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| Number | Title | Issue Date |
| 7374717 | Method for producing intermetallic compound porous material The present invention provides a method for efficiently producing an intermetallic compound porous material. Specifically, the invention provides a porous material production method comprising molding a mixed powder of at least two inorganic powders and performing a... | 05/20/2008 |
| 7361235 | Method for producing dispersed oxide reinforced ferritic steel having coarse grain structure and being excellent in high temperature creep strength A method of manufacturing an oxide dispersion strengthened ferritic steel excellent in high-temperature creep strength having a coarse grain structure. The method comprises mixing alloy powders and an Y2O3 powder, subjecting the mixed powder to... | 04/22/2008 |
| 7270782 | Reduced temperature and pressure powder metallurgy process for consolidating rhenium alloys Pressure powder metallurgy process for consolidating refractory or rhenium alloys using a reduced temperature and elevated pressure. Rhenium metal has high temperature strength and wear resistance but has a very high melting point as a pure metal and thus is difficu... | 09/18/2007 |
| 7226492 | High-powder tungsten-based sintered alloy Tungsten-based alloy material sintered at a high sintering power that may contain additive elements soluble in the nickel and selected from the group constituted, for example, by rhenium, molybdenum, tantalum, niobium, vanadium or a mixture of these, wherein, after ... | 06/05/2007 |
| 7153468 | Physical vapor deposition targets and methods of formation A method includes combining a solid first material and a solid second material and melting at least a portion of the first material sufficient to coat the second material and any remaining first material. An approximately homogenous distribution of the second materi... | 12/26/2006 |
| 7112302 | Methods for making shape memory alloy products The manufacturing methods according to the present teachings provide shape memory alloy products having both a uniform composition and a precise shape memory recovery temperature. In this manufacturing method, raw material powders (e.g., Ti and Ni powders) may be pr... | 09/26/2006 |
| 7063815 | Production of composite materials by powder injection molding and infiltration Metal-metal or metal-ceramic/carbide composite materials are fabricated by combination of powder injection molding and infiltration. This is achieved by first forming a composite system having a matrix component and an infiltrant layer. The matrix component is forme... | 06/20/2006 |
| 7048808 | Rare-earth sintered magnet and method of producing the same The present invention provides a rare-earth sintered magnet exhibiting desirable magnetic properties in which the amount of Nd and/or Pr forming a non-magnetic phase in a grain boundary phase is reduced. Specifically, the present invention provides a rare-earth sint... | 05/23/2006 |
| 6926969 | Process for the production of sintered porous bodies The invention relates to a process for the production of sintered porous bodies, to porous bodies produced correspondingly using the process, and to their use. With the solution according to the invention, sintered bodies which achieve improved properties, such as a... | 08/09/2005 |
| 6878307 | Low temperature firable PZT compositions and piezoelectric ceramic devices using the same A piezoelectric ceramic composition firable at a reduced sintering temperature is provided. The main composition is expressed with the general formula: [(Pb1-m-n-pSrmBanCdp)(ZrxTi1-x)1-... | 04/12/2005 |
| 6761852 | Forming complex-shaped aluminum components Although MIM (metal injection molding) has received widespread application, aluminum has not been widely used for MIM in the prior art because of the tough oxide layer that grows on aluminum particles, thus preventing metal—metal bonding between the particles. The... | 07/13/2004 |
| 6723280 | Method of suppressing the oxidation characteristics of nickel A method of providing a resistance to oxidation of Nickel at high temperatures by combining Ni powder with five percent Pt resinate, and heating the same to a temperature of 500° C. to 1300° C. Electro-conductive components serving as electrodes and the like compr... | 04/20/2004 |
