With Another Nonmetal Patents (Class 75/233)
  • Patent number: 10981837
    Abstract: The invention relates to a grain for production of a refractory product, to the use of such grains, to a refractory product, to a process for producing a refractory product and to a refractory product produced thereby.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: April 20, 2021
    Assignee: Refractory Intellectual Property GmbH & Co. KG
    Inventors: Christoph Bauer, Norbert Freiberger
  • Patent number: 10487251
    Abstract: A friction material having 40 mass % or more to 80 mass % or less of a matrix of at least one of a metal, an alloy, a metal compound and an intermetallic compound; 5 mass % or more to 30 mass % or less of solid particles of at least one of a carbide, a nitride, an oxide and a sulfide; and 5 mass % or more to 40 mass % or less of a lubricant wherein: the matrix comprises, as elements, at least, 20 mass % or more to 50 mass % or less of Fe, 0.05 mass % or more to 5.0 mass % or less of P, and 40 mass % or more to 75 mass % or less of Ni, based on a total amount of the matrix; and a content of Cu as an element is 15 mass % or less based on a total amount of the matrix.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: November 26, 2019
    Inventor: Mitsuo Kamei
  • Patent number: 10465266
    Abstract: The present heat-resistant tungsten alloy has a first phase containing W as a major component, a second phase having a carbonitride of at least one element of Ti, Zr and Hf and containing the carbonitride as a major component when W is removed, and a third phase having a carbide of at least one element of group 5A elements in the periodic table and containing the carbide as a major component when W is removed, the heat-resistant tungsten alloy having a Vickers hardness of 550 Hv or more at a room temperature, a displacement of 1 mm or more when leading to fracture, as determined in a three point bending test at 1200° C., and a 0.2% proof stress of 900 MPa or more, as determined in the three point bending test at 1200° C.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: November 5, 2019
    Assignee: A.L.M.T. CORP.
    Inventors: Ayuri Tsuji, Shigekazu Yamazaki, Akihiko Ikegaya, Noboru Uenishi
  • Patent number: 10279438
    Abstract: A method of making pre-sintered preforms using a mixture of base superalloy particles and titanium-containing boron and silicon free braze alloy particles, such as for the repair of superalloy gas turbine engine components. Alloy particles as large as 2 mm provide reduced shrinkage when compared to prior art preforms. Braze material compositions disclosed herein are boron and silicon free and may have melting temperature ranges as low as 10° C., and they include no element not already present in the composition of the superalloy component.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: May 7, 2019
    Assignee: SIEMENS ENERGY, INC.
    Inventors: Kazim Ozbaysal, Ahmed Kamel
  • Patent number: 10011893
    Abstract: Provided are a ferritic/martensitic oxide dispersion strengthened steel with increased high temperature creep resistance, including 0.02 to 0.2 wt % of carbon (C), 8 to 12 wt % of chromium (Cr), 0.1 to 0.5 wt % of yttria (Y2O3), 0.2 to 2 wt % of molybdenum (Mo), 0.01 to 0.5 wt % of titanium (Ti), 0.01 to 1 wt % of manganese (Mn), 0.01 to 0.3 wt % of vanadium (V), 0 to 0.3 wt % of zirconium (Zr), 0 to 0.5 wt % of nickel (Ni), and the remaining content of iron (Fe), and a method of manufacturing the same. The ferritic/martensitic oxide dispersion strengthened steel may be useful as a material for core structural components of a nuclear power system, ultra supercritical pressure steam generator components of a thermal power plant, or engine components of an airplane due to a high tensile strength at 700° C. and excellent creep resistance.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: July 3, 2018
    Assignee: Korea Atomic Energy Research Institute
    Inventors: Tae Kyu Kim, Sanghoon Noh, Byoung-Kwon Choi, Ki-Baik Kim, Yong-Hwan Jeong
  • Patent number: 9789663
    Abstract: A metal composite comprises: a first matrix comprising magnesium, a magnesium alloy, or a combination thereof; a second matrix comprising aluminum, an aluminum alloy, steel, a zinc alloy, a tin alloy, or a combination comprising at least one of the foregoing; a corrosion reinforcement material; and a boundary layer disposed between the first matrix and the second matrix; wherein the boundary layer has a thickness of 10 nm to 200 ?m.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: October 17, 2017
    Inventors: Zhihui Zhang, Zhiyue Xu
  • Patent number: 9305676
    Abstract: A composite material includes a metal matrix of a metal and a reducing agent. The reducing agent is dispersed in the metal matrix and is capable of reducing an oxide of the metal at room temperature.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: April 5, 2016
