Coating Consists Of Metal Patents (Class 427/376.7)
-
Patent number: 9034431Abstract: A metallo-organic decomposition process for the preparation of intermetallic powders and films. A liquid mixture containing a first metal precursor and a second metal is heated to a temperature in a first temperature range so as to convert the first metal precursor to a first metal followed by heating to a temperature in a second temperature range so as to form an intermetallic compound by a solid state reaction between the first and second metals. The intermetallic compound can be used as a catalyst in cut filler and/or the filter of a cigarette.Type: GrantFiled: June 19, 2009Date of Patent: May 19, 2015Assignee: Philip Morris USA Inc.Inventors: Sarojini Deevi, Yezdi B. Pithawalla
-
Patent number: 9006296Abstract: According to the present invention, a metal nanoparticle dispersion suitable to multiple layered coating by jetting in the form of fine droplets is prepared by dispersing metal nanoparticles having an average particle size of 1 to 100 nm in a dispersion solvent having a boiling point of 80° C. or higher in such a manner that the volume percentage of the dispersion solvent is selected in the range of 55 to 80% by volume and the fluid viscosity (20° C.) of the dispersion is chosen in the range of 2 mPa·s to 30 mPa·s, and then when the dispersion is discharged in the form of fine droplets by inkjet method or the like, the dispersion is concentrated by evaporation of the dispersion solvent in the droplets in the course of flight, coming to be a viscous dispersion which can be applicable to multi-layered coating.Type: GrantFiled: September 10, 2004Date of Patent: April 14, 2015Assignees: Harima Chemicals, Inc., SIJ Technology, Inc., National Institute of Advanced Industrial Science and TechnologyInventors: Daisuke Itoh, Akihito Izumitani, Noriaki Hata, Yorishige Matsuba, Kazuhiro Murata, Hiroshi Yokoyama
-
Patent number: 8741037Abstract: A palladium first composition is disclosed, including a palladium salt and an unsaturated carboxylic acid, wherein the composition is substantially free of water, and wherein the first composition forms a second composition including stable palladium nanoparticles and a palladium unsaturated carboxylate. The composition permits the use of solution processing methods to form a palladium layer on a wide variety of substrates, including in a pattern to form circuitry or pathways for electronic devices.Type: GrantFiled: February 2, 2012Date of Patent: June 3, 2014Assignee: Xerox CorporationInventor: Yiliang Wu
-
Patent number: 8741036Abstract: A palladium first composition is disclosed, including a palladium salt and an unsaturated organoamine, wherein the composition is substantially free of water, and wherein the first composition forms a second composition including stable palladium nanoparticles and a palladium unsaturated organoamine. The composition permits the use of solution processing methods to form a palladium layer on a wide variety of substrates, including in a pattern to form circuitry or pathways for electronic devices.Type: GrantFiled: February 2, 2012Date of Patent: June 3, 2014Assignee: Xerox CorporationInventor: Yiliang Wu
-
Patent number: 8697196Abstract: A method of forming a metal pattern comprises: (a) providing a substrate; (b) depositing at least one patterned metal layer which includes a metal selected from an inert metal, an inert metal alloy, and combinations thereof; (c) disposing the substrate and the patterned metal layer in a vacuum chamber, vacuuming the vacuum chamber, and introducing a gas into the vacuum chamber; and (d) applying microwave energy to the gas to produce a microwave plasma of the gas within the vacuum chamber so that the patterned metal layer is acted by the microwave plasma and formed into a plurality of spaced apart metal nanoparticles on the substrate.Type: GrantFiled: May 22, 2009Date of Patent: April 15, 2014Inventors: Kuan-Jiuh Lin, Chuen-Yuan Hsu
-
