Iron Compound Containing Base (e.g., Ferric Oxide, Etc.) Patents (Class 427/255.22)
  • Publication number: 20110117276
    Abstract: This invention relates to erosion resistant coatings comprising at least 2 sublayer systems in which each sublayer system is separated from another by an interlayer, wherein (i) each sublayer system is the same or different and comprises at least 4 layers, (ii) said layers comprise alternating layers of a nitride-containing compound of stoichiometric composition and a nitride-containing compound of nonstoichiometric composition, (iii) each sublayer system has a thickness of greater than about 0.4 microns, and (iv) each interlayer is the same or different and comprises a metal-containing compound. This invention also relates to a method for producing the coatings and to articles, e.g., gas turbine compressor rotor blade and stator vanes, coated with the coatings.
    Type: Application
    Filed: January 25, 2011
    Publication date: May 19, 2011
    Inventors: Albert Feuerstein, Thomas Albert
  • Publication number: 20100314005
    Abstract: A highly corrosion-resistant member that is equipped with: a substrate made of stainless steel; an intermediate layer coated on at least a part of a surface of the substrate; and an amorphous carbon film coated on at least a part of a surface of the intermediate layer is completed by forming the intermediate layer and amorphous carbon film at such a low temperature that a temperature of the surface of the substrate is 450° C. or less. Another highly corrosion-resistant member that is equipped with: a substrate made of stainless steel, substrate whose superficial-layer portion is subjected to nitriding treatment; and an amorphous carbon film coated on at least a part of a surface of the superficial-layer portion is completed by carrying out the nitriding treatment and a formation of the amorphous carbon film at such a low temperature that a temperature of a surface of said substrate is 450° C. or less.
    Type: Application
    Filed: November 9, 2007
    Publication date: December 16, 2010
    Applicants: JTEKT Corporation, CNK Co., Ltd.
    Inventors: Toshiyuki Saito, Masahiro Suzuki, Hiroyuki Hashitomi
  • Publication number: 20100166815
    Abstract: The invention relates to a method for preparing a nanocomposite material by simultaneous vapour phase chemical deposition and vacuum injection of nanoparticles and to the materials and nanoparticles obtained thus and the application thereof.
    Type: Application
    Filed: July 18, 2008
    Publication date: July 1, 2010
    Inventors: Sophie Mailley, Laurent Bedel, Fabrice Emieux
  • Patent number: 7732012
    Abstract: Provided is a method for the preparation of polycrystalline silicon in which, in conducting preparation of polycrystalline silicon by the Siemens method or by the monosilane method, no outer heating means is necessitated for the core member (seed rod), onto which polycrystalline silicon is deposited, from the initial stage of heating, the deposition rate is high and the core member seed rod can be used repeatedly. The method for deposition of high-purity polycrystalline silicon, at a high temperature, onto a white-heated seed rod in a closed reaction furnace by pyrolysis or hydrogen reduction of a starting silane gas supplied thereto, is characterized in that the seed rod is a member made from an alloy having a recrystallization temperature of 1200° C. or higher. It is preferable that the alloy member is of an alloy of Re—W, W—Ta, Zr—Nb, titanium-zirconium, or a carbon-added molybdenum (TZM) in the form of a wire member having a diameter of at least 0.
    Type: Grant
    Filed: May 16, 2005
    Date of Patent: June 8, 2010
    Assignees: Shin-Etsu Film Co., Ltd, Sunric Co., Ltd
    Inventors: Tatsuhiko Hongu, Yasuhiro Kato, Hiroshi Hagimoto
  • Patent number: 7713583
    Abstract: An isotope-doped carbon nanotube (40) includes at least two kinds of carbon nanotube segments, each kind of carbon nanotube segment having a unique carbon isotope. The at least two kinds of carbon nanotube segments are arranged along a longitudinal direction of the carbon nanotube alternately or non-alternately. The carbon isotope is selected from the group consisting of a carbon-12 isotope, a carbon-13 isotope and a carbon-14 isotope. Three preferred methods employ different single isotope sources to form isotope-doped carbon nanotubes. In a chemical vapor deposition method, different isotope source gases are alternately or non-alternately introduced. In an arc discharge method, a power source is alternately or non-alternately switched between different isotope anodes. In a laser ablation method, a laser is alternately or non-alternately focused on different isotope targets.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: May 11, 2010
    Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.