    Inventor: Toshihiro Miyake
  • Patent number: 9246030
    Abstract: A conductive silver via paste comprising particulate conductive silver, a vanadium-phosphorus-oxide and an organic vehicle is particularly useful in providing the metallization of the holes in the silicon wafers of MWT solar cells. The result is a metallic electrically conductive via between the collector lines on the front side and the emitter electrode on the back-side of the solar cell. The paste can also be used to form the collector lines on the front-side of the solar cell and the emitter electrode on the back-side of the solar cell. Also disclosed are metal-wrap-through silicon solar cells comprising the fired conductive silver paste.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: January 26, 2016
    Inventors: Brian J Laughlin, Yueli Wang, Cengiz Ahmet Palanduz, Terry Roland Suess
  • Patent number: 9178212
    Abstract: A composite anode active material including metal core particles and carbon nanotubes that are covalently bound to the metal core particles, an anode including the composite anode active material, a lithium battery employing the anode, and a method of preparing the composite anode active material.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: November 3, 2015
    Inventors: Jeong-Hee Lee, Jeong-Na Heo, Ho-Suk Kang, Sang-Kook Mah, In-Taek Han
  • Publication number: 20150132174
    Abstract: Dielectric rare earth fluorides are blended with rare earth magnet powders to produce high-resistivity fluoride composite rare earth magnets.
    Type: Application
    Filed: June 30, 2014
    Publication date: May 14, 2015
    Inventors: Melania Marinescu, Jinfang Liu, Alksandr Gabay, George C. Hadjipanyis
  • Publication number: 20150107411
    Abstract: An Fe-based magnetic material sintered compact containing BN, wherein the Fe-based magnetic material sintered compact has an oxygen content of 4000 wtppm or less. The present invention provides a sintered compact which enables the formation of a magnetic thin film in a thermally assisted magnetic recording media, and in which the generation of cracks and chipping is suppressed when the sintered compact is processed into a sputtering target or the like.
    Type: Application
    Filed: August 6, 2013
    Publication date: April 23, 2015
    Inventor: Shini-ichi Ogino
  • Publication number: 20150110663
    Abstract: A cBN material and a method of making a cBN material, the method including the steps of providing a powder mixture comprising cBN grains, aluminum and a Ti(CxNyOz)a powder, subjecting the powder mixture to a milling to form a powder blend, subjecting the powder blend to a forming operation to form a green body, subjecting the green body to a pre-sintering step, at a temperature between 650 to 950° C., to form a pre-sintered body, and subjecting the pre-sintered body to a HPHT operation to form the cBN material. For the Ti(CxNyOz)a powder, 0.05?z?0.4. In addition, a cBN material includes cBN grains, an Al2O3 phase, a binder phase of TiC, TiN and/or TiCN, W and Co, whereby a quotient Q is <0.25 of the cBN material.
    Type: Application
    Filed: May 31, 2013
    Publication date: April 23, 2015
    Inventors: Gerold Weinl, Annika Kauppi, Malin Martensson, Torbjorn Selinder, Rui Shao
  • Publication number: 20150004043
    Abstract: An alloy and method of forming the alloy are provided. The alloy includes a matrix phase, and a population of particulate phases dispersed within the matrix. The matrix includes iron and chromium; and the population includes a first subpopulation of particulate phases and a second subpopulation of particulate phases. The first subpopulation of particulate phases include a complex oxide, having a median size less than about 20 nm, and present in the alloy in a concentration from about 0.1 volume percent to about 5 volume percent. The second subpopulation of particulate phases have a median size in a range from about 30 nm to about 10 microns, and present in the alloy in a concentration from about 1 volume percent to about 15 volume percent.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 1, 2015
    Inventors: Richard DiDomizio, Matthew Joseph Alinger, Laura Cerully Dial
  • Publication number: 20140294653
    Abstract: The present application discloses a martensitic oxide dispersion-strengthened alloy having enhanced high-temperature strength and creep properties. The alloy includes chromium (Cr) of 8 to 12% by weight, yttria (Y2O3) of 0.1 to 0.5% by weight, carbon (C) of 0.02 to 0.2% by weight, molybdenum (Mo) of 0.2 to 2% by weight, titanium (Ti) of 0.01 to 0.3% by weight, zirconium (Zr) of 0.01 to 0.2% by weight, nickel (Ni) of 0.05 to 0.2% by weight and the balance of iron (Fe). The application also discloses a method of making the alloy.
