Component Of Composite Having Metal Continuous Phase Interengaged With Nonmetal Continuous Phase Patents (Class 428/545)
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Patent number: 7288132Abstract: Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MxCy, is dispersed in a metal binder phase. In MxCy M is Cr, Fe, Ni, Co, Si, Ti, Zr, Hf, V, Nb, Ta, Mo or mixtures thereof, x and y are whole or fractional numerical values with x ranging from 1 to 30 and y from 1 to 6. These cermets are particularly useful in protecting surfaces from erosion and corrosion at high temperatures.Type: GrantFiled: March 7, 2006Date of Patent: October 30, 2007Assignee: Exxonmobil Research and Engineering CompanyInventors: ChangMin Chun, Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, Jayoung Koo, John Roger Peterson, Robert Lee Antram, Christopher John Fowler
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Patent number: 7282274Abstract: The present invention is an integral composite structural (ICS) material comprising an open metal structure having at least one external side and internal surfaces defining a plurality of open shapes with a ceramic matrix composite bonded to at least one external side and the surfaces of at least a substantial portion of the plurality of open shapes and occupying at least a substantial portion of the plurality of open shapes. The open metal structure, independent of the ceramic matrix composite, has a total metal volume percent in the range of about 10% to about 90%, with no dimension of any open shape being greater than about ¾ inch. The ceramic matrix layer covers a substantial portion of at least one external side of the open metal structure.Type: GrantFiled: November 7, 2003Date of Patent: October 16, 2007Assignee: General Electric CompanyInventors: Michael Lee Millard, Horace Richardson, Jr., Joseph Anthony Corrado
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Patent number: 7256353Abstract: There is provided a metal/ceramic bonding substrate capable of preventing the reverse thereof from greatly warping so as to be concave even if it is heated for soldering. In the metal/ceramic bonding substrate, a metal circuit plate 12 is bonded to one side of a ceramic substrate 10, and a heat sink plate (metal base plate) 14 is bonded to the other side thereof. On the heat sink plate 14, a work-hardened layer 16 is formed by shot peening. On the metal circuit plate 12 of the metal/ceramic bonding substrate, semiconductor chips (Si chips) 18 are soldered (solder layer 20). Then, a power module is produced by a predetermined process. On the reverse (the side of the work-hardened layer 16) of the power module, a radiating fin 26 is mounted via a thermal grease 24 by means of screws 22 or the like.Type: GrantFiled: December 29, 2003Date of Patent: August 14, 2007Assignee: Dowa Mining Co., Ltd.Inventors: Hideyo Osanai, Susumu Ibaraki, Ken Iyoda, Makoto Namioka
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Patent number: 7255931Abstract: When an aluminum plate is bonded directly to a ceramic substrate by cooling and solidifying molten aluminum which is injected into a mold so as to contact the ceramic substrate arranged in the mold, an additive, such as a TiB alloy, Ca or Sr, for decreasing the grain size of the aluminum plate to 10 mm or less while preventing the drop in thermal conductivity of the aluminum plate from the thermal conductivity of a pure aluminum plate from exceeding 20% of the thermal conductivity of the pure aluminum plate is added to the molten aluminum. When an aluminum alloy plate of an aluminum-silicon alloy is bonded directly to a ceramic substrate by cooling and solidifying a molten aluminum-silicon alloy which is injected into a mold so as to contact the ceramic substrate arranged in the mold, an aluminum-silicon alloy containing 0.1 to 1.5 wt % of silicon and 0.03 to 0.10 wt % of boron is injected into the mold.Type: GrantFiled: September 29, 2004Date of Patent: August 14, 2007Assignee: Dowa Mining Co., Ltd.Inventors: Hideyo Osanai, Satoru Ideguchi
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Patent number: 7229703Abstract: The main object of the present invention is to provide a gas barrier substrate having a high gas barrier property without a ruggedness, a pin hole or the like in the gas barrier layer. The present invention solves the problem by providing a gas barrier substrate having a base material, a planarization layer formed on the base material, and a gas barrier layer comprising a deposition film formed on the planarization layer.Type: GrantFiled: March 26, 2004Date of Patent: June 12, 2007Assignee: Dai Nippon Printing Co. Ltd.Inventors: Sayaka Kawashima, Minoru Komada, Keiji Tokunaga
