Mixture Contains Particles Of Nonmetal Patents (Class 75/252)
  • Patent number: 8303854
    Abstract: An object of the present invention is to provide a composition of a sintering Ag paste which can metallically bond to a nonprecious metal member with high strength as well as to a precious metal member, in a sintering Ag paste which metallically bonds to a metal at a low temperature, and to provide a bonding method to obtain a joint part having high strength. The sintering Ag paste is a material containing a solution of an organic silver complex that is easily decomposed by heat regardless of an atmosphere. Furthermore, the bonding method includes: metallizing a face of a nonprecious metal with Ag in a non-oxidizing atmosphere in a step prior to sintering Ag particles; and then sintering the Ag particles in an oxidizing atmosphere.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: November 6, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Ryoichi Kajiwara, Shigehisa Motowaki, Yusuke Asaumi
  • Publication number: 20120276393
    Abstract: A multiphase composite system is made by binding hard particles, such as TiC particles, of various sizes with a mixture of titanium powder and aluminum, nickel, and titanium in a master alloy or as elemental materials to produce a composite system that has advantageous energy absorbing characteristics. The multiple phases of this composite system include an aggregate phase of hard particles bound with a matrix phase. The matrix phase has at least two phases with varying amounts of aluminum, nickel, and titanium. The matrix phase forms a bond with the hard particles and has varying degrees of hard and ductile phases. The composite system may be used alone or bonded to other materials such as bodies of titanium or ceramic in the manufacture of ballistic armor tiles.
    Type: Application
    Filed: July 9, 2012
    Publication date: November 1, 2012
    Inventor: Robert G. LEE
  • Patent number: 8287615
    Abstract: A high-strength composition iron powder is prepared by mixing an iron base powder with 0.5 to 3.0 mass % of an Fe—Mn powder having a particle diameter of 45 ?m or less and a Mn content in the range of 60 to 90 mass %, 1.0 to 3.0 mass % of a Cu powder, 0.3 to 1.0 mass % of a graphite powder, and 0.4 to 1.2 mass % of a powder lubricant for die-forming while adjusting the ratio of the amount of Mn contained in the Fe—Mn powder to the amount of the Cu powder in the range of 0.1 to 1. The high-strength composition iron powder is press-formed and sintered at a temperature equal to or higher than the melting point of Cu to produce a high-strength sintered part having a tensile strength of 580 MPa or higher without using expensive alloying elements such as Ni and Mo.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: October 16, 2012
    Assignee: Kobe Steel, Ltd.
    Inventors: Masaaki Sato, Satoshi Furuta, Takahiro Kudo, Takehiro Tsuchida
  • Publication number: 20120255398
    Abstract: Iron-based metallurgical powders comprising vanadium are described, as well as compacted articles made thereof These articles have improved mechanical properties.
    Type: Application
    Filed: March 29, 2012
    Publication date: October 11, 2012
    Applicant: HOEGANAES CORPORATION
    Inventors: Christopher T. Schade, Bruce Lindsley, Thomas Murphy, Wing-Hong Chen
  • Patent number: 8283172
    Abstract: A lunar dust simulant containing nanophase iron and a method for making the same. Process (1) comprises a mixture of ferric chloride, fluorinated carbon powder, and glass beads, treating the mixture to produce nanophase iron, wherein the resulting lunar dust simulant contains ?-iron nanoparticles, Fe2O3, and Fe3O4. Process (2) comprises a mixture of a material of mixed-metal oxides that contain iron and carbon black, treating the mixture to produce nanophase iron, wherein the resulting lunar dust simulant contains ?-iron nanoparticles and Fe3O4.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: October 9, 2012
    Assignee: The United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Chin-cheh Hung, Jeremiah McNatt
  • Patent number: 8277534
    Abstract: Disclosed is a method of: providing a mixture of a polymer or a resin and a transition metal compound, producing a fiber from the mixture, and heating the fiber under conditions effective to form a carbon nanotube-containing carbonaceous fiber. The polymer or resin is an aromatic polymer or a precursor thereof and the mixture is a neat mixture or is combined with a solvent. Also disclosed are a carbonaceous fiber or carbonaceous nanofiber sheet having at least 15 wt. % carbon nanotubes, a fiber or nanofiber sheet having the a polymer or a resin and the transition metal compound, and a fiber or nanofiber sheet having an aromatic polymer and metal nanoparticles.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 2, 2012
