Metal Particles Patents (Class 427/191)
  • Patent number: 10566095
    Abstract: A method is provided for coating the substrate of a component, such as a zirconium alloy cladding tube, for use in a water cooled nuclear reactor under normal operating conditions and under high temperature oxidation conditions. The method includes heating a pressurized carrier gas to a temperature between 200° C. and 1200° C., adding chromium or chromium-based alloy particles having an average diameter of 20 microns or less to the heated carrier gas, and spraying the carrier gas and particles onto the substrate at a velocity, preferably from 800 to 4000 ft./sec. (about 243.84 to 1219.20 meters/sec.), to form a chromium and/or chromium-based alloy coating on the substrate to a desired thickness.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: February 18, 2020
    Assignee: Westinghouse Electric Company LLC
    Inventors: Edward J. Lahoda, Peng Xu, Zeses Karoutas, Sumit Ray, Kumar Sridharan, Benjamin Maier, Greg Johnson
  • Patent number: 10300445
    Abstract: A reactive hopper assembly for feeding a low pressure cold spray applicator for applying powder coatings is disclosed. A powder feed cartridge provides powder feed to a reaction chamber. An impeller housing is interconnected with the reaction chamber for receiving powder feed from the reaction chamber for metering powder feed received from the reaction chamber. A hopper vessel receives metered powder feed from the impeller housing for providing powder to the low pressure cold spray applicator. The reaction chamber is fluidly connected to a source of a reactive gas for chemically modifying the powder feed for in situ reducing surface oxidation of the powder feed.
    Type: Grant
    Filed: September 7, 2017
    Date of Patent: May 28, 2019
    Assignee: Tessonics, Inc.
    Inventors: Roman Gr. Maev, Volf Leshchynsky, Emil Strumban, Dmitry Dzhurinskiy, Zygmunt Baran
  • Patent number: 9969653
    Abstract: A hard-clad coating composition for hardfacing is described. Also described is a weld hardfacing method for applying a coating composition to a base metal, and an apparatus for introducing the coating composition to the weld process.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: May 15, 2018
    Assignee: J & S WORLDWIDE FABRICATORS, LTD.
    Inventors: James B. Scott, Sherilyn K. Godkin
  • Patent number: 9371927
    Abstract: An inlet port provides a fluid entrance to a body. A chamber has an inner surface. An outlet port is in fluid communication with the chamber and provides a fluid exit from the body. The piston is moveable within the chamber between a first set position, in which the inlet port is not in fluid communication with the outlet port, and a second open position, in which the inlet port is in fluid communication with the outlet port through the chamber. A seal guard is slidably disposed within the chamber. The seal guard is moveable between a first seal-guard position and a second seal-guard position in which the seal guard shields the seal. The seal guard is in the first seal-guard position when the piston is in its first set position and in the second seal-guard position when the piston is in its second open position.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: June 21, 2016
    Assignee: Marathon Valve LLC
    Inventor: Daniel Greenfield Lattimer
  • Patent number: 9346240
    Abstract: Disclosed are an open-porous metal foam and a method for manufacturing the same. An open-porous metal foam according to an exemplary embodiment of the present invention is made of an iron-based alloy including 15 wt % or more of chrome and 5 wt % or more of aluminum. The open-porous metal foam is a semi-product that is formed of iron or the iron-based alloy that does not include chrome and aluminum or includes a smaller amount of chrome and aluminum in the powder when manufacturing, and the surface and the open pore thereof are uniformly coated with the powder of the iron-chrome-aluminum alloy and the organic binding agent. When heat treatment is performed under a reduction atmosphere, sintering is performed.
