Refractory Metal Salt Or Oxide Patents (Class 428/472)
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Patent number: 7722959Abstract: A thermal barrier coating system for use on a turbine engine component which reduces sand related distress is provided. The coating system comprises at least one first layer of a stabilized material selected from the group consisting of zirconia, hafnia, and titania and at least one second layer containing at least one of oxyapatite and garnet. Where the coating system comprises multiple first layers and multiple second layers, the layers are formed or deposited in an alternating manner.Type: GrantFiled: September 6, 2006Date of Patent: May 25, 2010Assignee: United Technologies CorporationInventors: Kevin W. Schlichting, David A. Litton, Michael J. Maloney, Melvin Freling, John G. Smeggil, David B. Snow
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Patent number: 7722923Abstract: Method for producing a multifunctional material includes thermally treating a substrate having a surface layer formed of titanium, titanium oxide, a titanium alloy, or a titanium alloy oxide so that the temperature of the surface layer is raised to 600° C. or higher, to thereby provide, in the interior of the surface layer, a second layer formed of forest microcolumns of titanium oxide or a titanium alloy oxide; and subsequently cutting the second layer in parallel with the surface layer, to yield a material including the substrate and a layer formed of titanium-oxide- or titanium-alloy-oxide-formed forest microcolumns exposed on at least a portion of the substrate, as well as a material including a thin film, numerous continuous small-width with protrusions thereon, and forest microcolumns formed on the protrusions.Type: GrantFiled: February 16, 2006Date of Patent: May 25, 2010Assignee: Central Research Institute of Electric Power IndustryInventor: Masahiro Furuya
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Patent number: 7718270Abstract: The multifunctional material can readily adsorb even VOCs, which exhibits high photocatalytic activity and functions as visible-light-responsive photocatalyst by virtue of a large surface area and of being doped with carbon, has high hardness and exhibits excellent exfoliation resistance, wear resistance, resistance to chemicals, and heat resistance. The multifunctional material has a large number of protrusions of titanium oxide or a titanium alloy oxide on at least a portion of a surface of the material for example forest microcolumns of titanium oxide, the layer being exposed on the surface and the microcolumns being doped with carbon.Type: GrantFiled: February 16, 2006Date of Patent: May 18, 2010Assignee: Central Research Institute of Electric Power IndustryInventor: Masahiro Furuya
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Patent number: 7712222Abstract: A composite utility blade and method of making such a blade involves butt joining a high speed or tool steel wire to a front edge of an alloy steel backing strip. The wire defines a predetermined cross-sectional shape that substantially corresponds to the cross-sectional shape of the cutting edge of the blade. The wire is electron beam welded to the backing strip to form a composite strip defining a first metal portion formed by the alloy steel backing strip, a second metal portion formed by the high speed or tool steel wire, and a weld region joining the first and second metal portions. The composite strip is then annealed, and the annealed strip is straightened to eliminate any camber therein. The annealed composite strip is then hardened such that the first metal portion defines a first surface hardness and the second metal portion defines a second surface hardness greater than the first surface hardness.Type: GrantFiled: March 4, 2004Date of Patent: May 11, 2010Assignee: Irwin Industrial Tool CompanyInventors: William B. Korb, Brian K. Douglas, Dayananda Sukadhare, Gary F. Scott
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Patent number: 7713635Abstract: A copper oxide thin film mainly containing CuO is formed by a plasma film-forming process on a substrate for film formation. The friction coefficient of the copper oxide thin film can be controlled remarkably low.Type: GrantFiled: April 23, 2004Date of Patent: May 11, 2010Assignee: National Institute for Materials ScienceInventors: Masahiro Goto, Akira Kasahara, Masahiro Tosa, Kazuhiro Yoshihara
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Publication number: 20100104823Abstract: Devices and components that can interact with or modify propagation of electromagnetic waves are provided. The design, fabrication and structures of the devices exploit the properties of reactive composite materials (RCM) and reaction products thereof.Type: ApplicationFiled: March 11, 2009Publication date: April 29, 2010Inventors: Roderick A. Hyde, Muriel Y. Ishikawa, Edward K.Y. Jung, Jordin T. Kare, Nathan P. Myhrvold, Thomas J. Nugent, JR., Clarence T. Tegreene, Charles Whitmer, Lowell L. Wood, JR.