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Teddy M Keller, Matthew Laskoski
  • Patent number: 8277533
    Abstract: A most preferred composition for the mixture, prior to sintering into an article (ideally a valve seat insert), is as follows: 35% hard phase, 65% matrix (excepting incidental impurities), the hard phase component being 2.2% C, 29.1% Cr, 4.9% Co, 5.3% Ni, 20.2% W with the balance being Fe and allowing less than 2% for one or more machinability aids and solid lubricants, and the matrix component being one of a high chrome steel powder (e.g. 18% Cr, 1% Ni, 2.5% Mo, balance Fe), a low alloy steel powder (3% Cu, 1% C, balance Fe; 3% Cr, 0.5% Mo, 1% C, balance Fe; 4% Ni, 1.5% Cu, 0.5% Mo, 1% C, balance Fe; 4% Ni, 2% Cu, 1.4% Mo, 1% C, balance Fe), or a tool steel powder (5% Mo, 6% W, 4% Cr, 2% V, 1% C, balance Fe), or a low-alloy steel powder as above but which issued in conjunction with a copper infiltration process during sintering.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: October 2, 2012
    Assignee: Federal-Mogul Sintered Products Limited
    Inventors: Leslie John Farthing, Paritosh Maulik
  • Patent number: 8257462
    Abstract: A powder metal material comprises pre-alloyed iron-based powder including carbon present in an amount of 0.25 to 1.50% by weight of the pre-alloyed iron-based powder. Graphite is admixed in an amount of 0.25 to 1.50% by weight of the powder metal material. The admixed graphite includes particles finer than 200 mesh in an amount greater than 90.0% by weight of the admixed graphite. Molybdenum disulfide is admixed in an amount of 0.1 to 4.0% by weight of the powder metal material, copper is admixed in an amount of 1.0 to 5.0% by weight of the powder metal material, and the material is free of phosphorous. The powder metal material is then compacted and sintered at a temperature of 1030 to 1150° C. At least 50% of the admixed graphite of the starting powder metal material remains as free graphite after sintering.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: September 4, 2012
    Assignee: Federal-Mogul Corporation
    Inventors: Denis Boyd Christopherson, Jr., Leslie John Farthing, Jeremy Raymond Koth
  • Patent number: 8236088
    Abstract: Providing a metal mold repair method and a metal mold repair paste agent which are capable of repairing cracks with simple work. A repair paste agent containing components that become an alloy is directly applied to a surface of a metal mold having a crack so as to cover the crack part, subsequently a surface of the repair paste agent is coated with an oxidation inhibitor and the repair paste agent is made to penetrate the inside of the crack by heating and becomes an alloy, thereby filling up the crack.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: August 7, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Michiharu Hasegawa, Noriyuki Miyazaki, Masafumi Nakamura, Naoji Yamamoto, Kazuo Ueda
  • Patent number: 8236087
    Abstract: The present invention relates to an iron-base powder for a powder core, wherein when cross-sections of at least 50 iron-base powders are observed and a crystal grain size distribution containing at least a maximum crystal grain size is determined by measuring a crystal grain size of each iron-base powder, 70% or more of the measured crystal grains are a crystal grain having a crystal grain size of 50 ?m or more. According to the iron-base powder of the invention, a coercivity of the powder core can be made small and a hysteresis loss can be reduced.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: August 7, 2012
    Assignees: Kobe Steel, Ltd., Hitachi Powdered Metals Co., Ltd.
    Inventors: Hiroyuki Mitani, Nobuaki Akagi, Hirofumi Houjou, Chio Ishihara, Makoto Iwakiri, Sohei Yamada, Yasukuni Mochimizo
  • Patent number: 8226740
    Abstract: An inorganic material that consists of at least two elementary spherical particles, each of said spherical particles comprising metal nanoparticles that are between 1 and 300 nm in size and a mesostructured matrix with an oxide base of at least one element X that is selected from the group that consists of aluminum, titanium, tungsten, zirconium, gallium, germanium, tin, antimony, lead, vanadium, iron, manganese, hafnium, niobium, tantalum, yttrium, cerium, gadolinium, europium and neodymium is described, whereby said matrix has a pore size of between 1.5 and 30 nm and has amorphous walls with a thickness of between 1 and 30 nm, said elementary spherical particles having a maximum diameter of 10 ?m. Said material can also contain zeolitic nanocrystals that are trapped within said mesostructured matrix.
