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RE40785 |
Method of making a submicron cemented carbide with increased toughness
The present invention relates to a method of making a cemented carbide comprising WC, 6-12 wt. % Co and 0.1-0.7 wt. % Cr, wherein the WC-grains are coated with Cr prior to mixing and no milling...
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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...
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7524361 |
Porous hydrogen separation membrane and method for preparing the same
Provided is a hydrogen separation membrane prepared by compression-molding metal microparticles having hydrogen adsorbing properties, wherein the microparticles are composed of 0.5 to 50% by weight...
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7498080 |
Ferromagnetic powder for dust core
A particle ( 10 ) of ferromagnetic powder for use in preparation of soft magnetic core components has a core-shell structure. The particle includes a central core ( 12 ) and a shell ( 14 ) coated...
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7419527 |
Increased density particle molding
Novel powders or particles are formed by associating them with relatively small proportions of hydrolysable liquid material. The resulting particle/liquid mass is placed in a mold and sintered...
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7416578 |
Powder metal composition
The invention concerns a powder metal composition comprising an iron based powder and a lubricant and/or binder comprising at least one secondary amide of the general formula: R 1 —NH—CO—R 2...
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7378052 |
Method and apparatus for producing free-form products
A method and apparatus for producing products from a powered base material, by means of so-called free form fabrication, wherein the powder granules are bound together into a solid product.
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7371271 |
Composite soft magnetic sintered material having high density and high magnetic permeability and method for preparation thereof
An object of the present invention is to provide a composite soft magnetic sintered material that has high density, high mechanical strength and high relative magnetic permeability at high...
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7309373 |
Method of making a ceramic body of densified tungsten carbide
A method of making tungsten carbide and a method of making a densified tungsten carbide-containing ceramic body with a transverse rupture strength greater than 300,000 psi are disclosed.
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7211218 |
Polycrystalline diamond carbide composites
Polycrystalline diamond (PCD) carbide composites of this invention have a microstructure comprising a plurality of granules formed from PCD, polycrystalline cubic boron nitride, or mixture thereof,...
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7172725 |
W-Cu alloy having homogeneous micro-structure and the manufacturing method thereof
In W—Cu alloy having a homogeneous micro-structure and a fabrication method thereof, the method includes forming mixed powders by mixing tungsten powders with W—Cu composite powders; forming a...
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7141207 |
Aluminum/magnesium 3D-Printing rapid prototyping
A 3D Printing Rapid Prototyping process using Al/Mg particles coated with a metal (i.e. copper, nickel, zinc, or tin) that (1) prevents oxidation of the Al/Mg particles, and (2) either alone, or...
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7105201 |
Versatile processes for preparing and using novel composite particles in powder coating compositions
Methodology for constructing composite particles from ingredients comprising two or more particulate components. The resultant particles are usefully incorporated into powder coating compositions....
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6989062 |
Heat treatment of iron-based components
The present invention concerns a method of improving the properties of powder metallurgically produced SMC compacted body consisting of a soft magnetic material of insulated powder particles and a...
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6916443 |
High differential pressure electrochemical cell
An electrochemical cell capable of operating in pressure differentials exceeding about 2,000 psi, using a porous electrode. The porous electrode comprises a catalyst adsorbed on or in a porous...
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6869566 |
Method of fabricating metallic glasses in bulk forms
The method of the present invention incorporates an amorphous metal powder coated with a ductile crystalline metal or alloy. The coated powder is consolidated to form a dense compact of isolated or...
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6820323 |
Method of firing magnetic cores
A method of firing magnetic cores includes the steps of attaching a powder to the surface of a plurality of flattened-ring compact bodies made of a magnetic material, arranging the plurality of...
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6746507 |
Production method of composite material and composite material produced by the production method
There are disclosed a method for producing a composite material composed of a dispersing agent and a matrix, and a composite material produced by the method. The matrix is formed by the steps of...
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6740287 |
Method for making articles from nanoparticulate materials
A method of fabricating nanostructure bodies by integrating the steps of attriting precursor nanometer-sized particulate materials, desorbing the exposed surfaces of the attrited nanoparticulates,...
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6673307 |
Method of making cemented carbide
The present invention relates to a method of making a cemented carbide by mixing powder of WC and possibly other powders forming hard constituents and binder phase and pressing agent, drying,...
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6641917 |
Spray powder and method for its production
A spray powder to be used for forming a coating, which comprises from 80 to 97 wt %, based on the total weight, of a cermet powder and from 3 to 20 wt %, based on the total weight, of a metal...
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6625872 |
Method for sintering magnetic core
A method for easily sintering a magnetic core while preventing damage to the magnetic core caused by deformation or other problems, includes preparing a flattened tubular compact by forming the...
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6592958 |
Optical recording medium and sputtering target for fabricating the recording medium
An optical recording medium is provided with a recording layer made of a phase-change recording material including Ag, In, Sb, and Te as the main constituent elements, with the respective atomic...
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6585931 |
Molten carbonate fuel cell anode and method for manufacturing the same
A manufacturing method of a molten carbonate fuel cell (MCFC) anode includes the steps of: forming a Ni coating solution for coating a surface of alumina powder by mixing nickel acetate and ethanol...
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6573225 |
Amide wax lubricant for warm compaction of an iron-based powder composition
The invention concerns a metal powder composition for warm compaction comprising an iron-based powder and lubricant powder consisting of a polycarboxylic acid amide wax having a melting point peak...
