And Aluminum Compound Patents (Class 501/89)
  • Patent number: 10350563
    Abstract: Methods for forming cutting elements comprising polycrystalline materials, methods for forming polycrystalline compacts for cutting elements of a drilling tool, methods for forming polycrystalline diamond compacts, and resulting polycrystalline compacts and cutting elements are disclosed. Grains of a hard material are introduced to a press and subjected to a high-pressure, high-temperature (HPHT) process to sinter the grains. The system conditions (i.e., temperature and pressure) are then adjusted past a phase or state change point, after which, at least one of the system conditions is held during an anneal stage before the system conditions are adjusted to final levels. The resulting compacts and cutting elements may therefore include inter-granularly bonded hard material grains with a more stable microstructure (e.g., less stressed microstructure) than a polycrystalline compact and cutting element formed without an anneal stage during the HPHT process.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: July 16, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Anthony A. DiGiovanni, Danny E. Scott
  • Patent number: 10301220
    Abstract: A composition for applying to a honeycomb body includes a refractory filler, an organic binder, an inorganic binder, and a liquid vehicle, wherein the refractory filler, the particle size distribution of the refractory filler, the organic binder, and the inorganic binder are selected such that, when the composition is applied to plug a plurality of channels of the honeycomb body, the plug depth variability is reduced.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: May 28, 2019
    Assignee: Corning Incorporated
    Inventors: Keith Norman Bubb, Anthony Joseph Cecce, Allison Elizabeth Cronin, Huthavahana Kuchibhotla Sarma, Courtney Spencer Warren
  • Patent number: 9758434
    Abstract: A refractory article can include a body including a content of alumina of at least 60 wt %, a content of silica of not greater than 20 wt %, a content of zirconia of not greater than 20 wt % for a total weight of the body. In a particular embodiment, the body includes a third phase including composite grains including mullite and zirconia. The third phase including the composite grains can be present within a range including at least 1 wt % and not greater than 35 wt % for a total weight of the body.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: September 12, 2017
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Allan R. Case, Edmund A. Cortellini, Hansong Huang, Melanie Kuhn, Nancy F. Levoy, Wesley S. Towle
  • Patent number: 9685325
    Abstract: Methods for the deposition of a silicon-containing film using an organic reactant, a silicon precursor and a plasma.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: June 20, 2017
    Assignee: Applied Materials, Inc.
    Inventors: Mark Saly, David Thompson, Jessica Sevanne Kachian
  • Patent number: 9512040
    Abstract: A rotary anode for an X-ray tube includes a ceramic base body that carries a focal path for emitting X-rays during electron irradiation. The ceramic base body is made of a mixture of silicon carbide and at least one high temperature-resistant diboride.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: December 6, 2016
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joerg Freudenberger, Stefan Lampenscherf, Gia Khanh Pham, Steffen Walter
  • Patent number: 9382121
    Abstract: A high-purity silicon carbide powder and its production method enable mass production of the high-purity silicon carbide powder at low cost in a safe manner. The content of impurities in the silicon carbide powder is 500 ppm or less. The silicon carbide powder can be obtained by heating a raw material for silicon carbide production in an Acheson furnace using a heat generator. The raw material for silicon carbide production is prepared by mixing a siliceous raw material and a carbonaceous raw material. The raw material for silicon carbide production contains the siliceous raw material and the carbonaceous raw material at a mixture mole ratio (C/SiO2) of 2.5 to 4.0 and has a content of impurities of 120 ppm or less.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 5, 2016
    Assignee: TAIHEIYO CEMENT CORPORATION
    Inventors: Kenta Masuda, Kouki Ichitsubo, Kohei Kawano, Masakazu Suzuki, Jun Kumasaka, Hideaki Tanaka
  • Patent number: 9375783
    Abstract: Discontinuous fiber preforms, fiber-reinforced metal matrix composites, and methods of making same are disclosed. A fiber preform includes a milled fiber material having a weighted average fiber length of about 0.03 mm to 0.12 mm and/or a percent fiber volume fraction of the fiber preform of about 15% to about 55%. The milled fiber material is at least substantially free of a binder material. A fiber-reinforced MMC includes a milled fiber material having a weighted-average fiber length of about 0.03 mm to 0.12 mm and/or a percent fiber volume fraction of the fiber preform of about 15% to about 55%. The fiber-reinforced MMC further includes a metal infiltrated into the milled fiber material. The milled fiber material is at least substantially free of a binder material. The milled fiber can be substantially uniformly oriented and/or randomly oriented in the fiber preform and/or the fiber-reinforced MMC.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: June 28, 2016
    Assignee: Triton Systems, Inc.
