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| Number | Title | Issue Date |
| 8118906 | Methodology for recycling Ru and Ru-alloy deposition targets and targets made of recycled Ru and Ru-based alloy powders A method of recycling ruthenium (Ru) and Ru-based alloys comprises steps of: providing a solid body of Ru or a Ru-based alloy; segmenting the body to form a particulate material; removing contaminants, including Fe, from the particulate material; reducing the sizes ... | 02/21/2012 |
| 7601198 | Method for producing ammonium hexachlororuthenate and ruthenium powder, as well as ammonium hexachlororuthenate Ammonium hexachlororuthenate is produced by adding ammonium chloride to a hydrochloric acid solution containing ruthenium. The ammonium hexachlororuthenate is baked to obtain the ruthenium powder. When the moisture content of the ammonium hexachlororuthenate is high... | 10/13/2009 |
| 7459007 | Method for producing ultra-fine metal flakes The present invention provides a metallic composition, which includes a plurality of ultra-fine copper flakes having at least one desirable feature, such as oxidation resistance and excellent dispersibility in a non-aqueous system. Also provided is a method for form... | 12/02/2008 |
| 7407526 | Food additive The invention concerns an iron powder for fortifying foodstuff. The powder consists of a reduced iron powder having irregularly shaped particles, wherein the iron powder has a ratio AD:PD less than 0.3, wherein AD is the apparent density in g/cm3, and PD ... | 08/05/2008 |
| 7361204 | Generator for flux specific bursts of nano-particles Methods, systems and apparatus for producing a variable, known number of nanoparticles of various materials in an expanding mist in a vacuum or enclosure. The configurations allow for this mist of small particles to be produced in bursts, at repetition rates over a ... | 04/22/2008 |
| 7329303 | Methods for producing titanium metal using grinding media Grinding media, including shaped media such as spheres or rods ranging in size from about 0.5 micron to 100 mm in diameter, are formed from a multi-carbide material consisting essentially of two or more carbide-forming elements and carbon, with or without carbide-fo... | 02/12/2008 |
| 7316725 | Copper powders methods for producing powders and devices fabricated from same Copper metal powders, methods for producing copper metal powders and products incorporating the powders. The copper metal powders have a small particle size, narrow size distribution and a spherical morphology. The method includes forming the metal particles in a co... | 01/08/2008 |
| 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 |
| 7235118 | Process for agglomeration and densification of nanometer sized particles A method and product derived therefrom for consolidating nanoparticles to form particles in a micrometric size distribution. The method preserves the nanoparticles with the resultant micrometric particles. The primary processing operation is milling. ... | 06/26/2007 |
| 7163580 | Aluminum flake pigment, paint composition and ink composition containing the same, and films thereof In order to provide an aluminum flake pigment having excellent metallic luster, fine-grainedness and a plating-like appearance presenting silvery classiness, an aluminum flake pigment, obtained by grinding aluminum powder in an organic solvent, having an average thi... | 01/16/2007 |
| 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 |
| 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 |
| 6780218 | 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... | 08/24/2004 |
| 6673134 | Fine copper powder and process for producing the same A fine flaky copper powder having an average major axis diameter of 4 to 10 μm and a flakiness of 2 to 20, has a bulk density of 2 to 4 g/cm3 and a BET specific surface area of 0.4 to 1.5 m2 /g; A process for producing the copper po... | 01/06/2004 |
| 6585831 | Method of making iron base magnetic material alloy powder A method of making an iron base magnetic material alloy powder includes the steps of: preparing an iron base magnetic material alloy containing at least 50% by mass of iron; and pulverizing the magnetic material alloy using a pin mill. A portion of the mi... | 07/01/2003 |
| 6402804 | Process for preparing metallic fibers Disclosed is a process for preparing metallic fibers. It comprises pre-treating metal powder of a predetermined size such that finally obtained metallic fibers can be separated with ease; elongating the pre-treated metal powder at a predetermined draw rat... | 06/11/2002 |
| 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 |
| 6264719 | Titanium alloy based dispersion-strengthened composites Titanium based metal matrix composites reinforced with ceramic particulate are well known, based on a blend of titanium alloy powders with ceramic powders, e.g., aluminum oxide powders, utilizing a low energy ball milling process, followed by cold compact... | 07/24/2001 |
| 6231636 | Mechanochemical processing for metals and metal alloys A set of processes for preparing metal powders, including metal alloy powders, by ambient temperature reduction of a reducible metal compound by a reactive metal or metal hydride through mechanochemical processing. The reduction process includes milling r... | 05/15/2001 |
| 6203768 | Process for the production of ultrafine particles A new, cost effective process for the production of ultrafine particles which is based on mechanically activated chemical reaction of a metal compound with a suitable reagent. The process involves subjecting a mixture of a metal compound and a suitable re... | 03/20/2001 |
| 6168644 | Titanium-base powders and process for production of the same Titanium hydride powder with a maximum particle diameter of substantially 150 μm or less, the powder with particle diameters of 10 μm or less being 8% or less by weight, which is produced via step for embrittling a titanium and titanium alloy by hydroge... | 01/02/2001 |
