And Silicon Compound Other Than Clay Patents (Class 501/128)
  • Patent number: 10501373
    Abstract: Systems, methods, and other embodiments associated with multi-phase ceramic composites are described herein. Specifically, a multi-phase ceramic composite having a microstructure having at least one solid-state lubricant phase and at least one wear resistant material phase.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: December 10, 2019
    Assignee: United States of America as Represented by the Administrator of National Aeronautics and Space Administration
    Inventors: Frederick Dynys, Ali Sayir
  • Patent number: 10472291
    Abstract: Disclosed herein are green bodies comprising at least one ceramic-forming powder; at least one binder; and at least one cross-linked starch present in an amount of at least about 20% by weight as a super addition. Further disclosed herein is a method of making a porous ceramic body comprising mixing at least one ceramic-forming powder, at least one solvent such as water, at least one binder, and at least one cross-linked starch present in an amount of about 20% by weight as a super addition to form a batch composition; extruding the batch composition to form a green body; drying the green body; and firing the green body to form a porous ceramic body. Also disclosed herein are methods of screening a green body for making a porous ceramic body.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: November 12, 2019
    Assignee: Corning Incorporated
    Inventors: Mark Alan Lewis, Pascale Oram, Cameron Wayne Tanner, Elizabeth Marie Vileno
  • Patent number: 10308789
    Abstract: A lightweight ablator formulation has been developed which offers superior thermal performance compared to current state of the art ablator formulations. The lightweight ablator formulations described herein typically include at least one endothermically decomposing (energy absorbing) material with a fluxing agent resulting in significantly reduced backface temperature response and a more stable surface. According to one implementation the ablator composition comprises about 30 to about 70 percent by weight of a base silicone resin, about 25 to about 67 percent by weight of a low-density filler, about 3 to about 7 percent by weight of a curing agent and greater than 0 and up to about 10 percent by weight of a boron-containing compound.
    Type: Grant
    Filed: September 1, 2016
    Date of Patent: June 4, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Kelly Jonathan Courter, Patrick Jacob Mobers, Bryan Brewer
  • Patent number: 10295261
    Abstract: A formulation containing polymer, resin and cement combined with aggregate can be used as a gunnable mix that is applied to a surface by being conveyed pneumatically in dry form to a nozzle, where water is added. Polymer in the gunnable mix enables it to adhere and bond to a surface, such as carbon brick, of a lining of a vessel used for the containment of molten metals. The formulation may be used, for example, to repair and protect blast furnace hearth linings.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: May 21, 2019
    Assignee: VESUVIUS U S A CORPORATION
    Inventor: Ryan Hershey
  • Patent number: 10227780
    Abstract: A roofing article comprising (i) an asphaltic substrate; and (ii) a plurality of mullite-containing granules disposed on a surface of the substrate, where said mullite-containing granules include a mullite concentration of at least 35 wt % and at most 63 wt % as determined by quantitative x-ray diffraction.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: March 12, 2019
    Assignee: Firestone Building Products Co., LLC
    Inventor: Wensheng Zhou
  • Patent number: 10184194
    Abstract: Knit fabrics having ceramic strands, thermal protective members formed therefrom and to their methods of construction are disclosed. Methods for fabricating thermal protection using multiple materials which may be concurrently knit are also disclosed. This unique capability to knit high temperature ceramic fibers concurrently with a load-relieving process aid, such as an inorganic or organic material (e.g., metal alloy or polymer), both small diameter wires within the knit as well as large diameter wires which provide structural support and allow for the creation of near net-shape performs at production level speed. Additionally, ceramic insulation can also be integrated concurrently to provide increased thermal protection.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: January 22, 2019
    Assignee: THE BOEING COMPANY