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: July 24, 2012
    Assignee: IFP Energies nouvelles
    Inventors: Alexandra Chaumonnot, Aurelie Coupe, Clement Sanchez, Cedric Boissiere, David Grosso
  • Publication number: 20120183428
    Abstract: A method for preparing a porous metal article using a powder metallurgy forming process is provided which eliminates the conventional steps associated with removing residual carbon. The method uses a feedstock that includes a ferrous metal powder and a polycarbonate binder. The polycarbonate binder can be removed by thermal decomposition after the metal article is formed without leaving a carbon residue.
    Type: Application
    Filed: January 13, 2011
    Publication date: July 19, 2012
    Inventor: Curtis Jack Miller
  • Patent number: 8221518
    Abstract: The present invention provides electrically and thermally conductive compositions for forming interconnections between electronic elements. Invention compositions comprise three or more metal or metal alloy particle types and an organic vehicle comprising a flux that is application specific. The first particle type includes a reactive high melting point metal that reacts with a reactive low melting point metal(s) in the other particles to form intermetallic species. The reactive low melting point metal(s) of the invention are provided in two distinct particle forms. The first reactive low melting point metal particle includes a carrier that facilitates the reaction with the reactive high melting point metal. The second reactive low melting point metal particle acts primarily as a source of the reactive low melting point metal.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 17, 2012
    Assignee: Ormet Circuits, Inc.
    Inventors: Catherine Shearer, Kenneth C. Holcomb, G. Delbert Friesen, Michael C. Matthews
  • Patent number: 8211203
    Abstract: A matrix powder for forming a matrix bit body, the matrix powder essentially consisting of a plurality of carbide particles having a particle size distribution of ±20% of a median particle size; and a plurality of metal binder particles is disclosed.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: July 3, 2012
    Assignee: Smith International, Inc.
    Inventors: Xiayang Sheng, Alan W. Lockstedt, Gregory T. Lockwood
  • Patent number: 8211202
    Abstract: The present invention relates to a gas-absorbing substance that contains at least Li and a solid material having a hardness of 5 or more, and absorbs at least nitrogen or oxygen at 25° C. under normal pressure, and a gas-absorbing alloy that contains at least two kinds of metals that are not allowed to mutually form an intermetallic compound, with a mixing enthalpy of the two kinds of metals being greater than 0 and at least one portion of the two kinds of metals being atomically mixed, and also concerns a gas-absorbing material that contains the gas-absorbing substance and the gas-absorbing alloy.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: July 3, 2012
    Assignees: Panasonic Corporation, Kyoto University
    Inventors: Chie Hirai, Kazutaka Uekado, Akiko Yuasa, Akihiro Nozue, Hideyuki Okumura, Keiichi Ishihara, Eiji Yamasue
  • Publication number: 20120156082
    Abstract: This invention relates to power metallurgical material, production method and application thereof. A metallurgy powder material with pressure-proof & good compactness, satisfactory to the component content requirements for 316 stainless steel, wherein, 5˜9% (by weight) of Fe3P (or Fe3PO4). The powder metallurgical material has properties of pressure resistance and corrosion resistance, and excellent compactness.
    Type: Application
    Filed: June 22, 2010
    Publication date: June 21, 2012
    Inventors: Hongqi Chen, Jingtao Fei
  • Publication number: 20120128523
    Abstract: A clay-like composition for forming a sintered copper body of the present invention includes a powder constituent containing a copper-containing metal powder which contains copper and a copper-containing oxide powder which contains copper; a binder; and water, wherein the amount of oxygen contained in the powder constituent is in a range of from 4 mass % to 8 mass %.
