Oxide-containing Component Patents (Class 428/632)
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Patent number: 7250224Abstract: A coating system and coating method for damping vibration in an airfoil of a rotating component of a turbomachine. The coating system includes a metallic coating on a surface of the airfoil, and a ceramic coating overlying the metallic coating. The metallic coating contains metallic particles dispersed in a matrix having a metallic and/or intermetallic composition. The metallic particles are more ductile than the matrix, and have a composition containing silver and optionally tin. The method involves ion plasma cleaning the surface of the airfoil before depositing the metallic coating and then the ceramic coating.Type: GrantFiled: October 12, 2004Date of Patent: July 31, 2007Assignee: General Electric CompanyInventors: Ramgopal Darolia, Matthew Mark Weaver, Dennis Martin Corbly, Boris Alexeevich Movchan, Anatolii Ivanovich Ustinov
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Patent number: 7241510Abstract: In one embodiment, a peelable circuit board foil (200) has a metal support layer (205) and a conductive metal foil layer (210) bonded by an inorganic high temperature release structure (215) that comprises a co-deposited layer (250) and a metal oxide layer (260). The co-deposited layer comprises an admixture of nickel and one or more of boron, phosphorus, and chromium. In a second embodiment, the peelable printed circuit foil (200) has a crystallized dielectric oxide layer (405) disposed on the metal foil layer and an electrode layer (415) disposed on the crystallized dielectric oxide layer, forming a dielectric peelable circuit board foil (400) that may be adhered to a layer of a flexible or rigid circuit board, after which the metal support layer can be peeled away, leaving a capacitive structure including the metal foil layer, the crystallized dielectric oxide layer, and the electrode layer.Type: GrantFiled: May 27, 2005Date of Patent: July 10, 2007Assignee: Motorola, Inc.Inventors: Gregory J. Dunn, Remy J. Chelini, Timothy B. Dean
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Patent number: 7238434Abstract: This invention relates to a welded line pipe structure for transporting corrosive petroleum or natural gas. It is constituted by martensitic stainless steel pipes containing 8–16% Cr and at most 0.05% C. By suitably controlling the welding conditions at the time of girth welding of the steel pipes so as to ensure that the Cr concentration in grain boundary Cr-depleted portions existing immediately beneath a weld oxide scale is at least 5%, the occurrence of SCC in a high temperature CO2 environment can be prevented.Type: GrantFiled: March 3, 2006Date of Patent: July 3, 2007Assignee: Sumitomo Metal Industries, Ltd.Inventors: Hisashi Amaya, Kazuhiro Ogawa, Kunio Kondo, Masayuki Sagara, Hiroyuki Hirata
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Patent number: 7232615Abstract: A coating composition that contains at least one degradable coating layer and at least one layer of barrier coating is disclosed. The coating composition can be used to make a coated substrate having improved performance over conventional coated substrates after exposure to heat and certain chemicals like halides such as chlorides, sulfur, salt, chlorine, alkali, and enamels.Type: GrantFiled: April 1, 2004Date of Patent: June 19, 2007Assignee: PPG Industries Ohio, Inc.Inventors: Harry Buhay, James J. Finley, James P. Thiel
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Patent number: 7226668Abstract: A thermal barrier coating for an underlying metal substrate of articles that operate at, or are exposed to, high temperatures, as well as being exposed to environmental contaminant compositions. This coating comprises an inner layer nearest to the underlying metal substrate comprising a ceramic thermal barrier coating material, as well as an outer layer having an exposed surface and comprising a CMAS-reactive material in an amount up to 100% and sufficient to protect the thermal barrier coating at least partially against CMAS that becomes deposited on the exposed surface, the CMAS-reactive material comprising an alkaline earth aluminate or alkaline earth aluminosilicate where the alkaline earth is selected from barium, strontium and mixtures thereof, and optionally a ceramic thermal barrier coating material. This coating can be used to provide a thermally protected article having a metal substrate and optionally a bond coat layer adjacent to and overlaying the metal substrate.Type: GrantFiled: December 12, 2002Date of Patent: June 5, 2007Assignee: General Electric CompanyInventors: Bangalore Aswatha Nagaraj, Irene Spitsberg
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Patent number: 7223940Abstract: An electrically heatable transparency has at least one substrate, a first bus bar spaced from a second bus bar, and a conductive coating formed over at least a portion of the substrate. The first and second bus bars are in electrical contact with the coating. At least one of the bus bars has an end region in electrical contact with the coating. The end region is tapered such that the coating is of substantially uniform thickness on the end region.Type: GrantFiled: February 22, 2005Date of Patent: May 29, 2007Assignee: PPG Industries Ohio, Inc.Inventors: Charles S. Voeltzel, Bruce A. Bartrug, James J. Finley, Allen R. Hawk, Lewis R. Palka, Frank J. Pazul, John A. Winter
