Matches 101 - 150 out of 311 < 1 2 3 4 5 6 7 >
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5266414 Solid solution matrix cathode  
An impregnated thermionic cathode includes a porous matrix of sintered tungsten-alloy particles containing less than six percent iridium and/or other platinum-group metal. The pores of the matrix...
5256183 Process for production of reinforced composite materials and products thereof  
Particle reinforced composite material produced by mixing granules of a composite material formed by rapidly solidifying a melt comprising a based light metal matrix and particles of a non-metallic...
5238886 Surface bonding of ceramic bodies  
Ceramic bodies are bonded together via a layer of an oxidation reaction product of a molten metal, which metal is present in one or both of the ceramic bodies prior to bonding. At least one of the...
5238507 Magnetic material  
A magnetic material is provided which includes a discrete phase including grains made of a first substance which comprises a magnetic metal; and a continuous phase including a thin coating film...
5225381 Vacuum switch contact material and method of manufacturing it  
A vacuum switch contact material consists essentially of a mixture of Cu and Cr x O y (x=1 to 2, y=0 to 3) wherein Cr x O y is in a particulate state, the center part of the particles consists...
5217583 Composite electrode for electrochemical processing and method for using the same in an electrolytic process for producing metallic aluminum  
A dimensionally stable combustion synthesis product of a composition containing at least 20% by weight of a particulate combustible material; at least 15% by weight of a particulate filler material...
5209772 Dispersion strengthened alloy  
A dispersion-strengthened (DS) alloy, more particularly oxide-dispersion-strengthened (ODS) iron-based alloys which manifest resistant to oxidation at temperatures as high as 1300° C. (approx....
5198187 Methods for production of surface coated niobium reinforcements for intermetallic matrix composites  
An improved method of forming a composite body of a metal, intermetallic or ceramic matrix reinforced with niobium filaments, particles, platelets or mixtures thereof, the method comprising...
5174953 Method of making composite sintered artifact  
A method is disclosed of making a sintered composite unitary artifact having an alpha-alumina component fast with a metal component. Particulate alpha-alumina and a glass-forming additive are mixed...
5173107 Composite hard metal body and process for its production  
The invention relates to a composite hard metal body of hard material, a binder and embedded reinforcing material, as well as to a process for the production of the composite hard metal body by...
5143540 Densification of ceramic-metal composites  
Substantially dense, void-free ceramic-metal composites are prepared from components characterized by chemical incompatibility and non-wetting behavior. The composites have a final chemistry...
5120350 Fused yttria reinforced metal matrix composites and method  
A reinforced metal composite comprised of a mixture of fused yttria and a metal matrix selected from the group consisting of Ti, Nb, Fe, Co, Ni, Ti alloy, Co based alloys aluminides of Ti,...
5120351 Ferrite molding and its manufacturing method  
This invention is a ferrite molding made by a manufacturing method of molding and sintering ferrite particles, which are made by pre-sintering of magnetic materials including iron oxide, together...
5114469 Low-temperature consolidation metal-based compositions and method  
A process for producing high-strength, substantially nonporous alloys by means of a three-component mixture, including admixing a first component of one or more low-melting temperature metals or...
5110688 Dieless micro-pyretic manufacturing technique for fabricating bearing materials and the bearing materials produced thereby  
The present invention relates to a method of fabricating various types of bearing materials and the bearing materials produced thereby. The processes of the invention may be used to produce porous...
5110349 Cutting insert of sintered hard alloy  
A cutting insert of a sintered carbonitride alloy and with a complicated geometry, the insert having improved efficiency. This is obtained by giving the powder non-uniform compaction during...
5089354 Wear-resistant, anti-seizing copper alloy composite materials  
A copper alloy composite material which comprises a copper alloy matrix and at least one additive selected from solid materials having self-lubricity and wear-resistant materials and uniformly...
5074907 Method for developing enhanced texture in titanium alloys, and articles made thereby  
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...
5069713 Permanent magnets and method of making  
A non-sintered permanent magnet is formed by a cold compacting technique or by resin bonding using particles of a stoichiometric alloy (e.g. R 2 Fe 14 B where R is at least one rare earth and/or...
5059489 Surface modified structures  
A structure comprising a mixture of metals and metal alloys which are sintered into a hard porous body is presented. The structure can be useful for many different chemical and physical purposes,...
5053074 Ceramic-metal articles  
A dense cermet article including about 80-90% by volume of a granular hard phase and about 5-20% by volume of a metal phase. The hard phase is a carbide, nitride, carbonitride, oxycarbide,...
5049452 Target member used for formation of superconducting film  
A target according to the present invention contains metallic copper ranging from about 8% to about 40% by volume and an oxide containing a rare earth metal such as yttrium and an alkaline earth...
5041261 Method for manufacturing ceramic-metal articles  
A method for manufacturing a dense cermet article including about 80-95% by volume of a granular hard phase and about 5-20% by volume of a metal binder phase. The hard phase is (a) the hard...
5041159 Porous nickel plaque fabrication  
An improved method of forming a nickel plaque wherein an assemblage of particles of a nickel alloy are oxidized and sintered in a preselected atmosphere such that the alloying material is...
5030275 Equiaxed dispersion strengthened copper product  
This invention relates to substantially full-dense, near-net shape bodies made of dispersion strengthened copper (D.S.C.) powder and products which are cold formed and/or machined from these...