    Type: Application
    Filed: November 17, 2011
    Publication date: May 24, 2012
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Takashi Yamaji, Yoshifumi Yamamoto, Yasuo Ido, Shinji Otani
  • Publication number: 20120125154
    Abstract: The present invention provides compositions and methods of making Sn-MCx-C and Sb-MOx-C nanostructured anode compositions that exhibit excellent capacity retention with high capacity and rate capability that alleviate the volume expansion encountered with alloy anodes during the charge-discharge process.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 24, 2012
    Inventors: Arumugam Manthiram, Sukeun Yoon
  • Patent number: 8177878
    Abstract: A bonding material including a meltable joining material and a plurality of heterostructures distributed throughout the meltable joining material, the heterostructures comprising at least a first material and a second material capable of conducting a self-sustaining exothermic reaction upon initiation by an external energy to generate heat sufficient to melt the meltable joining material.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: May 15, 2012
    Assignee: Infineon Technologies AG
    Inventors: Alexander Heinrich, Thorsten Scharf, Edmund Riedl, Steffan Jordan
  • Publication number: 20120111146
    Abstract: In an iron-based powder, 0.01% to 5.0% by mass of a flaky powder having an average particle size of longitudinal size of 100 or less, a thickness of 10 ?m or less, and an aspect ratio (longitudinal size-to-thickness ratio) of 5 or more with respect to the iron-based mixed powder is contained, whereby the flowability of an iron-based mixed powder is increased, the density of a green compact is increased, and ejection force is greatly reduced after compaction, thereby accomplishing an increase in product quality and a reduction in production cost.
    Type: Application
    Filed: May 27, 2010
    Publication date: May 10, 2012
    Applicant: JFE STEEL CORPORATION
    Inventors: Takashi Kawano, Shigeru Unami, Tomoshige Ono, Yukiko Ozaki
  • Publication number: 20120107628
    Abstract: Provided is a composite nanometal paste which, when a layer of the paste interposed between upper and lower bodies is sintered in an inert gas under no load until the layer turns to a metal layer, attains a shear bond strength between the upper and lower bodies of 10 MPa or higher. The composite nanometal paste contains, as metallic components, composite metallic nanoparticles comprising metal cores with an average particle diameter of X (nm) and an organic coating layer formed around the circumference, metallic nanofiller particles having an average particle diameter of d (nm), and metallic filler particles having an average particle diameter of D (nm), and satisfies the first relation X<d<D and the second relation X<d<100 (nm).
    Type: Application
    Filed: April 27, 2010
    Publication date: May 3, 2012
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, APPLIED NANOPARTICLE LABORATORY CORPORATION
    Inventors: Teruo Komatsu, Yoshinori Shibata, Hideo Nakamura, Masashi Furukawa, Ryosuke Gomi, Mitsuhiro Kanou, Tsukasa Sugie, Narutaka Kasuya, Shuhei Yamaguchi, Toshitaka Ishizaki, Tadashi Oshima, Hisaaki Takao, Naotoshi Tominaga
  • Publication number: 20120093675
    Abstract: A powder mixture composition for forming a jewelry article is described, comprising about 20-44% by weight tungsten carbide, and one or more of titanium carbide, chromium, nickel, and molybdenum. Methods of forming a jewelry article also are described, as are formed jewelry articles.
    Type: Application
    Filed: October 14, 2010
    Publication date: April 19, 2012
    Inventor: Glenn A. Miller
  • Publication number: 20120085201
    Abstract: In an iron-based powder, 0.01% to 5.0% by mass of oxide particles having an average size of 0.5 ?m or more are contained, whereby the flowability of an iron-based mixed powder is increased and thereby the density of a green compact is increased, and ejection force is greatly reduced after compaction, thereby accomplishing an increase in product quality and a reduction in production cost.
    Type: Application
    Filed: June 25, 2010
    Publication date: April 12, 2012
    Applicant: JFE STEEL CORPORATION
    Inventors: Takashi Kawano, Tomoshige Ono, Yukiko Ozaki
  • Publication number: 20120082587
    Abstract: A water-atomised iron-based steel powder is provided which comprises by weight-%: 0.45-1.50 Ni, 0.30-0.55 Mo, less than 0.3 Mn, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, less than 0.5 of unavoidable impurities, and the balance being iron, and where Ni and Mo have been alloyed by a diffusion alloying process.