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Patent number: 7205020Abstract: A magnetic recording medium has a non-magnetic under-layer, a magnetic layer, a protective film and a liquid lubricant layer sequentially laminated on a non-magnetic substrate. The magnetic layer has a multi-layer structure laminated with two or more magnetic layer components, each of the magnetic layer components having ferromagnetic grains and non-magnetic grain boundaries surrounding the grain. The resulting magnetic recording medium has a granular magnetic layer exhibiting very high Hc accompanying high density of magnetic recording, while decreasing the amount of platinum needed for attaining the high Hc, and reducing media noise accompanying the high recording density.Type: GrantFiled: January 14, 2004Date of Patent: April 17, 2007Assignee: Fuji Electric Co., Ltd.Inventors: Tadaaki Oikawa, Hiroyuki Uwazumi, Takahiro Shimizu, Naoki Takizawa
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Patent number: 7198858Abstract: A metal is used as a predominant component of an outermost metallic portion of a ceramic-containing and metal-containing vibration damping coating for a metallic article, for the purpose of enhancing resistance of the coating to foreign object damage and/or erosion while substantially maintaining or enhancing vibration damping performance of the coating. The outermost metallic portion is preferably substantially free of non-metallic intrusions and cavities.Type: GrantFiled: October 21, 2003Date of Patent: April 3, 2007Assignee: Rolls-Royce PLCInventors: Mark H Shipton, Sophoclis Patsias
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Patent number: 7198860Abstract: Ceramic tile (32) insulation for protecting a substrate material (34) in a high temperature environment. A plurality of ceramic tiles (78) may be used in combination with a monolithic layer of ceramic insulation (80) to protect a fillet region (76) and an airfoil section (80), respectively, of a gas turbine vane (72). Individual ceramic tiles (84) may be applied to repair a damaged area of the monolithic insulating layer. Ceramic tile insulation may be applied in two layers (56, 58) with the material properties of the two layers being different, and with the gaps (38) of the two layers being misaligned.Type: GrantFiled: April 25, 2003Date of Patent: April 3, 2007Assignee: Siemens Power Generation, Inc.Inventor: Steven James Vance
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Patent number: 7186467Abstract: A black galvanized steel sheet including a composite coating layer formed on a surface of a blackened galvanized steel sheet by applying a treatment solution containing a phosphate ion, a vanadate ion, a metal ion, an ?,?-unsaturated carboxylic acid and a glycoluril resin; and an organic resin layer formed on the composite coating layer, is provided. The black galvanized steel sheet is excellent in heat absorption and heat dissipation, electrical conductance, and corrosion resistance in a worked portion. Furthermore, the black galvanized steel sheet does not include hexavalent chromium.Type: GrantFiled: January 30, 2004Date of Patent: March 6, 2007Assignee: JFE Steel CorporationInventors: Hiroki Nakamaru, Yuuzo Ootuka, Takeshi Sakuma, Hiroyuki Ogata, Shigeru Umino, Chiyoko Tada
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Patent number: 7186466Abstract: A thermal barrier coating composition is provided. The composition has a base oxide, a primary stabilizer, and at least two additional cationic oxide dopants. Preferably, a pair of group A and group B defect cluster-promoting oxides is used in conjunction with the base and primary stabilizer oxides. The new thermal barrier coating is found to have significantly lower thermal conductivity and better sintering resistance. In preferred embodiments, the base oxide is selected from zirconia and hafnia. The group A and group B cluster-promoting oxide dopants preferably are selected such that the group A dopant has a smaller cationic radius than the primary stabilizer oxide, and so that the primary stabilizer oxide has a small cationic radius than that of the group B dopant.Type: GrantFiled: November 17, 2005Date of Patent: March 6, 2007Assignees: Ohio Aerospace Institute, The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Dongming Zhu, Robert A. Miller
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Patent number: 7175920Abstract: The present invention is to provide an ultra-thin copper foil with a carrier which comprises a release layer, a diffusion preventive layer and a copper electroplating layer laminated in this order, or a diffusion preventive layer, a release layer and a copper electroplating layer laminated in this order on the surface of a carrier foil, wherein a surface of the copper electroplating layer is roughened; a copper-clad laminated board comprising the ultra-thin copper foil with a carrier being laminated on a resin substrate; a printed wiring board comprising the copper-clad laminated board on the ultra-thin copper foil of which is formed a wiring pattern; and a multi-layered printed wiring board which comprising a plural number of the above printed wiring board being laminated.Type: GrantFiled: July 13, 2005Date of Patent: February 13, 2007Assignee: Circuit Foil Japan Co., Ltd.Inventors: Akitoshi Suzuki, Shin Fukuda, Kazuhiro Hoshino, Tadao Nakaoka