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Patent number: 7179319Abstract: The invention proposes a fine grained sintered cemented carbide containing chromium and based on WC and a binder based on Co or CoNiFe, and having at least one additional phase comprising at least one carbide or mixed carbide of tantalum. For improving the high-temperature properties while simultaneously maintaining a good trade-off between hardness and bending strength, it is proposed that the sintered cemented carbide contains approximately 0.3 to 4% Ta, as related to the total mass of the sintered cemented carbide, that the WC has a grain size of between 0.1 and 1.3 ?m, that the binder phase contains the metals W, Cr and Ta, dissolved in solid solution, and that the at least one additional phase comprises a TaC phase visible by optical microscopy. The invention further relates to a powder-metallurgical process for manufacturing the sintered cemented carbide and to the use of the sintered cemented carbide for manufacturing cutting tools having improved high-temperature properties.Type: GrantFiled: January 16, 2004Date of Patent: February 20, 2007Assignee: Kennametal Inc.Inventors: Hans-Wilm Heinrich, Dieter Schmidt, Manfred Wolf
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Patent number: 7172817Abstract: An aqueous solution of a tin salt and an indium salt is added to an aqueous alkaline solution to form a hydroxide or a hydrate comprising tin and indium, the hydroxide or hydrate is heated at a temperature of 110 to 300° C. in the presence of water, filtered and dried, and then the hydroxide or hydrate is heated at a temperature of 200 to 1000° C. to form the tin-containing indium oxide particles. Thereby, tin-containing indium oxide particles which have a plate-form shape and an average particle size in the plane direction of 10 to 200 nm are obtained. The tin-containing indium oxide particles are suitable for forming an electrically conductive transparent coating film.Type: GrantFiled: November 14, 2002Date of Patent: February 6, 2007Assignee: Hitachi Maxell, Ltd.Inventors: Mikio Kishimoto, Nobuko Kasajima, Yuko Sawaki, Noriaki Otani
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Patent number: 7153338Abstract: One embodiment of the invention includes a cermet composition represented by the formula (PQ)(RS) comprising: a ceramic phase (PQ) and a binder phase (RS) wherein, P is a metal selected from the group consisting of Al, Si, Mg, Ca, Y, Fe, Mn, Group IV, Group V, Group VI elements, and mixtures thereof, Q is oxide, R is a base metal selected from the group consisting of Fe, Ni Co, Mn and mixtures thereof, S consists essentially of at least one element selected from Cr, Al and Si and at least one reactive wetting element selected from the group consisting of Ti, Zr, Hf, Ta, Sc, Y, La, and Ce.Type: GrantFiled: April 22, 2004Date of Patent: December 26, 2006Assignee: Exxonmobil Research and Engineering CompanyInventors: Narasimha-Rao Venkata Bangaru, ChangMin Chun, Hyun-Woo Jin, Jayoung Koo, John Roger Peterson, Robert Lee Antram, Christopher John Fowler
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Patent number: 7128979Abstract: A circuit board including conductive layers bonded to both surfaces of an insulating ceramic substrate, with a brazing material disposed therebetween. The conductive layers comprise at least 99.98% by mass of aluminum, and display an average crystal grain diameter within a range from 0.5 mm to 5 mm and a standard deviation ? for that crystal grain diameter of no more than 2 mm. Each conductive layer comprises at least 20 ppm of Cu, Fe and Si. The surface area of the crystal with the maximum crystal grain diameter within the conductive layers accounts for no more than 15% of the surface area of the insulating ceramic substrate.Type: GrantFiled: April 21, 2003Date of Patent: October 31, 2006Assignee: Mitsubishi Materials CorporationInventors: Toshiyuki Nagase, Yoshiyuki Nagatomo
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Patent number: 7094473Abstract: A wear-resistant iron-based sintered contact material is provided which is sintered by powder sintering so as to have high density, high seizure resistance and wear resistance. A wear-resistant iron-based sintered composite contact component composed of the wear-resistant iron-based sintered contact material sinter-bonded to a backing metal and its producing method are also provided. To this end, at least Cr7C3-type carbide and/or M6C-type carbide which have an average particle diameter of 5 ?m or more are precipitately dispersed in an amount of 20 to 50% by volume within an iron-based martensite parent phase which has a hardness of HRC 50 or more even when tempered at up to 600° C.Type: GrantFiled: December 29, 2003Date of Patent: August 22, 2006Assignee: Komatsu Ltd.Inventors: Takemori Takayama, Kazuo Okamura, Yoshikiyo Tanaka, Tetsuo Ohnishi
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Patent number: 7074253Abstract: Cermets are provided in which a substantially stoichiometric metal carbide ceramic phase along with a reprecipitated metal carbide phase, represented by the formula MxCy, is dispersed in a metal binder phase. In MxCy M is Cr, Fe, Ni, Co, Si, Ti, Zr, Hf, V, Nb, Ta, Mo or mixtures thereof, x and y are whole or fractional numerical values with x ranging from 1 to 30 and y from 1 to 6. These cermets are particularly useful in protecting surfaces from erosion and corrosion at high temperatures.Type: GrantFiled: April 22, 2004Date of Patent: July 11, 2006Assignee: ExxonMobil Research and Engineering CompanyInventors: ChangMin Chun, Narasimha-Rao Venkata Bangaru, Hyun-Woo Jin, Jayoung Koo, John Roger Peterson, Robert Lee Antram, Christopher John Fowler