    Type: Application
    Filed: February 27, 2014
    Publication date: October 2, 2014
    Applicants: Korea Hydro & Nuclear Power Co., Ltd, Korea Atomic Energy Research Institute
    Inventors: Tae Kyu Kim, Sanghoon Noh, Byoung-Kwon Choi, Chang-Hee Han, Ki-Baik Kim, Suk Hoon Kang, Young-Bum Chun, Jinsung Jang, Yong-Hwan Jeong
  • Patent number: 8733313
    Abstract: It is an object of the present invention to provide a valve seat product in which the amount of hard particles added to improve the wear resistance of a valve seat of an internal combustion engine is increased, and is excellent in the mechanical strength and machinability.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: May 27, 2014
    Assignee: Nippon Piston Ring Co., Ltd.
    Inventors: Kenichi Sato, Hiroshi Oshige, Takeshi Haniu
  • Publication number: 20130209307
    Abstract: The invention is a process for manufacturing a nano aluminum/alumina metal matrix composite and composition produced therefrom. The process is characterized by providing an aluminum powder having a natural oxide formation layer and an aluminum oxide content between about 0.1 and about 4.5 wt. % and a specific surface area of from about 0.3 and about 5 m2/g, hot working the aluminum powder, and forming a superfine grained matrix aluminum alloy. Simultaneously there is formed in situ a substantially uniform distribution of nano particles of alumina. The alloy has a substantially linear property/temperature profile, such that physical properties such as strength are substantially maintained even at temperatures of 250° C. and above.
    Type: Application
    Filed: December 4, 2012
    Publication date: August 15, 2013
    Applicant: Nanotec Metals, Inc.
    Inventor: Nanotec Metals, Inc.
  • Publication number: 20120103135
    Abstract: A powder metal composite is disclosed. The powder metal composite includes a substantially-continuous, cellular nanomatrix comprising a nanomatrix material. The compact also includes a plurality of dispersed particles comprising a particle core material that comprises Mg, Al, Zn or Mn, or a combination thereof, dispersed in the nanomatrix, the core material of the dispersed particles comprising a plurality a plurality of distributed carbon nanoparticles, and a bond layer extending throughout the nanomatrix between the dispersed particles. The nanomatrix powder metal composites are uniquely lightweight, high-strength materials that also provide uniquely selectable and controllable corrosion properties, including very rapid corrosion rates, useful for making a wide variety of degradable or disposable articles, including various downhole tools and components.
    Type: Application
    Filed: October 27, 2010
    Publication date: May 3, 2012
    Inventors: Zhiyue Xu, Soma Chakraborty, Gaurav Agrawal
  • Publication number: 20110020163
    Abstract: The present invention relates to a super-hard enhanced hard-metal comprising particulate hard material and a binder and at least one formation, the formation comprising a core cluster and a plurality of satellite clusters, spaced from, surrounding and smaller than the core cluster, and the core cluster and satellite clusters each comprising a plurality of contiguous super-hard particles.
    Type: Application
    Filed: April 15, 2009
    Publication date: January 27, 2011
    Inventor: Roger William Nigel Nilen
  • Publication number: 20110003177
    Abstract: A method for producing a sputtering target containing boron has steps of providing cobalt-chromium (Co·Cr) prealloy powder, mixing Co·Cr prealloy powder and raw material powder containing boron and oxide to form a mixture, preforming the mixture to form a green compact, and sintering the green compact to obtain the sputtering target containing boron. Because Co·Cr prealloy powder is provided, then is mixed with boron, oxide or the like, size and distribution of boride particles can be efficiently controlled. Therefore, Co, Cr, B or the like are uniformly distributed in the sputtering target.
    Type: Application
    Filed: July 6, 2009
    Publication date: January 6, 2011
    Inventors: Ming-Wei Wu, Hao-Chia Liao
  • Patent number: 7578866
    Abstract: This iron-based sintered alloy contains 0.05 to 3% by mass of calcium carbonate or 0.05 to 3% by mass of strontium carbonate. As a result, an iron-based sintered alloy having excellent machinability is obtained.
