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| Number | Title | Issue Date |
| 8034156 | Method for producing decomposer of organic halogenated compounds A method for producing a decomposer of an organic halogenated compound comprises subjecting an iron powder produced beforehand to plastic deformation that gives the iron powder particles a flat shape. Further, an iron powder and a copper salt powder are mechanically... | 10/11/2011 |
| 7776131 | Manufacturing method for oxide dispersed alloy A manufacturing method for an oxide-dispersed alloy wherein dispersed particles consisting of oxides of one or two or more additive metals are dispersed in a matrix metal, comprising the steps of (a) manufacturing alloy powder or an alloy wire rod consisting of the ... | 08/17/2010 |
| RE40717 | Method of making a cemented carbide power with low compacting pressure The present invention relates to a method of making a cemented carbide with submicron WC grain size with a powder metallurgical technique including milling, pressing and sintering. The method includes milling all components except WC for about three hours, then addi... | 06/09/2009 |
| 7537637 | Method of making agglomerated cemented carbide powder mixtures The present invention relates to a method of making an agglomerated powder mixture by wet milling a powder mixture containing hard constituent powder(s) based on carbides of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo and/or W and greater than about 15 wt-% binder phase powder(s)... | 05/26/2009 |
| 7404842 | Microfabricated hydrogen storage device and metal hydride fuel cell/battery A hydrogen storage system is described that can fabricated under ambient atmospheric conditions and humidity. The hydrogen storage system includes hydrogen-absorbing alloy particles, such as ABx-type alloys, for example LaNi4.7Al0.3,... | 07/29/2008 |
| 7361205 | Method for production of metallic elements of high purity such as chromes The invention relates to a method of producing granules made of high purity metal or metal alloy, in particular based on chromium, the method being characterized in that it comprises the steps consisting in: preparing a metal or a metal alloy having non-metallic inc... | 04/22/2008 |
| 7329381 | Method for fabricating a metallic article without any melting A metallic article made of metallic constituent elements is fabricated from a mixture of nonmetallic precursor compounds of the metallic constituent elements. The mixture of nonmetallic precursor compounds is chemically reduced to produce an initial metallic materia... | 02/12/2008 |
| 7318841 | Synthesis of calcium phosphates by mechano-chemical process A low crystallinity calcium phosphate powder is prepared by mechanically grinding a calcium phosphate solid under grinding forces local heating sufficient to mechanically alloy the calcium phosphate solid and reduce the crystalline domains of the calcium phosphate s... | 01/15/2008 |
| 7309374 | Diffusion bonded nickel-copper powder metallurgy powder In contrast to current industrial practice where alloying powders are added to starting powder metallurgy compositions either as powder mixtures or fully prealloyed powders, the present invention posits a diffusion bonded nickel-copper precursor additive mixture for... | 12/18/2007 |
| 7288133 | Three-phase nanocomposite A three-phase nanocomposite that comprises about 0.5 to 10 vol % nano-scale aluminum oxide particles and about 1 to 45% high modulus ceramic particles and an aluminum alloy matrix. The nano phase is to enhance nanocomposite strength and the modulus phase is to enhan... | 10/30/2007 |
| 7241328 | Method for preparing ultra-fine, submicron grain titanium and titanium-alloy articles and articles prepared thereby A method for preparing ultra-fine, submicron grain titanium or titanium-alloy articles (78) used for joining or assembling of detail components. Coarse-grained titanium or titanium-alloy materials (52) are severely mechanically deformed using cryogenic... | 07/10/2007 |
| 7226493 | Method for grain refining of steel, grain refining alloy for steel and method for producing grain refining alloy The present invention relates to a method for grain refining of steel. A grain refining alloy having a composition FeXY where X is one or more elements selected from the group consisting of Cr, Mn, Si, Ni, and Mo and where Y is one or more oxide and/or sulphide and ... | 06/05/2007 |
| 7201789 | Nanocomposites with activated interfaces prepared by mechanical grinding of magnesium hydrides and use for storing hydrogen The invention concerns a method for preparing a nanocomposite based on magnesium and another element or compound known to absorb hydrogen and hardly miscible when ground with magnesium or its hydride, such as vanadium, titanium or niobium. The method is characterise... | 04/10/2007 |