    Inventors: Karin M. Karg, Justin Andreas Neutra, Jeff Parnell, James Gorman
  • Patent number: 9321691
    Abstract: A product obtained by solid-phase sintering of a silicon carbide powder and of a sintering additive, the product having a relative density of greater than 98.5% and including: more than 92% by weight of SiC present in the form of grains, less than 2% by weight of elemental oxygen, less than 6% by weight, in total, of other elements, wherein more than 10% by number of the SiC grains, on the basis of the total number of the grains, have an elongation factor F of greater than 3 (F>3), wherein more than 50% by number of the grains, the elongation factor F of which is greater than 3, have a width of greater than 3 micrometers, and wherein the other SiC grains in the product have a mean equivalent diameter of greater than 1 micrometer and less than 20 micrometers.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: April 26, 2016
    Assignees: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Gilles Rossiquet, Eric Jorge
  • Patent number: 9115034
    Abstract: The invention relates to a ceramic particle mixture containing, as components, a predominant portion by weight of frittable particles made of a ceramic material and particles of at least one additive, at least one additive being a dispersed absorbent solid inorganic material which has, for a laser beam emitted at a predetermined wavelength, a specific absorptivity that is greater than the absorptivity of the other components of the ceramic mixture, and which drastically breaks down when gas is emitted in the presence of the laser beam, said additive being present in proportions of less than 5% of the dry weight. The invention also relates to ceramic parts produced from such a mixture.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: August 25, 2015
    Assignee: FIB-Service Intellectual, S.A.
    Inventors: Fabrice Petit, Véronique Lardot, Cédric Ott, Enrique Juste, Francis Cambier
  • Publication number: 20150111718
    Abstract: Sintered product exhibiting a relative density of greater than 97% and composed of: more than 92% by weight of silicon carbide, between 0.5% and 8% by weight of an amorphous secondary phase comprising the elements O, Si and one or two elements chosen from Al and Y, less than 2% of other elements, present in said product in the form of an additional phase or of unavoidable impurities, in which the silicon carbide is present in the form of crystalline grains and in which said secondary phase is amorphous and located essentially at the boundaries of the silicon carbide grains.
    Type: Application
    Filed: April 15, 2013
    Publication date: April 23, 2015
    Applicants: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Gilles Rossiquet, Eric Jorge
  • Publication number: 20150093540
    Abstract: There is disclosed a porous material. The porous material contains aggregates, and a bonding material which bonds the aggregates to one another in a state where pores are formed among the aggregates, the bonding material contains crystalline cordierite, the bonding material further contains a rare earth element or a zirconium element, and a ratio of a mass of the bonding material to a total mass of the aggregates and the bonding material is from 12 to 45 mass %. The bonding material preferably contains, in the whole bonding material, 8.0 to 15.0 mass % of MgO, 30.0 to 60.0 mass % of Al2O3, 30.0 to 55.0 mass % of SiO2, and 1.5 to 10.0 mass % of a rare earth oxide or zirconium oxide.
    Type: Application
    Filed: September 5, 2014
    Publication date: April 2, 2015
    Inventors: Shuichi ICHIKAWA, Atsushi MIZUNO
  • Patent number: 8951638
    Abstract: A silicon carbide powder for the production of a silicon carbide single crystal has an average particle diameter of 100 ?m or more and 700 ?m or less and a specific surface area of 0.05 m2/g or more and 0.30 m2/g or less. A method for producing a silicon carbide powder for the production of the silicon carbide single crystal including sintering a silicon carbide powder having an average particle diameter of 20 ?m or less under pressure of 70 MPa or less at a temperature of 1900° C. or more and 2400° C. or less and in a non-oxidizing atmosphere, thereby obtaining a sintered body having a density of 1.29 g/cm3 or more; adjusting particle size by means of pulverization of the sintered body; and removing impurities by means of an acid treatment.