    Type: Grant
    Filed: March 10, 2004
    Date of Patent: August 25, 2009
    Assignee: Mitsubishi Materials PMG Corporation
    Inventors: Kinya Kawase, Yoshinari Ishii
  • Patent number: 7510591
    Abstract: A process for hydrogenating an organic compound which has at least one carbonyl group, in which the organic compound is brought into contact in the presence of hydrogen with a shaped article which can be produced in a process in which (i) an oxidic material comprising copper oxide, aluminum oxide and at least one of the oxides of lanthanum, tungsten, molybdenum, titanium or zirconium is prepared, (ii) powdered metallic copper, copper flakes, powdered cement, graphite or a mixture thereof is added to the oxidic material, and (iii) the mixture resulting from (ii) is shaped to a shaped article.
    Type: Grant
    Filed: March 20, 2004
    Date of Patent: March 31, 2009
    Assignee: BASF Aktiengesellschaft
    Inventors: Sylvia Huber-Dirr, Michael Hesse, Andrea Haunert, Henrik Junicke
  • Patent number: 7507687
    Abstract: Electrocatalyst powders and methods for producing electrocatalyst powders, such as carbon composite electrocatalyst powders. The powders have a well-controlled microstructure and morphology. The method includes forming the particles from an aerosol of precursors by heating the aerosol to a relatively low temperature, such as not greater than about 400° C.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: March 24, 2009
    Assignee: Cabot Corporation
    Inventors: Toivo T. Kodas, Mark J. Hampden-Smith, Plamen Atanassov, Klaus Kunze, Paul Napolitano, Rimple Bhatia, David Dericotte, Paolina Atanassova
  • Publication number: 20090025508
    Abstract: The invention discloses nano/micron binary structured powders for superhydrophobic, self-cleaning applications. The powders are featured by micron-scale diameter and nano-scale surface roughness. In one embodiment, the average diameter is about 1-25 ?m, and the average roughness Ra is about 3-100 nm. The nano/micron binary structured powders may be made of silica, metal oxide, or combinations thereof.
    Type: Application
    Filed: October 5, 2007
    Publication date: January 29, 2009
    Inventors: Shih-Chieh Liao, Hsiu-Fen Lin, Jin-Ming Chen
  • Publication number: 20080317620
    Abstract: A rare earth element magnet comprising molded magnetic powder containing at least one rare earth element, wherein a Fe rich phase covering a part or entire of the surface of particles of the magnetic powder and having a Fe atomic percentage larger than that of the magnetic powder, and an inorganic binder bonding the particles covered with the Fe rich phase.
    Type: Application
    Filed: May 6, 2008
    Publication date: December 25, 2008
    Inventors: Hiroyuki Suzuki, Takao Imagawa, Yuichi Satsu, Matahiro Komuro, Takashi Yasuhara, Yutaka Matsunobu
  • Patent number: 7442225
    Abstract: The present invention provides a worked molybdenum-alloy material that can be used at higher temperatures than at least temperatures at which known TZM alloys are used. A worked molybdenum-alloy material having high strength and high toughness includes at least one of carbide particles, oxide particles, and boride particles and fine nitride particles dispersed by internal nitriding of an untreated worked molybdenum-alloy material in which a nitride-forming-metal element is dissolved to form a solid solution in a molybdenum matrix and at least one of carbide particles, oxide particles, and boride particles is precipitated and dispersed.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: October 28, 2008
    Assignees: Japan Science and Technology Agency, National University Corporation Okayama University, A.L.M.T. Corp.
    Inventors: Jun Takada, Masahiro Nagae, Makoto Nakanishi, Tomohiro Takida, Tetsushi Hoshika
  • Patent number: 7326360
    Abstract: Magnetostrictive material based on cobalt ferrite is described. The cobalt ferrite is substituted with transition metals (such manganese (Mn), chromium (Cr), zinc (Zn) and copper (Cu) or mixtures thereof) by substituting the transition metals for iron or cobalt to form substituted cobalt ferrite that provides mechanical properties that make the substituted cobalt ferrite material effective for use as sensors and actuators. The substitution of transition metals lowers the Curie temperature of the material (as compared to cobalt ferrite) while maintaining a suitable magnetostriction for stress sensing applications.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: February 5, 2008
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: David C. Jiles, Jason A. Paulsen, John E. Snyder, Chester C. H. Lo, Andrew P. Ring, Keith A. Bormann
  • Patent number: 7147686
    Abstract: A rare earth magnet comprises rare earth magnet particles and a rare earth oxide being present between the rare earth magnet particles. The rare earth oxide is represented by a following general formula (I): R2O3??(I) where R is any one of terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: December 12, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tetsurou Tayu, Hideaki Ono, Munekatsu Shimada, Makoto Kano
  • Patent number: 7014881
    Abstract: An inert anode 50, for use in an electrolytic cell 12 for producing metals such as aluminum, is made by providing chemical source materials 100 such as at least two of metal salts, metal particles, or metal oxides and dissolving them to form a solution or a slurry 110, followed by adding a base 120 and adjusting the pH so that a gel 130 is formed which is dried and calcined 150, 160, 190 to provide a blend of metal oxide powder 200 which can be pressed and sintered 220 to form an inert anode 50.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: March 21, 2006
    Assignee: Alcoa Inc.