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Publication number: 20100098961Abstract: An intermediate thermal expansion coefficient coating including an NiCoCrAly alloy. The coating contains nanoparticles of the alloy and alumina. A nanocomposite coating is placed on metals to protect them from high gas temperatures by providing thermal insulation. The nanocomposite coating includes a bond coating, an intermediate thermal expansion coefficient coating, and a ceramic top coat. The intermediate thermal expansion coefficient coating comprises a NiCoCrAly alloy and allumina nanoparticles and has a ceramic top coat which is based on zirconi or high purity alumina.Type: ApplicationFiled: October 5, 2006Publication date: April 22, 2010Inventors: Otto Gregory, Markus Downey, Stephen Wnuk, Vincent Wnuk
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Patent number: 7695830Abstract: An article having a thermal barrier coating includes a superalloy substrate having a columnar grained ceramic coat formed thereon. The ceramic coat includes a nanolaminate region comprising repeating layers of ceramic material with each layer being less than 500 nm in thickness, with dispersions of metal oxide doping material situated between each of the layers. The ceramic coat further includes a non-doped region having a thickness greater than 500 nm adjacent to the nanolaminate region, the non-doped region including one layer or a plurality of adjacent layers of ceramic material without dispersions of metal oxide doping material situated between each of the layers. In one embodiment, and by way of example only, a bond coat is formed between the substrate and the columnar grained ceramic coat. According to another embodiment, the superalloy substrate forms an adherent alumina scale, and no bond coat is necessary.Type: GrantFiled: September 6, 2006Date of Patent: April 13, 2010Assignee: Honeywell International Inc.Inventors: Thomas E. Strangman, Derek Raybould
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Publication number: 20100086756Abstract: A decorative part and a process for producing the decorative part. A first nitride layer containing at least one metal selected among hafnium, titanium, and zirconium is formed on the surface of a decorative part comprising a soft base made of a material selected among stainless steel, titanium and titanium alloys, brass, etc., and a second nitride layer containing at least one metal which is selected among hafnium, titanium, and zirconium and is different from that in the first nitride layer is formed on the first nitride layer to thereby form a primer layer. A multilayered hardened layer including a gold alloy layer is further formed as a finish layer on the primer layer.Type: ApplicationFiled: September 25, 2007Publication date: April 8, 2010Applicant: CITIZEN HOLDINGS CO., LTD.Inventors: Yukio Miya, Koichi Naoi, Osamu Tanaka, Yoshitsugu Shibuya, Junji Sato
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Patent number: 7682706Abstract: The present invention provides a precoated metal sheet excellent in the coating material adhesion and having little affect on environment. The precoated metal sheet of the invention is a precoated metal sheet comprising a metal or plated metal sheet having stacked on the surface thereof at least a coat layer and an organic resin layer, the metal or plated metal sheet mainly comprising zinc and aluminum and the coat layer mainly comprising one or both of a metal oxide and a metal hydroxide each using a metal species exclusive of chromium.Type: GrantFiled: December 2, 2004Date of Patent: March 23, 2010Assignee: Nippon Steel CorporationInventors: Hiromasa Shoji, Koki Tanaka, Hiromasa Nomura, Yuji Kubo, Takeshi Hamada
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Patent number: 7678465Abstract: Aluminophosphate compounds, compositions and/or materials as can be used for substrate coatings.Type: GrantFiled: July 24, 2003Date of Patent: March 16, 2010Assignee: Applied Thin Films, Inc.Inventors: Sankar Sambasivan, Kimberly A. Steiner
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Publication number: 20100062245Abstract: The invention relates to a substrate (10), especially a transparent glass substrate, provided with a thin-film multilayer coating comprising an alternation of n functional layers (40) having reflection properties in the infrared and/or in solar radiation, especially metallic functional layers based on silver, and (n+1) dielectric films (20, 60), where n?1, said films being composed of a layer or a plurality of layers (22, 24, 62, 64), so that each functional layer (40) is placed between at least two dielectric films (20, 60), characterized in that at least one functional layer (40) includes a blocker film (30, 50) consisting of: on the one hand, an interface layer (32, 52) immediately in contact with said functional layer, this interface layer being made of a material that is not a metal; and on the other hand, at least one metal layer (34, 54) made of a metallic material, immediately in contact with said interface layer (32, 52).Type: ApplicationFiled: November 8, 2006Publication date: March 11, 2010Applicant: Saint-Gobain Glass FranceInventors: Estelle Martin, Nicolas Nadaud, Sylvain Belliot, Eric Mattmann, Pascal Reutler
