Boride, Carbide, Nitride, Phosphide, Silicide, Or Sulfide-containing Coating Patents (Class 427/419.7)
  • Patent number: 6248434
    Abstract: The invention concerns a composite body consisting of a hard metal, cermet or ceramic substrate body and at least one layer of a mechanically resistant material, a ceramic substance, a diamond-like layer, amorphous carbon and/or hexagonal boron nitride. The invention also concerns a method of producing this composite body, wherein, when the green compact has been dewaxed, with its pores still open and whilst it continues to be heated as from a temperature of between 600° C. and 1100° C., it is acted upon by sublimable solids and/or reaction gases which are necessary for coating purposes. The temperature of the green compact is then further increased and the latter is fully compressed by sintering, before one or more layers of the above-mentioned type is/are applied.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: June 19, 2001
    Assignee: Widia GmbH
    Inventors: Klaus Rödiger, Hartmut Westphal, Klaus Dreyer, Thorsten Gerdes, Monika Willert-Porada
  • Patent number: 6238744
    Abstract: A method for eliminating hoot noise in a bearing assembly (12) of an idler or tensioner pulley (10) includes applying a three component dry lubricating compound onto steel contact surfaces of the inner and outer raceways (14, 16) on which the ball bearings (20) ride, curing the compound to bond it to the contact surfaces, and pressure rolling the lubricating compound onto the surfaces. Pressure rolling fills voids (22) in the contact surfaces with particles of the lubricating compound and smoothes the surfaces thereby reducing friction. The dry lubricating compound has a very strong affinity for oil to attract and hold oil to provide an oil film which prevents metal to metal contact thereby eliminating hoot noise.
    Type: Grant
    Filed: December 15, 1999
    Date of Patent: May 29, 2001
    Assignee: Ford Motor Company
    Inventors: Thomas Magoulick, Vemulapalli Durga Nageswar Rao
  • Patent number: 6235416
    Abstract: A composite in which a substrate body is coated with a single layer or multiple layers and at least one layer has two or three phases comprised of cubic ZrCN and monoclinic or tetragonal ZrO2. The composite can be in the form of a lathe or milling cutter cutting insert.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: May 22, 2001
    Assignee: Widia GmbH
    Inventors: Udo Kõnig, Hartmut Westphal, Volkmar Sottke
  • Patent number: 6224942
    Abstract: The invention includes methods of forming aluminum containing lines having titanium nitride containing layers thereon, and preferably by physical vapor deposition. In one aspect, a first layer including at least one of elemental aluminum or an aluminum alloy is formed over a substrate. A second layer including an alloy of titanium and the aluminum from the first layer is formed. The alloy has a higher melting point than that of the first layer. A third layer including titanium nitride is formed over the second layer. The first, second and third layers are formed into a conductive line. In one aspect, a method of forming an aluminum containing line having a titanium nitride containing layer thereon includes physical vapor depositing a first layer having at least one of elemental aluminum or an aluminum alloy over a substrate.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: May 1, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Shane P. Leiphart
  • Patent number: 6221174
    Abstract: The present invention is a method of wafer processing which improves the reliability of an integrated titanium (Ti)/titanium nitride (TiN) CVD film formed from a reaction of titanium tetrachloride (TiCi4) and ammonia (NH3). A Ti film is subject to a treatment of NH3 gas to render the Ti film unreactive towards attack by chlorine and hydrogen chloride. A thin seed layer of TiN film is deposited upon the treated Ti film using a thermal TiCl4/NH3 reaction. Subsequent TiN film deposition upon the seed layer results in a successful integration of a Ti/TiN film stack for a Ti film thickness up to about 300 Å.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: April 24, 2001
    Assignee: Applied Materials, Inc.