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Patent number: 7070643Abstract: There is disclosed a compositionally graded sintered alloy which comprises: 1 to 40% by weight of a iron group metal; 0.1 to 10% by weight of at least one type of a specific metal element selected from the group consisting of Cr, Au, Ge, Cu; Sn, Al, Ga, Ag, In, Mn and Pb; a hard phase containing, as a main component, at least one compound selected from the group consisting of a carbide, a nitride and a mutual solid solution of a metal(s) which belongs to Group 4 (Ti, Zr, Hf), 5 (V, Nb, Ta) or 6 (Cr, Mo, W) of the Periodic Table; and inevitable impurities, wherein the content of the specific metal element gradually increases from a surface of the sintered alloy toward an inner portion thereof, and a ratio of the average concentration of the specific metal element in a region which is at least 1 mm inside from the surface of the sintered alloy, to the average concentration of the specific metal element in a region between the surface and the position which is 0.Type: GrantFiled: March 26, 2004Date of Patent: July 4, 2006Assignee: Toshiba Tungaloy Co., Ltd.Inventor: Masaki Kobayashi
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Patent number: 7019975Abstract: The present invention relates to a power module in which an insulated circuit board is fixed to one main surface of a heat discharge plate. It is an object thereof to provide a power module in which the heat discharge characteristics are improved without any marked warping being generated, and that has an extended heat cycle longevity. In the power module 10 of the present invention, a square insulated circuit board 12 is fixed to one main surface of a heat discharge plate 11. The heat discharge plate 11 is formed of an Al based alloy plate having a thickness A of 3 to 10 mm, and the insulated circuit board 12 having a side B of 30 mm or less in length is brazed directly onto the heat discharge plate 11. It is-preferable that the brazing material used is one or two or more brazing materials selected from Al—Si, Al—Ge, Al—Cu, Al—Mg, and Al—Mn based brazing materials.Type: GrantFiled: August 9, 2001Date of Patent: March 28, 2006Assignee: Mitsubishi Materials CorporationInventors: Yoshiyuki Nagatomo, Toshiyuki Nagase, Shoichi Shimamura
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Patent number: 6916355Abstract: A composite material 5 in which a dispersing material 7 is dispersed in a matrix 6 is provided. The composite material 5 is producible by steps of filling said mixed material in a space forming region to be defined by at least two container elements when said at least two container elements are integrated into one body, and then infiltrating said aluminum (Al) being molten due to heat generated by said self-combustion reaction into pores inside said mixed material through at least one hole formed in an upper part of a reaction container formed by combining said at least two container elements in which said mixed material is filled in said space forming region in a state being fixed to a predetermined shape, thereby an aluminide intermetallic compound is formed by self-combustion reaction between said metal powder and said aluminum (Al), and a dispersing material is dispersed into said matrix.Type: GrantFiled: November 19, 2002Date of Patent: July 12, 2005Assignee: NGK Insulators, Ltd.Inventors: Masahiro Kida, Takahiro Ishikawa, Masayuki Shinkai, Takatoshi Ikematsu
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Patent number: 6902600Abstract: A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of: at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}<100> orientation texture; and further having a Curie temperature less than that of pure Ni.Type: GrantFiled: October 28, 2002Date of Patent: June 7, 2005Assignee: UT-Battelle, LLCInventors: Amit Goval, Robert K. Williams, Donald M. Kroeger
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Patent number: 6890369Abstract: A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}<100> orientation texture; and further having a Curie temperature less than that of pure Ni.Type: GrantFiled: August 30, 2002Date of Patent: May 10, 2005Assignee: UT-Battelle, LLCInventors: Amit Goyal, Robert K. Williams, Donald M. Kroeger
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Patent number: 6846344Abstract: A biaxially textured alloy article having a magnetism less than pure Ni includes a rolled and annealed compacted and sintered powder-metallurgy preform article, the preform article having been formed from a powder mixture selected from the group of mixtures consisting of: at least 60 at % Ni powder and at least one of Cr powder, W powder, V powder, Mo powder, Cu powder, Al powder, Ce powder, YSZ powder, Y powder, Mg powder, and RE powder; the article having a fine and homogeneous grain structure; and having a dominant cube oriented {100}<100> orientation texture; and further having a Curie temperature less than that of pure Ni.Type: GrantFiled: August 30, 2002Date of Patent: January 25, 2005Assignee: UT-Battelle, LLCInventors: Amit Goyal, Robert K. Williams, Donald M. Kroeger
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Patent number: 6841235Abstract: A metallic nanowire having an aspect ratio of at least 100 and a diameter less than 200 nanometers composed of at least one of bismuth, indium, tin, lead, zinc, antimony and alloys of the same and a method of making the same from a thin film composite.Type: GrantFiled: October 11, 2002Date of Patent: January 11, 2005Assignee: General Motors CorporationInventors: Anita M. Weiner, Curtis A. Wong, Yang-Tse Cheng, Michael P. Balogh, Michael J. Lukitsch