    Type: Grant
    Filed: August 28, 2013
    Date of Patent: May 24, 2016
    Assignees: ALANTUM, FRAUNHOFER GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Gunnar Walther, Burghardt Klöden, Juliane Böhm, Tilo Büttner, Thomas Weissgärber, Bernd Kieback, Arne Boden, Hans-Dietrich Böhm, Hyuntae Kim, James Choi, Myungjoon Jang, Alexander Böhm, Stefan Fröhlich, Winfried Dölling
  • Publication number: 20150136303
    Abstract: The present invention provides a method for manufacturing a compound heat sink. Firstly, providing an artificial graphite sheet, and then performing a surface treatment process on the artificial graphite sheet to form a rugged structure on the artificial graphite sheet as a first embedding structure. Finally, forming a metal layer covering the rugged structure, and performing a pressing bonding process to form a second embedding structure corresponding to the first embedding structure to bond the metal layer and the artificial graphite sheet. Namely, the artificial graphite sheet and the metal layer are bonded by the first and second embedding structures for increasing the bonding strength between two heterogeneous materials as well as reducing the interfacial heat resistance. Thereby, the stability of heat dissipation performance can be improved, and a volumetric heat capacity of the compound heat sink from 1.1 to 3.5 J/(cm3·K) is provided.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Inventors: HUNG-YUAN LI, TSUNG-CHEN CHIANG
  • Patent number: 9006296
    Abstract: 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: Grant
    Filed: September 10, 2004
    Date of Patent: April 14, 2015
    Assignees: Harima Chemicals, Inc., SIJ Technology, Inc., National Institute of Advanced Industrial Science and Technology
    Inventors: Daisuke Itoh, Akihito Izumitani, Noriaki Hata, Yorishige Matsuba, Kazuhiro Murata, Hiroshi Yokoyama
  • Patent number: 8999457
    Abstract: Methods for making an environmental barrier coating using a sintering aid involving: applying a bond coat layer to the ceramic component; combining at least water and a primary transition material selected from a rare earth disilicate or a doped rare earth disilicate to produce a transition layer slurry; applying at least the transition layer slurry, and optionally an outer layer slurry and/or compliant layer slurry to the component; and sintering the component to produce the environmental barrier coating. The sintering step causes a reaction between a slurry sintering aid and constituents of at least one of the transition, outer and compliant layers to form a secondary material and reduce porosity in the coating.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: April 7, 2015
    Assignee: General Electric Company
    Inventors: Glen Harold Kirby, Brett Allen Boutwell, Jessica L. Subit
  • Patent number: 8993048
    Abstract: A method generates an abrasive wear-resistant layer on a substrate. The layer is formed of particles of a ductile material, in particular Zn, wherein the parameters of the cold spraying process are set such that a comparatively loose laminate having pores is formed by the spray particles. The laminate advantageously and surprisingly exhibits high resistance to abrasive wear (for example by a particle) because the layer can avoid the attack by the particle by plastic deformation and closure of the pores, whereby abrasive removal of the layer is advantageously low. The cold gas-sprayed layer is used as a protective layer against abrasive wear.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: March 31, 2015
    Assignee: Siemens Aktiengesellschaft
    Inventors: Axel Arndt, Christian Doye, Oliver Stier, Raymond Ullrich
  • Patent number: 8973523
    Abstract: The invention relates to a device for creating and conveying a gas-powder mixture having a powder receiving space (3) that is connected to a vacuum creation device via a vacuum line (19) that discharges to the upper region of said powder receiving space. A reduced pressure in comparison to a mixing chamber (7) can be created within the powder receiving space (3), and thus a gas flow directed against the powder flow direction within a powder supply channel (6).
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: March 10, 2015
    Assignee: Oerlikon Metco AG
    Inventors: Walter Kokott, Helmut Paul Höll, Peter Richter, Jr., Peter Richter, Sr.
  • Patent number: 8962154
    Abstract: A pipe or pipe fitting for use in harsh environment such as in petroleum refinery processes for cracking petroleum feedstocks, the pipe or pipe fitting comprising a 0.25 to 2.5 mm thick Co-based metallic coating on an internal surface of the pipe body, the coating having a hypereutectic microstructure characterized by carbides in a cobalt matrix and an average carbide grain size of less than 50 microns, and the Co-based metallic composition overlays the pipe internal surface at an interface which is free of heat-affected zone and which has a diffusion zone which is less than 0.002 inches thick.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: February 24, 2015
    Assignee: Kennametal Inc.
    Inventors: Matthew Yao, Louw DeJong, Danie DeWet
  • Patent number: 8911823
    Abstract: Nanoparticle inks and powders are sintered using an applied mechanical energy, such as uniaxial pressure, hydrostatic pressure, and ultrasonic energy, which may also include applying a sheer force to the inks or powders in order to make the resultant film or line conductive.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: December 16, 2014
    Assignee: PEN Inc.
    Inventors: Yunjun Li, Samuel Kim, Igor Pavlovsky, Zvi Yaniv, Mohshi Yang
  • Patent number: 8906450
    Abstract: A powder spray nozzle includes an inlet portion having an inlet diameter and an inlet length and an outlet portion having outlet diameter and an outlet length. The nozzle also includes an interface region between the inlet portion and the outlet portion having an interface diameter. A ratio of the inlet diameter to the inlet length is in a range of about 0.15 to 0.5.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: December 9, 2014
    Assignee: Hanergy Holding Group Ltd.