    Type: Grant
    Filed: May 15, 2013
    Date of Patent: February 10, 2015
    Assignees: Denki Kagaku Kogyo Kabushiki Kaisha, National Institute of Advanced Industrial Science and Technology
    Inventors: Tomohisa Katou, Yusuke Takeda, Hiroshi Murata
  • Publication number: 20140370232
    Abstract: There is disclosed a porous material containing aggregates; and a composite binding material which binds the aggregates to one another in a state where pores are formed and in which mullite particles that are reinforcing particles are dispersed in cordierite that is a binding material, and a content of metal silicon is smaller than 15 mass %. Preferably, to a total mass of the aggregates, the composite binding material and the metal silicon, a lower limit value of a content of the composite binding material is 12 mass %, and an upper limit value of the content of the composite binding material is 50 mass %. Preferably, to the total mass, a lower limit value of a content of the mullite particles is 0.5 mass %, and an upper limit value of the content of the mullite particles is 15 mass %. A porous material having a high thermal shock resistance is provided.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Inventors: Yunie IZUMI, Yoshimasa KOBAYASHI
  • Publication number: 20140349117
    Abstract: The invention pertains to hardware such as cutting tools with improved performance, wear-resistance and durability made from sintered polycrystalline aluminum nitride based ceramic composites containing secondary or dispersed phases for enhanced toughness. The articles of this invention provide good hardness, toughness, chemical inertness, thermal stability, lubricity, wear-resistance, and the ability to operate in the presence of liquid coolants, yielding good surface finish and long lifetime. The cutting tools of this invention are applicable to a wide range of industrial, biomedical, commercial and other applications.
    Type: Application
    Filed: May 27, 2014
    Publication date: November 27, 2014
    Applicant: Surmet Corporation
    Inventor: Suri A. Sastri
  • Patent number: 8865607
    Abstract: A composite article including a body made of recrystallized silicon carbide and an infiltrant, wherein the body comprises a static impact resistance of at least about 1800 MPa.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: October 21, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Christopher J. Reilly, Edmund A. Cortellini, Robin M. Harrington
  • Publication number: 20140295368
    Abstract: The invention relates to a refractory material for use in different parts of rotary furnaces, having a composition of minerals defined as a percentage by weight of sintered mullite or andalusite or sintered alumina or fused alumina or electrocast alumina-zirconium of between 30 and 80%, a percentage by weight of silicon carbide of between 5 and 15%. The material is used as a lining in rotary furnaces, for the precalciner, the smoke chamber, the furnace inlet, the burning area, the safety area, the furnace outlet area and the cooler.
    Type: Application
    Filed: October 11, 2012
    Publication date: October 2, 2014
    Applicant: REFRACTARIA, S.A.
    Inventors: Carlos Omar Suarez Alvarez, Jose Louis Pena Vazquez
  • Publication number: 20140291904
    Abstract: A castable refractory composition may include from 5% to 95% by weight of alumina, aluminosilicate, or mixtures thereof: up to 70% by weight silicon carbide: up to 10% by weight carbon: from 0.1% to 5% by weight alkaline earth metal oxide and/or hydroxide; and from 0.1% to 5% bv weight of silica having a surface area of at least about 10 m2/g. The refractory composition may further include no more than 0.5% by weight of cementitious binder, and the refractory composition may not release a significant amount of hydrogen gas upon addition of water. The refractory composition may set on addition of water. An installable refractory lining may be formed using the composition and a method including at least one of casting, self-flowing, wet shotcreeting, rodding, cast-vibrating, spraying, conventional dry gunning, or high density gunning the castable refractory composition, and setting and drying the composition.