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Publication number: 20040247923Abstract: The present invention provides a sprayable composition comprising a ceramic particulate including albite, illite, and quart, and a metallic composition, including nickel, chromium, iron, and silicon. The sprayable composition maybe a composite particle, a blend, or a cored wire. The present invention further provides an abradable coating formed on a metal substrate according to a method comprising the step of depositing the abradable coating on the metal substrate by thermal spraying of a sprayable composition comprising a ceramic particulate including albite, illite, and quartz, and a metallic composition, including nickel, chromium, iron and silicon. The sprayable composition may be a composite particle, a blend, or a cored wire. The abradable coating may be applied to a metal substrate such as steel, nickel-based alloys, and titanium.Type: ApplicationFiled: April 8, 2004Publication date: December 9, 2004Inventors: Karel Hajmrle, Anthony Peter Chilkowich
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Patent number: 6828037Abstract: The invention provides a hydrogen permeable structure, which can effectively prevent peeling-off of a hydrogen permeable film and hence has higher durability, and a method of manufacturing the structure. The hydrogen permeable structure has a hydrogen permeable film formed on the surface of or inside a porous support, having a thickness of not more than 2 &mgr;m, and containing palladium (Pd). The hydrogen permeable film is formed on the surface of or inside the porous support by supplying a Pd-containing solution and a reducing feed material from opposite sides of the porous support.Type: GrantFiled: June 16, 2003Date of Patent: December 7, 2004Assignee: Sumitomo Electric Industries, Ltd.Inventors: Takashi Uemura, Kentaro Yoshida, Nobuyuki Okuda, Takeshi Hikata
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Publication number: 20040151938Abstract: The present invention relates to a method and a heavy metal, such as noble metal. E.g. gold, for implantation in vivo or in vitro in local areas in humans or animals, the gold is provided with a large surface to ensure ample release of gold ions. The heavy metal e.g. gold may be admixed to solids, (tablets, powders) liquids (solutions, lung sprays, eye drops, nose spray) or cremes, depending on how it is going to be used, on the different external or internal epithelial surfaces. Form implantation in tissues including the brain, the gold is provided as pieces of gold having a mass and surface adapted to the purpose, where the surface of the piece of gold is larger than a cylindrical piece of gold having the same mass. In a preferred embodiment, the pieces of gold are wound as springs.Type: ApplicationFiled: February 13, 2004Publication date: August 5, 2004Inventor: Gorm Danscher
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Publication number: 20040142196Abstract: A thermal spray composition and method of deposition for abradable seals for use in gas turbine engines, turbochargers and steam turbines. The thermal spray composition comprises a mixture of metal-clad solid lubricant particles and unclad solid lubricants particles for producing an abradable seal used in the compressor section of gas engines, aircraft engines, radial compressors and the like. The metal is selected from alloys of Ni, Co, Cu, Fe and Al, preferably Ni alloys, and the solid lubricant is at least one of hexagonal boron nitride, graphite, calcium fluoride, lithium fluoride and molybdenum disulphide, preferably hexagonal boron nitride or hexagonal boron nitride and graphite.Type: ApplicationFiled: January 17, 2003Publication date: July 22, 2004Inventors: Karel Hajmrle, Petr Fiala
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Patent number: 6761750Abstract: A cutting tool insert has a cemented carbide substrate and a coating. The cemented carbide substrate includes 73-93 wt % WC, 4-12 wt % binder phase, and cubic carbide phase with a binder phase enriched surface zone essentially free of cubic carbide phase. The cubic carbide phase includes elements from the groups IVB and VB, with the Ta content on a level corresponding to a technical impurity. Inserts according to the invention exhibit favorable edge strength and thermal shock resistance.Type: GrantFiled: November 26, 2002Date of Patent: July 13, 2004Assignee: SECO Tools ABInventors: Jenni Zackrisson, Jan Qvick
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Publication number: 20040132275Abstract: A process of synthesizing metal and metal nitride nanowires, the steps comprising of: forming a catalytic metal (such as gallium, and indium) on a substrate (such as fused silica quartz, pyrolytic boron nitride, alumina, and sapphire), heating the combination in a pressure chamber, adding gaseous reactant and/or solid metal source, applying sufficient microwave energy (or current in hot filament reactor) to activate the metal of interest (such as gold, copper, tungsten, and bismuth) and continuing the process until nanowires of the desired length are formed. The substrate may be fused silica quartz, the catalytic metal a gallium or indium metal, the gaseous reactant is nitrogen and/or hydrogen and the nanowires are tungsten nitride and/or tungsten.Type: ApplicationFiled: November 10, 2003Publication date: July 8, 2004Inventors: Mahendra Kumar Sunkara, Hari Chandrasekaran, Hongwei Li