    Type: Application
    Filed: May 21, 2010
    Publication date: April 5, 2012
    Applicant: HOGANAS AB (PUBL)
    Inventors: Yang Yu, Norimitsu Hirose
  • Publication number: 20120031233
    Abstract: A lubricant for use in a powder mixture is disclosed. This lubricant contains carnauba wax and at least one plant- or animal-based fat. A powder mixture using this lubricant can be used to compact green parts have higher densities and helps to improve the life of the tools compacting the powder.
    Type: Application
    Filed: September 14, 2011
    Publication date: February 9, 2012
    Inventors: René Lindenau, Lars Wimbert
  • Patent number: 8110020
    Abstract: An annealed pre-alloyed water atomised iron-based powder suitable for the production of pressed and sintered components having high wear resistance is provided. The iron-based powder comprises 10-below 18% by weight of Cr, 0.5-5% by weight of each of at least one of Mo, W, V and Nb, and 0.5-2%, preferably 0.7-2% and most preferably 1-2% by weight of C. The powder has a matrix comprising less than 10% by weight of Cr, and comprises large M23C6-type carbides in combination with M7C3-type carbides. A method for production of the iron-based powder, a method for producing a pressed and sintered component having high wear resistance, and a component having high wear resistance are provided.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: February 7, 2012
    Assignee: Höganäs AB (PUBL)
    Inventors: Ola Bergman, Paul Dudfield Nurthen
  • Publication number: 20120003465
    Abstract: A sintering material having metallic structural particles which are provided with an organic coating. Non-organically coated, metallic and/or ceramic auxiliary particles are provided that do not outgas during the sintering process. A sintered bond, as well as a method for producing a sintered bond.
    Type: Application
    Filed: January 4, 2010
    Publication date: January 5, 2012
    Inventors: Martin Rittner, Michael Guenther
  • Publication number: 20110318214
    Abstract: A water atomised prealloyed chromium-free, iron-based steel powder is provided which comprises by weight-%: 0.05-0.4 V, 0.09-0.3 Mn, less than 0.1 Cr, less than 0.1 Mo, less than 0.1 Ni, less than 0.2 Cu, less than 0.1 C, less than 0.25 O, and less than 0.5 of unavoidable impurities, with the balance being iron.
    Type: Application
    Filed: March 15, 2010
    Publication date: December 29, 2011
    Applicant: HOGANAS AB (PUBL)
    Inventor: Sven Bengtsson
  • Publication number: 20110314964
    Abstract: There is disclosed a compound for powder metallurgy including a binder composition for powder metallurgy and a metal powder. The binder composition for powder metallurgy includes a hydrocarbon-based resin and wax, wherein the content of oxygen is 20 mass % or less. The content of the hydrocarbon-based resin in the compound for powder metallurgy is 1 to 2 times the content of the wax, by mass ratio. It is preferable that the binder composition further includes a copolymer formed through a copolymerization of a first monomer including a cyclic ether group with a second monomer.
    Type: Application
    Filed: June 24, 2011
    Publication date: December 29, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Hideki ISHIGAMI, Masaaki SAKATA, Junichi HAYASHI, Hidefumi NAKAMURA
  • Patent number: 8083832
    Abstract: A composite paste for forming interconnects that includes a quantity of metallic binder particles, a quantity of metallic filler particles, and a quantity of flux, where the binder particles comprise no more than 94.5% of the total weight of the quantity of the composite paste, and the total weight of the filler particles and the flux comprise the balance of the total weight of the quantity of the composite paste, where the flux is no more than 10% of the total weight of the flux and the filler particles.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: December 27, 2011
    Assignee: International Rectifier Corporation
    Inventor: Martin Standing
  • Publication number: 20110311820
    Abstract: A hardfacing composition (32) that includes a plurality of hard particles (54) wherein the hard particles (54) include a mode particle size distribution, one particle size distribution smaller than the mode particle size distribution, and an other particle size distribution larger than the mode particle size distribution. There is an absence of any substantial fluctuations in the particle size distribution between the mode particle size distribution and the one particle size distribution. There is an absence of any substantial fluctuations in the particle size distribution between the mode particle size distribution and the other particle size distribution.