    Type: Application
    Filed: August 30, 2012
    Publication date: October 2, 2014
    Inventor: Jérome Soudier
  • Patent number: 8828281
    Abstract: Starting from, as the initial composite, an LAS component in accordance with the composition LixAlySizOw, where x varies between 0.8 and 1.2, y varies between 0.8 and 1.2, z varies between 0.8 and 2, and w varies between 4 and 6, the LAS component is subsequently mixed with SiC nanoparticles, to obtain a stable, homogeneous suspension. Thereafter, the resulting suspension is dried. Subsequently, the material obtained is shaped and, finally, the material obtained in the preceding step is sintered.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: September 9, 2014
    Assignee: Consejo Superior de Investigaciones Cientificas (CSIC)
    Inventors: Ramon Torrecillas San Millan, Olga Garcia Moreno, Adolfo Fernandez Valdes
  • Patent number: 8815759
    Abstract: Disclosed is a cement-free high strength unshaped refractory in which barium aluminate and a dispersant are further added to a refractory which includes a refractory material containing Al2O3 and SiC and an alumina sol binder to largely improve handling strength of the unshaped refractory. The unshaped refractory according to the present invention is usefully applicable to lining which contacts slag in a blast furnace or a gasifier.
    Type: Grant
    Filed: November 12, 2012
    Date of Patent: August 26, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyoung Ran Han, Sang Whan Park, Chang Sam Kim
  • Patent number: 8741797
    Abstract: A composite article having a body including a first phase that includes a nitride material, a second phase that includes a carbide material, and a third phase having one of an amorphous phase material with a nitrogen content of at least about 1.6 wt % or an amorphous phase material comprising carbon.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: June 3, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Christopher J. Reilly, Vimal K. Pujari, Edmund A. Cortellini, David M. McElwee
  • Publication number: 20140051566
    Abstract: A ceramic sintered body according to the present invention comprises: silicon carbide and aluminum nitride, wherein a weight ratio of the aluminum nitride relative to a total weight ratio of the silicon carbide and the aluminum nitride is greater than 10% and 97% or smaller, and a bulk density is greater than 3.18 g/cm3.
    Type: Application
    Filed: April 20, 2012
    Publication date: February 20, 2014
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Fumio Odaka
  • Patent number: 8618006
    Abstract: A cement free refractory mixture contains aluminum oxide, silicon carbide, fumed silica, aluminum metal, an anti-oxidant, reactive alumina, and a carbon-bearing material. The mixture can be formed by conventional techniques to create refractory articles to contain or direct the flow of liquid metals. Refractory articles formed by the mixture do not require firing to achieve an initial cure.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: December 31, 2013
    Assignee: Vesuvius Crucible Company
    Inventors: Robert A. Pattillo, Samuel B. Bonsall
  • Patent number: 8598057
    Abstract: A monolithic, unitary, seamless and physically continuous ceramic armor plate having first regions of one mechanical property and one chemical composition and one microstructural composition isolated from one another by a network of second regions of another mechanical property different from the one mechanical property and another chemical composition different from the one chemical composition and another microstructural composition different from the one microstructural composition, the one mechanical property and the another mechanical property being the propensity to crack.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: December 3, 2013
    Assignee: Verco Materials, LLC
    Inventor: Robert F. Speyer
  • Publication number: 20130260982
    Abstract: Disclosed is a cement-free high strength unshaped refractory in which barium aluminate and a dispersant are further added to a refractory which includes a refractory material containing Al2O3 and SiC and an alumina sol binder to largely improve handling strength of the unshaped refractory. The unshaped refractory according to the present invention is usefully applicable to lining which contacts slag in a blast furnace or a gasifier.
    Type: Application
    Filed: November 12, 2012
    Publication date: October 3, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyoung Ran HAN, Sang Whan PARK, Chang Sam KIM
  • Publication number: 20130260981
    Abstract: Disclosed is an alumina-coated spinel-silicon carbide refractory composition with good resistance to coal slag penetration and a method for manufacturing the same. The refractory composition refractory composition comprising 3 to 10 parts by weight of fine alpha alumina powder with respect to the weight of the refractory mixture, wherein the mixture is prepared by mixing alumina-coated spinel aggregates and silicon carbide in a ratio of 10:90 to 40:60 wt %, a dispersant, and an alumina sol as a binder.