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Publication number: 20040091731Abstract: A transparent conductive layered structure which has the functions of preventing electrostatic charging or shielding an electric field, and preventing reflection, the two-layered film of which has an excellent scratch strength, and with which a reduction in production cost is expected and a method of producing the same, and a transparent coat layer forming coating liquid used in the method of producing the same, and a display device to which the transparent conductive layered structure is applied, are provided.Type: ApplicationFiled: October 29, 2003Publication date: May 13, 2004Applicant: Sumitomo Metal Mining Co., Ltd.Inventors: Atsushi Tofuku, Masaya Yukinobu
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Patent number: 6730407Abstract: A soluble lubricating surface-treated stainless steel sheet with excellent shapability for fuel tanks, comprising a substrate having on both surfaces or one surface thereof a soluble lubricating resin film. Preferably, the soluble lubricating resin film mainly comprises (A) an alkali-soluble polyurethane resin composition containing a carboxyl group or a sulfonic acid group within the molecule and having a glass transition point of 100° C. or more as a dry film and (B) a lubricating function-imparting agent in an amount of from 1 to 30% by mass based on the polyurethane composition.Type: GrantFiled: August 8, 2001Date of Patent: May 4, 2004Assignees: Nippon Steel Corporation, Mitsui Takeda Chemicals, Inc.Inventors: Yoichiro Mori, Akihiro Miyasaka, Hiroshi Kanai, Ikuro Yamaoka, Tsutomu Tawa, Chikako Kouda, Mitsuhiro Nishimura
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Publication number: 20040081847Abstract: A composite material with a porous inorganic-nonmetallic matrix and a second material, characterized in thatType: ApplicationFiled: October 29, 2003Publication date: April 29, 2004Inventors: Stefan Aechtner, Helga Hornberger, Emil Nagel, Norbert Thiel
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Publication number: 20040062943Abstract: The present invention allows both the merits of a metallic housing and those of a synthetic resin structure to be exhibited in electronic devices, domestic electric devices, etc., and achieves high productivity and mass production capability as well as enables a desired configuration and structure to be designed freely. The present invention is useful for achieving a reduction in weight and for attaining increased strength in not only electronic devices and domestic electric devices but also various parts and structures.Type: ApplicationFiled: July 16, 2003Publication date: April 1, 2004Inventors: Masanori Naritomi, Naoki Ando, Masao Takahashi, Masao Shiraishi
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Patent number: 6712997Abstract: The present invention relates to composite polymers containing nanometer-sized metal particles and manufacturing method thereof, which can be uniformly dispersed nanometer-sized metal particles into polymers, thereby allowing the use thereof as optically, electrically and magnetically functional materials. The method for manufacturing composite polymers containing nanometer-sized metal particles includes the steps of: dispersing at least one metal precursor into a matrix made of polymers in a molecule level; and irradiating rays of light on the matrix containing the metal precursors dispersed in the molecule level and reducing the metal precursors into metals and fixing nanometer sized metal particles inside of matrix.Type: GrantFiled: April 24, 2001Date of Patent: March 30, 2004Assignee: Korea Institute of Science and TechnologyInventors: Jong Ok Won, Yong Soo Kang, Bum Suk Jung, Yeo Sang Yoon
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Publication number: 20040018371Abstract: The present invention is directed towards metallized carbon nanotubes, methods for making metallized carbon nanotubes using an electroless plating technique, methods for dispensing metallized carbon nanotubes onto a substrate. The present invention is also directed towards cold cathode field emitting materials comprising metallized carbon nanotubes, and methods of using metallized carbon nanotubes as cold cathode field emitters.Type: ApplicationFiled: February 21, 2003Publication date: January 29, 2004Applicant: SI Diamond Technology, Inc.Inventor: Dongsheng Mao
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Patent number: 6682580Abstract: A matrix powder for the production of components for wear-resistant applications by forming the matrix powder, along with an infiltrant, into a matrix, and and a wear-resistant component produced therefrom are presented. In order to improve mechanical properties, in particular resistance to erosion, it is proposed for at least some of the hard material to be in the form of spheroidal hard-material particles with a particle size of less than 500 &mgr;m.Type: GrantFiled: April 16, 2002Date of Patent: January 27, 2004Assignee: WOKA Schweisstechnik GmbHInventors: Eberhard G. Findeisen, Vivek Ranjan Banerjee, Richard F. Moll, Siegmund Kremmer