    Inventors: Edward J. McInerney, Johannes Vlcek
  • Publication number: 20140339093
    Abstract: The described embodiments relate generally to methods to enhance cosmetic surfaces of friction stir processed parts. More specifically a method for applying cold spray over a weld line generated by the friction stir processing is disclosed. Methods are also disclosed for blending the cold spray applied over the weld line in with a cosmetic surface portion of friction stir processed parts. In some embodiments cold spray can be used to on its own to create a cosmetic join between various parts.
    Type: Application
    Filed: May 14, 2014
    Publication date: November 20, 2014
    Applicant: Apple Inc.
    Inventors: Simon Regis Louis Lancaster-Larocque, Collin D. Chan, Kenneth A. Ross
  • Patent number: 8877283
    Abstract: The present invention relates to a preparation method for porous hydroxyapatite coatings. In particular, it is a method of using suspension plasma spraying to prepare porous hydroxyapatite coatings, which belongs to the technical field of biomedical material preparations. The present invention added a pore-forming agent into the hydroxyapatite suspension with a solid content of 16%-45%. After full stirring, the feedstock materials for plasma spraying were transferred into the injection system, and injected into the high temperature area of the central plasma flame. Then, the feedstock materials made the heat exchange with the high plasma flame of plasma spraying gun. Then the sprayed raw materials were subjected to breakup and refinement of the droplets, solvent evaporation, the decomposition and gasification of the pore-forming agent and melting of feedstock materials. Finally, the porous hydroxyapatite coatings are directly deposited onto the substrate surfaces of the biomedical materials.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: November 4, 2014
    Assignee: Si Chuan University
    Inventors: Fang Wu, Yi Huang, Lei Song, Xiaoguang Liu, Yanfeng Xiao, Jiamin Feng, Jiyong Chen
  • Patent number: 8871294
    Abstract: One exemplary embodiment may include a method comprising: depositing a solution comprising an organometallic compound on a substrate, drying the solution to provide a film of the organometallic compound and at least partially oxidizing an organic component of the organometallic compound to provide nanoparticles including metal oxides on the substrate which would have multiuse industrial applications.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: October 28, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Mahmoud H. Abd Elhamid, Youssef M. Mikhail, Gayatri Vyas Dadheech, Curtis A. Wong
  • Patent number: 8852689
    Abstract: Particles are embedded in a substrate by applying to at least a portion of the substrate a fluid and a population of particles, such that the substrate is softened to at least a degree that particles are at least partially embedded in the softened portion of the substrate. The softened portion of the substrate is hardened so as to securely embed the particles in the substrate.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: October 7, 2014
    Assignee: Innova Dynamics, Inc.
    Inventors: Arjun Daniel Srinivas, Calvin Peng, Alexander Chow Mittal, Priyanka Agarwal
  • Patent number: 8852667
    Abstract: The present invention belongs to the field of biomedical material, and is particularly related to a method of preparing bioactive glass coatings by liquid precursor thermal spray. The objective of the present invention is to overcome the shortcomings of the air plasma spraying where the powder feedstock preparation is complicated and time-consuming, and sol-gel or other wet chemistry method where the synthesized coating generally has thin coating thickness and with low production efficiency. Therefore, a new method is provided for preparation of bioactive glass coatings. In this method, organic and inorganic raw materials were first weighed in accordance with the chemical composition of bioactive glasses, and sol or suspension was prepared; then the sol or suspension was used as the feedstock for thermal spray, and was deposited on the biomedical materials substrate, at high temperature to form the bioactive glass coating.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: October 7, 2014
    Assignee: Si Chuan University
    Inventors: Fang Wu, Yanfeng Xiao, Lei Song, Xiaoguang Liu, Yi Huang, Tao Huang, Jiamin Feng
  • Patent number: 8846141
    Abstract: Methods and devices are provided for high-throughput printing of semiconductor precursor layer from microflake particles. In one embodiment, the method comprises of transforming non-planar or planar precursor materials in an appropriate vehicle under the appropriate conditions to create dispersions of planar particles with stoichiometric ratios of elements equal to that of the feedstock or precursor materials, even after settling. In particular, planar particles disperse more easily, form much denser coatings (or form coatings with more interparticle contact area), and anneal into fused, dense films at a lower temperature and/or time than their counterparts made from spherical nanoparticles. These planar particles may be microflakes that have a high aspect ratio. The resulting dense film formed from microflakes are particularly useful in forming photovoltaic devices.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: September 30, 2014
    Assignee: aeris CAPITAL Sustainable IP Ltd.