    Inventors: Xinghua Liu, Siba P. Ray, Alfred F. LaCamera, Douglas A. Weirauch, Mark L. Weaver, Robert A. DiMilia, Kirk J. Malmquist, Frankie E. Phelps, Joseph M. Dynys
  • Patent number: 6984271
    Abstract: A rare earth magnet to be used in a motor. The rare earth magnet comprises rare earth magnet particles. Additionally, a rare earth oxide is present among the rare earth magnet particles, the rare earth oxide being represented by the following general formula (I): R2xR?2(1?x)O3??(I) where each of R and R? is one element selected from the group consisting of yttrium (Y), lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb) and lutetium (Lu), and 0<x<1.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: January 10, 2006
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Tetsurou Tayu, Takae Ono, legal representative, Makoto Kano, Munekatsu Shimada, Yoshio Kawashita, Takeshi Yamauchi, Hideaki Ono, deceased
  • Patent number: 6821312
    Abstract: A method of making cermet inert anodes for the electrolytic production of metals such as aluminum is disclosed. The method includes the step of spray drying a slurry comprising ceramic phase particles and metal phase particles. The resultant spray dried powder, which comprises agglomerates of both the ceramic phase and metal phase particles, may then be consolidated by techniques such as pressing and sintering to produce a cermet inert anode material. The ceramic phase may comprise oxides of Ni, Fe and at least one additional metal selected from Zn, Co, Al, Li, Cu, Ti, V, Cr, Zr, Nb, Ta, W, Mo, Hf and rare earths. The metal phase may comprise Cu, Ag, Pd, Pt, Au, Rh, Ru, Ir and/or Os. The consolidated cermet inert anode material exhibits improved properties such as reduced porosity. The cermet inert anodes may be used in electrolytic reduction cells for the production of commercial purity aluminum as well as other metals.
    Type: Grant
    Filed: April 1, 2002
    Date of Patent: November 23, 2004
    Assignee: Alcoa Inc.
    Inventors: Siba P. Ray, Xinghua Liu, Frankie E. Phelps, Joseph M. Dynys, Douglas A. Weirauch, Jr.
  • Patent number: 6736909
    Abstract: A bulk exchange-spring magnet 12, a method of producing the same, and a device 20 incorporating the bulk exchange-spring magnet are disclosed. The magnet includes magnet powders 10 having hard and soft phases, and boron and oxygen atoms which cohere in boundary areas 16 between grains 14 of the densified magnet powders 10. In a production method, the magnet powders 10 are compacted so as to incorporate boron and oxygen atoms into the boundary areas 16 and are heated under a compacted state of the magnet powders at varying operating temperatures for a given time period. This results in formation of a highly densified magnet at a lower potential operating temperature for a shorter time period without the grain growth. The device 20 includes the bulk exchange-spring magnet 12 containing the boron and oxygen atoms cohering between the grains of the densified magnet powders.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: May 18, 2004
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Norihisa Waki, Hideaki Ono, Munekatsu Shimada, Tatsuo Sugiyama
  • Patent number: 6638334
    Abstract: The present invention is aimed at providing a sliding contact material that has an alloy composition containing no harmful substance like Cd, especially excellent contact resistance properties, electrical functions that are good and is not subject to secular change, and abrasion resistance practically bearing comparison with conventional sliding contact materials, and is aimed at lengthening the life of a motor by the use of a sliding contact material having excellent durability as a commutator for a small direct-current motor. The present invention is a sliding contact material of an Ag—Ni-based alloy that is used in sliding part electrically switching on and off by mechanical sliding action, and the material is a sliding contact material of Ni metal particle-dispersed-type Ag—Ni-based alloy that is produced in such a method that 0.7 to 3.0 wt. % Ni powder, an additive of Li2CO3 powder corresponding to 0.01 to 0.50 wt.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: October 28, 2003
    Assignees: Mabuchi Motor Co., Ltd., Tanaka Kikinzoku Kogyo K.K.