    Type: Application
    Filed: November 12, 2012
    Publication date: October 3, 2013
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Chang Sam KIM, Sang Whan PARK
  • Publication number: 20130210605
    Abstract: A refractory composition and processes for manufacture are provided where the compositions possess improved refractory alkali resistance and superior handling properties. Compositions and processes for their manufacture may include a plurality of ceramic particles and a binder sintered to the particles wherein the binder includes crystalline aluminum orthophosphate distributed as the result of an in situ reaction of aluminum metaphosphate with alumina. Kits provided according to the invention provide materials for use in manufacture of a composition where the kit includes aluminum metaphosphate and a nonfacile additive.
    Type: Application
    Filed: March 22, 2011
    Publication date: August 15, 2013
    Applicant: STELLAR MATERIALS INCORPORATED
    Inventor: Jens Decker
  • Patent number: 8500834
    Abstract: A sintered cubic boron nitride (cBN) compact for use in a tool is obtained by sintering a mixture of (i) cubic boron nitride, (ii) aluminum oxide, (iii) one or more refractory metal compounds, and (iv) aluminum and/or one or more non-oxide aluminum compounds. The sintered bodies may have sufficient strength and toughness to be used as a tool material in solid, i.e. not carbide supported, form, and may be useful in heavy machining of cast irons.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: August 6, 2013
    Assignee: Diamond Innovations, Inc.
    Inventors: Stephen Dole, Dwight Dyer, Rajeev Pakalapati, James McHale
  • Patent number: 8426328
    Abstract: A composition of matter comprising 0.01 to 35% by weight of Al2O3, having a length of 10-20 ?m and a surface altered by wet etching, 0.01 to 98% by weight of SiC, having a length of 10-20 ?m and a surface altered by dry etching; and 0.01-15% by weight of kaolin, altered by treatment with Na2SiF6, with the above constituents being blended into a SiC/Al2O3 composite. Alternative embodiments are methods of producing the compositions described above. Further embodiments include products made by the process described above.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: April 23, 2013
    Inventor: C.Robert Kline
  • Publication number: 20120309608
    Abstract: The invention relates to a powder comprising more than 70% of refractory particles, in weight percent relative to the weight of the powder, a particle of said powder being classed in the fraction called “matrix” or in the fraction called “aggregate”, according to whether it is smaller than, or equal to 100 ?m, or larger than 100 ?m, respectively, said powder comprising, in weight percent relative to the weight of the powder: between 0.1% and 18% of particles of a heat-activatable binder, called “heat-activatable binder particles”; and more than 40% of refractory particles, called “ATZ particles”, having the following chemical composition, in weight percentages on the basis of the oxides of said ATZ particles: 10%?Al2O3?55%; 35%?TiO2?80%; 1%?MgO+Cr2O3?10%; 8%?ZrO2?20%; SiO2?8%.
    Type: Application
    Filed: December 23, 2010
    Publication date: December 6, 2012
    Inventors: Olivier Jean Francy, Eric Jorge
  • Publication number: 20120263929
    Abstract: A refractory object can include a beta alumina. In an embodiment, the refractory object is capable of being used in a glass fusion process. In another embodiment, the refractory object can have a total Al2O3 content of at least 10% by weight. Additionally, a Mg—Al oxide may not form along a surface of the refractory object when the surface is exposed to a molten glass including an Al—Si—Mg oxide. In a particular embodiment, a refractory object can be in the form of a glass overflow forming block used to form a glass object that includes an Al—Si—Mg oxide. When forming the glass object, the glass material contacts the beta alumina, and during the flowing of the glass material, a Mg—Al oxide does not form along the beta alumina at the surface.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 18, 2012
    Applicant: SAINT-GOBAIN CERAMIC & PLASTICS, INC.