| 6723278 | Method of laser casting copper-based composites This invention presents the process of direct laser casting of copper alloys: Cu—X (where X=Ni, Fe, W;) and their composites Cu—Y and Cu—X—Y (Y=WC, TiC, Ti+C) from powders prepared using mechanical mixing and ball milling processes. Since the metallic powder... | 04/20/2004 |
| 6699821 | Nb3Al superconductor and method of manufacture A Nb3 Al superconducting wire and method for fabricating the same wherein Nb and Al powders in combination, or Nb--Al alloy powders are encapsulated in a metal tube, preferably copper or copper-alloy (e.g., CuNi), and the resultant composite is... | 03/02/2004 |
| 6666901 | Thermal shock resistant quasicrystalline alloy target Targets for the fabrication of quasicrystalline films are prepared from powders of the elemental constituents of the objective quasicrystalline material that have been pressed into a required target shape. The temperature of target fabrication is maintain... | 12/23/2003 |
| 6641779 | Fe-based sintered valve seat having high strength and method for producing the same A valve seat made of an Fe-based sintered alloy excellent in wear resistance and having a reduced counterpart valve attack property is disclosed, which comprises a base comprising 15-40% by weight of Cu, 0.3-12% by weight of Ni and 0.0005-3.0% by weight o... | 11/04/2003 |
| 6607693 | Titanium alloy and method for producing the same A titanium alloy according to the present invention is characterized in that it comprises an element of Va group (the vanadium group) in an amount of 30-60% by weight and the balance of titanium substantially, exhibits an average Young's modulus of 75 GPa... | 08/19/2003 |
| 6506338 | Processing of iron aluminides by pressureless sintering of elemental iron and aluminum A pressureless sintering process for producing FeAl wherein the heating rate is controlled in a manner which minimizes expansion of a mixture of elemental powders of iron and aluminum. During the process, the heating rate is maintained below 1° C./min to... | 01/14/2003 |
| 6475262 | Method of forming a component by sintering an iron-based powder mixture The method comprises preparing an iron-based powder mixture, and compressing and sintering the mixture to form the component. Said mixture comprises a first powder which forms 40 to 60 wt % of the mixture and which is an atomised pre-alloy comprising nick... | 11/05/2002 |
| 6458317 | Method for forming a nickle-titanium plating A plating material mainly consisting of nickel-titanium is hot pressed onto a surface.... | 10/01/2002 |
| 6348080 | Steel powder for the preparation of sintered products The present invention concerns a method of preparing a sintered product having a tensile strength 750 MPa comprising the steps of compacting a water-atomised, annealed iron-based powder comprising, by weight %, Cr 2.5-3.5, Mo 0.3-0.7, Mn 0.09-0.3, O | 02/19/2002 |
| 6287433 | Insoluble titanium-lead anode for sulfate electrolytes An insoluble anode for sulfate electrolytes composed of, generally, from 1 to 99 wt % titanium or titanium alloy and the remainder lead or lead alloy, comprising a titanium-lead active layer, or a titanium-lead active layer covering and a core being made ... | 09/11/2001 |
| 6284191 | Method of manufacturing iron aluminide by thermomechanical processing of elemental powers A powder metallurgical process of preparing iron aluminide useful as electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high ... | 09/04/2001 |
| 6280684 | Sputtering target, method of producing the target, optical recording medium fabricated by using the sputtering target, and method of fabricating the optical recording medium A sputtering target for fabricating a recording layer of a phase-change type optical recording medium contains a compound or mixture including as constituent elements Ag, In, Te and Sb with the respective atomic percent (atom. %) of , ଲ, γ a... | 08/28/2001 |
| 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 a low temperature heating step to diffuse the coating int... | 06/26/2001 |
| 6248291 | Process for producing sputtering targets A process for producing sputtering targets, which comprises molding a mixture of a powder of a high-melting substance having a melting point of 900° C. or above with a powder of a low-melting metal having a melting point of 700° C. or below at a tempera... | 06/19/2001 |
| 6214080 | Powdered metal valve seat insert A powdered metal blend mixture for making a powdered metal part especially a valve seat insert. The mixture includes 15 to 30 wt. % of a valve steel powder, 0 to 10 wt. % nickel, 0 to 5 wt. % copper, 5 to 15 wt. % of a ferro-alloy powder, 0 to 15 wt. % of... | 04/10/2001 |