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Patent number: 7172820Abstract: A strengthened bond coat for improving the adherence of a thermal barrier coating to an underlying metal substrate to resist spallation without degrading oxidation resistance of the bond coat. The bond coat comprises a bond coating material selected from the group consisting of overlay alloy coating materials, aluminide diffusion coating materials and combinations thereof. Particles comprising a substantially insoluble bond coat strengthening compound and having a relatively fine particle size of about 2 microns or less are dispersed within at least the upper portion of the bond coat in an amount sufficient to impart strengthening to the bond coat, and thus limit ratcheting or rumpling thereof.Type: GrantFiled: October 13, 2005Date of Patent: February 6, 2007Assignee: General Electric CompanyInventors: Ramgopal Darolia, Joseph David Rigney, Gillion Herman Marijnissen, Eric Richard Irma Carolus Vergeldt, Annejan Bernard Kloosterman
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Patent number: 7166372Abstract: The present invention relates to an overlay coating which has improved strength properties. The overlay coating comprises a deposited layer of MCrAlY material containing discrete nitride particles therein. The nitride particles are present in a volume fraction in the range of 0.1% to 15.0% and have a particle size in the range of from 0.1 microns to 10.0 microns. The coating may also have oxide particles dispersed therein.Type: GrantFiled: August 19, 2004Date of Patent: January 23, 2007Assignee: United Technologies CorporationInventors: Sudhangshu Bose, Daniel A. Bales, Mark T. Ucasz, Merritt W. Wight, Steven M. Burns, Tyrus E. Royal
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Patent number: 7160628Abstract: A substrate with a patterned opaque coating formable into an opaque aperture in one process is provided. The opaque coating includes at least a bottom layer and a top layer. The bottom and top layers each include a material selected from the group consisting of chrome and chrome oxide. The top layer has a compressive stress, which makes the opaque coating more resistant to pinhole formation during downstream processing.Type: GrantFiled: October 21, 2004Date of Patent: January 9, 2007Assignee: Corning IncorporatedInventors: Robert Bellman, Ljerka Ukrainczyk
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Patent number: 7160630Abstract: The disclosure relates to a corrosion resistant article comprising a metal body and a protective coating applied on at least one surface of said metal body, said protective coating comprising: (a) a zinc layer comprising metallic zinc; (b) a silicate layer comprising at least one silicate; and (c) a lubricant layer comprising at least one lubricant such as, for example, polyethylene wax. In particular, the disclosure relates to a corrosion resistant bolt and/or nut having a protective coating for use in motor vehicles. The protective coating is substantially free of chromates and phosphates and, hence, environmentally acceptable. The article has an excellent coefficient of friction, temperature resistance and anti-corrosion properties.Type: GrantFiled: May 31, 2005Date of Patent: January 9, 2007Assignee: Elisha Holding LLCInventor: Klaus-Peter Klos
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Patent number: 7156743Abstract: An inexpensive mechanical fuse having a high fatigue limit ratio and high rupture reliability, and superior in forming performance, and a method of manufacturing the same are presented. The mechanical fuse is composed of Fe-based sintered alloy, and comprises an inner rim 2 fixed to one power transmission shaft, an outer rim 3 fixed to the other power transmission shaft, and plural arms 4 for linking the inner rim 2 and outer rim 3, which are formed integrally. The arms 4 include rupture portions 6 which are ruptured when exposed to an overload torque. By treating in steam, an iron oxide phase is formed in the surface layer and pore inner wall. The iron oxide phase is effective to form round pores and lower the notch sensitivity. As a result, the fatigue strength and fatigue limit ratio are enhanced.Type: GrantFiled: November 27, 2001Date of Patent: January 2, 2007Assignees: Hitachi Powdered Metals Co., Ltd., Denso CorporationInventors: Tadayuki Tsutsui, Kei Ishii, Yoshihiro Tanimura, Kouji Yamada, Yuuichi Aoki