    Inventors: Keiji Nakamura, Takemasa Honma, Yasuhiro Hashimoto, Osamu Sakaguchi, Kengo Taneichi, Toshiya Yamamoto
  • Patent number: 6352649
    Abstract: The present invention provides magnetostrictive composites that include an oxide ferrite and metallic binders which provides mechanical properties that make the magnetostrictive compositions effective for use as sensors and actuators.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: March 5, 2002
    Assignee: Iowa State University Research Foundation Inc.
    Inventors: R. William McCallum, John E. Snyder, Kevin W. Dennis, Carl R. Schwichtenberg, David C. Jiles
  • Patent number: 6342108
    Abstract: A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° C and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: January 29, 2002
    Assignee: Materials Innovation, Inc.
    Inventors: David S. Lashmore, Glenn L. Beane, Lev Deresh, Zonglu Hua
  • Patent number: 6309620
    Abstract: A process for preparing carbonyl iron silicide comprises heat treatment of an iron/silicon mixture comprising a) from 20 to 99.9% by weight of finely divided carbonyl iron and b) from 0.1 to 80% by weight of finely divided silicon powder. Also provided are a carbonyl iron silicide obtainable by alloying carbonyl iron with silicon and a carbonyl iron suicide which has a higher inductance than carbonyl iron powder.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: October 30, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Reinhold Schlegel, Gabriele Friedrich
  • Patent number: 6150048
    Abstract: Disclosed are a metallic interconnection material for solid oxide fuel cells and a preparation method thereof. The metallic interconnection material has two fine microstructural phases in which 5-25% by volume of LaCrO.sub.3 is dispersed at the grain boundaries of Cr particles. It can be prepared by mixing 75-95% by volume of a Cr powder and 5-25% by volume of an LaCrO.sub.3 powder, together with a solvent and a binder, in a mill, molding the mixture into a predetermined shape after drying, and sintering the molded shape at approximately 1,500.degree. C. for 10 hours in an Ar atmosphere with 5 vol % of hydrogen to give an LaCrO.sub.3 -dispersed Cr alloy. The LaCrO.sub.3 -dispersed Cr alloy shows high electric conductivity by virtue of the growth inhibition of Cr particles during sintering and high chemical stability by virtue of the presence of the rare earth metal, La, meeting meet the requirements for the interconnection materials for solid oxide fuel cells.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: November 21, 2000
    Assignee: Korea Institute of Energy Research
    Inventors: Rak-Hyun Song, Dong-Ryul Shin, Kwangg-Sun Jeon, Yi-Sup Han, Dokiya Masayuki
  • Patent number: 6093337
    Abstract: The present invention provides magnetostrictive compositions that include an oxide ferrite which provides mechanical properties that make the magnetostrictive compositions effective for use as sensors and actuators.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: July 25, 2000
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: R. William McCallum, John E. Snyder, Kevin W. Dennis, Carl R. Schwichtenberg, David C. Jiles
  • Patent number: 6090191
    Abstract: The invention relates to the field of producing the means for protecting the alloys on the nickel base against the influence of corrosive media, and more particularly concerns the metal-ceramic coatings used for protecting the flow parts of the turbines of turbopump liquid-propellant rocket engines (LRE). The composition for producing the metal-ceramic coating consists of nickel and of oxides of barium, boron, aluminum, cerium and zirconium at the following percentage of components by mass: nickel--36-58, barium oxide--16-19, boron oxide--7-13, aluminum oxide--6-9, cerium oxide--14-19, zirconium oxide--1-2. The coating is produced of a slip, that is applied to the pieces by dipping, spraying or flooding. The slip layers are dried in the flow of hot air. The coating is fired in a furnace in the inert gas medium, argon for example, at a temperature of 1000-1100.degree. C. during 0.5-1 hour.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: July 18, 2000
    Assignee: Oktrytoe Aktsionernoe Obschestvo "Nauchno-Proizvodstvennoe Obiedinenie "Energomash" Imeni Akademika V.P. Glushko"
    Inventors: Aza Fedorovna Atlanova, Galina Andreevna Babaeva, Evgeny Alexeevich Belov, Dina Ivanovna Dubovik, Jury Alexandrovich Pestov, Margarita Evgenievna Judina, Leonid Vasilievich Cherkasov, Vadim Iliich Semenov, Felix Jurievich Chelkis, Alexandr Mikhailovich Kashkarov, Konstantin Pavlovich Khaplanov
  • Patent number: 6077327
    Abstract: There is disclosed a method of producing an aluminum composite material in which the content of silicon carbide can be made higher as compared with conventional methods, and the production cost is low, and the method can be carried out easily. An aluminum composite material of low-thermal expansion and high-thermal conductivity is produced by this method. A mixture of powder of aluminum metal or an alloy thereof and silicon carbide powder is pressurized and compacted to form a green compact. Subsequently, this green compact is charged into a mold, and is heated and compacted into a predetermined shape at a temperature not less than a melting point of the aluminum metal or the alloy thereof.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: June 20, 2000
    Assignee: Hitachi Metals, Ltd.