Publication number: 20130157072Abstract: There are provided a sliding member that is enhanced in adhesiveness between the surface of a base member formed of aluminum or aluminum alloy and silver coating with a simple construction, and a method of manufacturing the sliding member. In a piston 1 having a sliding face 22 which slides in a cylinder bore 3, a silver coating layer 21 constituting the sliding face 22 is provided on the outer peripheral surface 11 of a main body 10 formed of aluminum alloy, and the silver coating layer 21 is formed by coating slurry having silver particles 23 dispersed in terpineol on the outer peripheral surface 11 of the main body 10 and heating the coated slurry and the main body 10 to remove terpineol in the slurry and fuse the silver particles 23 with one another.Type: ApplicationFiled: July 26, 2011Publication date: June 20, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Ryotaro Takada, Yoshitaka Tsujii, Mayumi Saruyama
-
Patent number: 8431191Abstract: This invention introduces a method for treating a surface of an electrically conductive object with a refractory metal. In one embodiment, the refractory metal is tantalum and the object is a titanium substrate. A surface layer of mixed tantalum and titanium oxides is created by first heating the object and tantalum chloride in a reaction chamber and subsequently heat treating the object in an oxygen containing environment. The electrically conductive object can in a non-limiting way be DSA solutions (Dimensionally Stable Anodes), fuel cells or connector plates.Type: GrantFiled: July 13, 2007Date of Patent: April 30, 2013Assignee: Tantaline A/SInventors: Bo Gillesberg, Soeren Eriksen
-
Publication number: 20120328902Abstract: A method of fabricating a component and a fabricated component are disclosed. The method includes depositing a material to a component and manipulating the material to form a boundary region and a filler region for desired properties. The component includes the boundary region and the filler region, thereby having the desired properties.Type: ApplicationFiled: June 22, 2011Publication date: December 27, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Yan CUI, Srikanth Chandrudu KOTTILINGAM, Daniel James DORRIETY, Brian Lee TOLLISON, Dechao LIN, Hai Buu SAM
-
Patent number: 8137763Abstract: Processes for preparing catalyst structures, include forming a layer of a catalytic material on a substrate, and separating the layer of the catalytic material into droplet-shaped bodies of the catalytic material adhered to the substrate.Type: GrantFiled: February 7, 2005Date of Patent: March 20, 2012Assignee: Commissariat a l'Energie AtomiqueInventors: Jean Dijon, Francoise Geffraye
-
High-strength quenched formed body with good corrosion resistance and process for producing the same
Patent number: 8133544Abstract: A high-strength quenched formed body containing a layer on the surface of an after-quenching formed-body steel material in which layer Zn is a major component and which layer contains 30% by mass or less of Fe, and which layer is present in an amount of 30 g/m2 or more. A quenched formed body is produced by quenching a zinc-plated steel material which includes a zinc-plated layer containing each of Al and Si having alloying-retarding function and readily-oxidizing function independently or compositely, in an amount of 0.15% by mass or more, after heating it to 800° C. or more and 950° C. or less in an oxidizing atmosphere containing 0.1% by volume or more of oxygen.Type: GrantFiled: September 13, 2010Date of Patent: March 13, 2012Assignees: Aisin Takaoka Co., Ltd., Nippon Steel CorporationInventors: Shinichi Suzuki, Toshimasa Tomokiyo, Shuuji Souma, Katsuji Nakashima, Masashi Ozawa, Kiyohito Kondou -
Publication number: 20120045360Abstract: Disclosed is a Cu—Ga alloy sputtering target which enables the formation of a Cu—Ga sputtering film having excellent uniformity in film component composition (film uniformity), enables the reduction of occurrence of arcing during sputtering, has high strength, and rarely undergoes cracking during sputtering. Specifically disclosed is a Cu—Ga alloy sputtering target which comprises a Cu-based alloy containing Ga, has an average crystal particle diameter of 10 ?m or less, and has a porosity of 0.1% or less.Type: ApplicationFiled: April 14, 2010Publication date: February 23, 2012Applicant: KOBELCO RESEARCH INSTITUTE, INCInventors: Hiromi Matsumura, Akira Nanbu, Masaya Ehira, Shinya Okamoto
-
