41
Dennis G Dreyer, Edward M Foley, Herbert E Rogers Jr: Power metallurgy compacts and products of high performance alloys. Cabot Corporation, Jack Schuman, Joseph J Phillips, December 12, 1978: US04129444 (29 worldwide citation)

A powder metallurgy compact and a sintered product is provided from high performance alloys difficult to compact and/or sinter. The green compact comprises a mixture of the alloy powder, which, as a result of blending and extruding is coated with a film of a solid organic binder, and consolidated to ...


42
Benjamin John Stanwood: Dispersion strengthened electrical heating alloys by powder metallurgy. The International Nickel Company, December 11, 1973: US3778249 (29 worldwide citation)

This invention relates to the powder metallurgy of wrought, dispersion strengthened, electrical heating elements characterized metallographically by a uniform distribution of dispersoids in both the longitudinal and transverse directions, and also to a powder metallurgy method for producing the same ...


43
Uwe Mühlberger, Wolfram Angerer, Stefan Koll, Andreas Lange: Stator module for an electric motor. Voith Turbo & Co KG, Ohlandt Greeley Ruggiero & Perle, April 2, 2002: US06365999 (28 worldwide citation)

The invention relates to a stator module for an electric motor, especially an electric motor with transverse flux, comprising at least one stator unit that consists of at least one armature winding and which, when mounted, is associated with a rotor, whereby an interferric space is created in a radi ...


44
Richard A Amato, Andrew P Woodfield, Michael F X Gigliotti Jr, John R Hughes, Lee C Perocchi: Method for developing enhanced texture in titanium alloys, and articles made thereby. General Electric Company, Jerome C Squillaro, Carmen Santa Maria, December 24, 1991: US05074907 (28 worldwide citation)

Enhanced crystallographic texture is developed in an alpha or alpha-beta titanium alloy having a dispersion of particles therein, by heating the alloy to essentially the all beta phase range and mechanically hot working the alloy in this range. The mechanical working is preferably accomplished by ex ...


45
Dietmar Seyferth, Pawel Czubarow: Method for preparation of a functionally gradient material. Massachusetts Institute of Technology, Florence Fusco McCann, October 3, 1995: US05455000 (27 worldwide citation)

The invention provides a method for in-situ powder metallurgy processing of a functionally gradient material (FGM) which uses a preceramic polymer binder system with the metal and/or ceramic powders used to produce the intermediate layers of the composite. The invention also provides a method for co ...


46
John Blachford: Lubricants for powdered metals, and powdered metal compositions containing said lubricants. H L Blachford, Bacon & Thomas, August 15, 1978: US04106932 (27 worldwide citation)

Discrete pressure-rupturable microcapsules for lubrication in powder metallurgy are disclosed comprising a core and a solid shell surrounding said core; the core comprises an organic liquid lubricant able to wet powdered metals, the shell comprises a thin non-atmospherically degradable polymeric mat ...


47
Darryl Dean Amick: Method for manufacturing tungsten-based materials and articles by mechanical alloying. Kolisch Hartwell Dickinson McCormack & Heuser, June 19, 2001: US06248150 (26 worldwide citation)

A method of producing a high-density article is presented comprising selecting one or more primary tungsten-containing constituents with densities greater than 10.0 g/cc and one or more secondary constituents with densities less than 10.0 g/cc, co-milling the mixture of constituents in a high-energy ...


48
Kawakami Naohisa, Sakai Kenji, Kurimoto Satoru, Inaba Takashi, Yamamoto Koichi, Shibayama Takayuki: Copper sliding bearing alloy. Daido Metal Co, April 11, 2001: GB2355016-A (26 worldwide citation)

A copper alloy comprises 0.5-15 mass % tin, 1-20 mass % bismuth and 0.1-10 volume % hard particles having an average size of 1-45 m. The bismuth exists as a bismuth phase dispersed through the alloy. The hard particles may comprise one or more of borides, silicides, oxides, nitrides, carbides and/or ...


49
Prabhat Kumar: Low oxygen refractory metal powder for powder metallurgy. Jerry Cohen, Perkins Smith & Cohen, July 17, 2001: US06261337 (26 worldwide citation)

One step process for producing formed Ta/Nb powder metallurgy products using Ta and/or Nb hydride powders with an oxygen content greater than a target level, e.g., 300 ppm, heating the metal hydride in the presence of another metal having a higher affinity for oxygen, removing the other metal and an ...


50
Darryl D Amick: Tungsten-containing firearm slug. Kolisch Hartwell P C, February 21, 2006: US07000547 (25 worldwide citation)

Firearm slugs formed from a non-toxic lead substitute that includes tungsten. In some embodiments, the firearm slug is formed with a recessed back portion, thus shifting an increased percentage of the slug's net mass toward the front of the slug. In some embodiments, the firearm slug is formed with ...



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