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Patent number: 6660375Abstract: A thin-film magnet formed from a gas-phase reaction of tetracyanoetheylene (TCNE) OR (TCNQ), 7,7,8,8-tetracyano-P-quinodimethane, and a vanadium-containing compound such as vanadium hexcarbonyl (V(CO)6) and bis(benzene)vanalium (V(C6H6)2) and a process of forming a magnetic thin film upon at least one substrate by chemical vapor deposition (CVD) at a process temperature not exceeding approximately 90° C. and in the absence of a solvent. The magnetic thin film is particularly suitable for being disposed upon rigid or flexible substrates at temperatures in the range of 40° C. and 70° C. The present invention exhibits air-stable characteristics and qualities and is particularly suitable for providing being disposed upon a wide variety of substrates.Type: GrantFiled: November 27, 2002Date of Patent: December 9, 2003Assignee: University of Utah Research FoundationInventors: Joel S. Miller, Kostyantyn I. Pokhodnya
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Patent number: 6635348Abstract: Provided is an aerosol method, and accompanying apparatus, for preparing powdered products of a variety of materials involving the use of an ultrasonic aerosol generator (106) including a plurality of ultrasonic transducers (120) underlying and ultrasonically energizing a reservoir of liquid feed (102) which forms droplets of the aerosol. Carrier gas (104) is delivered to different portions of the reservoir by a plurality of gas delivery ports (136) delivering gas from a gas delivery system. The aerosol is pyrolyzed to form particles, which are then cooled and collected. The invention also provides powders made by the method and devices made using the powders.Type: GrantFiled: September 22, 2000Date of Patent: October 21, 2003Assignee: Superior MicroPowders LLCInventors: Mark J. Hampden-Smith, Toivo T. Kodas, Quint H. Powell, Daniel J. Skamser, James Caruso, Clive D. Chandler
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Patent number: 6630247Abstract: A ceramic-metal composite that is tough and stiff has been prepared and is comprised of an inert ceramic (e.g., alumina) embedded and dispersed in a matrix comprised of a metal (e.g., aluminum), a reactive ceramic (e.g., boron carbide) and a reactive ceramic-metal reaction product (e.g., AlB2, Al4BC, Al3B48C2, AlB12, Al4C3, AlB24C4 or mixtures thereof) wherein grains of the inert ceramic have an average grain size greater than or equal to the average grain size of grains of the reactive ceramic. The ceramic-metal composite may be prepared by forming a mixture comprised of an inert ceramic powder (e.g., alumina) and a reactive ceramic powder (e.g., boron carbide), the inert ceramic powder having an average particle size equal to or greater than the average particle size of the reactive ceramic powder, forming the mixture into a porous body and consolidating the porous body in the presence of a metal (e.g., aluminum) to form the ceramic-metal composite.Type: GrantFiled: August 3, 2001Date of Patent: October 7, 2003Assignee: Dow Global Technologies Inc.Inventors: Richard T. Fox, Chan Han, Aleksander J. Pyzik
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Patent number: 6607587Abstract: The present invention provides a non-chromium anticorrosive coatings suitable for metal materials comprising 0.2 to 50 g of a thiocarbonyl group-containing compound and 50 to 500 g of a water-dispersible silica without a substantial amount of a phosphate ion in one liter of a composition containing aqueous resins and water as main components, and an anticorrosive treatment using the anticorrosive coatings described above.Type: GrantFiled: November 6, 2000Date of Patent: August 19, 2003Assignees: Nippon Steel Corporation, Nippon Paint Co., Ltd.Inventors: Hiroshi Kanai, Toshiaki Shimakura
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Publication number: 20030129437Abstract: The invention is to offer a composite material with least uneven distribution of a mechanical strength resulted from dispersing conditions of an inorganic filler and having a by far high mechanical strength in comparison with conventional composite materials, as well as to offer a method of making the same. Inorganic hollow particles and at least one of inorganic fiber sheets are accommodated in a stacked manner within a casting mold, and a molten metal is poured into a casting mold while pressurizing it, followed by cooling, whereby it is possible to produce such a composite material where a first composite layer and a second composite layer continuously exist in a metal matrix, so as to compose a composite material being a single body as a whole, the first composite layer containing at least one of inorganic fiber sheets and the second composite layer containing inorganic hollow particles.Type: ApplicationFiled: December 20, 2002Publication date: July 10, 2003Applicant: YAZAKI CORPORATIONInventors: Kenichi Kawaguchi, Makoto Katsumata, Tatsuya Kato
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Publication number: 20030087100Abstract: The present invention relates to a coated metal surface comprising, successively:Type: ApplicationFiled: July 18, 2002Publication date: May 8, 2003Inventor: Nicolas Amouroux