Patent number: 8043662Abstract: To provide a solder-plating film which has good solder wettability and with which discoloration and twisting of the tin film after heat treatment are prevented. A method and a solution for surface treating a tin film are disclosed. The aqueous solution contains specific compounds and is brought into contact with a tin-plating film before reflow treatment of the tin film.Type: GrantFiled: August 21, 2006Date of Patent: October 25, 2011Assignee: Rohm and Haas Electronic Materials LLCInventor: Masanori Orihashi
-
Patent number: 8039045Abstract: An object of the present invention is to provide a plating method on a glass base plate. The method allows forming a plating film on a base plate composed of a glass material with excellent adhesivity and homogeneity by means of an electroless plating method even to a thickness of 1 ?m or more. Before forming a plating film by a step of electroless plating S6, a surface treatment process is conducted on a surface of the base plate composed of a glass material. The surface treatment process comprises at least a step of glass activation treatment S2 to increase quantity of silanol groups on the surface of the base plate at least by a factor of two using an aqueous solution of diluted acid, a step of silane coupling agent treatment S3, a step of palladium catalyst treatment S4, and a step of palladium bonding treatment S5.Type: GrantFiled: July 27, 2005Date of Patent: October 18, 2011Assignee: Fuji Electric Co., Ltd.Inventors: Youichi Tei, Akira Iso, Kazuhito Higuchi, Hajime Kurihara, Hiroyuki Uwazumi
-
Patent number: 7959711Abstract: A method of manufacturing such gas separation membrane system that includes applying to a surface of a porous substrate a layer of a nanopowder of a gas-selective metal and, thereafter, heat-treating the resultant surface treated porous substrate to yield a heat-treated and surface-treated porous substrate suitable for use as a gas separation membrane system.Type: GrantFiled: October 31, 2007Date of Patent: June 14, 2011Assignee: Shell Oil CompanyInventors: John Charles Saukaitis, Alan Anthony Del Paggio
-
Publication number: 20110070373Abstract: A method for forming an ordered alloy includes: (a) forming a layer of a first metal with a layer thickness of less than 0.3 nm over a substrate; (b) forming a layer of a second metal with a layer thickness of less than 0.3 nm on the layer of the first metal under an elevated temperature sufficient to cause interdiffusion of atoms of the first and second metals between the layer of the first metal and the layer of the second metal so as to form the ordered alloy; and (c) repeating steps (a) and (b) until a predetermined layer thickness of the ordered alloy is achieved.Type: ApplicationFiled: February 5, 2010Publication date: March 24, 2011Applicant: National Taiwan UniversityInventors: Shien-Wen Wang, An-Cheng Sun, Jen-Hwa Hsu, Po-Cheng Kuo, Ching-Ray Chang
-
Publication number: 20110052931Abstract: The present disclosure is directed to cutting tools. The disclosed cutting tools may have a wear resistant coating on a substrate. The substrate may have hard particles cemented in a binder phase. The binder may have a near-surface concentration gradient of at least one platinum group element and/or rhenium. Processes for producing cutting tools are also disclosed.Type: ApplicationFiled: August 25, 2009Publication date: March 3, 2011Applicant: TDY Industries, Inc.Inventors: Craig W. Morton, Dewitt Dortch, John Bost, David J. Wills
-
High-strength quenched formed body with good corrosion resistance and process for producing the same
Patent number: 7892605Abstract: A high-strength quenched formed body containing a layer on the surface of an after-quenching formed-body steel material in which layer Zn is a major component and which layer contains 30% by mass or less of Fe, and which layer is present in an amount of 30 g/m2 or more. A quenched formed body is produced by quenching a zinc-plated steel material which includes a zinc-plated layer containing each of Al and Si having alloying-retarding function and readily-oxidizing function independently or compositely, in an amount of 0.15% by mass or more, after heating it to 800° C. or more and 950° C. or less in an oxidizing atmosphere containing 0.1% by volume or more of oxygen.Type: GrantFiled: July 8, 2005Date of Patent: February 22, 2011Assignees: Aisin Takaoka Co., Ltd., Nippon Steel CorporationInventors: Shinichi Suzuki, Toshimasa Tomokiyo, Shuuji Souma, Katsuji Nakashima, Masashi Ozawa, Kiyohito Kondou -