    Inventors: Fufa Chen, Yin Lin, Jianhua Hu, Frederick Wu, Ming Xi, Li Wu
  • Patent number: 6210520
    Abstract: The present invention provides a novel screen printable thermosetting composition for forming thermally conductive interface and a method of using the same. The composition is used to promote the transfer of heat from a source of heat such as an electronic device to a heat dissipation device such as a heat sink. The composition comprises by weight from about 35% to about 75% of a thermal curing vinyl terminated siloxane material, from about 0.005% to about 5% catalyst, from about 10% to about 30% hydrocarbon solvent and from about 20% to about 70% conductive filler.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: April 3, 2001
    Assignee: Ferro Corporation
    Inventors: Jesus E. Osuna, Keith M. Mason, Vernon E. Stygar
  • Patent number: 6207262
    Abstract: A coated cemented carbide endmill comprises a tungsten carbide based cemented carbide substrate comprising 5-20% Co as a binder phase forming component, optionally 0.1-2% of Cr and/or V as a binder phase forming component, optionally 0.1-5% of one or more of (Ti, Ta, Nb, Zr) C·N as a dispersed phase forming component, and the balance being WC as the dispersed phase forming component and inevitable impurities. The WC has a fine grained structure having an average grain size of 0.1-1.5 &mgr;m, the cemented carbide substrate has a reaction-created surface layer formed on the surface portion thereof which is formed by heating at high temperature and in which ComWnC is distributed over a thickness of 0.1-2 &mgr;m thereof, and further the substrate has coated layers composed of a Ti compound layer. Optionally, an Al2O3 layer is formed thereon with an average layer thickness of 0.5-4.
    Type: Grant
    Filed: September 2, 1998
    Date of Patent: March 27, 2001
    Assignee: Mitsubishi Materials Corporation
    Inventors: Hiroshi Ichikawa, Shogo Inada, Akira Osada, Katsuhiko Sato, Kazuhiro Kawano
  • Patent number: 6180182
    Abstract: A component of an aluminium production cell, in particular a cathode or a cell lining of an electrolytic cell for the production of aluminium by the electrolysis of alumina in cryolite, having an aluminium-wettable refractory coating on a heat-stable baked carbon-containing body, is produced from a part-manufactured cell component which is a layered composite of two precursors. A precursor layer of the aluminium-wettable refractory coating contains at least one aluminium-wettable refractory material in particulate form, or a particulate micropyretic reaction mixture which when ignited reacts to form at least one aluminium-wettable refractory material, or a mixture thereof, and non-carbon fillers and binders. A non-baked or part-baked precursor of the heat-stable carbon-containing body comprises particulate carbon compacted with a heat-convertible binder which when subjected to heat treatment binds the particulate carbon into the heat-stable carbon-containing body of the fully-manufactured cell component.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: January 30, 2001
    Assignee: Moltech Invent S.A.
    Inventors: Jainagesh A. Sekhar, Vittorio de Nora
  • Patent number: 6180176
    Abstract: Elastomer surfaces and methods for providing elastomer surfaces on a supporting substrate which include a) dissolving an elastomer in an effective solvent, b) adding an adhesive primer to form an elastomer and primer solution, wherein the adhesive primer is preferably a vinyl siloxane, and c) subsequently providing at least one layer of the elastomer and primer solution to the supporting substrate to form a topcoat layer.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: January 30, 2001
    Assignee: Xerox Corporation
    Inventors: Heather C. Gledhill, Roger L. Imm, Allan J. Edwards, David V. Pudge
  • Patent number: 6176769
    Abstract: A ceramics dress substrate of the present invention capable of both performances of cutting a cut material with a high accuracy and dressing a diamond cutting grindstone with an excellent cutting property and an reduced wearing amount of the grindstone. This ceramics dress substrate comprises sintering a mixture of ceramics grinding particles and a silicate mineral, The ceramics grinding particles are preferably uniformed and have a scratch hardness ranging from 6 to 10. Alumina grinding particles, silicon carbide and mullite are preferably used as the ceramics grinding particles, and a kaolin mineral, pyrophyllite, montmorillonite, sericite, talc and chlorite are preferably used as the silicate mineral. The ceramics dress substrate is preferably coated with glass.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: January 23, 2001
    Assignees: Narumi China Corporation, Sumitomo Special Metals Co., Ltd.
    Inventors: Masato Suzuki, Shirohito Matsuyama, Katsushi Sugita, Kazutoyo Shimizu, Naoyuki Okamoto