| 6156289 | Iron based roofing granules and method of coloring same Method of preparing colored roofing granules (18) from granulated mineral-containing matter having an elemental iron content of about 15% to about 70% is disclosed. The method comprises heating the granules (18) to a temperature of from about 450° C. to ... | 12/05/2000 |
| 6126712 | Metal powder granulates, method for their production and use of the same The invention concerns metal powder granulates comprising one or a plurality of the metals Co, Cu, Ni, W and Mo. The invention further concerns a method for the production of these granulates and the use thereof. The production method is characterized in ... | 10/03/2000 |
| 5972070 | Sintered friction material, composite copper alloy powder used therefor and manufacturing method thereof A sintered friction material includes a copper alloy base and hard particles. The copper alloy base includes copper and at least one of, and preferably both, Zn and Ni within a total range of 5 to 40 wt % of the copper alloy base. The hard particles are u... | 10/26/1999 |
| 5902373 | Sponge-iron powder The invention relates to a composition and a method for producing a finely ground powder of sponge-iron and hard-phase material.... | 05/11/1999 |
| 5679130 | Hydrogen occluded alloy and process for producing such A hydrogen occluded alloy and a process for producing the above alloy are disclosed. The above process mechanically forms the hydrogen occluded alloy having improved initial discharging characteristics. In the above process, either a powdered LaNi5 | 10/21/1997 |
| 5588983 | Production of copper powder Finely divided spherical copper powder is produced by ball-milling copper powder together with 0.1 to 3 wt % of stearic acid for 2 to 16 hours.... | 12/31/1996 |
| 5582629 | Treatment process of sponge titanium powder The present invention provides a process for reforming sponge titanium powder into intermediate titanium particles of desirable fluidity and superior bulk specific gravity suitable as a starting material of a titanium or titanium alloy product to be produ... | 12/10/1996 |
| 5461012 | Non-explosive fine metallic powder mixtures for making refractories A substantially non-explosive mixed powder containing finely divided metallic particles suitable for being incorporated in a refractory mixture, intimately mixed together with inert refractory particles. The refractory particles are present in such partic... | 10/24/1995 |
| 5338712 | Production of non-explosive fine metallic powders A process for producing a substantially non-explosive powder containing finely divided metallic particles suitable for being incorporated in a refractory mixture, comprising simultaneously grinding a mixture of pieces of metal with pieces of an inert refr... | 08/16/1994 |
| 5330554 | Method for producing iron-nitride powders A method for producing iron-nitride powder comprises the steps of introducing iron powder and NH3 gas or N2 gas in a vessel, and milling the iron powder in the NH3 gas or the N2 gas. Furthermore, a method for pr... | 07/19/1994 |
| 5328501 | Process for the production of metal products B9 combined mechanical activation and chemical reduction A process for the production of a metal product which comprises subjecting a mixture of at least one reducible metal compound and at least one reducing agent to mechanical activation to produce a metal or alloy. Preferably, the mechanical activation is pe... | 07/12/1994 |
| 5173108 | Method for controlling the oxygen content in agglomerated molybdenum powders A method is disclosed for producing an agglomerated molybdenum plasma spray powder with a controlled level of oxygen which comprises forming a relatively uniform mixture of agglomerated powders containing molybdenum dioxide and one or more ammonium-contai... | 12/22/1992 |
| 5147449 | Process for production of metal-metalmetalloid powders with their articles having ultramicrocrystalline to nanocrystalline structure A process for producing metal metalmetalloid powder, with its particles having ultramicrocrystalline structures to nanocrystalline structures with the metalmetalloid component being composed of at least one metal reacted with at least one metalloid of the... | 09/15/1992 |
| 5112388 | Process for making nanocrystalline metallic alloy powders by high energy mechanical alloying There are described metallic powders comprising agglomerated nanocrystals of an electroactive alloy. The main component of the alloy can be of nickel, cobalt, iron or mixtures thereof while the alloying element is one or more transition metals such as Mo,... | 05/12/1992 |
| 5032174 | Powder particles for fine-grained hard material alloys and a process for the preparation of powder particles for fine-grained hard material alloys The present invention relates to powder particles consisting of hard principles and binder metal for the manufacture of superior, uniquely fine-grained hard material alloys and to a procedure for the preparation of said particles. The preparation is perfo... | 07/16/1991 |
| 5030278 | Process of restructuring a group of finely divided particles Process of restructuring a group of finely divided particles, of granulometries lower than 100 microns, wherein the particles to be restructured are placed in a bath of cryogenic liquid which is inert with respect to the particles, the operation of restru... | 07/09/1991 |
| 4853045 | Method for the manufacture of rare earth transition metal alloy magnets In a known method of manufacturing a sintered rare earth transition metal and boron magnet body, e.g. of Nd--Fe--B, the cast alloy is comminuted by hydrogen decrepitation in an atmosphere of pure hydrogen before further comminution, pressing in a magnetic... | 08/01/1989 |
| 4787561 | Fine granular metallic powder particles and process for producing same Powder particles and a process for producing the particles are disclosed. The particles are of a ductile and/or malleable material which can be metal, metal alloy, or metal-ceramic composites having a substantially granular appearance and an aspect ratio ... | 11/29/1988 |