Patent number: 7799385Abstract: The subject of the present invention is a method of preparation of a monolithic hydrated alumina by the oxidation of aluminium or an aluminium alloy in the presence of a mercury amalgam that contains at least one noble metal, such as silver. This hydrated alumina serves inter alia as base product in methods of preparation of amorphous or crystalline aluminas, or of aluminates, which themselves serve as base products for methods of preparation of composite materials based on oxides, on metals, on carbon products and/or on polymers. Application of the said products obtained by the said methods in many fields, such as catalysis, thermal and acoustic insulation, magnetism, waste storage, and preparation of radioelement transmutation targets.Type: GrantFiled: November 20, 2003Date of Patent: September 21, 2010Assignees: Commissariat a l'Energie Atomique, Centre National de la RechercheInventors: Michel Beauvy, Jean-Louis Vignes, Daniel Michel, Léo Mazerolles, Claude Frappart, Thomas Di Costanzo
-
Patent number: 7721425Abstract: A method of connecting an electronic part, containing: forming an electroless nickel plating coat containing phosphorous on a substrate metal layer which constitutes a connecting terminal of an electronic part; and carrying out connecting to the nickel plating coat through a lead-free solder, wherein a half-width of X-ray diffraction of a (111) plane of Ni crystal in the nickel plating coat is 5 degrees or less.Type: GrantFiled: July 30, 2003Date of Patent: May 25, 2010Assignee: The Furukawa Electric Co., Ltd.Inventor: Junya Hirano
-
Patent number: 7531215Abstract: A method of forming a hydrogen transport membrane to separate hydrogen from a hydrogen containing feed in which a porous ceramic support is formed to support a dense layer of palladium or an alloy of palladium serving as a hydrogen transport material. Isolated deposits of palladium, a palladium alloy or a component of such alloy are produced on a surface of the porous ceramic support that bridge pores within the porous ceramic support without penetrating the pores and without bridging regions of the surface defined between the pores. The isolated deposits of the metal are produced by an electroless plating process.Type: GrantFiled: November 15, 2005Date of Patent: May 12, 2009Assignee: Praxair Technology, Inc.Inventors: Prasad S. Apte, Joseph Michael Schwartz, Shawn W. Callahan
-
Patent number: 7501149Abstract: An electrode and a method for forming the electrode. The electrode comprises: a substrate; and a plurality of metal particles adhering to the substrate. The method comprises steps of: providing a substrate; providing a solution including a solvent and a plurality of metal particles on the substrate; removing the solvent; and making the plurality of metal particles adhere to the substrate.Type: GrantFiled: January 4, 2006Date of Patent: March 10, 2009Assignee: Industrial Technology Research InstituteInventors: Ying-Chiang Hu, Yii-Tay Chiou, Chun-Hsun Chu, Bor-Chen Tsai
-
Patent number: 7479299Abstract: The present invention thus provides an improved method for coating turbine engine components. The method utilizes a cold high velocity gas spray technique to coat turbine blades, compressor blades, impellers, blisks, and other turbine engine components. These methods can be used to coat a variety of surfaces thereon, thus improving the overall durability, reliability and performance of the turbine engine itself. The method includes the deposition of powders of alloys of nickel and aluminum wherein the powders are formed so as to have an amorphous microstructure. Layers of the alloys may be deposited and built up by cold high velocity gas spraying. The coated items displayed improved characteristics such as hardness, strength, and corrosion resistance.Type: GrantFiled: January 26, 2005Date of Patent: January 20, 2009Assignee: Honeywell International Inc.Inventors: Derek Raybould, Murali N. Madhava
-
Publication number: 20080305268Abstract: Novel copper alkoxide compound based ink formulations and their chemical syntheses are disclosed. The method of using the ink formulations to print conducting copper metal lines with standard ink jet printing and curing at <150° C. is also disclosed.Type: ApplicationFiled: May 23, 2008Publication date: December 11, 2008Applicant: AIR PRODUCTS AND CHEMICALS, INC.Inventors: John Anthony Thomas Norman, Melanie K. Perez, Robert Krantz Pinschmidt, JR.