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Patent number: 7674520Abstract: The present invention describes a cutting tool with improved properties for metal machining having a substrate of cemented carbide and a hard and wear resistant coating on the surface of said substrate. The coating is deposited by Physical Vapor Deposition (PVD). The coating is composed of metal nitrides in combination with alumina (Al2O3). The coating is composed of a laminar multilayered structure. The insert is further treated to have different outer layers on the rake face and flank face respectively.Type: GrantFiled: August 31, 2006Date of Patent: March 9, 2010Assignee: Sandvik Intellectual Property ABInventor: Veit Schier
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Patent number: 7670688Abstract: An erosion-resistant article for use as a component in plasma process chamber. The erosion-resistant article comprises a support and an oxide coating comprising yttrium, which is disposed over the support. The support and the oxide coating preferably have material compositions that differ from one another in coefficient of thermal expansion by no more than 5×10?6/K. Preferred oxide coating compositions include yttria and yttrium aluminum garnet. Preferred supports include alumina supports and aluminum-silicon carbide supports.Type: GrantFiled: June 25, 2001Date of Patent: March 2, 2010Assignee: Applied Materials, Inc.Inventors: Tony S. Kaushal, You Wang, Ananda H. Kumar
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Patent number: 7670674Abstract: There is described a cutting tool with improved properties for metal machining having a substrate of cemented carbide and a hard and wear resistant coating on the surface of said substrate. The coating is deposited by Physical Vapor Deposition (PVD). The coating is composed of metal nitrides in combination with alumina (Al2O3). The coating is composed of a laminar multilayered structure. The insert is further treated to have different outer layers on the rake face, and flank face respectively.Type: GrantFiled: August 31, 2006Date of Patent: March 2, 2010Assignee: Sandvik Intellectual Property ABInventor: Veit Schier
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Publication number: 20100044219Abstract: The present invention relates to an electrocatalytic coating and an electrode having the coating thereon, wherein the coating is a mixed metal oxide coating, preferably ruthenium, titanium and tin or antimony oxides. The coating uses water as a solvent that provides for a smoother surface than alcohol based solvents. The electrocatalytic coating can be used especially as an anode component of an electrolysis cell and in particular a cell for the electrolysis of aqueous chlor-alkali solutions.Type: ApplicationFiled: October 29, 2009Publication date: February 25, 2010Applicant: Eltech Systems CorporationInventors: Richard C. Carlson, Kenneth L. Hardee, Dino F. DiFranco, Michael S. Moats
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Patent number: 7666515Abstract: An article comprising a turbine component other than an airfoil having a metal substrate and a ceramic corrosion resistant coating overlaying the metal substrate. This coating has a thickness up to about one micrometer and consists of a ceramic composition that comprises a ceramic metal oxide selected from the group consisting of zirconia, hafnia and mixtures thereof. This coating can be formed by alternative methods to have different microstructures, including a dense matrix or a strain-tolerant columnar grain structure.Type: GrantFiled: March 31, 2005Date of Patent: February 23, 2010Assignee: General Electric CompanyInventors: Bangalore Aswatha Nagaraj, Brian Thomas Hazel, Jeffrey Allan Pfaendtner
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Patent number: 7666516Abstract: A ceramic thermal barrier coating (8) for coating the surface (7) of a component (1) of a nickel-based superalloy, and an adhesive coating optionally applied thereon (6), preferably a gas turbine component, includes zirconium oxide (ZrO2) stabilized by yttrium oxide (Y2O3) and production-related impurities, as well as at least one high-temperature and oxidation resistant intermetallic compound, for example NiAl, YRh, ErIr, the volume fraction of which decreases continuously or in stages as the distance from the surface (7) of the component (1)/the adhesive coating (6) increases. Advantageously, a less steep stress gradient is produced by gradually varying the composition of the thermal barrier coating (8).Type: GrantFiled: January 4, 2008Date of Patent: February 23, 2010Assignee: ALSTOM Technology Ltd.Inventor: Mohamed Youssef Nazmy
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Patent number: 7662489Abstract: A turbine engine component is provided which has a substrate and a thermal barrier coating applied over the substrate. The thermal barrier coating comprises at least one layer of a first material selected from the group consisting of a zirconate, a hafnate, a titanate, and mixtures thereof, which first material has been mixed with, and contains, from about 25 to 99 wt % of at least one oxide. The at least one oxide comprises at least one oxide of a material selected from the group consisting of lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, indium, and yttrium. If desired, a metallic bond coat may be present between the substrate and the thermal barrier coating system. A method for forming the thermal barrier coating system of the present invention is described.Type: GrantFiled: January 20, 2006Date of Patent: February 16, 2010Assignee: United Technologies CorporationInventors: David A. Litton, Kevin W. Schlichting, Melvin Freling, John G. Smeggil, David B. Snow, Michael J. Maloney