    Inventors: Shigeyuki Hamayoshi, Satoshi Fukui, Kenichiro Shimizu, Masahiko Ohshima
  • Patent number: 6074454
    Abstract: The invention relates to bullets having increased frangibility (or which can be easily fragmented) and to materials and processes for the manufacture of such bullets. The bullets of the present invention are typically made from copper or copper alloy powders (including brass, bronze and dispersion strengthened copper) which are pressed and then sintered under conditions so as to obtain bullets with the desired level of frangibility. In preferred embodiments of the invention, the bullets also contain several additives that increase or decrease their frangibility.
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: June 13, 2000
    Assignee: Delta Frangible Ammunition, LLC
    Inventors: John T. Abrams, Anil V. Nadkarni, Roy Kelly
  • Patent number: 6051045
    Abstract: This invention is directed to metal-matrix composites which include a substantially continuous phase of metal and reinforcing ceramic particulate substantially uniformly dispersed therein and comprising at least two of barium titanium, titanium dioxide, and titanium nitride. The composite may include other reinforcing ceramic particulate materials like metal carbides such as titanium carbide and other titanates like calcium titanate. The reinforcing particulate can comprise up to about 70 volume percent of the composite and have an average particle diameter of between about 0.1 micron and 100 microns. In forming the composite, the metal powder employed has an average particle diameter between about 1 and 20 microns. The composite is useful to manufacture, e.g., automotive parts such as brake rotors and structural components.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: April 18, 2000
    Assignee: Ford Global Technologies, Inc.
    Inventors: Chaitanya Kumar Narula, Sabine R. Nakouzi-Phillips, Gary Mark Crosbie
  • Patent number: 6004370
    Abstract: A sintered friction material especially suitable for use in a braking system has a matrix of a copper-system metal such as copper, tin, nickel and aluminum, and contains a specific additive, graphite and potassium titanate as friction conditioners. The specific additive consists of at least one material selected from a group consisting of zirconium oxide, silica, dolomite, orthoclase and magnesium oxide. The specific additive, the graphite and the potassium titanate are preferably blended in volume ratios of 1 to 15%, 10 to 50% and 5 to 30% respectively. The form of the potassium titanate is at least one of whiskery, platy and spherical forms and preferably plate-like or spherical. The sintered friction material has good abrasion resistance, low abrasion of the counterpart, a high friction coefficient, excellent material strength, good chattering resistance, and good squealing resistance.
    Type: Grant
    Filed: August 31, 1998
    Date of Patent: December 21, 1999
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Takatoshi Takemoto, Yukinori Yamashita
  • Patent number: 5997604
    Abstract: Corrosion resistant metal, either platinum or MCrAlY is bonded to a corrosion sensitive metal such as nickel based superalloys by coating the surface with the corrosion resistant metal particles held in a binder and covering this with a metalide generating tape. This is then heated to cause the formation of the metalide coating on the metal surface, which in turn, bonds the corrosion resistant metal to the surface.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: December 7, 1999
    Assignee: C. A. Patents, L.L.C.
    Inventors: Kevin Rafferty, Bruce Rowe
  • Patent number: 5972067
    Abstract: A disclosed gradient function material seal cap for discharge lamp bulb is produced by molding and thereafter firing a slurry which contains a plurality of groups of particles having different specific gravities. The plurality of groups of particles include at least a first group of particles and a second group of particles. The first group of particles comprises a group of non-metal particles having a specific gravity ranging from about 3 to 7 and a maximum particle diameter equal to or smaller than a deflocculation limit, said nonmetal particles being made of one or more materials selected from the group consisting of an oxide, a carbide, a nitride, and an oxynitride. The second group of particles comprises a group of metal particles having a specific gravity which is about 1.5 times the specific gravity of said first group of particles, and particle diameters distributed across the deflocculation limit.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: October 26, 1999
    Assignee: Toto Ltd.