5026680 Method of manufacturing a powder of bi-based superconductive oxide containing lead and method of manufacturing a sintered body therefrom  
A Ca carbonate powder, a Sr carbonate powder, and a Cu oxide powder are mixed in predetermined proportions, and sintered at a first predetermined temperature into a Ca-Sr-Cu--O oxide sintered body....
5015290 Ductile Ni.sub.3 Al alloys as bonding agents for ceramic materials in cutting tools  
An improved ceramic-metal composite comprising a mixture of a ceramic material with a ductile intermetallic alloy, preferably Ni 3 Al.
5011529 Cured surfaces and a process of curing  
A cured sintered porous metal structure comprising aluminum and aluminum alloys is presented comprising an aluminum oxide durable surface integral to the structure. The surface layer is enhanced in...
5001014 Ferrite body containing metallization  
A composite comprised of a sintered matrix of spinel ferrite and a non-exposed continuous phase of elemental silver or Ag-Pd alloy ranging to 25 atomic % Pd is produced by co-firing a laminated...
4999336 Dispersion strengthened metal composites  
There is provided a substantially fully dense powdered metal composite comprising a highly conductive metal or metal alloy matrix having dispersed therein discrete microparticles of a refractory...
4980123 Process for obtaining a metallurgical bond between a metal material, or a composite material having a metal matrix, and a metal cast piece or a metal-alloy cast piece  
Disclosed is a process for obtaining a metallurgical bond between a metal material, or a composite material having a metal matrix, and a metal casting, or a metal alloy casting, which comprises...
4973356 Method of making a hard material with properties between cemented carbide and high speed steel and the resulting material  
The present invention relates to a method of preparing an alloy for use as a cutting tool material comprising hard principles and binder phase by which a uniform distribution of the hard principles...
4971866 Vacuum switch contact materials and the manufacturing methods  
In manufacturing contact materials which satisfy all the criteria required for use in vacuum switches as to chopping current, circuit breaking performance, withstanding voltage, welding separation...
4966625 Ferrite composite containing silver metallization  
A composite comprises of a sintered matrix of spinel ferrite and an electrically conductive phase of elemental silver is produced by co-firing a laminated structure of ferrite powder-containing...
4954170 Methods of making high performance compacts and products  
High density compacts are made by providing a compactable particulate combination of Class 1 metals selected from at least one of Ag, Cu and Al, with material selected from at least one of CdO,...
4950327 Creep-resistant alloy of high-melting metal and process for producing the same  
A creep-resistant alloy having a tiered structural arrangement of one or several refractory metals Mo, W, Nb, Ta, V, Cr containing certain doping agents, as well as a process for producing the...
4948676 Cermet material, cermet body and method of manufacture  
The present invention provides a ceramic/metal composite material comprising cerium/aluminum mixed oxides as the ceramic phase and an alloy or intermetallic compond of cerium and at least one of...
4946500 Aluminum based metal matrix composites  
An aluminum based metal matrix composite is produced from a charge containing a rapidly solidified aluminum alloy and particles of a reinforcing material present in an amount ranging from about 0.1...
4941918 Sintered magnesium-based composite material and process for preparing same  
A magnesium-based composite material having improved mechanical strength, and in particular an improved modulus of elasticity, and a relatively low density. The material is provided by pressing and...
4939032 Composite materials having improved fracture toughness  
Composite materials having improved fracture toughness are formed by dispersing ductile inclusions in a less ductile matrix. The matrices may be formed from metals, such as high-strength aluminum...
4939038 Light metallic composite material and method for producing thereof  
A light metallic composite material containing therein fine granular additives dispersed in a matrix of a light metallic material, which composite material has a light weight, high mechanical...
4937041 Stainless steel silver compositions  
Metallization compositions utilizing a (1) relatively refractory flake product, e.g. flake-shaped powder of stainless steel, in combination with (2) a conductive metal such as silver which, upon...
4929418 Method of making a cathode from tungsten powder  
A cathode is made from tungsten powder using as an impregnant the product rmed from adding about 1 mole of a member selected from the group consisting of zirconium, zirconium dioxide, hafnium,...
4927473 Compressed magnetic powder core  
A compressed powder core is made of a compressed body of a magnetic powder each particle of which has a surface covered with an insulating layer. The insulating layer is formed of an insulating...
4917722 Single crystals of chromium and method for producing the same  
A method for producing a single crystal of chromium is disclosed, comprising sintering a chromium molding to thereby apply thereto a thermal strain and heat treating the resulting thermally...
4909840 Process of manufacturing nanocrystalline powders and molded bodies  
A process for the production of a secondary powder composition having a nanocrystalline structure and being comprised of binary or quasi-binary substances composed of at least one of the elements...
4909841 Method of making dimensionally reproducible compacts  
A process of hot pressing of materials to form articles or compacts is characterized by the steps: (A) providing a compactable particulate mixture; (B) uniaxially pressing the particles without...
4906525 Heat-resisting supporting member  
The present invention relates to a heat-resisting supporting member, such as a skid button, for supporting a heated material, such as a steel plate, in a high-temperature atmosphere within a...
4904302 Roller in rotary compressor and method for producing the same  
Disclosed is a roller for use in a rotary compressor, which roller comprising a sintered body consisting essentially of 0.5-2.0% by weight of C, 1.0-5.0% by weight of Cu, 1.2-3.0% by weight of Mo...
4894088 Pellet for fabricating metal matrix composite and method of preparing the pellet  
A pellet for fabricating a metal matrix composite is made of a mixture of a matrix member of a metal powder and at least one reinforcement selected from whiskers, short fibers and suitable...
Matches 101 - 150 out of 311 < 1 2 3 4 5 6 7 >