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Patent number: 7662464Abstract: An anti-reflection coating anti-reflection coating with low resistivity function and transparent conductive coating as outermost layer is disclosed. The anti-reflection coating contains a transparent conductive oxide as a surface layer and has a photo reflectance below 0.5%. The resistivity of the anti-reflection coating is between 0.5? and 0.7? per square, and its transparency is between 55% and 70%.Type: GrantFiled: April 4, 2007Date of Patent: February 16, 2010Assignee: Innovation & Infinity Global Corp.Inventor: Cheng-Chieh Chang
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Publication number: 20100028699Abstract: The invention relates to the field of material sciences and relates to a metal-ceramic composite with good adhesive strength, such as can be used, for example, for forming tools or cutting tools. The object of the present invention lies in the disclosure of a metal-ceramic composite with good adhesive strength which has a strong and durable bond between ceramic and metal. The object is attained with a metal-ceramic composite with good adhesive strength, comprising a metal component and a ceramic component and which are connected to one another by adhesive force or by adhesive force and in a non-positive manner, wherein silicon, beryllium, titanium, chromium, nickel, manganese, hafnium, vanadium, zirconium, aluminum and/or the organic compounds thereof is present in the area of the connection surfaces and wherein the components have been processed as a greenbody to form a composite and jointly sintered.Type: ApplicationFiled: December 11, 2007Publication date: February 4, 2010Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.Inventors: Reinhard Lenk, Tassilo Moritz, Andreas Baumann
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Patent number: 7655214Abstract: Valve metal suboxides having a primary suboxide phase and optionally a secondary suboxide phase, a valve metal phase, and/or at least one tertiary suboxide phase can be present in varying amounts. Also disclosed is anodes and capacitors containing the valve metal suboxides of the present invention. Also, a method to prepare a valve metal suboxide is further described which includes granulating one or more of the starting materials individually or together and/or granulating the final product.Type: GrantFiled: February 25, 2004Date of Patent: February 2, 2010Assignee: Cabot CorporationInventors: David M. Reed, Sridhar Venigalla, Jeffrey A. Kerchner
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Patent number: 7655280Abstract: A extreme low resistivity light attenuation anti-reflection coating structure includes a substrate, a coating module, and a composed protection coating layer. The coating module is formed on a front surface of the substrate. The coating module is composed of a plurality of Ti-based oxide coating layers and a plurality of metal coating layers that are alternately stacked with each other. The composed protection coating layer is formed on the coating module.Type: GrantFiled: October 5, 2007Date of Patent: February 2, 2010Assignee: Innovation & Infinity Global Corp.Inventors: Cheng-Chieh Chang, Shiu-Feng Liu, Pi-Jui Kuo
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Publication number: 20100014271Abstract: The capacitor material of the present invention is comprised by laminating a titanium dioxide layer and a titanate compound layer having perovskite crystals.Type: ApplicationFiled: January 25, 2008Publication date: January 21, 2010Applicant: Showa Denko K.K.Inventors: Akihiko Shirakawa, Ryuichi Mitsumoto, Koji Tokita
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Patent number: 7648736Abstract: A cutting tool insert includes a cemented carbide substrate and a coating. The cemented carbide substrate comprises WC, 4-7 wt % cobalt, 6-9 wt % cubic carbide forming metals from the groups IVB and VB, preferably titanium, tantalum and niobium, with a binder phase enriched surface zone with a thickness of >20 ?m, preferably between 21 and 50 ?m. The coating comprises a first layer adjacent the cemented carbide substrate of Ti(C,N) having a thickness of from about 3 to about 15 ?m, an alumina layer adjacent said first layer having a thickness of from about 3 to about 15 ?m, said alumina layer being composed of ?-Al2O3, a further layer adjacent the alumina layer of a Ti(C,N) or Ti(C,O,N) having a thickness of from about 1 to 10 ?m. The total thickness of the coating being less than 30 ?m, preferably less than 20 ?m. Inserts according to the invention exhibit favourable wear resistance and edge strength when turning steel.Type: GrantFiled: November 20, 2006Date of Patent: January 19, 2010Assignee: Seco Tools ABInventors: Sakari Ruppu, Jenni Zackrisson, Rolf Olofsson
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Publication number: 20100009144Abstract: In addition to good thermal barrier properties, thermal barrier coating systems also have to have a long thermal barrier coating service life. The coating system according to the invention comprises a specially adapted layer sequence made up of metallic bonding layer, which consists of an NiCoCrAlX, inner ceramic layer and outer ceramic layer, at least 80% of which is made up of the pyrochlore phase Gd2Zr2O7 or Gd2Hf2O7.Type: ApplicationFiled: October 13, 2006Publication date: January 14, 2010Inventors: Eckart Schumann, Ramesh Subramanian