-
Publication number: 20080241412Abstract: A member for a plasma etching device, which comprises a device substrate comprising quartz glass, aluminum, alumite or a combination thereof and, formed on the surface thereof, a coating film of yttrium oxide or YAG having a film thickness of 10 ?m or more and a variation in the thickness of 10% or less, and preferably a surface roughness (Ra) of 1 ?m or less; and a method for manufacturing the member for a plasma etching device, which comprises a step of plasma-spraying yttrium oxide or YAG to the surface of said device substrate or a step of fusing yttrium oxide or YAG with an oxyhydrogen flame, followed by coating the surface with the fused product, or a step of applying a solution containing yttrium, a yttrium compound or YAG on the above surface, followed by heating to fuse the resultant coating, or a combination of the above steps, thereby forming a coating film of yttrium oxide or YAG having a film thickness 10 ?m or more and a variation in the thickness of 10% or less, and preferably a surface roughneType: ApplicationFiled: November 6, 2007Publication date: October 2, 2008Applicant: Shin-Etsu Quartz Products Co., Ltd.Inventors: Kyoichi Inaki, Itsuo Araki
-
Publication number: 20080187670Abstract: A method for making decoration boards includes a step of mixture magnesium chloride and water to form a first mixture; a step of mixing magnesium, the first mixture and water-based foaming agent to form a second mixture which is used as a base; a step of mixing the magnesium and the first mixture to be a third mixture which is coated on the base; a step of molding the base and the top layer in a mold to form patterns in the top layer; a step of drying the molded base and the top layer to combine the molded base and the top layer, the water-based foaming agent being dried by form tiny holes, and a step of coloring the top layer.Type: ApplicationFiled: February 7, 2007Publication date: August 7, 2008Inventor: Chia Hsin Lee
-
Patent number: 7341778Abstract: The present invention relates to a radio wave-transmitting, wavelength-selective plate, which is characterized in that a layer composed of Ag fine particles is formed and that the central portions of the Ag fine particles contain an alloy (Ag alloy) formed of Ag and a metal which forms a homogeneous solid solution with Ag (hereinafter referred to as a homogeneous solid solution metal).Type: GrantFiled: March 12, 2004Date of Patent: March 11, 2008Assignee: Central Glass Company, LimitedInventors: Hiroshi Nakashima, Masaaki Yonekura, Hideo Omoto, Motoh Asakura
-
Patent number: 7128772Abstract: A filter assembly through which a fluid can flow and a method for the production thereof are provided. The filter assembly includes at least one covering layer made of an at least partially porous material with at least one boundary region and includes at least one fiber layer made of a fiber fabric. The at least one covering layer forms a sleeve that encloses the fiber layer so that the fiber layer is permanently disposed inside the at least one covering layer. The filter assembly makes it possible to produce a filter body that can be used, in particular, for cleaning exhaust gases of mobile internal combustion engines.Type: GrantFiled: April 13, 2004Date of Patent: October 31, 2006Assignee: Emitec Gesellschaft fuer Emissionstechnologie mbHInventor: Rolf Brück
-
Patent number: 6964791Abstract: A coated article, a coating for protecting an article, and a method for protecting an article are provided. The article comprises a metallic substrate and a substantially single-phase coating disposed on the substrate, wherein the coating comprises nickel (Ni) and at least about 30 atomic percent aluminum (Al); the coating further comprises a gradient in Al composition, the gradient extending from a first Al concentration level at an outer surface of the coating to a second Al concentration level at an interface between the substantially single-phase coating and the substrate, wherein the first Al concentration level is greater than the second Al concentration level and the second concentration level is at least about 30 atomic percent Al.Type: GrantFiled: December 31, 2003Date of Patent: November 15, 2005Assignee: General Electric CompanyInventors: Ji-Cheng Zhao, Don Mark Lipkin
-
Publication number: 20040253382Abstract: The invention relates to a sputter target and more particularly to a zinc sputter target. The target comprises a target holder having an outer surface and a target material formed on said outer surface. The target material has a relative density higher than 92% of the theoretical density of the metal or metal alloy. Furthermore the invention relates to a process for the manufacturing of a sputter target.Type: ApplicationFiled: March 11, 2004Publication date: December 16, 2004Inventors: Wilmert De Bosscher, Hilde Delrue, Johan Vanderstraeten
-