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Patent number: 7150921Abstract: A bi-layer bond coating for use on metal alloy components exposed to hostile thermal and chemical environment, such as a gas turbine engine, and the method for applying such coatings. The preferred coatings include a bi-layer bond coat applied to the metal substrate using high velocity oxy-fuel (HVOF) thermal spraying. Bi-layer bond coatings in accordance with the invention consist of a dense first inner layer (such as iron, nickel or cobalt-based alloys) that provides oxidation protection to the metal substrate, and a second outer layer having controlled porosity that tends to promote roughness, mechanical compliance, and promotes adherence of the thermal barrier coating (TBC). Preferably, the outer, less dense layer of the bi-layer bond coat is formed from a mixture of metallic powder and polyester to adjust and control the porosity, but without sacrificing mechanical compliance.Type: GrantFiled: May 18, 2004Date of Patent: December 19, 2006Assignee: General Electric CompanyInventors: Warren Arthur Nelson, Jon Conrad Schaeffer, Sharon Trombly Swede, David Vincent Bucci, Joseph Debarro, Terry Howard Strout, Tyrone Robert Mortensen
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Patent number: 7150922Abstract: A beta-phase nickel aluminide (NiAl) overlay coating (24) and method for modifying the grain structure of the coating (24) to improve its oxidation resistance. The coating (24) is deposited by a method that produces a grain structure characterized by grain boundaries (44) exposed at the outer coating surface (36). The grain boundaries (44) may also contain precipitates (40) as a result of the alloyed chemistry of the coating (24). During or after deposition, the overlay coating (24) is caused to form new grain boundaries (34) that, though open to the outer surface (36) of the coating (24), are free of precipitates or contain fewer precipitates (40) than the as-deposited grain boundaries (44). New grain boundaries (34) are preferably produced by causing the overlay coating (24) to recrystallize during coating deposition or after deposition as a result of a surface treatment followed by heat treatment.Type: GrantFiled: December 13, 2002Date of Patent: December 19, 2006Assignee: General Electric CompanyInventors: Irene Spitsberg, Joseph David Rigney, Ramgopal Darolia, Elissa Hae-Kyung Lee, Jeffrey Allan Pfaendtner
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Patent number: 7144637Abstract: The present invention provides a black, chrome-free, multilayer corrosion protection finish designed to meet extended corrosion properties. This corrosion-resistant finish is engineered to meet a minimum of 500 salt spray testing hours to white corrosion, and 1500 salt spray testing hours to red corrosion when tested to ASTM B117 standards. It is also designed to comply with the European Union Directive on End of Life Vehicles. This multilayer system is designed for use on automotive body sheet steel, automotive underbody parts, automotive under-hood parts, and some automotive interior parts specifying a gloss requirement greater than 4. This chrome-free, multilayer finish is a combination of a zinc-iron electroplated substrate, a non-electrolytic phosphate crystal conversion layer using orthophosphoric acid, and a Xylan/Teflon fluorocarbon sealer coating to form a three layer total corrosion protection system.Type: GrantFiled: July 12, 2004Date of Patent: December 5, 2006Inventor: Kurt J. Thomae
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Patent number: 7138188Abstract: A magnetic ribbon or sheet is coated with an electrical insulator prior to formation of a magnetic implement. Manufacture of the magnetic implement is accomplished in a single process without a need for co-winding magnetic and insulator ribbons. Thermal property differences between the magnetic material and the insulator operate during heat treatment to enhance magnetic property modification of the implement.Type: GrantFiled: June 2, 2005Date of Patent: November 21, 2006Assignee: Metglas, Inc.Inventors: Ryusuke Hasegawa, Carl Eugene Kroger
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Patent number: 7135220Abstract: An article is coated with a multi-layer coating having a bronze color. In a preferred embodiment, the coating comprises a nickel or polymer basecoat layer, and a color and protective stack layer comprised of layers of carbon-rich refractory metal or refractory metal alloy carbonitride alternating with layers of nitrogen-rich refractory metal or refractory metal alloy carbonitride. In another embodiment, the alternating layers of the color stack layer may comprise layers of carbon-rich refractory metal carbides or carbon-rich refractory metal alloy carbides alternating with layers of nitrogen-rich refractory metal nitrides or nitrogen-rich refractory metal alloy nitrides.Type: GrantFiled: May 28, 2004Date of Patent: November 14, 2006Assignee: Vapor Technologies Inc.Inventors: Guocon Chen, Bryce Anton
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Patent number: 7129194Abstract: An improved catalyst system that includes a metal support structure and an anti-corrosive layer on the metal support structure, and has improved resistance to corrosion and other degradation under corrosive environments. Typically, a catalyst supporting layer is applied over the anti-corrosive layer.Type: GrantFiled: September 23, 2004Date of Patent: October 31, 2006Assignee: Corning IncorporatedInventors: Adra S. Baca, Lin He, Youchun Shi, Charles M. Sorensen, Jr.