    Inventors: Hirotaka Ishibashi, Koichi Hayashi, Hiroyuki Nagayama
  • Patent number: 5925404
    Abstract: The quantity of impurities in a magnetic material is decreased to produce a magnetic material with good quality, and a decrease in the cost of the magnetic material is realized by desulfurization. A magnetic raw material for metallic thin film magnetic recording media which contains sulfur more than 20 ppm is desulfurized to obtain the magnetic material for metallic thin film magnetic recording media with the sulfur content adjusted to 20 ppm or below, and a metallic thin film magnetic recording medium having a magnetic layer vaporized thereon with the magnetic material is fabricated.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: July 20, 1999
    Assignee: Sony Corporation
    Inventors: Kazunobu Chiba, Tustomu Takeda, Hiroyuki Yamada, Hideo Katagiri, Hiroshi Osumi
  • Patent number: 5866518
    Abstract: A self lubricating, friction and wear reducing composite material useful over a wide temperature range of from cryogenic temperature up to about 900.degree. C. contains 60-80 wt. % of particulate Cr.sub.2 O.sub.3, dispersed in a metal binder of a metal alloy containing Cr and at least 50 wt. % of Ni, Cr or a mixture of Ni and Cr. It also contains 5-20 wt. % of a fluoride of at least one Group I, Group II, or rare earth metal and, optionally, 5-20 wt. % of a low temperature lubricant metal. Such as Ag, Au, Pt, Pd, Rh and Cu. This composite exhibits less oxidation instability and less abrasiveness than composites containing chromium carbide, is readily applied using plasma spray and can be ground and polished with a silicon carbide abrasive.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: February 2, 1999
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Christopher Dellacorte, Brian J. Edmonds
  • Patent number: 5858525
    Abstract: A synthetic gasket material for use in a high-pressure press includes a major proportion of clay mineral powder having sufficient lubricity to flow in a high-pressure press, a minor proportion of at least one hard material powder having a sufficiently greater hardness than the clay mineral to retard flow of the clay mineral and form a seal during pressing in a high-pressure press, and a sufficient amount of binder to form an integral body. The synthetic gasket material is formed by thoroughly mixing together in desired proportions the clay mineral, hard material, and binder. The mixture is compacted into a body near net geometry and having a desired configuration to facilitate use in the high-pressure press. The compacted body is heated for a sufficient time and at a sufficient temperature to remove non-crystallographic water.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: January 12, 1999
    Assignee: General Electric Company
    Inventors: Lan Carter, Xian Yao, Ghanshyam Rai
  • Patent number: 5789686
    Abstract: Methods for making, methods for using and articles comprising cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. Preferably, the cermets further exhibit a portion that is binder rich and which gradually or smoothly transitions to at least a second region. The multiple-region cermets are particularly useful in compressively loaded application wherein a tensile stress or fatigue limit might otherwise be excessive for monolithic articles. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size, differential carbide chemistry, differential binder content, differential binder chemistry, or any combination of the preceding).
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 4, 1998
    Assignee: Kennametal Inc.
    Inventors: Ted R. Massa, John S. Van Kirk, Robert R. McNaughton, Jr.
  • Patent number: 5730931
    Abstract: A heat-resistant platinum material with more than 99.5% by weight platinum, with high long-term creep resistance and low grain growth at high temperature contains 0.1 to 0.35% by weight zirconium and/or zirconium oxide and 0.002 to 0.02% by weight boron and/or boron oxide.
    Type: Grant
    Filed: August 16, 1996
    Date of Patent: March 24, 1998
    Assignee: Degussa Aktiengesellschaft
    Inventors: Manfred Poniatowski, Ernst Drost, Stefan Zeuner
  • Patent number: 5723799
    Abstract: The present invention provides metal-based composite with oxide particle dispersion and a method for producing the same.The present invention relates to a method for producing metal-based composite with oxide particle dispersion, comprising sintering of metal-based ultrafine powders (with an average grain size of about 20 nm to 100 nm and a grain size distribution of about 5 nm to 300 nm and with the surface oxidized for handling) in vacuum, in an inert gas or in a reducing atmosphere by rapid sintering, crystallizing the ultrafine powders with a grain size of about 50 nm or less to metal oxide during sintering and simultaneously removing the oxygen on the surface of the ultrafine powders with the grain size of about 50 nm or more, and the metal-based composite with oxide particle dispersion produced according to the said method.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: March 3, 1998
    Assignee: Director General of Agency of Industrial Science and Technology
    Inventors: Norimitsu Murayama, Yasuyoshi Torii