    Inventor: Olivier Citti
  • Patent number: 8227364
    Abstract: The present invention relates to a porous planting medium containing minerals and a method for preparing the same, and more particularly, to a porous planting medium prepared by using bentonite and/or zeolite and minerals for promoting plant growth as raw materials and a method for preparing the same. The porous planting medium containing minerals according to the present invention can provide places where plants can grow due to the pores therein and create the ideal environment for plant growth due to minerals used therein. Also, since it is installed in a building with plant seeds germinated therein, it can provide effects of interior decoration, wood bathing due to anion generation and a pleasant interior environment.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: July 24, 2012
    Inventor: Se-Lin Lee
  • Publication number: 20120172474
    Abstract: A composition of matter comprising 0.01 to 35% by weight of Al2O3, having a length of 10-20 ?m and a surface altered by wet etching, 0.01 to 98% by weight of SiC, having a length of 10-20 ?m and a surface altered by dry etching; and 0.01-15% by weight of kaolin, altered by treatment with Na2SiF6, with the above constituents being blended into a SiC/Al2O3 composite. Alternative embodiments are methods of producing the compositions described above. Further embodiments include products made by the process described above.
    Type: Application
    Filed: September 24, 2010
    Publication date: July 5, 2012
    Applicant: CERAMIC SCIENCES GROUP, LLC
    Inventor: C.Robert Kline
  • Publication number: 20120165180
    Abstract: Starting from, as the initial composite, an LAS component in accordance with the composition LixAlySizOw, where x varies between 0.8 and 1.2, y varies between 0.8 and 1.2, z varies between 0.8 and 2, and w varies between 4 and 6, the LAS component is subsequently mixed with SiC nanoparticles, to obtain a stable, homogeneous suspension. Thereafter, the resulting suspension is dried. Subsequently, the material obtained is shaped and, finally, the material obtained in the preceding step is sintered.
    Type: Application
    Filed: August 17, 2010
    Publication date: June 28, 2012
    Applicants: Fundacion Instituto Technologico De Materiales Asturias (ITMA), Consejo Superior De Investigaciones Cientificas (CSIC)
    Inventors: Ramon Torrecillas San Millan, Olga Garcia Moreno, Adolfo Fernandez Valdes
  • Publication number: 20120142518
    Abstract: A cement free refractory mixture contains aluminum oxide, silicon carbide, fumed silica, aluminum metal, an anti-oxidant, reactive alumina, and a carbon-bearing material. The mixture can be formed by conventional techniques to create refractory articles to contain or direct the flow of liquid metals. Refractory articles formed by the mixture do not require firing to achieve an initial cure.
    Type: Application
    Filed: January 31, 2012
    Publication date: June 7, 2012
    Applicant: VESUVIUS CRUCIBLE COMPANY
    Inventors: Robert A. Pattillo, Samuel B. Bonsall
  • Patent number: 8137610
    Abstract: Disclosed is a molding compound for producing a fireproof lining, especially for a combustion chamber of a stationary gas turbine. The molding compound is characterized particularly by the fact that the molding compound is formed from more than about 50 percent by weight of silicon carbide and less than about 50 percent by weight of aluminum silicate.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: March 20, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Holger Grote, Margarete Herz, Wolfgang Kollenberg, Christine Rasch, Marc Tertilt
  • Patent number: 8129301
    Abstract: Disclosed is a molding compound for producing a fireproof lining, especially for a combustion chamber of a stationary gas turbine. Said molding compound is characterized particularly by the fact that the molding compound is formed from more than about 50 percent by weight of silicon carbide and less than about 50 percent by weight of aluminum silicate.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: March 6, 2012
    Assignee: Siemens Aktiengesellschaft
    Inventors: Holger Grote, Margarete Herz, Wolfgang Kollenberg, Christine Rasch, Marc Tertilt
  • Patent number: 8097546