Patent number: 6761929Abstract: A method is provided for the preparation of metal/porous substrate composite membranes by flowing a solution of metal to be plated over a first surface of a porous substrate and concurrently applying a pressure of gas on a second surface of the porous substrate, such that the porous substrate separates the solution of metal from the gas, and the use of the resulting membrane for the production of highly purified hydrogen gas.Type: GrantFiled: July 22, 2002Date of Patent: July 13, 2004Assignee: Research Triangle InstituteInventor: Ashok S. Damle
-
Publication number: 20040022296Abstract: A laser safety enclosure structure has an outer enclosure made of a formable material with a limited ability to withstand exposure to a laser beam and an inner enclosure composed of a laser beam blocking material capable of indefinitely withstanding exposure to a laser beam of a given wavelength and power level so as to prevent such a laser beam incident on the blocking material from escaping the inner enclosure.Type: ApplicationFiled: July 31, 2002Publication date: February 5, 2004Inventors: Yefim P. Sukhman, Christian J. Risser, Edwin W. Gorham, Stefano J. Noto, Cory W. Worth, David J. Aitchison
-
Patent number: 6651871Abstract: A substrate is coated with a conductive layer, which comprises a conductive layer of bonded ultrafine metal particles formed on the top surface thereof. The ultrafine metal particles have a diameter of 1-20 nm, and the substrate is of a flexible high polymer material. Since the conductive layer is formed by bonded layer of the ultrafine metal particles, an extremely thin layer having high conductivity can be formed. This structure enables the formation of a flexible printed circuit board with high-density interconnects or a transparent conductive film provided with both transparency and conductivity. Conventional vacuum equipments and complicated processes are not necessary for forming the conductive layer on the substrate.Type: GrantFiled: November 18, 2002Date of Patent: November 25, 2003Assignee: Ebara CorporationInventor: Naoaki Ogure
-
Patent number: 6645560Abstract: An environmentally resistant coating (34) for improving the oxidation resistance of a niobium-based refractory metal intermetallic composite (Nb-based RMIC) at high temperatures, the environmentally resistant coating (34) comprising silicon, titanium, chromium, and niobium. The invention includes a turbine system (10) having turbine components (11) comprising at least one Nb-based RMIC, the environmentally resistant coating (34) disposed on a surface (33) of the Nb-based RMIC, and a thermal barrier coating (42) disposed on an outer surface (40) of the environmentally resistant coating (34). Methods of making a turbine component (11) having the environmentally resistant coating (34) and coating a Nb-based RMIC substrate (32) with the environmentally resistant coating (34) are also disclosed.Type: GrantFiled: December 10, 2002Date of Patent: November 11, 2003Assignee: General Electric CompanyInventors: Ji-Cheng Zhao, Melvin Robert Jackson, Bernard Patrick Bewlay
-
Patent number: 6607787Abstract: A process for producing a coating on a refractory structural member, in which a noble metal alloy is applied as a coating material to the refractory structural member. The noble metal alloy contains, among other constituents, an oxidizable substance, which includes boron and/or phosphorus and/or antimony and/or arsenic. The refractory structural member and the coating are heated at least once in an oxygen-containing atmosphere to a temperature T that is greater than or equal to the liquidus temperature TL of the noble metal alloy. The oxidizable substance is oxidized during this heating process, and the oxide that has formed is at least partially vaporized. The temperature T is maintained until the proportion of oxidizable substance in the coating is <0.1 atomic percent, and the coated refractory structural member is then cooled.Type: GrantFiled: August 7, 2001Date of Patent: August 19, 2003Assignee: W. C. Heraeus GmbH & Co. KGInventors: Wulf Kock, Frank Krüger, David Lupton, Harald Manhardt, Jürgen Merker
-
Patent number: 6607804Abstract: A filter having two zones, the first zone having a low electrical conductivity and the second zone having a high electrical conductivity at electrode attachment zones due to infiltration of metal within the second zone.Type: GrantFiled: March 1, 1999Date of Patent: August 19, 2003Assignee: Thomas Josef Heimbach Gesellschaft mit beschrankter Haftung & Co.Inventors: Walter Best, Oliver Benthaus, Wolfgang Schäfer, Uwe Schumacher
-
Patent number: 6585878Abstract: A thermal barrier coating for nickel based superalloy articles such as turbine engine vanes and blades that are exposed to high temperature gas is disclosed. The coating includes a columnar grained ceramic layer applied to a platinum modified Ni3Al gamma prime phase bond coat having a high purity alumina scale. The preferred composition of the bond coat is 5 to 16% by weight of aluminum, 5 to 25% by weight of platinum with the balance, at least 50% by weight, nickel. A method for making the bond coat is also disclosed.Type: GrantFiled: August 7, 2002Date of Patent: July 1, 2003Assignee: Honeywell International, Inc.Inventors: Thomas E. Strangman, Derek Raybould