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Patent number: 7110327Abstract: A magnetic recording medium comprises, on a substrate, a recording auxiliary layer, a recording holding layer, recording control layer, and a recording layer. The recording layer is constructed by using a ferri-magnetic material having perpendicular magnetization. The data can be recorded at a super high density by using the recording and reproducing head of the present invention, because the recording layer has the perpendicular magnetization. The disappearance of data, which would be otherwise caused by the thermomagnetic relaxation phenomenon, is suppressed after recording the data, because the recording layer has large coercive force at the room temperature. The data, which is recorded at the super high density on the magnetic recording medium, can be reproduced by using a magnetic resistance element carried on the recording and reproducing head.Type: GrantFiled: July 23, 2002Date of Patent: September 19, 2006Assignee: Hitachi Maxell, Ltd.Inventors: Hiroki Takao, Yuji Yamazaki, Susumu Imai, Hiroyuki Awano, Katsusuke Shimazaki
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Patent number: 7105235Abstract: A reinforced composite material, having isotropic thermal expansion properties and a low coefficient of thermal expansion over at least the temperature range of from about 0° C. to at least about 150° C., which composite material comprises in combination a first continuous phase comprising a three dimensional preformed bonded powder material reinforcement, including a bonding agent, and in which the bonded powder material is chosen from the group consisting of zirconium tungstate, hafnium tungstate, zirconium hafnium tungstate, and mixtures of zirconium tungstate and hafnium tungstate, and a second continuous phase matrix material chosen from the group consisting of aluminium, aluminium alloys in which aluminium is the major component, magnesium, magnesium alloys in which magnesium is the major component, titanium, titanium alloys in which titanium is the major component, engineering thermoplastics and engineering thermoplastics containing a conventional solid filler.Type: GrantFiled: June 13, 2005Date of Patent: September 12, 2006Assignee: Her Majesty the Queen in right of Canada as represented by the Minister of Natural ResourcesInventors: Jason Sin Hin Lo, Nicola Maffei
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Patent number: 7105236Abstract: The subject matter of the invention is a thermal-insulating material having an essentially magnetoplumbitic crystal structure, a metal substrate having a adhesive layer and a thermal-insulating layer made of the thermal-insulating material on its surface, and a process for coating metal substrates with the thermal-insulating material.Type: GrantFiled: July 19, 2005Date of Patent: September 12, 2006Assignee: Deutsches Zentrum fur Luft-und Raumfahrt e. V.Inventors: Bilge Saruhan-Brings, Uwe Schulz, Claus Jürgen Kröder
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Patent number: 7087318Abstract: With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiO2 and/or two or more substances selected from SiO2, Al2O3, LiO2, TiO2 and MgO.Type: GrantFiled: January 23, 2004Date of Patent: August 8, 2006Assignee: Komatsu Ltd.Inventors: Takemori Takayama, Tetsuo Ohnishi, Yoshikiyo Tanaka, Keiichi Maeda, Kan'ichi Sato
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Patent number: 7078112Abstract: A mechanical fuse has further improved and stabilized fatigue limit ratio, and can obtain high reliability under a using condition in which cyclic loading is applied. The mechanical fuse includes a Fe-based sintered alloy that has at least one element of P at 0.15 to 1.5 mass %, Si at 0.4 to 2.0 mass %, and Mn at 1.0 to 4.0 mass %, and the remainder consisting of Fe and inevitable impurities. An iron oxide layer is formed on a pore inner wall and the pores have roundness of 0.004 or more. A method of production therefore is also provided.Type: GrantFiled: June 3, 2004Date of Patent: July 18, 2006Assignees: Hitachi Powdered Metals Co., Ltd., Denso CorporationInventors: Takashi Suzuki, Tadayuki Tsutsui, Kei Ishii, Yoshihiro Tanimura
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Patent number: 7074497Abstract: A coated steel sheet having a coated layer on surfaces of a steel sheet of a composition containing not less than 0.1 mass % and under 3 mass % of Al, wherein a following condition A or B is met: A: An AlN precipitate layer exists on a matrix side near an interface between said steel sheet and said coated layer B: Oxide of Al exists in said matrix right under said surfaces of said steel sheet.Type: GrantFiled: February 26, 2003Date of Patent: July 11, 2006Assignee: JFE Steel CorporationInventors: Yoshitsugu Suzuki, Kazuaki Kyono
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Patent number: 7060365Abstract: A coating material, particularly a thermal barrier coating, for a component intended for use in a hostile environment, such as the superalloy turbine, combustor and augmentor components of a gas turbine engine. The coating material is zirconia that is partially stabilized with yttria and to which lanthana, neodymia and/or tantala are alloyed to increase the impact resistance of the coating.Type: GrantFiled: May 30, 2002Date of Patent: June 13, 2006Assignee: General Electric CompanyInventor: Robert William Bruce