    Abstract: A composition for ceramic extrusion-molded bodies includes a ceramic material, a water-soluble cellulose ether, a styrenesulfonate and water. A method for manufacturing a ceramic extrusion-molded body using the composition is also provided.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: January 17, 2012
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shingo Niinobe, Kazuhisa Hayakawa
  • Patent number: 8076255
    Abstract: To provide a long-life refractory capable of maintaining durability under severe conditions. The castable refractory comprises a mixture containing at least one of 2 to 10 mass % of silicon carbide and 3 to 10 mass % of chamotte, as an auxiliary raw material, and a binder material, with the remaining balance being one or more main raw materials selected from corundum, mullite, bauxite, chamotte, talc and silica, and is used in an environment exposed to an alkali component-containing hot gas atmosphere. In an alkali component-containing gas atmosphere at a high temperature (750° C. or more), silicon carbide and/or chamotte are vitrified to a thickness of 1 mm or less in the surface layer of the refractory to prevent the alkali component-containing gas from intruding inside of the refractory.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: December 13, 2011
    Assignee: Nippon Steel Corporation
    Inventors: Satoru Ito, Hitoshi Nakamura, Taijiro Matsui, Michio Nitta
  • Patent number: 8067323
    Abstract: A sintered cubic boron nitride (cBN) compact for use in a tool is obtained by sintering a mixture of (i) cubic boron nitride, (ii) aluminum oxide, (iii) one or more refractory metal compounds, and (iv) aluminum and/or one or more non-oxide aluminum compounds. The sintered bodies may have sufficient strength and toughness to be used as a tool material in solid, i.e. not carbide supported, form, and may be useful in heavy machining of cast irons.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: November 29, 2011
    Assignee: Diamond Innovations, Inc.
    Inventors: James Michael McHale, Jr., Rejeev Tirumala Pakalapati
  • Patent number: 7993571
    Abstract: A ceramic component is provided, including a ceramic body containing silicon carbide, and an oxide layer provided on the ceramic body, the oxide layer being formed by oxidizing the ceramic body in the presence of alumina having a submicron particle size.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: August 9, 2011
    Assignee: Saint-Gobain Ceramic & Plastics, Inc.
    Inventor: Raymond H. Bryden
  • Publication number: 20110124483
    Abstract: In various embodiments, composite materials containing a ceramic matrix and a carbon nanotube-infused fiber material are described herein. Illustrative ceramic matrices include, for example, binary, ternary and quaternary metal or non-metal borides, oxides, nitrides and carbides. The ceramic matrix can also be a cement. The fiber materials can be continuous or chopped fibers and include, for example, glass fibers, carbon fibers, metal fibers, ceramic fibers, organic fibers, silicon carbide fibers, boron carbide fibers, silicon nitride fibers and aluminum oxide fibers. The composite materials can further include a passivation layer overcoating at least the carbon nanotube-infused fiber material and, optionally, the plurality of carbon nanotubes. The fiber material can be distributed uniformly, non-uniformly or in a gradient manner in the ceramic matrix. Non-uniform distributions may be used to form impart different mechanical, electrical or thermal properties to different regions of the ceramic matrix.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Applicant: APPLIED NANOSTRUCTURED SOLUTIONS, LLC
    Inventors: Tushar K. SHAH, Harry C. Malecki, Murray N. Carson
  • Patent number: 7932199
    Abstract: A sintered cubic boron nitride (cBN) compact for use in a tool is obtained by sintering a mixture of (i) cubic boron nitride, (ii) aluminum oxide, (iii) one or more refractory metal compounds, and (iv) aluminum and/or one or more non-oxide aluminum compounds. The sintered bodies may have sufficient strength and toughness to be used as a tool material in solid, i.e. not carbide supported, form, and may be useful in heavy machining of cast irons.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: April 26, 2011
    Assignee: Diamond Innovations, Inc.