-
Patent number: 6579793Abstract: A fabrication process provides for achieving high adhesion of CVD copper thin films on metal nitride substrates, and in particular, on substrates having an outermost TaN layer. The method comprises introducing a certain amount of water vapor to the initial copper thin film deposition stage and reducing the amount of fluorine in the interface of the copper and metal nitride substrate. These two process steps result in a copper thin film having improved adhesion to metal nitride substrates, including TaN substrates.Type: GrantFiled: March 27, 2001Date of Patent: June 17, 2003Assignee: Sharp Laboratories of America, Inc.Inventors: Wei-Wei Zhuang, Wei Pan, David R. Evans, Sheng Teng Hsu
-
Patent number: 6528123Abstract: This invention relates to a method for preparing the surface of a ceramic component that enables direct brazing using a non-active braze alloy. The present invention also relates to a method for directly brazing a ceramic component to a ceramic or metal member using this method of surface preparation, and to articles produced by using this brazing method. The ceramic can be high purity alumina. The method comprises applying a first coating of a silicon-bearing oxide material (e.g. silicon dioxide or mullite (3Al2O3.2SiO2) to the ceramic. Next, a thin coating of active metal (e.g. Ti or V) is applied. Finally, a thicker coating of a non-active metal (e.g. Au or Cu) is applied. The coatings can be applied by physical vapor deposition (PVD). Alternatively, the active and non-active metals can be co-deposited (e.g. by sputtering a target made of mullite).Type: GrantFiled: June 28, 2000Date of Patent: March 4, 2003Assignee: Sandia CorporationInventors: Charles H. Cadden, F. Michael Hosking
-
Patent number: 6511630Abstract: A method for coating a surface of a substrate, includes providing a substrate having a surface, and coating the surface with a foam suspension containing a powder suspended in a foam to form a coating on the surface. The substrate is then heat treated to densify the coating along the surface.Type: GrantFiled: October 4, 1999Date of Patent: January 28, 2003Assignee: General Electric CompanyInventors: Thomas Joseph Cartier, D. Sangeeta, Dong-Sil Park, Theodore Robert Grossman
-
Publication number: 20020121441Abstract: An automotive lambda oxygen sensor is formed by electroless plating of a thin, catalytically active, conductive electrode uniformly on the outer surface of a zirconia thimble. The process includes forming a pristine zirconia solid electrolyte thimble and drilling out a cylindrical cavity in it. A porous outer surface suitable for producing crystallization sites is formed by dipping the unfired thimble in a zirconia slurry containing spray-dried microspheres and firing the coated thimble to densify the thimble and the microspheres and to produce cavities on the surface of the thimble. An inner platinum electrode is formed by conventional conductive ink painting on the axial cavity of the sensor, and the sensor is again fired. The surface is activated by immersion in an acetone chloroplatinic acid bath to form multiple crystallization points, heat treated, then plated in an electroless platinum bath to a desired thickness.Type: ApplicationFiled: November 9, 2001Publication date: September 5, 2002Inventors: Mary R. Reidmeyer, Matthew J. Donelon, Robert F. Killion
-
Patent number: 6436479Abstract: Disclosed is a method of forming a nickel metal thin film, comprising the steps of coating a substrate with a solution for forming a nickel metal thin film, the solution being formed of an alcohol solution containing nickel ions and a reducible chelate type ligand having a hydrazone unit so as to form a gel film, and subjecting the resultant gel film to a heat treatment under an inert gas atmosphere.Type: GrantFiled: December 13, 2000Date of Patent: August 20, 2002Assignee: President of Gifu UniversityInventors: Yasutaka Takahashi, Yutaka Ohya, Takayuki Ban
-
Patent number: 6413589Abstract: A method of coating a ceramic and bonding ceramic onto a substrate for practical uses over 630° C. includes forming a brazed bonding layer at a contact area between the ceramic and the substrate by a fluidic reaction and causing the bonding layer to wet both the ceramic and substrate with a wetting angle of 0-5° to thereby coat and bond the ceramic onto bond the substrate over the entire contact area with a continuous, essentially 100% dense bonding layer. The bonding layer is so free of bonding defects that the resulting bonded product can withstand repeated thermal shocks by quenching in 0° ice water from a temperature in the range of 630-980° C.Type: GrantFiled: June 8, 1995Date of Patent: July 2, 2002Inventor: Chou H. Li