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Patent number: 6551719Abstract: Disclosed is a reaction vessel used for oxidizing and decomposing equipment suitable for processing with supercritical water, and methods of manufacturing the reaction vessel. The reaction vessel comprises an oxide film containing a platinum group metal oxide for example having a fine crystalline structure, and a high corrosion resistance in both oxidizing and reducing atmosphere. The film is formed on a surface of the vessel by performing a pyrolysis reaction in an atmosphere containing water vapor. The oxide film is comprised of at least one platinum group metal oxide selected from Ir, Ru or Rh oxide, and at least one oxide of a metal selected from Ti and Ta.Type: GrantFiled: December 20, 2000Date of Patent: April 22, 2003Assignee: Furuyametal Co., Ltd.Inventors: Takahito Furuya, Takayuki Shimamune
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Patent number: 6541124Abstract: A drill resistant plate, which presents a rough surface of hardened particles to drilling attack, and which tends to snap or destroy drill bits before they can began drilling. The plate is made by brazing hard particles into a matrix of brazing material attached to a steel plate. Nickel-Silver brazing material is used to form the matrix on the steel plate, and tungsten carbide particles of 8-10 mesh are secured within the matrix, with the hard particles of tungsten carbide partially exposed, presenting a roughened surface with angular pieces of tungsten carbide to the drilling attack.Type: GrantFiled: November 13, 2001Date of Patent: April 1, 2003Assignee: Rhino Metals, Inc.Inventor: Donald K. Suggs
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Publication number: 20030059332Abstract: A method of producing a ceramic matrix composite is provided, which production method reduces metal residual percentage within matrix with little energy consumption, without requiring special external heating means and special equipment while it is industrially simple and at a low price. It is a method of producing a ceramic matrix composite having the steps of filling mixed powder obtained by mixing metal powder and boron nitride powder into a predetermined container to form a green compact having a porous structure, and infiltrating the above described green compact with molten Al to form a composite material containing metal boride and having aluminum nitride as a matrix. The green compact is formed by compressing the mixed powder whose mixing ratio of metal powder to boron nitride powder is 1 : 1.8 to 1 : 2.2 (molar ratio) so that porosity of the green compact is 34 to 42%.Type: ApplicationFiled: August 15, 2002Publication date: March 27, 2003Applicant: NGK Insulators, Ltd.Inventors: Makoto Kobashi, Naoyuki Kanetake, Takahiro Ishikawa, Masahiro Kida
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Patent number: 6533962Abstract: The anticorrosive plastic packaging materials for protecting iron, aluminum and alloys of these metals against corrosion comprise synergistic mixture of contact-vapour phase corrosion inhibitors containing salt or salts selected from the salts of ammonium and alkali metals or alkaline-earth metals derived from benzoic acid and for nitrous acid and 1,3-benzodiazole and for its 1-methyl derivative and 1H-benzotriazole and/or its methyl derivative and amorphous silicium oxide. As the anticorrosive plastic packaging article are predominantly used films or packaging products made of film, containers, either of mono- or multi-layer construction, wherein in case of multilayer packaging articles the synergistic mixture of contact-vapour phase inhibitors is with advantage added to the layer or layers closer to the article to be protected.Type: GrantFiled: June 15, 2001Date of Patent: March 18, 2003Assignees: Vojensky Technicky Ustav Ochrany, Polymer Institute Brno, Spol.S. R.O.Inventors: Jaromír Tulka, Eva Jan{haeck over (c)}ová, Ji{haeck over (r)}í Sedlá{haeck over (r)}, Ji{haeck over (r)}í Pác
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Publication number: 20030044596Abstract: The invention relates to an article, in particular an implant, comprising a substrate which is coated at least partly with at least one layer, and on which there is at least partly a protein-, peptide- and/or saccharide-containing substance, where the layer directly adjacent to the substance comprises at least one metal selected from titanium, zirconium and hafnium, or a compound thereof with one or more non-metals and/or semiconductors, or an alloy thereof with one or more other metals, and has been applied by means of a vacuum coating process. Also provided is a process for producing the article, in which the layer is applied to the substrate under vacuum, and the use of the article.Type: ApplicationFiled: March 7, 2000Publication date: March 6, 2003Inventors: Miladin P. Lazarov, Isabella Mayer