    Inventors: Christopher P. Henry, Tiffany A. Stewart, Bruce Huffa
  • Patent number: 10167233
    Abstract: A sintered refractory product having the form of a block and consisting of a granulate formed by all the grains having a size larger than 100 ?m, referred to as “coarse grains”, and a matrix binding the coarse grains and consisting of the grains having a size smaller than or equal to 100 ?m, the granulate representing between 45% and 90% by mass of the product, the product having a composition such that, in a mass percentage based on the oxides: Al2O3>80%, SiO2<15%, Na2O<0.15%, Fe2O3<0.05%, CaO<0.1%, the other oxides forming the remainder up to 100%, and the Na2O content in the matrix being greater than 0.010%, in a mass percentage based on the mass of the product.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: January 1, 2019
    Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
    Inventors: Laurie San-Miguel, Fabiano Rodrigues, Christian His, Thibault Champion
  • Patent number: 10150900
    Abstract: A ceramic shaped abrasive particle bounded by a base surface having a perimeter, contiguous sidewalls abutting the perimeter, and a multifaceted surface comprising contiguous facets. Each of the contiguous sidewalls abuts the perimeter, and collectively the contiguous sidewalls abut the perimeter in its entirety. Adjacent pairs of the contiguous sidewalls abut each other along respective corner edges. The multifaceted surface is spaced apart from the base surface by the contiguous sidewalls. At least one V-shaped groove extends from one of the corner edges across the multifaceted surface to one of the contiguous sidewalls that does not contact that corner edge. Less than ten percent of the multifaceted surface area is parallel to the base surface. Pluralities of the shaped abrasive particles and coated abrasive articles including them are also disclosed.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: December 11, 2018
    Assignee: 3M Innovative Properties Company
    Inventor: Negus B. Adefris
  • Patent number: 9827553
    Abstract: To provide an alumina-based fibrous mass having a high areal pressure and is usable as a holding material for an exhaust gas cleaners and a production process thereof; the alumina-based fibrous mass has a chemical composition containing an Al2O3 in an amount of 70% or more and less than 90% and having a total pore volume of 0.0055 mL/g or less.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: November 28, 2017
    Assignees: DENKA COMPANY LIMITED, SAFFIL LIMITED
    Inventors: Yasutaka Ohshima, Masaaki Watanabe, Masanori Hisamoto, Ryoetsu Yoshino, Kazutaka Fujita, Masataka Eguchi, Adam Kelsall, Kelvin Weeks, Jonathan Cross
  • Patent number: 9580348
    Abstract: The production of a quartz glass grit comprises the granulation of pyrogenetically produced silicic acid, and the formation of a SiO2 granulate and the vitrification of the SiO2 granulate using a treatment gas, which contains at least 30% by volume of helium and/or hydrogen. Said process is time consuming and cost intensive.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: February 28, 2017
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventors: Walter Lehmann, Achim Hofmann, Thomas Kayser, Martin Arndt
  • Patent number: 9418884
    Abstract: An electrostatic chuck includes a placing stage formed from a ceramic including aluminum oxide and yttrium oxide, and an electrostatic electrode arranged in the placing stage, wherein a content rate of the yttrium oxide is 0.5 wt % to 2.0 wt %. Preferably, the electrostatic chuck is used while being heated at a temperature of 100° C. to 200° C.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: August 16, 2016
    Assignee: SHINKO ELECTRIC INDUSTRIES CO., LTD.
    Inventors: Masakuni Miyazawa, Kazuyoshi Miyamoto
  • Patent number: 9272956
    Abstract: A method for improving the thermo-mechanical properties of an aluminum-titanate composite, the composite including at least one of strontium-feldspar, mullite, cordierite, or a combination thereof, including: combining a glass source and an aluminum-titanate source into a batch composition; and firing the combined batch composite composition to produce the aluminum-titanate composite. Another method for improving the thermo-mechanical properties of the composite dips a fired composite article into phosphoric acid, and then anneal the dipped composite article. The resulting composites have a thin glass film situated between the ceramic granules of the composite, which can arrest microcrack propagation.