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Publication number: 20100008808Abstract: A highly reliable sliding face modification material capable of forming a stable film of molybdenum disulfide on the sliding face of a sliding member, the sliding face modification material having a molybdenum disulfide content of 95 wt % or more and an organic material content of 1500 ppm or less in weight ratio, and the sliding face modification material being projected onto the sliding face to form a coating layer.Type: ApplicationFiled: October 15, 2007Publication date: January 14, 2010Inventors: Yuuki Yoshimi, Yoichiro Nakamura, Hirotaka Kawabata, Masato Ishiwata, Masato Hinata, Katsuhiro Shikano
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Patent number: 7641981Abstract: A metal material having a coating formed by a surface treatment on the surface of the metal material is provided. The coating has an excellent corrosion resistance with or without a further coating that is equivalent or superior to the prior art coating formed by zinc phosphate treatment or chromate treatment, is free from sludge formation or environmentally harmful components, and is formed by using a component capable of deposition with a simple method.Type: GrantFiled: March 15, 2006Date of Patent: January 5, 2010Assignee: Nihon Parkerizing Co., Ltd.Inventors: Hiroyuki Sato, Takaomi Nakayama, Toshiyuki Aishima
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Patent number: 7638172Abstract: A non-chromate aqueous metal surface treating composition is provided comprising water and an organosilicon compound obtained through hydrolysis of a mixture of a hydrolyzable silane bearing a nitrogen-containing organic group or a partial hydrolyzate thereof and another hydrolyzable silane or a partial hydrolyzate thereof. The surface treating composition is applied to steel members, giving surface treated steel members having high corrosion resistance and workability. When an overcoat layer is formed thereon, painted steel members of quality are manufactured.Type: GrantFiled: March 22, 2006Date of Patent: December 29, 2009Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kazuyuki Matsumura, Mitsuo Asai
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Publication number: 20090311516Abstract: A method for making a Ti-based composite material, comprising steps of: providing a Ti-based block; forming an aluminum layer on the Ti-based block; anodizing the aluminum layer to form a transparent aluminum oxide film; and continuing the anodizing process to form a titanium oxide film between the aluminum oxide film and the Ti-based block. Thus the aluminum oxide film is located at an outmost side of the Ti-base composite material for protecting the composite material from contamination. The titanium oxide film is located between the Ti-based block and the aluminum oxide film for enhancing an aesthetic feeling of products made of the Ti-based composite materials.Type: ApplicationFiled: March 26, 2009Publication date: December 17, 2009Applicant: Foxconn Technology Co., Ltd.Inventor: PAI-SHENG WEI
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Patent number: 7622196Abstract: The invented method of cladding a metal component includes creating a frit mixture in a defined ratio; wetting the mixture by adding a wetting agent in a defined volume; agitating the wetted mixture; applying the agitated mixture to a metal component by one or more processes; de-wetting the metal component having the applied mixture by gradually heating the same to a temperature from approximately 250 degrees Fahrenheit (° F.) up to a high of approximately 450° F.; and, fusing the de-wetted metal component at a temperature of no more than 125% of a defined withstand temperature for the clad metal component. Invented compositions can include one or more of liquid and/or colloidal sodium, potassium and/or lithium silicate, clay and/or clays, a compound of hollow micro-spheres (e.g.Type: GrantFiled: August 11, 2006Date of Patent: November 24, 2009Assignee: Applied Technology Laboratories LLCInventor: Gary Wilson
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Patent number: 7622195Abstract: A process of coating an article includes the steps of (1) applying a ceramic based compound to at least one surface of an article to form a layer of ceramic based compound; (2) applying at least one inert compound upon the ceramic based compound layer to form a protective layer, wherein the at least one inert compound is composed of a first inert compound having a cubic crystalline structure of formula (I) A3B2X3O12, or a second inert compound comprising a hexagonal crystalline structure of formula (II) A4B6X6O26, or a mixture of the first inert compound and the second inert compound; (3) optionally drying the coated article; (4) optionally repeating steps (2) and (3); and (5) heat treating the coated article.Type: GrantFiled: January 10, 2006Date of Patent: November 24, 2009Assignee: United Technologies CorporationInventors: Kevin W. Schlichting, David A. Litton, Michael J. Maloney, Melvin Freling, John G. Smeggil, David B. Snow