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6544352 |
Method for the compaction of soft magnetic powder
Disclosed is a method for the compaction of a soft magnetic powder capable of manufacturing a green compact which has attained high density and high strength, is excellent in mechanical properties...
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6537389 |
Soft magnetic, deformable composite material and process for producing the same
A magnetically soft, moldable composite material include powder grains coated with nonmagnetic thermoplastic compounds or with molecular precursors for ceramics or with intermetallic compounds, the...
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6468680 |
Cemented carbide insert with binder phase enriched surface zone
The present invention relates to a coated cemented carbide insert with a binder phase enriched surface zone. The WC-grains have an average grain size in the range 1.0-3.5 μm, preferably 1.3-3.0...
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6447569 |
Diamond containing edge material
A blade material, containing diamond particles below about 100 μm in diameter, is formed as a cutting material where the diamond particles serve as cutting agents while being fixed in a retaining...
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6419877 |
Compressed soft magnetic materials
The invention concerns a process for the preparation of a compressed soft magnetic powder core comprising the steps of compacting an iron based powder the particles of which are insulated by a...
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6409796 |
Method for production of tantalum and niobium powders with highly developed surface
A method of treatment a metal powder to increase its surface area is presented. The metal powder to be treated is selected from a group consisting of tantalum, niobium and mixtures thereof. The...
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6368423 |
Process for producing amorphous magnetically soft body
The invention improves the thermal conductivity of the material powder to be fired and also makes it possible to produce an amorphous magnetically soft body within a shortened period of time. The...
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6346132 |
High-strength, high-damping metal material and method of making the same
A composite material includes a metallic second phase dispersed in a metallic matrix material. The metallic second phase has a grain structure that is at least partially martensitic. The second...
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6328817 |
Powder for permanent magnet, method for its production and anisotropic permanent magnet made using said powder
There is provided a powder for permanent magnet comprising needle-like fine particles of Fe or Fe--Co alloy as a base material, a hard magnetic layer and a separation layer of an oxide of rare...
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6319460 |
Metal-matrix diamond or cubic boron nitride composites
A metal-matrix diamond or cubic boron nitride composite and method of making the same are disclosed. The metal-matrix/diamond composite includes grains of diamond uniformly distributed in a metal...
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6306339 |
Method for manufacturing hydrogen storage material
A hydrogen storage material is disclosed with no collapse due to pulverization of hydrogen storage alloy particles by repeated hydrogen absorption and desorption thereby permitting repeated use...
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6287513 |
Method of shaping powder metal parts
Disclosed is a method of shaping powdered metal parts comprising: (a) providing powdered metal from a source; (b) applying a heated fugitive coating to the powdered metal; (c) passing the...
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6274082 |
Process for producing shaped article
A process for producing a shaped article, comprising: preparing a first powder having high strength and rigidity after completion of forming, and a second powder having abrasion resistance and...
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6258147 |
Cemented carbide with a hardenable binder phase
The present invention relates to a sintered cemented carbide consisting of 50 to 90 wt-% submicron WC in a hardenable binder phase. The binder phase comprises, in addition to Fe, 10-60 wt-% Co,...
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6251339 |
Method for making parts from particulate ferrous material
The invention is directed to a method of forming parts having complex geometries made by coating ferrous based powders with a metallurgical coating, pressing the powder to make the parts, and using...
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6224990 |
Binder systems for powder metallurgy compacts
The application of polypropylene carbonate in solution to valve metal powders having relatively high surface area, then evaporating the solvent under static (non-agitating) conditions. The static...
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6210632 |
Cemented carbide body with increased wear resistance
As there is disclosed a cemented carbide body comprising WC with an average grain size of <10 μm in a binder phase. In the cemented carbide body the WC grains can be classified in at least two...
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6187259 |
Method for preparing rare-earth system sintered magnet
The object of the present invention is to provide rare-earth system sintered magnets such as R--Fe--B system or R--Co system having excellent magnetic properties, unique configuration of a small...
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6179894 |
Method of improving compressibility of a powder and articles formed thereby
A method for producing high-density powder metallurgy articles formed of hard powder materials, and particularly hard ferromagnetic materials that yield powder metallurgy magnets exhibiting...
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6165412 |
Method of making non-sag tungsten wire for electric lamps
A method of making a potassium-doped tungsten powder is described comprising forming a mixture of ammonium paratungstate or ammonium metatungstate and a potassium-containing compound selected from...
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6139600 |
Method of making iron-based powder composition for powder metallurgy excellent in flow ability and compactibility
An iron-based powder composition is produces in accordance with a method comprising the steps of: adding to iron-based and alloying powders, for a primary mixing, a surface treatment agent, and in...
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6136265 |
Powder metallurgy method and articles formed thereby
A method of forming a coating on metal particles that can be used to produce powder metallurgy articles, including those for electromagnetic and structural applications. The method is generally a...
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6132676 |
Minimal thermal expansion, high thermal conductivity metal-ceramic matrix composite
The invention provides techniques for forming composites including XW 2 O 8 , where X=Zr, Hf, or a combination, dispersed within a continuous, metal matrix. A low to zero coefficient of thermal...
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6110420 |
Composite of coated magnetic alloy particle
A composite structure and method for manufacturing same, the composite structure being comprised of metal particles and an inorganic bonding media. The method comprises the steps of coating...
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6093232 |
Iron-carbon compacts and process for making them
The present invention includes iron-carbon compacts and a process for making them. The process includes preparing a slurry comprising iron powder, furfuryl alcohol, and a polymerization catalyst...
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