    Type: Application
    Filed: August 30, 2011
    Publication date: December 22, 2011
    Applicant: Kennametal Inc.
    Inventor: Moira E. MacLeod
  • Patent number: 8075664
    Abstract: Metal nanostructures formed by photocatalytic interfacial synthesis using a porphyrin-stabilized emulsion template and the method for making the nanostructures. Catalyst-seeded emulsion droplets are employed as templates for hollow-nanoshell growth. The hollow metal nanospheres may be formed with or without inclusions of other materials.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: December 13, 2011
    Assignee: Sandia Corporation
    Inventors: Haorong Wang, Yujiang Song, John A. Shelnutt, Craig J. Medforth
  • Patent number: 8066795
    Abstract: A thermal spray powder including cermet particles, each of which contains metal containing at least one selected from the group consisting of cobalt, chrome, and nickel, and tungsten carbide. The ratio of the summed weight of cermet particles having a particle size of 25 ?m or more in the thermal spray powder with respect to the summed weight of the entire cermet particles in the thermal spray powder is 0.5 to 15%. A thermal spray coating formed from the thermal spray powder is suitable for the formation of a tungsten carbide-based cermet thermal spray coating for use in rolls such as corrugated rolls.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: November 29, 2011
    Assignee: Fujimi Incorporated
    Inventors: Hiroaki Mizuno, Junya Kitamura
  • Publication number: 20110283832
    Abstract: Iron-based powder metallurgical compositions including both iron-copper prealloy and copper powder are described. These compositions, when compacted and sintered, result in compacts having good dimensional consistency.
    Type: Application
    Filed: May 17, 2011
    Publication date: November 24, 2011
    Applicant: HOEGANAES CORPORATION
    Inventor: Bruce Lindsley
  • Publication number: 20110286873
    Abstract: The composition includes the iron as the main particulate metallic material; at least one particulate alloy element, with the function of hardening the ferrous structural matrix; and a precursor non-metallic particulate compound, generally a carbide or a carbonate, which is capable of generating, upon its dissociation during the sintering, graphite nodules, whose formation is facilitated: by the precursor compound itself when it includes a chemical element which stabilizes the iron alpha phase of the ferrous structural matrix; or by an additional alloy element included in the composition and which is defined by a chemical element that stabilizes the iron alpha phase during the sintering. The composition can be conformed by compaction or by powder injection molding. The process of the invention leads to obtaining products in self-lubricating sintered steel from said composition.
    Type: Application
    Filed: December 9, 2009
    Publication date: November 24, 2011
    Inventors: Roberto Binder, Aloisio Nelmo Klein, Cristiano Binder, Waldyr Ristow Junior
  • Publication number: 20110265602
    Abstract: An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and composite lubricant particles, with the composite lubricant particles comprising a core of 10-60% by weight of at least one primary fatty acid amide having more than 18 and not more than 24 carbon atoms and 40-90% by weight of at least one fatty acid bisamide, with the core having nanoparticles of at least one metal oxide adhered thereon. Further provided is a particulate composite lubricant as well as a method of preparing such lubricant.
    Type: Application
    Filed: November 25, 2009
    Publication date: November 3, 2011
    Inventors: Asa Ahlin, Anna Ahlquist, Karin Olsson
  • Publication number: 20110260565
    Abstract: An alloy material for an R-T-B based rare earth permanent magnet of the present invention includes: an R-T-B based alloy that comprises R, T, and B (wherein R represents at least one selected from the group consisting of Nd, Pr, Dy, and Tb, with Dy or Tb being essentially contained at 4% by mass to 10% by mass in the R-T-B type alloy; T represents a transition metal which essentially contains Fe; and B represents boron, a part of which can be substituted by carbon or nitrogen); and a high melting point compound having a melting point of 1080° C. or higher.
    Type: Application
    Filed: December 14, 2009
    Publication date: October 27, 2011
    Applicant: SHOWA DENKO K.K.
    Inventor: Kenichiro Nakajima
  • Publication number: 20110262294
    Abstract: An iron-based powder composition is provided comprising, in addition to an iron-based powder, a minor amount of a machinability improving additive comprising at least one silicate from the group of phyllosilicates. The technology further concerns the use of the machinability improving additive and a method for producing an iron-based sintered part having improved machinability.