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Patent number: 7618712Abstract: A component for use in a combustion turbine (10) is provided that includes a substrate (212) and an abradable coating system (216) deposited on the substrate (212). A planar proximity sensor (250) may be deposited beneath a surface of the abradable coating system (216) having circuitry (252) configured to detect intrusion of an object (282) into the abradable coating system (216). A least one connector (52) may be provided in electrical communication with the planar proximity sensor (250) for routing a data signal from the planar proximity sensor (250) to a termination location (59). A plurality of trenches (142) may be formed at respective different depths below the surface of the abradable coating system (216) with a planar proximity sensor (250) deposited within each of the plurality of trenches (142).Type: GrantFiled: November 8, 2005Date of Patent: November 17, 2009Assignee: Siemens Energy, Inc.Inventors: Stephen M. Sabol, Ramesh Subramanian, Anand A. Kulkarni
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Publication number: 20090267129Abstract: A dielectric multilayer structure of a microelectronic device, in which a leakage current characteristic and a dielectric constant are improved, is provided in an embodiment. The dielectric multilayer structure includes a lower dielectric layer, which is made of amorphous silicate (M1-xSixOy) or amorphous silicate nitride (M1-xSixOyNz), and an upper dielectric layer which is formed on top of the lower dielectric layer and which is made of amorphous metal oxide (M'Oy) or amorphous metal oxynitride (M'OyNz).Type: ApplicationFiled: July 6, 2009Publication date: October 29, 2009Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-Pyo KIM, Jong-Ho LEE, Hyung-Suk JUNG, Jung-Hyoung LEE
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Patent number: 7608337Abstract: To provide a chemical conversion-treated metal sheet excellent in the corrosion resistance and coating adhesion, free from elution of chromium oxide and small in the environmental load, there is provided a chemical conversion-treated metal sheet comprising a metal sheet having on at least one surface thereof an inorganic film, wherein the inorganic film is a film comprising as a main component one or both of a metal oxide and a metal hydroxide exclusive of Cr and the film contains F.Type: GrantFiled: November 18, 2004Date of Patent: October 27, 2009Assignee: Nippon Steel CorporationInventors: Koki Tanaka, Masao Kimura, Hiromasa Shoji, Hiromasa Nomura
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Patent number: 7604867Abstract: A composition comprising a glass-forming binder component and a particulate corrosion resistant component. The particulate corrosion resistant component comprises corrosion resistant particulates having: a CTEp of at least about 4 and being solid at a temperature of about 1300° F. (704° C.) or greater; and a maximum median particle size defined by one of the following formulas: (a) for a CTEp of 8 or less, an Mp equal to or less than (4.375×CTEp)?10; and (b) for a CTEp of greater than 8, an Mp equal to or less than (?4.375×CTEp)+60, wherein CTEp is the average CTE of the corrosion resistant particulates and wherein Mp is the median equivalent spherical diameter (ESD), in microns, of the corrosion resistant particulates. Also disclosed is an article comprising a turbine component comprising a metal substrate and a corrosion resistant coating overlaying the metal substrate, as well as a method for forming at least one layer of the corrosion resistant coating adjacent to the metal substrate.Type: GrantFiled: December 20, 2005Date of Patent: October 20, 2009Assignee: General Electric CompanyInventors: Brian Thomas Hazel, Michael James Weimer
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Patent number: 7597971Abstract: The present invention relates to a thermal barrier coating material having the chemical composition of (1?n)CeO2-nZrO2-0.5R2O3, where n is in the range of 0.9?n?0 and R is selected from a group consisting of Nd, Sm, Eu, Gd, Tb and combinations of at least two among them. It possesses a thermal expansion coefficient higher than 12×10?6 K?1 from ambient temperature up to 1200° C. and superior to those of the presently widely-used thermal barrier coating materials. Even if it is subjected to long time calcinations at 1400° C. or is quenched to room temperature, it can still maintain the stable crystal structure. In addition, its thermal expansion trend matches quite well with that of the bond coating alloy. This is beneficial to the elimination of thermal stress generated between the substrate and the ceramic top coating during the thermal cycle and can significantly improve the thermal shock resistance of the coating.Type: GrantFiled: September 2, 2005Date of Patent: October 6, 2009Assignee: Changchun Institute of Applied Chemistry Chinese Academy of ScienceInventors: Hui Dai, Jiayan Li, Xueqiang Cao, Jian Meng
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Patent number: 7597966Abstract: A thermal barrier coating and deposition process for a component intended for use in a hostile thermal environment, such as the turbine, combustor and augmentor components of a gas turbine engine. The TBC has a first coating portion on at least a first surface portion of the component. The first coating portion is formed of a ceramic material to have at least an inner region, at least an outer region overlying the inner region, and a columnar microstructure whereby the inner and outer regions comprise columns of the ceramic material. The columns of the inner region are more closely spaced than the columns of the outer region so that the inner region of the first coating portion is denser than the outer region of the first coating portion, wherein the higher density of the inner region promotes the impact resistance of the first coating portion.Type: GrantFiled: June 10, 2005Date of Patent: October 6, 2009Assignee: General Electric CompanyInventors: Irene Spitsberg, Brett Allen Rohrer Boutwell, Robert William Bruce, Curtis Alan Johnson, Bangalore Aswatha Nagaraj, William Scott Walston