    Inventors: Matthew R. Robinson, Jeroen K. J. Van Duren, Craig Leidholm, Brian M. Sager
  • Patent number: 8828312
    Abstract: Forming a wear- and corrosion-resistant coating on an industrial component such as a chemical processing or nuclear power valve component by applying a cobalt-based dilution buffer layer to an iron-based substrate by slurry coating, and then applying by welding a cobalt-based build-up layer over the cobalt-based dilution buffer layer. An industrial component having a dilution buffer layer and a welding build-up layer thereover.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: September 9, 2014
    Assignee: Kennametal Inc.
    Inventors: Matthew Yao, Rachel Collier, Danie DeWet
  • Patent number: 8802191
    Abstract: Disclosed is a process for the reprocessing or production of a sputter target or an X-ray anode wherein a gas flow forms a gas/powder mixture with a powder of a material chosen from the group consisting of niobium, tantalum, tungsten, molybdenum, titanium, zirconium, mixtures of two or more thereof and alloys thereof with at least two thereof or with other metals, the powder has a particle size of 0.5 to 150 ?m, wherein a supersonic speed is imparted to the gas flow and the jet of supersonic speed is directed on to the surface of the object to be reprocessed or produced.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 12, 2014
    Assignee: H. C. Starck GmbH
    Inventors: Stefan Zimmermann, Uwe Papp, Heinrich Kreye, Tobias Schmidt
  • Patent number: 8747946
    Abstract: There is provided a pre-treatment method for improving an adhesion of a thin film which includes: preparing a base metal including a single metal or alloy; preparing a coating powder including powder of one or more single metals or an alloy thereof; forming a porous metal coating layer on a surface of the base metal, on which a thin film is to be deposited, by cold-spraying the coating powder and a process gas to the surface of the base metal; and depositing the thin film on the coating layer, wherein the thin film includes metal.
    Type: Grant
    Filed: July 8, 2011
    Date of Patent: June 10, 2014
    Assignee: Ajou University Industry Cooperation Foundation
    Inventors: Kyung Hyun Ko, Hyuk Jun Lee
  • Patent number: 8734896
    Abstract: A joined sputtering target comprising a sputtering material is formed by disposing two discrete sputtering-target tiles comprising the sputtering material proximate each other, thereby forming an interface between the tiles, the interface comprising at least one of an interlocking joint therein or a recess in a top surface thereof, and spray-depositing a spray material over at least a portion of the interface, thereby joining the tiles to form the joined sputtering target.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: May 27, 2014
    Assignee: H.C. Starck Inc.
    Inventors: Scott Jeffrey Volchko, Stefan Zimmermann, Steven A. Miller, Michael Thomas Stawovy
  • Patent number: 8728572
    Abstract: A device and method relating to a layer system is provided. A substrate with a multi-layer system disposed on the substrate is provided. The multi-layer system has at least one upper layer and at least one layer. A contact element is applied through cold-gas spraying in such a manner that the contact element penetrates the upper layer and contacts the lower layer. The upper layer of the multi-layer system has a scratch-resistant top-layer.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: May 20, 2014
    Assignees: Interpane Entwicklungs-und Beratungsgesellschaft mbH, GFE Fremat GmbH
    Inventors: Harry Berek, Alexander Paul, Steffen Schmidt, Lothar Herlitze, Hansjoerg Weis, Karl Haeuser
  • Patent number: 8720062
    Abstract: A molding method for a thin-profile composite capillary structure includes the steps of preparing a metal grid and metal powder separately; attaching a liquid medium onto the metal grid by means of spraying or brushing or steeping; attaching uniformly the metal powder onto the grid with the liquid medium; and fixing the metal powder onto the surface of the grid by means of sintering, such that a sintered powder layer is formed onto the surface of the grid. The structure includes a metal grid, which is of planar grid pattern made of woven metal wires. A sintered powder layer is sintered onto a lateral surface of the metal grid from the metal powder. The thickness of the sintered powder layer is 0.1 mm-0.7 mm. The total thickness of the thin-profile composite capillary structure is 0.2 mm-0.8 mm, thus presenting flexibility. The thin-profile composite capillary structure is particularly suitable for a heat pipe.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: May 13, 2014
    Assignee: Forcecon Technology Co., Ltd.