| 7172643 | Lead-free solder powder material, lead-free solder paste and a method for preparing same Lead-free solder metal powder material including two or more metals capable of forming an intermetallic compound and having an unreacted phase and an amorphous phase. Further, a lead-free solder paste is prepared by mixing the powder material with a soldering flux. ... | 02/06/2007 |
| 7156893 | Method of making niobium and other metal powders Methods of forming niobium powders and other metal powders are described. The method involves milling the metal powders at elevated temperatures and in the presence of at least one liquid solvent. The methods of the present invention have the ability to reduce DC le... | 01/02/2007 |
| 7142408 | Tantalum powders and methods of producing same Methods of forming tantalum powders and other valve metal powders are described. The method involves high impact milling a starting powder in a fluid medium and optionally a milling media using a high energy mill. The methods of the present invention have the abilit... | 11/28/2006 |
| 7138004 | Production process for niobium powder A niobium hydride or niobium hydride alloy is ground at a temperature of −200 to 30° C. in the presence of a dispersion medium to obtain a niobium powder for capacitors, having a low oxygen content, the niobium powder for capacitors is granulated to obtain a niob... | 11/21/2006 |
| 7108734 | Silicon powder for preparing alkyl- or aryl-halogenosilanes The invention concerns a silicon powder for making alkyl- or aryl-halogenosilanes, with particle-size distribution less than 350 μm, and containing less than 3% and preferably less than 2% of particles having a size less than 5 μm. Said powder enables to improve e... | 09/19/2006 |
| 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 |
| 7014915 | Controlled binary macrosegregated powder particles, their uses, and preparation methods therefor A material has a mass of powder particles. The mass of powder particles includes controlled binary macrosegregated powder particles made of at least two constituent elements. Each controlled binary macrosegregated powder particle has a chemically binary structure wh... | 03/21/2006 |
| 6939449 | Water electrolyzer and system An electrolyzer for generating hydrogen by the electrolytic dissociation of water employs anode and cathode half-cells, separated by a planar polymer-based solid electrolyte, and includes a water reservoir for independently maintaining a desired level of water in th... | 09/06/2005 |
| 6939389 | Method and apparatus for manufacturing fine powders The manufacture of pure, fine spherical powders has always been a problem for many materials, particularly for high-melting and highly reactive materials such as titanium, tantalum, vanadium and zirconium. The present invention provides a process and apparatus for p... | 09/06/2005 |
| 6914032 | Method of producing tungsten-copper based composite powder and sintered alloys for heat-sink using said composite powder The present invention relates to a method of producing W—Cu based composite powder, which is used in heat-sink materials for high-power integrated circuits, electric contact materials, etc, and to a method of producing a W—Cu based sintered alloy by using the co... | 07/05/2005 |
| 6863707 | Method of forming tungsten-coated W—Cu composite powder Disclosed is a method of forming a W—Cu composite powder having a Cu particle surrounded by tungsten by mixing and pulverizing tungsten oxide powder and copper oxide powder using turbular mixing or ball milling, reducing the Cu powder firstly at 200˜400° C. unde... | 03/08/2005 |
| 6858060 | Process for the production of composite components by powder injection molding, and composite powders suitable for this purpose The invention relates to a process for the production of metallic and metal-ceramic composite components by powder injection molding of a system comprising a metal composite powder, a binder and optionally a ceramic component, where the metal composite powder used i... | 02/22/2005 |
| 6835227 | Process for manufacturing alloy powder with dual consumable rotary electrodes arc melting A process for manufacturing alloy powder with dual consumable rotary electrodes arc melting is suitable for manufacturing pure and low-surface-area powder of metal, active metals and their alloys. In the process, rotary electrode and tungsten electrode adopted by co... | 12/28/2004 |