| 6168755 | High nitrogen stainless steel Disclosed is a high nitrogen stainless steel alloy and alloy powder comprising chromium (Cr), molybdenum (Mo), manganese (Mn), nickel (Ni), nitrogen (N) and iron (Fe). The composition of the stainless steel alloy and powder comprises between about 27 and ... | 01/02/2001 |
| 6045601 | Non-magnetic, high density alloy A high density, non-magnetic alloy is described along with a process for manufacturing it. The preferred composition for the alloy is approximately 95% by weight of tungsten and 5% of austenitic stainless steel. The process for manufacturing the alloy beg... | 04/04/2000 |
| 5980812 | Solid imaging process using component homogenization Solid objects are formed in an imagewise layering process in which components of a dispersion are homogenized to form an alloy. Imagewise exposure of the layers to radiation to form an alloy permits separation of the exposed, homogenized regions from non-... | 11/09/1999 |
| 5963771 | Method for fabricating intricate parts with good soft magnetic properties In the present invention, nickel and phosphorous are simultaneously plated onto the surface of iron powder, mixed iron and nickel powder, or iron-nickel pre-alloyed powder, to form iron-nickel-phosphorous ternary alloy powders with very uniform distributi... | 10/05/1999 |
| 5930583 | Method for forming titanium alloys by powder metallurgy This invention relates to a method for forming a titanium alloy by powder metallurgy, which comprises the processes of mixing uniformly a powder of titanium or an alloy thereof with a low-melting point metal or alloy powder, injecting the mixture into a p... | 07/27/1999 |
| 5926686 | Sintered products having improved density The present invention concerns low allow PM materials which after single pressing and sintering utilizing traditional powder metallurgy processes and equipment combine high mechanical strength and high density with maintained precision of tolerance. As ba... | 07/20/1999 |
| 5918104 | Production of tantalum-tungsten alloys production by powder metallurgy Powder metallurgy production of Ta10W alloy affording properties comparable to melt derived Ta10W, but at higher yields and lower costs, is enabled by blending component powders of minus 325 mesh and sintering at 2,400° C. in three sinter steps and utili... | 06/29/1999 |
| 5876481 | Low alloy steel powders for sinterhardening A steel powder consisting of a combination of purified steel and prealloyed manganese, chromium, molybdenum and nickel. The steel powder is used in the production of metal parts using powder metallurgy. The addition of the prealloyed elements results in a... | 03/02/1999 |
| 5872322 | Liquid phase sintered powder metal articles A method of making a structural iron-based article comprising: (a) blending a compressible base iron powder (max. particle size of 100 microns) a graphite powder to provide carbon in mixture, and a single master alloy powder (average particle size of 10 m... | 02/16/1999 |
| 5848349 | Method of modifying the properties of a metal matrix composite body The present invention relates to modifying the properties of a metal matrix composite body by a post formation process treatment and/or a substantially contiguous modification treatment. The post formation process treatment may be applicable to a variety ... | 12/08/1998 |
| 5822674 | Electrical contact material and method of making the same A material for electric contacts based on silver-tin oxide is obtained by mixing a powder of silver or an alloy mainly containing silver with a powder consisting mainly of tin oxide and 0.01 to 10 wt. % (in relation to the quantity of tin oxide) of an add... | 10/13/1998 |
| 5802437 | Production of metallic shaped bodies by injection molding Metallic shaped bodies are produced from an injection-molding composition comprising at least one carbonyl metal powder and at least one element powder of metals from the group Cr, Mn, V, Si, Ti or of other metals which are at least as oxidation-sensitive... | 09/01/1998 |
| 5744734 | Fabrication process for high temperature aluminum alloys by squeeze casting A method for fabricating articles of high-temperature aluminum alloys having a compressional strength of at least 20 kg/mm2 at temperatures of 300° C. or greater, is disclosed. The method comprises the steps of: (a) forming a porous preform fr... | 04/28/1998 |
