanical alloying, which comprises the... | 04/22/1997 |
| 5580516 | Powders and products of tantalum, niobium and their alloys A powder of tantalum, niobium, or an alloy thereof, having an oxygen content less than about 300 ppm, and the production thereof without exposure to a temperature greater than about 0.7 TH. A powder metallurgy formed product of tantalum, niobiu... | 12/03/1996 |