    Inventors: Shou-Shan Fan, Liang Liu
  • Patent number: 7650710
    Abstract: A body of iron, steel or other such ferrous material is protected from thermochemical erosion by a layer of an iron nitride having a relatively low nitrogen content. The atomic percentage of nitrogen in the iron nitride layer is no greater than 20%, and in specific embodiments is in the range of 10-15%. The nitride layer may have a layer of a refractory material deposited thereatop. Some refractory materials include metals such as chromium. The invention has specific utility for protecting gun barrels, turbines, internal combustion engines, drilling equipment, machine tools, aerospace systems and chemical reactors which are exposed to extreme conditions of temperature and pressure. Specifically disclosed is a gun barrel which incorporates the invention.
    Type: Grant
    Filed: June 3, 2004
    Date of Patent: January 26, 2010
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Paul J. Conroy, James M. Garner, Charles Leveritt
  • Publication number: 20090324825
    Abstract: Embodiments related to chemical vapor deposition of aluminum nitride onto surfaces are provided. In particular, methods are provided for coating AlN onto solid surfaces by heating and vaporizing an aluminum nitride precursor and exposing solid surfaces to the heated and vaporized aluminum nitride precursor. In an embodiment, the aluminum nitride precursor is AlCl3(NH3)x, wherein x=1-6. In an embodiment, the surface is a metallic substrate, such as a silicon, aluminum nitride, steel, aluminum, molybdenum and manganese. In an embodiment, the surface is steel that is nitrided to form an iron nitride layer on which AlN is deposited.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 31, 2009
    Inventors: Carl R. EVENSON, Erick J. SCHUTTE, Joel S. THOMPSON
  • Patent number: 7510608
    Abstract: Disclosed herein is a hard coating film of laminate type which comprises more than one layer of a first kind, which has a composition represented by the formula (1a) below and a thickness of 1 to 80 nm, and more than one layer of a second kind, which has a composition represented by the formula (2a) below and a thickness of 1 to 80 nm, the layers being placed alternately one over another. (Cr(1-a)Ala)(C(1-x)Nx) ??(1a) (Zr(1-k)Hfk)(C(1-y)Ny) ??(2a) where each subscript denotes the atomic ratio specified below. 0.2?a?0.8 0.7?x?1 0?k?1 0.5?y?1 The hard coating film has outstanding high-temperature characteristics.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: March 31, 2009
    Assignee: Kobe Steel Ltd.
    Inventor: Kenji Yamamoto
  • Patent number: 6565729
    Abstract: A process for metallization of a workpiece, such as a semiconductor workpiece. In an embodiment, an alkaline electrolytic copper bath is used to electroplate copper onto a seed layer, electroplate copper directly onto a barrier layer material, or enhance an ultra-thin copper seed layer which has been deposited on the barrier layer using a deposition process such as PVD. The resulting copper layer provides an excellent conformal copper coating that fills trenches, vias, and other microstructures in the workpiece. When used for seed layer enhancement, the resulting copper seed layer provide an excellent conformal copper coating that allows the microstructures to be filled with a copper layer having good uniformity using electrochemical deposition techniques. Further, copper layers that are electroplated in the disclosed manner exhibit low sheet resistance and are readily annealed at low temperatures.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: May 20, 2003
    Assignee: Semitool, Inc.
    Inventors: Linlin Chen, Gregory J. Wilson, Paul R. McHugh, Robert A. Weaver, Thomas L. Ritzdorf
  • Patent number: 6231690
    Abstract: A method of oxidation treatment of the inner surface of a ferritic stainless steel pipe comprising feeding an oxidizing gas into steel pipe from one end thereof while moving the steel pipe in a pipe-length direction, and heating the pipe in a heating furnace in a non-oxidizing atmosphere at a specific temperature of T° C. which falls within the range of 700-1100° C. The method is capable of efficiently forming Cr oxide film having a uniform Cr content and film thickness over the entire length of the inner surface of the steel pipe used as a piping member or piping for supplying a high-purity fluid, such as high-purity gas or water used in a semiconductor manufacturing process.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: May 15, 2001
    Inventor: Sigeki Azuma
  • Patent number: RE40082
    Abstract: Coated milling insert has a WC—Co cemented carbide with a low content of cubic carbides and a highly W-alloyed binder phase and a coating including an inner layer of TiCxNy with columnar grains followed by a layer of ?-Al2O3 and a top layer of TiN. The coated milling insert is particularly useful for milling of grey cast iron with or without cast skin under wet conditions at low and moderate cutting speeds and milling of nodular cast iron and compacted graphite iron with or without cast skin under wet conditions at moderate cutting speeds.
    Type: Grant
    Filed: June 8, 2006
    Date of Patent: February 19, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventors: Anders Nordgren, Ingemar Hessman, Marian Mikus