    Inventors: Sin-Wei He, Jhong-Yan Chang, Yen-Chen Chen
  • Patent number: 8709335
    Abstract: A method of making a sputtering target includes providing a backing structure, and forming a copper indium gallium sputtering target material on the backing structure by cold spraying. The step of cold spraying includes spraying a powder comprising copper, indium and gallium in a process gas stream, and at least one of an average particle size of the powder is at least 35 ?m, a velocity of the process gas stream is at least 150 m/s, or a process gas pressure is 20 bar or less.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: April 29, 2014
    Assignee: Hanergy Holding Group Ltd.
    Inventors: Johannes Vlcek, Daniel R. Juliano
  • Patent number: 8703234
    Abstract: Methods of coating a magnesium substrate are provided along with coated magnesium substrates. A low melting point material is cold sprayed onto a region of the magnesium substrate. A corrosion resistant material or a zinc material is cold sprayed over at least a portion of the low melting point material to form a coated magnesium substrate. The coated magnesium substrate is then heated.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: April 22, 2014
    Assignee: GM Global Technology Operations LLC
    Inventor: Guangling Song
  • Patent number: 8703233
    Abstract: In various embodiments, a joined sputtering target is formed by filling at least a portion of a gap between two discrete sputtering-target tiles with a gap-fill material, spray-depositing a spray material to form a partial joint, removing at least a portion of the gap-fill material, and, thereafter, spray-depositing the spray material to join the tiles.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: April 22, 2014
    Assignee: H.C. Starck Inc.
    Inventors: Steven A. Miller, Francois-Charles Dary, Mark Gaydos, Gary Rozak
  • Patent number: 8697184
    Abstract: The present invention relates to a method for producing a coating on a gas turbine component, in which particles at least of parts of a material to be applied as coating are accelerated by means of kinetic gas dynamic cold spraying in a spray jet onto the surface (2) of the component (1) to be coated, wherein a reactive gas is fed into the spray jet (6), so that the reactive gas reacts at least partially with the particles of the coating material when the particles impinge on the surface (2) to be coated and/or wherein the deposited layer (9) is heated locally and/or over a large area and impacted with a reactive gas, as well as a gas turbine component produced in this way.
    Type: Grant
    Filed: July 12, 2010
    Date of Patent: April 15, 2014
    Assignee: MTU Aero Engines GmbH
    Inventors: Manuel Hertter, Andreas Jakimov, Stefan Schneiderbanger
  • Patent number: 8691333
    Abstract: A method is provided for manufacturing an engine component. The method includes providing a structural bridge device on a base block; forming a component portion on the structural bridge device with an additive manufacturing technique; removing the component portion from the base block and the structural bridge device; and finishing the component portion to form the engine component.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: April 8, 2014
    Assignee: Honeywell International Inc.
    Inventors: Donald G. Godfrey, Daniel Ryan, Mark C. Morris, Vincent Chung
  • Patent number: 8632860
    Abstract: Disclosed is a method for preparing a multifunctional technical textile that exhibits multiple functional properties comprising flame or fire-retardancy, EMI shielding, anti-odorous property, UV protection, oil-repellency, anti-soiling property, antimicrobial property, anti-creasing property, water-proof, and antistatic property. The method comprises washing a textile product in a water solution comprising water mixed with a predetermined quantity of non-ionic detergent, storing the textile product at a predetermined temperature and a predetermined relative humidity, and subjecting the textile product to plasma treatment by placing the same in a plasma stream within a reaction chamber.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: January 21, 2014
    Inventors: Sheila Shahidi, Mahmood Ghoranneviss
  • Publication number: 20140004260
    Abstract: A deposition method includes placing fine particles in an airtight container, the fine particles being obtained by forming a coating layer on a surface of a matrix, the coating layer being more liable to be charged than the matrix with respect to a material of a conveying path, generating an aerosol of the fine particles by introducing a career gas into the airtight container, transporting the aerosol via a transfer tubing to a deposition chamber which is maintained at a pressure lower than that in the airtight container while charging the fine particles by friction with the inner surface of the transfer tubing, the transfer tubing being connected to the airtight container and having a nozzle at the tip, and depositing the charged fine particles on a substrate placed in the deposition chamber by spraying the aerosol from the nozzle.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 2, 2014