    Type: Application
    Filed: December 21, 2009
    Publication date: October 27, 2011
    Applicant: HOGANAS AB (PUBL)
    Inventors: Olof Andersson, Bo Hu
  • Publication number: 20110252922
    Abstract: A method is provided for producing a diffusion alloyed powder consisting of an iron or iron-based core powder having particles of an alloying powder containing Cu and Ni bonded to the surface of the core particles, comprising providing a unitary alloying powder capable of forming particles of a Cu and Ni containing alloy, mixing the unitary alloying powder with the core powder, and heating the mixed powders in a non-oxidizing or reducing atmosphere to a temperature of 500-1000° C. during a period of 10-120 minutes to convert the alloying powder into a Cu and Ni containing alloy, so as to diffusion bond particles of the Cu and Ni alloy to the surface of the iron or iron-based core powder. The alloying powder may be a Cu and Ni alloy, oxide, carbonate or other suitable compound that on heating will form a Cu and Ni alloy.
    Type: Application
    Filed: December 16, 2009
    Publication date: October 20, 2011
    Inventor: Mats Larsson
  • Patent number: 8038760
    Abstract: A method for producing a metal article according to one embodiment may involve the steps of: Providing a composite metal powder including a substantially homogeneous dispersion of molybdenum and molybdenum disulfide sub-particles that are fused together to form individual particles of the composite metal powder; and compressing the molybdenum/molybdenum disulfide composite metal powder under sufficient pressure to cause the mixture to behave as a nearly solid mass.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: October 18, 2011
    Assignee: Climax Engineered Materials, LLC
    Inventors: Matthew C. Shaw, Carl V. Cox, Yakov Epshteyn
  • Publication number: 20110250089
    Abstract: A clayish composition for forming a sintered silver alloy body capable of forming a sintered silver alloy body, which is not easily discolored even in the atmosphere and has excellent tensile strength, flexural strength, surface hardness (hereinafter, sometimes collectively referred to as ‘mechanical strength’), elongation or the like, powder for the clayish composition for forming a sintered silver alloy body, a method for manufacturing the clayish composition for forming a sintered silver alloy body, a sintered silver alloy body and a method for manufacturing the sintered silver alloy body.
    Type: Application
    Filed: January 28, 2011
    Publication date: October 13, 2011
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Takashi Yamaji, Yasuo Ido, Shinji Otani
  • Patent number: 8034156
    Abstract: 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 mixed in a ball mill to produce a copper salt-containing iron particle powder in which the particles of the two powders are joined. In this case, the method for producing the decomposer of an organic halogenated compound is characterized in that the iron powder is mechanically deformed to give the particles a flat shape.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: October 11, 2011
    Assignee: Dowa Eco-System Co., Ltd.
    Inventors: Masami Kamada, Taishi Uehara
  • Publication number: 20110212339
    Abstract: The metallurgical composition includes a main particulate metallic material, for example iron or nickel, and at least one alloy element for hardening the main metallic material, which form a structural matrix; a particulate solid lubricant, such as graphite, hexagonal boron nitride or mixture thereof; and a particulate alloy element which is capable of forming, during the sintering of the composition conformed by compaction or by injection molding, a liquid phase, agglomerating the solid lubricant in discrete particles. The composition may include an alloy component to stabilize the alpha-iron matrix phase, during the sintering, in order to prevent the graphite solid lubricant from being solubilized in the iron. The invention further refers to a self-lubricating sintered product, obtained from the composition, and to the process for obtaining said product.