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Patent number: 7060366Abstract: A coated article has a metallic substrate with a substrate composition, and a metallic coating overlying and contacting the metallic substrate. The metallic coating has a metallic-coating composition different from the substrate composition. A protective coating overlies and contacts the metallic coating. The protective coating includes a chromium aluminide layer overlying and contacting the metallic coating, and optionally a thermal barrier coating overlying and contacting the chromium aluminide layer. This structure may be used to restore a key dimension of an article that has previously been in service and to protect the article as well.Type: GrantFiled: February 19, 2003Date of Patent: June 13, 2006Assignee: General Electric CompanyInventors: Bhupendra Kumar Gupta, Wayne Ray Grady, Lyle Timothy Rasch, Thomas Joseph Kelly, Nripendra Nath Das
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Patent number: 7056598Abstract: With the objectives of alleviating the property of attacking on the mating member by scratching-off of local agglutinates on the sliding contact surface, achieving improved wear resistance, and achieving improved seizure resistance through restraint of frictional heat generation by a hard phase, a copper based sintered contact material contains shock-resistant ceramics in an amount of 0.05 to less than 0.5 wt % as non-metallic particles composed of one or more substances selected from pulverized oxides, carbides and nitrides. The shock-resistant ceramics are comprised of SiO2 and/or two or more substances selected from SiO2, Al2O3, LiO2, TiO2 and MgO.Type: GrantFiled: January 23, 2004Date of Patent: June 6, 2006Assignee: Komatsu, Ltd.Inventors: Takemori Takayama, Tetsuo Ohnishi, Yoshikiyo Tanaka, Keiichi Maeda, Kan'ichi Sato
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Patent number: 7052782Abstract: A high-temperature protection layer contains (% by weight) 23 to 27% Cr, 4 to 7% Al, 0.1 to 3% Si, 0.1 to 3% Ta, 0.2 to 2% Y, 0.001 to 0.01% B, 0.001 to 0.01% Mg and 0.001 to 0.01% Ca, remainder Ni and inevitable impurities. Optionally, the Al content is in a range from over 5 up to 6% by weight.Type: GrantFiled: July 19, 2004Date of Patent: May 30, 2006Assignee: ALSTOM Technology Ltd.Inventors: Hans-Peter Bossmann, Dietrich Eckardt, Klaus Erich Schneider, Christoph Toennes
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Patent number: 7045220Abstract: A metal casting fabrication method is provided. In accordance with the method, first a metal plate is disposed in the cavity of molding dies. This metal plate includes a first surface formed with a heat insulating layer, and a second surface opposite to the first surface. With the metal plate placed in the cavity, the heat insulating layer is held in contact with the dies, while the opposite or second surface is partially exposed to the cavity. The injected molten metal properly fills the cavity from end to end since its heat is not conducted unduly to the dies via the metal plate.Type: GrantFiled: September 1, 2004Date of Patent: May 16, 2006Assignee: Fujitsu LimitedInventors: Masanobu Ishiduka, Kouta Nishii, Noriyasu Aso, Koichi Kimura, Takayuki Fujiwara
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Patent number: 7041382Abstract: A coated steel sheet composed of a steel sheet and at least two types of coating layers formed thereon is provided with an electrodeposition painting having a superior appearance. The coated steel sheet has an arithmetic mean roughness Ra, which is defined by JIS B 0601-1994, of from about 0.7 to about 1.5 ?m and a peak per inch PPI of from about 180 to about 250.Type: GrantFiled: July 28, 2003Date of Patent: May 9, 2006Assignee: JFE Steel CorporationInventors: Kyoko Hamahara, Hisatada Nakakoji, Chiaki Kato, Nobuhiko Uesugi, Kazumasa Yoshida, Katsuhiro Takebayashi
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Patent number: 7041383Abstract: This invention provides a thermal barrier ceramic coating for application to a metallic article, with the ceramic coating having a formula of NdxZr1-xOy with Z dissolved in, where 0<x<0.5 and 1.75<y<2 and wherein Z is an oxide of a metal selected from the group consisting of Y, Mg, Ca, Hf and mixtures thereof. In one embodiment Nd is added at a level up to 7 mole %. In another embodiment Z is yttrium and is added at a level of at least 6 wt %.Type: GrantFiled: May 3, 2004Date of Patent: May 9, 2006Assignee: Chromalloy Gas Turbine CorporationInventors: Yourong Liu, Paul Lawton
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Patent number: 7037603Abstract: The invention is directed to a material and a method of producing the material that is unaffected by the low-temperature degradation, humidity-enhanced phase transformation typical of yttria-stabilized zirconia in general, as well as of yttria-stabilized tetragonal zirconia polycrystalline ceramic (Y-TZP). Because of the high fracture toughness and high mechanical strength, this class of materials is widely used, including as implants, such as for the packaging material for small implantable neural-muscular sensors and stimulators. The destructive phase transformation is eliminated by converting the surface to stable cubic or T-prime zirconia by post-densification thermal treatment in a cation-rich milieu.Type: GrantFiled: May 25, 2004Date of Patent: May 2, 2006Assignee: Alfred E. Mann Foundation for Scientific ResearchInventor: Brian J. Lasater
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Patent number: 7037581Abstract: A conductive silicon composite in which particles of the structure that silicon crystallites are dispersed in silicon dioxide are coated on their surfaces with carbon affords satisfactory cycle performance when used as the negative electrode material in a non-aqueous electrolyte secondary cell.Type: GrantFiled: September 19, 2002Date of Patent: May 2, 2006Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Mikio Aramata, Satoru Miyawaki, Susumu Ueno, Hirofumi Fukuoka, Kazuma Momii