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Publication number: 20030024430Abstract: A method for applying a bond coat on a metal-based substrate is described. A slurry which contains braze material and a volatile component is deposited on the substrate. The slurry can also include bond coat material. Alternatively, the bond coat material can be applied afterward, in solid form or in the form of a second slurry. The slurry and bond coat are then dried and fused to the substrate. A repair technique using this slurry is also described, along with related compositions and articles.Type: ApplicationFiled: September 30, 2002Publication date: February 6, 2003Inventors: Wayne Charles Hasz, D. Sangeeta
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Publication number: 20020127424Abstract: A metallic plate material used as a material for, for example, a casing for containing parts of an electric/electronic instrument, which is good in earthing properties, shield properties against electromagnetic waves, formabilities, lubricity, sliding properties, and resistance to solvents. The metallic plate material comprises a resin-coated metallic plate material. The resin coating contains, as resin, at least one substance chosen from a group consisting of acrylic-based resin, epoxy-based resin, and urethane-based resin, and contains water in the amount of 1 to 50 mass % and a lubricant in the amount of 0.1 to 20 mass %, and has a thickness of 0.05 to 5 &mgr;m.Type: ApplicationFiled: December 20, 2001Publication date: September 12, 2002Inventor: Osamu Kato
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Patent number: 6447894Abstract: A silicon carbide composite which is a flat composite comprising a porous preform of silicon carbide and a metal containing aluminum as the main component, infiltrated into the porous preform, said composite having a warpage of at most 250 &mgr;m per 10 cm of the principal plane length of the composite.Type: GrantFiled: November 12, 1999Date of Patent: September 10, 2002Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Hideki Hirotsuru, Kenji Nomura, Ryuichi Terasaki, Mitsuaki Saito, Kazuyuki Hiruta, Akira Miyai
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Patent number: 6447927Abstract: A composite metal matrix formed of polycrystalline &agr;-Al2O3 fibers encapsulated within a matrix of substantially pure elemental aluminum, or an alloy elemental aluminum and up to about 2% copper is disclosed. The resulting materials are characterized by their high strength and low weight are particularly well suited for applications in various industries including high voltage power transmission.Type: GrantFiled: March 20, 2000Date of Patent: September 10, 2002Assignee: 3M Innovative Properties CompanyInventors: Colin McCullough, Andreas Mortensen, Paul S. Werner, Herve E. Deve, Tracy L. Anderson
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Patent number: 6437046Abstract: This invention relates to a low-density polyethylene composition useful for coating polar substrates. This invention particularly relates to a low-density polyethylene composition useful for coating metal foils, wherein the composition comprises an ethylene/(meth)acrylic acid copolymer having a low acid content.Type: GrantFiled: October 4, 2000Date of Patent: August 20, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Barry Alan Morris
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Publication number: 20020096428Abstract: The invention includes the use of a high-modulus fiber metal matrix composite material as a backing plate for physical vapor deposition targets, as a lid for microelectronics packages, as a heat spreader, and as a heat sink. In one implementation, copper-coated carbon fibers are mixed with copper powder. In another implementation, the mixture is consolidated to a carbon fiber metal matrix composite by using a vacuum hot press. The resultant backing plate has a coefficient of thermal expansion of 4.9×10−6/C, thermal conductivity of at least 300 W/mK, density of greater than 99% of theoretical, and the composite material of the backing plate is 30% lighter than Cu while also having higher stiffness than Cu. The high-modulus fiber metal matrix composite backing plate can be used for high power W, Ta, and ceramic PVD targets.Type: ApplicationFiled: January 19, 2001Publication date: July 25, 2002Inventors: Tim Scott, Tamara White, Jianxing Li
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Publication number: 20020079604Abstract: Ceramic oxide pre-forms comprising substantially continuous, alpha alumina fibers, and methods for making the same. The ceramic oxide pre-forms are useful, for example, as in making metal matrix composites reinforced with substantially continuous, alpha alumina fibers.Type: ApplicationFiled: September 27, 2001Publication date: June 27, 2002Inventors: Sarah J. Davis, Scott R. Holloway, William J. Satzer, John D. Skildum, Larry R. Visser, Ernest R. Waite
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Patent number: RE39998Abstract: Composite wear component produced by casting and consisting of a metal matrix whose working face or faces includes inserts which have a very high wear resistance, characterized in that the inserts consist of a ceramic pad, this ceramic pad consisting of a homogeneous solid solution of 20 to 80% of Al2O3 and 80 to 20% of ZrO2, the percentages being expressed by weights of the constituents, and the pad then being impregnated with a liquid metal during the casting.Type: GrantFiled: August 27, 1997Date of Patent: January 8, 2008Assignee: Magotteaux International S.A.Inventor: Hubert Francois