    Inventors: Eiji Fuchita, Yasutoshi Iriyama
  • Patent number: 8609187
    Abstract: The disclosure provides a method for the production of composite particles utilizing a mechano chemical bonding process following by high energy ball milling on a powder mixture comprised of coating particles, first host particles, and second host particles. The composite particles formed have a grain size of less than one micron with grains generally characterized by a uniformly dispersed coating material and a mix of first material and second material intermetallics. The method disclosed is particularly useful for the fabrication of oxide dispersion strengthened coatings, for example using a powder mixture comprised of Y2O3, Cr, Ni, and Al. This particular powder mixture may be subjected to the MCB process for a period generally less than one hour following by high energy ball milling for a period as short as 2 hours. After application by cold spraying, the composite particles may be heat treated to generate an oxide-dispersion strengthened coating.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: December 17, 2013
    Assignee: U.S. Department of Energy
    Inventors: Bruce S. Kang, Minking K. Chyu, Mary Anne Alvin, Brian M. Gleeson
  • Patent number: 8568826
    Abstract: A method for brazing a component in a power generation system, the brazed power generation system component, and braze are provided to improve repairing power generation systems. The method includes providing the component having a feature in a surface of the component and coating a particulate material with a filler material to obtain a coated particulate material. The method includes preparing the feature to obtain a treatment area and filling the treatment area in the surface of the component with the coated particulate material. The method includes heating the treatment area and surrounding component to a brazing temperature and applying oxidation protection to the treatment area. After the brazing temperature is obtained, the method includes brazing the treatment area and the screen and cooling the component to obtain a brazed joint.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: October 29, 2013
    Assignee: General Electric Company
    Inventors: Junyoung Park, Jason Robert Parolini, Ibrahim Ucok, Brian Lee Tollison, Stephen Walcott, Jon Conrad Schaeffer
  • Publication number: 20130280547
    Abstract: A method for manufacturing a component having increased thermal conductivity through layer-by-layer construction. At least one section of the component is constructed by applying a layer section having predetermined dimensions of a composite material of a metal and/or a metal alloy and particles of a highly heat-conducting material, including diamond and/or cubic boron nitride, in a predetermined area on a base layer by melting the metal or the metal alloy a heat source, in such a way that the metal and/or metal alloy form(s) within the predetermined dimensions a cohesive matrix, in which particles of the highly heat-conducting material are embedded, and then cooling.
    Type: Application
    Filed: June 20, 2013
    Publication date: October 24, 2013
    Inventors: Erhard BRANDL, Joerg SANDER, Achim SCHOBERTH
  • Patent number: 8563142
    Abstract: A dual brazing alloy element for a materially integral connection of a ceramic surface to a metallic surface includes a first layer having a Ni-based brazing alloy with a Ni content of at least 50% by weight and having at least one component configured to lower a melting point of the Ni-based brazing alloy selected from the group consisting of Si, B, Mn, Sn and Ge. A second layer includes an active brazing alloy material having a total content of 1-15% by weight of at least one active element selected from the group consisting of Ti, Hf, Zr and V.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: October 22, 2013
    Assignee: Alstom Technology Ltd
    Inventors: Hans-Peter Bossmann, Alexander Schnell
  • Patent number: 8535755
    Abstract: A method for making a riser tensioner component is provided. The method comprises the steps of (a) applying a cold spray composition to a metal substrate to achieve a first coating on the metal substrate, wherein the cold spray composition comprises a metal alloy, and wherein the first coating has a thickness in a range from about 5 to about 50 mils; and (b) rough finishing the first coating to achieve a second coating having an average roughness, Ra of less than about 32 micro-inches. A riser tensioner component is also provided, wherein the riser tensioner component comprises a cold spray applied coating on a metal substrate, wherein the coating comprises a metal alloy, and wherein the coating has a thickness in a range from about 5 to about 50 mils; and an average roughness, Ra of less than about 32 micro-inches.