| 6797080 | Method for producing spraying material When a chromium-iron-based alloy, preferably a chromium-iron-based alloy having a chromium content of about 60 to about 95 mass % is subjected to heat treatment at about 500 to about 1,300° C., and subsequently to grinding treatment by use of an impact mill, grinda... | 09/28/2004 |
| 6783608 | Secondary agglomerates of magnetic metal particles for magnetic recording and process for producing the same Secondary agglomerates of magnetic metal particles for magnetic recording, have a sodium content of not more than 20 ppm and a calcium content of not more than 40 ppm, an average particle diameter of 300 to 800 μm and an upper limit of particle diameters of 2,000 Î... | 08/31/2004 |
| 6764557 | Method for producing angular, stainless shot-blasting abrasives based on an fe-cr-c alloy The invention relates to a process for producing a corrosion-resistant blasting agent (>60 HRC) with sharp edges based on an Fe—Cr—C alloy. A granulate consisting of an iron-chromium-carbon alloy is hardened in said process to >60 HRC by subjecting it to a heat ... | 07/20/2004 |
| 6733563 | Methods for manufacturing hydrogen storage tanks Methods for making hydrogen storage tanks may include disposing a substantially solid block of hydrogen-absorbing alloy within an activation vessel. Hydrogen gas may then be introduced into the activation vessel under conditions that will cause the hydrogen-absorbin... | 05/11/2004 |
| 6726892 | Advanced aluminum alloys for hydrogen storage Various aspects of the present invention provides a nanocrystalline powder suitable for storing hydrogen and a method of producing such a powder. One embodiment provides a nanocrystalline powder containing crystals of an aluminum alloy selected from the group consis... | 04/27/2004 |
| 6689193 | Hydrogen storage alloy powder and method for producing the same To produce a hydrogen absorbing alloy powder, a starting powder and a plurality of balls are thrown into a container of a ball mill, and then, the inside of the container is maintained in a hydrogen atmosphere to conduct a mechanical alloying.... | 02/10/2004 |
| 6663688 | Sintered material of spheroidal sintered particles and process for producing thereof The invention relates to sintered particles for use in wear applications and to a process for producing the sintered particles. The particles are of substantially spheroidal shape, have a grain size of 20 to 180 μm and have a predominantly closed porosit... | 12/16/2003 |
| 6656246 | Process for producing hydrogen absorbing alloy powder, hydrogen absorbing alloy powder, and hydrogen-storing tank for mounting in vehicle To produce a hydrogen absorbing alloy powder which is an aggregate of alloy particles each including a metal matrix and added-components, an aggregate of metal matrix particles and an aggregate of added-component particles are used, and mechanical alloyin... | 12/02/2003 |
| 6558447 | Metal powders produced by the reduction of the oxides with gaseous magnesium Metal powder Ta and/or Nb, with or without one or metals from the group Ta, Nb, Ti, Mo, W, V, Zr and Hf, is made in a fine powder form by reduction of metal oxide by contact with a gaseous reducing agent, preferably an alkaline earth metal, to near comple... | 05/06/2003 |
| 6478844 | Method for making hydrogen storage alloy A method for making a hydrided hydrogen storage alloy powder from component material. In the present method a material is worked at the same time it is hydrided. Working preferably involves comminution of the material.... | 11/12/2002 |
| 6387152 | Process for manufacturing nanocrystalline metal hydrides In a process of producing nanocrystalline metal hydrides, an elemental metal hydride of a first kind is subjected to a mechanical milling process with at least one elemental metal or at least one additional metal hydride to produce an alloy hydride.... | 05/14/2002 |
| 6342087 | Stainless steel powder The invention concerns a process for producing low oxygen, essentially carbon free stainless steel powder, which comprises the steps of preparing molten steel which in addition to iron contains carbon and at least 10% of chromium, adjusting the carbon con... | 01/29/2002 |
| 6277170 | Nanocrystalline Ni-based alloys A power of an alloy of Ni and Mg, La, Be or Li, consisting of crystallites having a grain size lower than 100 nm and a crystalline structure allowing hydrogen absorption. This powder which is preferably obtained by mechanical grinding, may consist of cris... | 08/21/2001 |
| 6273930 | Method of making a cemented carbide powder with low compacting pressure The present invention relates to a method of making a cemented carbide with submicron WC grain size with a powder metallurgical technique including milling, pressing and sintering. The method includes milling all components except WC for about three hours... | 08/14/2001 |