    Inventors: James Michael McHale, Jr., Rajeev Tirumala Pakalapati
  • Patent number: 7922812
    Abstract: A method for growing large single crystals of metals is disclosed. A polycrystalline form of a metal specimen is initially heated in a non-oxidizing environment. A minimum plastic strain is then applied to the heated metal specimen to initiate the growth of a selected grain within the heated metal specimen. Additional plastic strain is subsequently applied to the heated metal specimen to propagate the growth of the selected grain to become a large single crystal.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: April 12, 2011
    Assignee: Intellectual Ventures Holding 40 LLC
    Inventors: James R. Ciulik, Eric M. Taleff
  • Patent number: 7879285
    Abstract: Cermet comprising ceramic and metal components and a molten metal infiltration method and process for fabrication thereof. The light weight cermets having improved porosity, strength, durability, toughness, elasticity fabricated from presintered ceramic powder infiltrated with a molten metal or metal alloy. Alumina titanium cermets biocompatible with the human body suitable for bone and joint replacements.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: February 1, 2011
    Assignee: Lawrence Livermore National Security, LLC
    Inventor: Richard L. Landingham
  • Publication number: 20100331166
    Abstract: An object of the present invention is to produce a heat-resistant carbon/silicon carbide system composite material having a high density without deteriorating the mechanical properties such as toughness of carbon fiber. The present invention is a carbon/silicon carbide system composite material comprising a matrix containing a silicon carbide phase; a carbon fiber dispersed in the matrix; and a eutectic alloy phase containing silicon and an element for lowering a melting point of the silicon, wherein the carbon fiber is covered with a cover layer formed of a composite carbide of the silicon and the element.
    Type: Application
    Filed: June 29, 2010
    Publication date: December 30, 2010
    Inventors: Kishio HIDAKA, Kazuya Baba, Makoto Ebihara
  • Publication number: 20100304951
    Abstract: It is intended to provide a taphole mix capable of forming SiC bonds with minimum of an excess and a deficiency in components thereof, and excellent in drillability. A fine particle fraction having a particle diameter of 75 ?m or less is comprised of three components consisting of a silicon nitride-based material, a carbon-based material, and roseki, or comprised of the three component, and one or more selected from the group consisting of an alumina-based material, a silicon carbide-based material, a rare-earth element oxide-based material, clay, a high-purity silica-based material containing SiO2 in an amount of 80 mass % or more, a boron compound-based material in an amount of less than 0.3 mass % with respect to 100 mass % of the silicon nitride-based material, and a metal powder in an amount of less than 10 mass % with respect to 100 mass % of the carbon-based material.
    Type: Application
    Filed: October 18, 2007
    Publication date: December 2, 2010
    Applicant: KROSAKIHARIMA CORPORATION
    Inventor: Yutaka Kitazawa
  • Publication number: 20100248929
    Abstract: A ceramic component is provided, including a ceramic body containing silicon carbide, and an oxide layer provided on the ceramic body, the oxide layer being formed by oxidizing the ceramic body in the presence of alumina having a submicron particle size.
    Type: Application
    Filed: June 7, 2010
    Publication date: September 30, 2010
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventor: Raymond H. Bryden
  • Publication number: 20100205920
    Abstract: Continuous ceramic (e.g., silicon carbide) nanofibers (502, 602, 604, 606, 608, 702, 704, 1102, 1104) which are optionally p or n type doped are manufactured by electrospinning a polymeric ceramic precursor to produce fine strands of polymeric ceramic precursor which are then pyrolized. The ceramic nanofibers may be used in a variety of applications not limited to reinforced composite materials (400), thermoelectric generators (600, 700) and high temperature particulate filters (1200).
    Type: Application
    Filed: September 19, 2008
    Publication date: August 19, 2010
    Inventors: Pawel Czubarow, Philip Premysler
  • Patent number: 7732026
    Abstract: A ceramic component is provided, including a ceramic body containing silicon carbide, and an oxide layer provided on the ceramic body, the oxide layer being formed by oxidizing the ceramic body in the presence of alumina having a submicron particle size.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: June 8, 2010
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventor: Raymond H. Bryden
  • Publication number: 20100113249
    Abstract: A batch mixture including ceramic-forming ingredients, a pore former, a binder comprising an ammonium salt of an alkylated cellulose binder, and a liquid vehicle, as defined herein. Also disclosed is a method for producing a ceramic precursor article as defined herein having excellent extrusion properties.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 6, 2010
    Inventors: Patricia Ann Beauseigneur, Kevin Ying Chou