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Patent number: 7595114Abstract: An environmental barrier coating for a component including silicon that has a first coefficient of thermal expansion is provided. The environmental coating includes a silicon bondcoat that is bonded to at least a portion of an outer surface of the component. An intermediate layer is bonded to the silicon bondcoat and has a second coefficient of thermal expansion matched to the first coefficient of thermal expansion. The intermediate layer has a general composition of RE2Si2O7. A protective layer is bonded to the intermediate layer and has a general composition of RE2SiO5. A surface layer is bonded to the protective layer. The surface layer includes RE and has a ratio of RE to oxygen of at least 2:3.Type: GrantFiled: December 9, 2005Date of Patent: September 29, 2009Assignee: General Electric CompanyInventors: Peter Joel Meschter, Curtis Alan Johnson, Krishan Lal Luthra, Reza Sarrafi-Nour
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Patent number: 7592071Abstract: Thermal barrier coating layer systems, in addition to good thermal barrier properties, also have to have a long service life of the thermal barrier coating. The layer system according to the invention comprises a specially adapted layer sequence of metallic bonding layer, inner ceramic layer and outer ceramic layer.Type: GrantFiled: March 31, 2006Date of Patent: September 22, 2009Assignee: Siemens AktiengesellschaftInventors: Axel Kaiser, Eckart Schumann, Ramesh Subramanian
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Publication number: 20090233112Abstract: Enclosed is a multilayer zinc oxide (ZnO) varistor having a body portion, internal electrodes extending from both sides to the interior of the body portion respectively, and terminal electrodes disposed at both sides of the body portion. The multilayer zinc oxide is characterized in that: the components of said body portion include at least 90 mole % ZnO, 0.1 to 5.0 mole % antimony oxide functional additives, 0.01 to 1.0 mole % praseodymium oxide functional additives, and 0.01 to 10.0 wt. % glass; the sum amount of these metal oxides is less than 99.95 mole %.Type: ApplicationFiled: March 13, 2008Publication date: September 17, 2009Inventors: Shih-Kwan Liu, Hui-Ming Feng
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Publication number: 20090233071Abstract: A reflective article, such as a solar mirror, includes a highly transparent substrate having a first major surface and a second major surface. At least one reflective coating is formed over at least a portion of one of the surfaces, e.g., the second major surface (or, alternatively, the first major surface). The reflective coating includes at least one metallic layer. An encapsulation structure can be formed over at least a portion of the second reflective coating.Type: ApplicationFiled: December 9, 2008Publication date: September 17, 2009Applicant: PPG INDUSTRIES OHIO, INC.Inventors: Paul A. Medwick, Andrew V. Wagner, Gary J. Marietti
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Publication number: 20090225427Abstract: An optically modified three-dimensional object includes a metal substrate material. At least one dielectric material is on the metal substrate material. A visual property of the substrate material and visible light reflected by the at least one dielectric material create a desired visual appearance of the three-dimensional object.Type: ApplicationFiled: March 10, 2008Publication date: September 10, 2009Inventors: Evelyn Mcgee Deliso, Mei Wen, Jennifer Kruschwitz
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Patent number: 7585568Abstract: The disclosure provides an improved solar selective multilayer coating having higher thermal stability and a process therefor. According to the disclosure, a tandem stack of three layers of TiAlN, TiAlON and Si3N4 is deposited on metal and non-metal substrates using a planar reactive magnetron sputtering process. The first two layers function as the absorber and the third antireflection layer further enhances the coating's absorptance. The solar selective coatings were annealed in air and vacuum to test the thermal stability at different temperatures and durations. The coatings deposited on copper substrates are stable in air up to a temperature of 625° C. and exhibit higher solar selectivity and these coatings also show no change in the absorptance and the emittance values even after vacuum annealing at 600° C. for 3 hours. The solar selective coatings exhibit high hardness, high oxidation resistance, chemical inertness and stable microstructure.Type: GrantFiled: August 22, 2006Date of Patent: September 8, 2009Assignee: Council of Scientific & Industrial ResearchInventors: Harish Chandra Barshilia, Vatika Krishnamurthy William Grips, Karaikudi Sankaranarayana Rajam