    Type: Grant
    Filed: August 31, 2010
    Date of Patent: September 17, 2013
    Assignee: General Electric Company
    Inventor: Leonardo Ajdelsztajn
  • Patent number: 8530391
    Abstract: A device for coating at least one substrate or for producing at least one molding by means of at least one cold gas spraying pistol, wherein the cold gas spraying pistol and the substrate or molding to be coated are arranged in a vacuum chamber, and also a method for cold gas spraying relating thereto in such a manner that while eliminating the wire production, the coil winding and also the cast in procedure, a thoroughly compact coil without a degree of freedom of movement (elimination of the quench risk) can be produced, it is suggested that the particles have at least to some extent an electrically conducting, in particular superconducting, property and at least to some extent an electrically poorly conducting or electrically insulating property.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: September 10, 2013
    Assignee: Linde Aktiengesellschaft
    Inventor: Matthias Bohn
  • Publication number: 20130174958
    Abstract: A molding method for a thin-profile composite capillary structure includes the steps of preparing a metal grid and metal powder separately; attaching a liquid medium onto the metal grid by means of spraying or brushing or steeping; attaching uniformly the metal powder onto the grid with the liquid medium; and fixing the metal powder onto the surface of the grid by means of sintering, such that a sintered powder layer is formed onto the surface of the grid. The structure includes a metal grid, which is of planar grid pattern made of woven metal wires. A sintered powder layer is sintered onto a lateral surface of the metal grid from the metal powder. The thickness of the sintered powder layer is 0.1 mm-0.7 mm. The total thickness of the thin-profile composite capillary structure is 0.2 mm-0.8 mm, thus presenting flexibility. The thin-profile composite capillary structure is particularly suitable for a heat pipe.
    Type: Application
    Filed: January 9, 2012
    Publication date: July 11, 2013
    Applicant: FORCECON TECHNOLOGY CO., LTD.
    Inventors: Sin-Wei He, Jhong - Yan Chang, Yen-Chen Chen
  • Publication number: 20130115441
    Abstract: Provided herein are nanoparticulate coated structures and methods of making structures. The structures comprise a support element, a nanoparticulate layer, and a binder disposed on the support element, wherein the binder comprises an alkali silicate or borate. In addition, methods of making the structures and uses of the described structures are described herein.
    Type: Application
    Filed: November 5, 2012
    Publication date: May 9, 2013
    Inventors: Dana Craig Bookbinder, Adam James Ellison, Umamaheswari Janakiraman, Wageesha Senaratne
  • Publication number: 20130089726
    Abstract: A process of applying a porous metallic structure and a cold-sprayed article are disclosed. The process includes cold spraying a solid feedstock and a low-melt material onto an article and removing at least a portion of the low-melt materials or applying a porous metallic structure includes cold spraying onto an article with two converging-diverging nozzles. The cold-sprayed article includes a porous metallic structure having a portion formed from cold spraying a solid feedstock. The portion includes the phases and microstructure of the solid feedstock.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 11, 2013
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Krishnamurthy ANAND, Eklavya CALLA, Sheo Narain GIRI
  • Patent number: 8399045
    Abstract: A film formation method according to the present invention includes the step of forming a film of material powders 7 by introducing a carrier gas 5 to a first chamber 8 accommodating the material powders 7 intermittently and mixing the material powders 7 and the carrier gas 5 to generate a first aerosol, introducing the first aerosol to a second chamber 9 to generate a second aerosol, and jetting the second aerosol to a third chamber 13 to form a film of the material powders 7.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Keiichi Takahashi, Shinji Mino, Tsunenori Yoshida
  • Patent number: 8398788
    Abstract: A thin zinc diffusion coating, the diffusion coating including: (a) an iron-based substrate, and (b) a zinc-iron intermetallic layer coating the iron-based substrate, the intermetallic layer having a first average thickness of less than 15 ?m, as measured by a magnetic thickness gage, the intermetallic layer having a second average thickness as measured by an X-Ray fluorescence thickness measurement, and wherein a difference between the first average thickness and the second average is less than 4 ?m.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: March 19, 2013
    Assignee: Greenkote Ltd
    Inventors: Avraham Sheinkman, Itzhac Rozenthul, Ilana Diskin
  • Patent number: 8383197
    Abstract: A metal powder is applied to the surface of the area of a carbon-carbon composite brake disc to be protected against migration of antioxidant. The metal powder may be titanium powder or tungsten powder. A chemical reaction between the metal powder and carbon is then initiated by heating the powder-coated brake to the ignition temperature via application of electric current (Joule preheating) or by heating it in a furnace. Upon combustion, the metal particles react with carbon in the composite, forming liquid carbide that flows into pores of the composite brake disc to be protected.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: February 26, 2013