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Patent number: 7037596Abstract: This invention relates to a catalytic composition which comprises a coating of a coating material on a support and is obtainable by applying the coating material, comprising (1) a polycondensate of at least one hydrolysable organosilane and also, if desired, one or more compounds of glass-forming elements, and (2) particles of one or more transition metal oxides, the weight ratio of transition metal oxide particles to polycondensate being from 10:1 to 1:10, to the support and subjecting the applied coating material to thermal treatment. The invention also relates to a process for preparing this catalytic composition and to its use for the purpose of deodorizing or oxidizing organic components or carbon.Type: GrantFiled: April 5, 2000Date of Patent: May 2, 2006Assignee: Leibniz-Institut Fuer Neue Materialien Gemeinnuetzige GmbHInventors: Thomas Benthien, Stefan Faber, Gerhard Jonschker, Stefan Sepeur, Helmut Schmidt, Philipp Stoessel
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Patent number: 7037595Abstract: A thin layer of hafnium oxide or stacking of thin layers comprising hafnium oxide layers for producing surface treatments of optical components, or optical components, in which at least one layer of hafnium oxide is in amorphous form and has a density less than 8 gm/cm3. The layer is formed by depositing on a substrate without energy input to the substrate.Type: GrantFiled: November 15, 1999Date of Patent: May 2, 2006Assignee: Commissariat a l'Energie AtomiqueInventors: Bernard Andre, Jean Dijon, Brigitte Rafin
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Patent number: 7033521Abstract: A piezoelectric actuator includes: a buffer layer that is composed of an oxide or a nitride epitaxially formed on a Si substrate; a bottom electrode formed on the buffer layer, being composed of a transition metal oxide, and having a pseudo-cubic (100) or (111) orientation with a perovskite structure; a piezoelectric layer formed on the bottom electrode being composed of (Ba1?xMx)(Ti1?yZy)O3 (where (M=Sr or Ca and 0?x?0.3) (Z=Zr or Hf and 0?y?0.2)) with a pseudo-cubic (001) or (111) orientation; and a top electrode that is formed on the piezoelectric layer. In this way, a piezoelectric actuator that uses barium titanate as the piezoelectric body and does not include Pb is provided.Type: GrantFiled: March 25, 2003Date of Patent: April 25, 2006Assignee: Seiko Epson CorporationInventors: Setsuya Iwashita, Takamitsu Higuchi, Hiromu Miyazawa
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Patent number: 7011894Abstract: A protective coating forming a thermal barrier is made on a superalloy metal substrate by forming a bonding underlayer on the substrate, the bonding underlayer being constituted by an intermetallic compound comprising at least aluminum and a metal from the platinum group, and by forming a ceramic outer layer which is anchored on a film of alumina present on the surface of the bonding underlayer. The bonding underlayer preferably has a thickness of less than 50 ?m and is made by using physical vapor deposition, e.g. by cathode sputtering, to deposit a plurality of individual layers alternately of aluminum and of a metal from the platinum group, and by causing the metals in the resulting layers to react together exothermally.Type: GrantFiled: June 5, 2003Date of Patent: March 14, 2006Assignee: Snecma MoteursInventors: Bertrand Saint Ramond, John Nicholls
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Patent number: 7005195Abstract: A material and method for adhering at least two materials that includes the step of interposing at least one intermediate layer between the two materials and associated adhesion material. The materials to be adhered exhibit at least one characteristic dissimilarity and the intermediate material interposed contains at least one shape memory alloy, the shape memory alloy capable of exhibiting superelasticity.Type: GrantFiled: February 8, 2005Date of Patent: February 28, 2006Assignees: General Motors Corporation, Michigan State UniversityInventors: Yang-Tse Cheng, Wangyang Ni, Leonid Charles Lev, Michael J. Lukitsch, David S. Grummon, Anita M. Weiner
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Patent number: 6989213Abstract: The invention relates to a metal bipolar plate for a fuel cell, provided with a low-ohmic chemically stable coating. According to the invention, said coating is a multi-phase coating, at least in the region of the contacting outer surface thereof. One phase is a metal phase and/or ? phase belonging thereto and another phase is a compound phase consisting of one or several metals of the metal phase and one of the elements N,O,C,B.Type: GrantFiled: April 6, 2001Date of Patent: January 24, 2006Assignee: Ballard Power Systems Inc.Inventors: Wolfram Kaiser, Detlev Repenning, Richard Spaeh, Joerg Wind