    Type: Grant
    Filed: May 27, 2011
    Date of Patent: March 1, 2016
    Assignee: Corning Incorporated
    Inventors: Monika Backhaus-Ricoult, Christopher Raymond Glose
  • Patent number: 9249043
    Abstract: A refractory object can include at least approximately 10 wt % Al2O3 and at least approximately 1 wt % SiO2. In an embodiment, the refractory object can include an additive. In a particular embodiment, the additive can include TiO2, Y2O3, SrO, BaO, CaO, Ta2O5, Fe2O3, ZnO, or MgO. The refractory object can include at least approximately 3 wt % of the additive. In an additional embodiment, the refractory object can include no greater than approximately 8 wt % of the additive. In a further embodiment, the creep rate of the refractory object can be at least approximately 1×10?6 h?1. In another embodiment, the creep rate of the refractory object can be no greater than approximately 5×10?5 h?1. In an illustrative embodiment, the refractory object can include a glass overflow trough or a forming block.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: February 2, 2016
    Assignee: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: Olivier Citti, Julien P. Fourcade, Andrea L. Kazmierczak
  • Patent number: 9242901
    Abstract: Disclosed is a refined white ceramic material, which belongs to the field of ceramic materials for component packaging, and comprises the following raw materials by weight in percentage: aluminum oxide 87-93, magnesium oxide 0.8-5, silicon dioxide 1-6, calcium oxide 0.6-4, titanium dioxide 0.01-0.5, and zirconium dioxide 0.5-3. The method for preparing same comprises: (1) washing aluminum oxide grinding balls and a ball-milling tank, and drying for later use; (2) weighing a solvent NP-10 of 0.5-4 by weight in percentage, and adding the solvent into the ball-milling tank; (3) weighing raw materials, adding the raw materials into the ball-milling tank, and performing ball milling for 72±0.5 h. By means of the refined white ceramic material of the present invention, the obtained ceramic grains have even sizes, small surface roughness, and high fracture resistance performance of ceramic body.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: January 26, 2016
    Assignee: THE 13TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
    Inventors: Hongyu Zheng, Pengyuan Shi, Huajiang Jin, Caihua Ren, Bingqu Zhang, Jinli Zhang
  • Patent number: 9190096
    Abstract: Disclosed is a method for producing a glass substrate, which involves a first polishing step and a second polishing step both for polishing the surface of the glass substrate with a polishing solution containing a polishing agent. The method is characterized by additionally involving a heating step for heating the glass substrate, wherein the heating step is carried out after the first polishing step and before the second polishing step.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: November 17, 2015
    Assignee: HOYA CORPORATION
    Inventors: Kenichi Sasaki, Hideki Kawai
  • Patent number: 9145510
    Abstract: Nano-sized clay minerals enhance the viscosity of aqueous fluids that have increased viscosity due to the presence of viscoelastic surfactants (VESs). In one non-limiting theory, the nano-sized phyllosilicate mineral viscosity enhancers associate, link, connect, or relate the VES elongated micelles into associations thereby increasing the viscosity of the fluid, possibly by mechanisms involving chemisorption or surface charge attractions. The nano-sized phyllosilicate mineral particles, also called clay mineral nanoparticles, may have irregular surface charges. The higher fluid viscosity is beneficial to crack the formation rock during a fracturing operation, to reduce fluid leakoff, and to carry high loading proppants to maintain the high conductivity of fractures.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: September 29, 2015
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: James B. Crews, Tianping Huang
  • Patent number: 9068240
    Abstract: The invention relates to a method for thermally processing ?-spodumene, i.e. lithium aluminum silicate, by which treatment it is transformed into ?-spodumene, which is more advantageous for further processing; in the method, concentrate or ore with a grain size of 20-1,000 ?m is processed in a fluidized bed reactor, at a temperature of 800-1,000° C., by using an oxygenous gas as the fluidizing gas.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: June 30, 2015
    Assignee: OUTOTEC OYJ
    Inventor: Maija-Leena Metsärinta
  • Patent number: 9056802
    Abstract: Methods or making an environmental barrier coating using a sintering aid including combining at least water, a primary transition material selected from mullite, BSAS, or a mullite/BSAS mixture, and a slurry sintering aid to produce a transition layer slurry; applying the transition layer slurry to a ceramic component; combining at least water, and a primary outer material of BSAS to produce an outer layer slurry; applying the outer layer slurry to the component having the applied transition layer slurry; and sintering the component to produce the environmental barrier coating having at least a transition layer and an outer layer where the transition layer comprises a porosity of from 0% to about 30% by volume of the transition layer, and the outer layer comprises a porosity of from 0% to about 15% by volume of the outer layer.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: June 16, 2015