    Assignees: Honeywell International Inc., University of Notre Dame Du Lac
    Inventors: Mark L. La Forest, Allen H. Simpson, Slawomir Fryska, Alexander Mukasyan
  • Patent number: 8313810
    Abstract: A method for forming an oxide-dispersion strengthened coating on a metal substrate is disclosed. The method generally includes comminuting MCrAlY alloy particles to form an oxygen-enriched powder, wherein at least about 25% by volume of the MCrAlY alloy particles within the oxygen-enriched powder have a particle size of less than about 5 ?m. Additionally, the method includes applying the oxygen-enriched powder to the metal substrate to form a coating and heating the oxygen-enriched powder to precipitate oxide dispersoids within the coating.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: November 20, 2012
    Assignee: General Electric Company
    Inventors: David Andrew Helmick, George Albert Goller, Raymond Joseph Stonitsch
  • Patent number: 8268237
    Abstract: A method of coating a substrate with cryo-milled, nano-grained particles includes forming a face-centered-cubic gamma matrix comprising nickel, cobalt, chromium, tungsten and molybdenum, adding a dispersion strengthening material to the gamma matrix to form a first mixture, cryo-milling the first mixture to form a second mixture to form a nano-grained structure, and cold spraying the second mixture onto a substrate to form a coating having a nano-grained structure.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: September 18, 2012
    Assignee: General Electric Company
    Inventors: Eklavya Calla, Krishnamurthy Anand, Pazhayannur Ramanathan Subramanian, Sanjay Kumar Sondhi, Ramkumar Oruganti
  • Publication number: 20120231289
    Abstract: First, in a primary sintering step, a manufacturing system 1 for a sliding member 2 laminates and thereby forms a sintered alloy layer 4 on back metal 3. Subsequently, a large number of indents 5 are formed on a front surface of the sintered alloy layer 4 by an indent forming mechanism 14. Next, the back metal 3 and sintered alloy layer 4 are rolled by a reduction roll 15 and a secondary sintering process is applied to the sintered alloy layer 4. Consequently, the sliding member 2 is manufactured with the large number of indents 5 provided on a front surface. Since the indents 5 are formed on the sintered alloy layer 4 after the primary sintering step, it is possible to inhibit work hardening from occurring in the indents 5 and surrounding areas.
    Type: Application
    Filed: October 18, 2010
    Publication date: September 13, 2012
    Inventors: Takahiro Kurono, Kazunori Kondo, Hirofumi Sei, Eichi Sato
  • Patent number: 8261444
    Abstract: A method of manufacturing a rotor includes: (a) providing a core shaft; (b) cold spraying alloy powder particles onto the core shaft; (c) controlling the cold spraying to form sections at least of different shape along the core shaft to thereby form a near-net shape rotor; and (d) heat treating the near-net shape rotor to relieve stresses and to form diffusion bonding across interfaces between individual powder particles and the core shaft, and finish-shaping said near-net shape rotor.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: September 11, 2012
    Assignee: General Electric Company
    Inventors: Eklavya Calla, Surinder Pabla, Raymond Goetze
  • Patent number: 8252733
    Abstract: To provide a sliding material whose superficial sliding characteristics can be modified in compliance with the requirements of sliding component parts without ever changing the surface roughness of sliding material very much by means of shot blasting treatment, and to provide a sliding member using the sliding material. A sliding material according to the present invention is characterized in that it comprises: a metallic substrate; and an adhered metal being formed by mechanical adhesion by means of shot blasting metallic particles, which are softer than said metallic substrate and whose friction coefficients are smaller than that of said metallic substrate, onto a sliding surface of said metallic substrate so as to cover 8% or more of the sliding surface of said metallic substrate.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: August 28, 2012
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Motoharu Tanizawa, Kyoichi Kinoshita, Motoji Miyamoto
  • Patent number: 8241702
    Abstract: The embodiments include a method for producing a coating through cold gas spraying. In the process, particles according to the embodiments are used which contain a photocatalytic material. In order to improve the effect of this photocatalytic material (such as titanium dioxide), a reactive gas can be added to the cold gas stream, the reactive gas being activated by a radiation source not shown, for example by UV light, on the surface of the coating that forms. This makes it possible to, for example, dose titanium dioxide with nitrogen. This allows the production of in situ layers having advantageously high catalytic effectiveness. The use of cold gas spraying has the additional advantage in that the coating can be designed to contain pores that enlarge the surface available for catalysis.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: August 14, 2012
    Assignee: Siemens Aktiengesellschsft
    Inventors: Christian Doye, Ursus Krüger, Uwe Pyritz