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Patent number: 6989200Abstract: The invention is a method of bonding a ceramic part to a metal part by heating a component assembly comprised of the metal part, the ceramic part, and a compatible interlayer material such as titanium-nickel alloy placed between the two parts and heated at a temperature that is greater than the eutectic temperature of the interlayer material, where alloys, intermetallics or solid solution formed between the metal part and the metal interlayer material, but that is less than the melting point of either the ceramic part or the metal part. The component assembly is held in intimate contact at temperature in a non-reactive atmosphere for a sufficient time to develop a hermetic and strong bond between the ceramic part and the metal part. The bonded component assembly is optionally treated with acid to remove unwanted materials, to assure a biocompatible component assembly for implantation in living tissue.Type: GrantFiled: October 30, 2003Date of Patent: January 24, 2006Assignee: Alfred E. Mann Foundation for Scientific ResearchInventors: Charles L. Byers, Guangqiang Jiang, Gary D. Schnittgrund
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Patent number: 6982126Abstract: A thermal barrier coating (TBC) for a component intended for use in a hostile thermal environment. The TBC has an interior region and an outer surface region on and contacting the interior region. Both regions are formed of a ceramic material, with the interior region having a lower thermal conductivity than zirconia partially stabilized by about seven weight percent yttria. The interior region constitutes more than half of the thickness of the TBC, and the outer surface region constitutes less than half of the thickness of the TBC. The TBC has a columnar microstructure whereby the interior region and the outer surface region comprise columns of their ceramic materials. The outer surface region is more erosion and impact resistant than the interior region at least in part as a result of the columns thereof being more closely spaced than the columns of the interior region.Type: GrantFiled: November 26, 2003Date of Patent: January 3, 2006Assignee: General Electric CompanyInventors: Ramgopal Darolia, Irene Spitsberg, Brett Allen Rohrer Boutwell, Mark Daniel Gorman, Curtis Alan Johnson, Venkat Subramaniam Venkataramani
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Patent number: 6982047Abstract: The present invention improves the oxidation resistance of an ultrafine metal powder for use in the internal electrode of a multilayer ceramic capacitance and suppresses an increase in the thickness of a metal internal electrode film resulting from the spheroidization of the molten metal under surface tension during the formation of the metal internal electrode film. The ultrafine metal powder has a sulfur-containing compound of not less than one element selected from the group consisting of Y, Zr, and La present on the surface of the particle thereof and is produced by performing an ultrafine metal powder purification step of dispersing the ultrafine metal powder in a slurry, a surface treatment step of adding an aqueous solution containing a sulfate of not less than one element selected from the group consisting of Y, Zr, and La to the slurry to form the compound on the surface of the metal particle, a filtering step, and a drying step.Type: GrantFiled: November 14, 2003Date of Patent: January 3, 2006Assignee: Kawatetsu Mining Co., Ltd.Inventor: Morishige Uchida
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Patent number: 6974637Abstract: An article and TBC coating system thereon that in combination exhibit significantly improved spallation resistance. The article comprises a substrate formed of a metal alloy containing ruthenium and one or more refractory elements (e.g., tantalum, tungsten, molybdenum, rhenium, hafnium, etc.). The substrate is protected by a coating system comprising an aluminum-containing bond coat on the surface of the substrate and a ceramic coating bonded to the substrate by the bond coat. The bond coat, preferably an aluminide, is deposited so as to be substantially free of ruthenium, though ruthenium is present in the bond coat as a result of diffusion from the substrate into the bond coat.Type: GrantFiled: December 19, 2003Date of Patent: December 13, 2005Assignee: General Electric CompanyInventors: Jeffrey Allan Pfaendtner, Deborah A. Schorr, Ramgopal Darolia, Joseph David Rigney, Irene Spitsberg, William Scott Walston
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Patent number: 6974641Abstract: A coating material (20) for coating a machine component (10), especially a gas turbine or a part thereof, comprises a mixture of at least a refractory material and an indicator material having an optical emission (e.g. fluorescence) spectrum which varies in response to a physical parameter of the coated component. In a preferred embodiment, the coating consists of yttrium aluminium garnet (YAG) or yttrium stabilised zirconium. The dopant is preferably a rare earth metal, e.g. Eu, Tb, Dy.Type: GrantFiled: July 26, 1999Date of Patent: December 13, 2005Assignee: Southside Thermal Sciences (STS) LimitedInventors: Kwang-Leong Choy, Andrew Lawrence Heyes, Joorg Feist
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Patent number: 6974636Abstract: A turbine engine component comprising a substrate made of a nickel-base or cobalt-base superalloy and a protective coating overlying the substrate, the coating formed by electroplating at least two platinum group metals selected from the group consisting of platinum, palladium, rhodium, ruthenium and iridium. The protective coating is typically heat treated to increase homogeneity of the coating and adherence with the substrate. The component typically further comprises a ceramic thermal barrier coating overlying the protective coating. Also disclosed are methods for forming the protective coating on the turbine engine component by electroplating the platinum group metals.Type: GrantFiled: September 22, 2003Date of Patent: December 13, 2005Assignee: General Electric CompanyInventors: Ramgopal Darolia, Mark Daniel Gorman, Melvin Robert Jackson, Ji-Cheng Zhao