-
Patent number: 6315880Abstract: An automotive lambda oxygen sensor is formed by electroless plating of a thin, catalytically active, conductive electrode uniformly on the outer surface of a zirconia thimble. The process includes forming a pristine zirconia solid electrolyte thimble and drilling out a cylindrical cavity in it. A porous outer surface suitable for producing crystallization sites is formed by dipping the unfired thimble in a zirconia slurry containing spray-dried microspheres and firing the coated thimble to densify the thimble and the microspheres and to produce cavities on the surface of the thimble. An inner platinum electrode is formed by conventional conductive ink painting on the axial cavity of the sensor, and the sensor is again fired. The surface is activated by immersion in an acetone chloroplatinic acid bath to form multiple crystallization points, heat treated, then plated in an electroless platinum bath to a desired thickness.Type: GrantFiled: October 16, 1997Date of Patent: November 13, 2001Inventors: Mary R. Reidmeyer, Matthew J. Donelon, Robert F. Killion
-
Patent number: 6309705Abstract: A high reflectance-low stress Mo—Si multilayer reflective coating particularly useful for the extreme ultraviolet (EUV) wavelength region. While the multilayer reflective coating has particular application for EUV lithography, it has numerous other applications where high reflectance and low stress multilayer coatings are utilized. Multilayer coatings having high near-normal incidence reflectance (R≧65%) and low residual stress (≦100 MPa) have been produced using thermal and non-thermal approaches. The thermal approach involves heating the multilayer coating to a given temperature for a given time after deposition in order to induce structural changes in the multilayer coating that will have an overall “relaxation” effect without reducing the reflectance significantly.Type: GrantFiled: January 13, 2000Date of Patent: October 30, 2001Assignee: The Regents of the University of CaliforniaInventors: Claude Montcalm, Paul B. Mirkarimi
-
Patent number: 6254926Abstract: An oxygen sensor element includes a solid electrolyte having cavities on a surface thereof and an electrode formed on the surface of the solid electrolyte. In a method of producing the oxygen sensor element, a solution containing a noble metal compound for nucleus formation is first applied to an electrode forming portion of the solid electrolyte to form a coating film. Then, the coating film is heat-treated to form a nucleus forming portion where noble metal nuclei are deposited. Subsequently, metal plating is applied to the nucleus forming portion to form a plating film deeply entering the cavities. Thereafter, the plating film is burned to form the electrode deeply entering the cavities.Type: GrantFiled: July 26, 1999Date of Patent: July 3, 2001Assignee: Denso CorporationInventors: Toru Katafuchi, Kiyomi Kobayashi, Naoto Miwa, Hiromi Sano, Toshitaka Saito
-
Patent number: 6203847Abstract: A method for restoring or enhancing an environmental resistant coating of a coating total thickness within a coating design thickness range on a metal substrate of an article includes the application of a restoring or enhancing metal to at least one discrete local surface area. Then at least the discrete local surface area is coated with an environmental resistant coating. For use of the method to restore a coating on an article which has experienced service operation and the discrete surface area includes an undesirable amount of oxidation/corrosion products, the oxidation/corrosion products first are removed from an outer portion of the coating while retaining a coating present at the discrete surface areas and retaining the entire coating on surface areas adjacent the discrete surface areas. Then the restoration metal is applied.Type: GrantFiled: December 22, 1998Date of Patent: March 20, 2001Assignee: General Electric CompanyInventors: Jeffrey A. Conner, Joseph D. Rigney, David J. Wortman, Janet E. Gaewsky
-
Patent number: 6197366Abstract: According to the present invention, a metal paste comprising an organo- or inorganometallic compound of a metal that is a solid at ordinary temperature and belongs to group 3 through 15 of the periodic table, and an amino compound as medium, and which exhibits coatable viscosity, is provided. By using the metal paste, metal films of various types of metals or alloys can be formed inexpensively with an industrially simple process and apparatus even on various types of general-purpose, inexpensive substrates having a low softening point such as a glass, plastic, film and so forth, in addition to a ceramic substrate. In particular, the metal film can be formed easily in an ordinary pressure onto a printed wiring board or a substrate to be coated with a metal, which has a poor heat resistance.Type: GrantFiled: November 5, 1999Date of Patent: March 6, 2001Assignee: Takamatsu Research LaboratoryInventor: Hideki Takamatsu