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Patent number: 7582359Abstract: A component for use in a combustion turbine (10) is provided that includes a substrate (212) and a microelectromechanical system (MEMS) device (50, 250) affixed to the substrate (212). At least one connector (52) may be deposited in electrical communication with the MEMS device (50, 250) for routing a data signal from the MEMS device (50, 250) to a termination location (59). A barrier coating (216) may be deposited on the substrate (212) wherein the MEMS device (50, 250) is affixed beneath a surface of the barrier coating (216). A plurality of trenches (142) may be formed in the barrier coating (216) at respective different depths below the surface of the barrier coating (216) and a MEMS device (50, 250) deposited within each of the plurality of trenches (142). A monitoring system (30) is provided that may include a processing module (34) programmed for receiving data from the MEMS device (50, 250).Type: GrantFiled: November 8, 2005Date of Patent: September 1, 2009Assignee: Siemens Energy, Inc.Inventors: Stephen M. Sabol, Ramesh Subramanian, Anand A. Kulkarni
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Patent number: 7582356Abstract: The invention relates to a glazing assembly comprising at least one transparent substrate, especially made of glass, provided with a thin-film multilayer comprising, in the following order starting from the substrate, at least: (a) a first dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and chosen from silicon nitrides; (b) a lower stabilizing layer made of a metal or metal alloy X; (c) a functional layer having reflection properties in the infrared and/or in the solar radiation, especially a metal layer; (d) an upper metal blocking layer made of a metal or metal alloy Y; (e) a second dielectric layer comprising a barrier layer acting as a barrier to the diffusion of oxygen and chosen from silicon nitrides; and (f) optionally, a protective oxide layer; in which multilayer the metal or alloy X of the lower stabilizing layer is different from the metal or alloy Y of the upper blocking layer.Type: GrantFiled: June 25, 2004Date of Patent: September 1, 2009Assignee: Saint-Gobain Glass FranceInventors: Jean-Pierre Brochot, Sylvain Belliot
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Patent number: 7579085Abstract: In accordance with an embodiment of the invention, an article is disclosed. The article comprises a gas turbine engine component substrate comprising a silicon material; and an environmental barrier coating overlying the substrate, wherein the environmental barrier coating comprises cerium oxide, and the cerium oxide reduces formation of silicate glass on the substrate upon exposure to corrodant sulfates.Type: GrantFiled: August 19, 2005Date of Patent: August 25, 2009Assignee: General Electric CompanyInventor: Brian Thomas Hazel
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Patent number: 7579087Abstract: A process of coating an article includes the steps of (1) forming a layer of a ceramic based compound on an article; (2) providing a solution containing a metal as a particulate having a diameter of about 10 nanometers to about 1000 nanometers and present in an amount of about 25 percent to about 50 percent by volume of the solution; (3) contacting the ceramic based compound layer with the solution; (4) drying the article; and (5) optionally repeating steps (3) and (4).Type: GrantFiled: January 10, 2006Date of Patent: August 25, 2009Assignee: United Technologies CorporationInventors: Michael J. Maloney, David A. Litton, Kevin W. Schlichting, Melvin Freling, John G. Smeggil, David B. Snow
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Publication number: 20090208680Abstract: A rubber member is provided which includes an aluminum-based inner metal tube (2) (aluminum-based metal component), a film (A) chemically formed on an outer peripheral surface of the inner metal tube (2), an adhesive layer (C) provided on an outer surface of the film (A), and a vibration damping rubber (1) provided on an outer surface of the adhesive layer (C). The film (A) contains manganese oxide and zirconium oxide. In the film (A), manganese from the manganese oxide is present in a content of 10 to 30 mg/m2 on a manganese atom weight basis, and zirconium from the zirconium oxide is present in a content of 5 to 40 mg/m2 on a zirconium atom weight basis. The film (A) is free from deterioration in adhesion to the aluminum-base metal component which may otherwise occur due to heat applied for vulcanization of a rubber material, and is excellent in followability to deformation of the aluminum-based metal component.Type: ApplicationFiled: March 26, 2008Publication date: August 20, 2009Applicant: TOKAI RUBBER INDUSTRIES, LTD.Inventors: Eisuke ASANO, Takanori SUGIURA, Takehiko TAGUCHI, Toyohisa TOHYAMA
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Patent number: 7575811Abstract: A hydrous oxide film is formed on the surface of a superplastic forming aluminum alloy sheet. The superplastic forming aluminum alloy sheet can be formed without applying a lubricant to a die, exhibits excellent releasability, and prevents scratches due to sliding between the die and the sheet.Type: GrantFiled: August 29, 2006Date of Patent: August 18, 2009Assignees: Sumitomo Light Metal Industries, Ltd., Honda Motor Co., Ltd.Inventors: Hidetoshi Uchida, Yasunori Nagai, Takamichi Watanabe, Hitoshi Kazama, Osamu Yokoyama, Kazuya Saito