    Type: Application
    Filed: September 9, 2009
    Publication date: September 1, 2011
    Inventors: Roberto Binder, Aloisio Nelmo Klein, Cristiano Binder, Gisele Hammes, Moises Luiz Parucker, Waldyr Ristow Junior
  • Publication number: 20110209575
    Abstract: A granulated powder includes a metal powder and an organic binder and is obtained by binding a plurality of metal particles in the metal powder to one another by the organic binder. The organic binder contains polyvinyl alcohol or a derivative thereof and a polyol. Further, the ratio of the apparent density of the granulated powder to the true density of the metal powder (a metal material constituting the metal powder) is from 20% to 50%. Further, as the polyol, glycerin is preferred, and the amount thereof is preferably from 0.01 to 0.2 parts by weight based on 100 parts by weight of the metal powder.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 1, 2011
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Takeshi KADOMURA
  • Patent number: 7998230
    Abstract: A multi-metal powder, in particular for producing diamond tools comprises iron copper, cobalt and molybdenum whose contents are expressed in the following mass percentages: Fe+Cu+Co+Mo=98 mass %, the rest being oxygen and production impurities, wherein 15%=Cu=35%, 0.03=Mo/(Co+Fe+Mo)=0.10, —Fe/Co=2. A sintered compact is obtained by hot compaction of said multi-metal powder, for example, in the form of a diamond cutting tool.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: August 16, 2011
    Assignee: Eurotungstene Poudres
    Inventors: Maxime Bonneau, Jean-François Lartigue, Thierry Commeau, Christian Huet
  • Patent number: 7993429
    Abstract: An iron-based powder metallurgical composition is provided comprising an iron or iron-based powder and a particulate composite lubricant, the composite lubricant comprising particles having a core comprising a solid organic lubricant having fine carbon particles adhered thereon. A particulate composite lubricant and a method for producing the same also are provided.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: August 9, 2011
    Assignee: Höganäs AB (PUBL)
    Inventors: Åsa Ahlin, Anna Ahlquist, Per-Olof Larsson, Naghi Solimnjad
  • Publication number: 20110176952
    Abstract: The aim of the invention is to devise a binder that is an alternative to prior art binders for producing sintered molded articles. Said aim is achieved by a binder comprising a first substance that has a first melting point and a first vapor pressure at 80° C. and a second substance that has a second melting point and a second vapor pressure at 80° C., the maximum melting point of the first and second substance amounting to about 150° C., and the minimum vapor pressure of the first and second substance amounting to about 5 torr (667 Pa) at 80° C.
    Type: Application
    Filed: February 14, 2011
    Publication date: July 21, 2011
    Applicant: GKN SINTER METALS HOLDING GMBH
    Inventors: Vladislav Kruzhanov, Lars Wimbert, Nicola De Cristofaro
  • Publication number: 20110123382
    Abstract: A method for providing a porous metal implant. A mixture of a biocompatible metal, a spacing agent, and a binder is provided. The mixture is formed into a shaped the spacing agent is removed to form a plurality of pores in the implant. A shaped porous metal implant is also provided.
    Type: Application
    Filed: February 7, 2011
    Publication date: May 26, 2011
    Applicant: Biomet Manufacturing Corp.
    Inventors: Ned M. Hamman, J. Fleming, Elizabeth A. Schlueter, Isaac Janson, Jason D. Meridew, Mukesh Kumar
  • Patent number: 7946467
    Abstract: A braze material and processes for making and using the material, such as for use in the manufacturing, coating, repair, and build-up of superalloy components. The braze material is composed of particles with melt-modifying constituents that are limited to the surfaces of the particles, yet are capable of sufficiently promoting the heating of the particles by conventional means and microwave radiation to achieve at least partial melting of the particles. The melt-modifying constituents are in the form of particulates embedded in the outer surface region of each particle. The particulates are formed of melting point depressant(s) and/or microwave coupling enhancer(s), are much smaller than the particle in which they are embedded.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: May 24, 2011
    Assignee: General Electric Company
    Inventor: Laurent Cretegny
  • Publication number: 20110103995
    Abstract: A pre-alloyed iron-based powder is provided including small amounts of alloying elements which make possible a cost efficient manufacture of sintered parts. The pre-alloyed iron-based powder comprises 0.2-1% by weight of Cr, 0.05-0.3% by weight of Mo, 0.1-1% by weight of Ni, 0.09-0.3% by weight of Mn, 0.01% by weight or less of C, less than 0.25% by weight of O, and less than 1% by weight of inevitable impurities, the balance being iron.
    Type: Application
    Filed: June 5, 2009
    Publication date: May 5, 2011
    Applicant: HOGANAS AB (PUBL)
    Inventors: Alexander Klekovkin, David Milligan, Nagarjuna Nandivada