    Assignee: General Electric Company
    Inventors: Glen Harold Kirby, Brett Allen Boutwell
  • Patent number: 9040442
    Abstract: The present description relates to a refractory composition including 70 weight percent to 98 weight percent particulate refractory material and 2 weight percent to 30 weight percent of a binder phase including reactive filler and a binder, the binder phase substantially includes solely reactive andalusite as reactive filler.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: May 26, 2015
    Assignee: Center For Abrasives and Refractories Research & Development C.A.R.R.D. GmbH
    Inventors: Xiaoyong Xiong, Michael Weissenbacher
  • Patent number: 8999872
    Abstract: Porous composites of acicular mullite and tialite are formed by firing an acicular mullite body in the presence of an oxide of titanium. In some variations of the process, the oxide of titanium is present when the acicular mullite body is formed. In other variations, the oxide of titanium is applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of acicular mullite and tialite alone. Some of the tialite is believed to form at grain boundaries and/or points of intersection between acicular mullite needles, rather than merely coating the needles. The presence of the titanium oxide(s) during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: April 7, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Daniel Grohol, Mark L. Dreibelbis, Michael T. Malanga
  • Publication number: 20150011375
    Abstract: Porous composites of mullite and cordierite are formed by firing an acicular mullite body in the presence of a magnesium source and a silicon source. In some variations of the process, the magnesium and silicon sources are present when the acicular mullite body is formed. In other variations, the magnesium source and the silicon source are applied to a previously-formed acicular mullite body. Surprisingly, the composites have coefficients of linear thermal expansion that are intermediate to those of mullite and cordierite alone, and have higher fracture strengths than cordierite at a similar porosity. Some of the cordierite forms at grain boundaries and/or points of intersection between mullite needles, rather than merely coating the needles. The presence of magnesium and silicon sources during acicular mullite formation does not significantly affect the ability to produce a highly porous network of mullite needles.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 8, 2015
    Inventors: Daniel Grohol, Chan Han, Aleksander J. Pyzik
  • 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
  • Patent number: 8853114
    Abstract: The invention is to provide an aluminum titanate-based ceramics showing a good mechanical strength. The invention is an aluminum titanate-based ceramics obtained by firing a starting material mixture which contains a titanium element and an aluminum element, and further contains a chromium element and/or a tungsten element. Preferably, a content of a chromium source which contains the chromium element is from 0.001 to 5 parts by mass, and a content of a tungsten source which contains the tungsten element is from 0.001 to 1.0 part by mass relative to 100 parts by mass of the starting material mixture.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: October 7, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kentaro Iwasaki, Akiyoshi Nemoto
  • Patent number: 8853111
    Abstract: Provided is a refractory filler powder, comprising particles, each of which has precipitates of willemite and gahnite.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: October 7, 2014
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventor: Tomoko Yamada
  • Patent number: 8784979
    Abstract: In a thermally sprayed, gastight protective layer for metal substrates, such as Fe, Ni, Al, Mg and/or Ti, the spray powder for the purpose includes at least two components. The first is a silicate mineral or rock and the second is a metal powder and/or a further silicate mineral or rock. The silicate mineral or rock component in the spray powder has an alkali content of less than 6 percent by weight.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: July 22, 2014
    Assignee: Märkisches Werk GmbH
    Inventor: Vadim Verlotski
  • Patent number: 8778819
    Abstract: Disclosed is a dielectric ceramic composition which has high dielectric constant and suppressed low thermal expansion coefficient. Also disclosed are a multilayer dielectric substrate using the dielectric ceramic composition, and an electronic component. Specifically disclosed is a dielectric ceramic composition which contains an ATiO3 (wherein A represents either Ca and/or Sr) phase and an AAl2Si2O8 phase, said dielectric ceramic composition being characterized in that the dielectric constant is not less than 10 at 3 GHz and the average thermal expansion coefficient over the temperature range of 40-600° C. is less than 7 ppm/° C.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: July 15, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Junichi Masukawa, Koji Ichikawa
  • Patent number: 8759240
    Abstract: The disclosure relates to ceramic-body-forming batch materials comprising at least one pore former and inorganic batch components comprising at least one silica source having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods. The disclosure additionally relates to methods for reducing pore size variability in ceramic bodies and/or reducing process variability in making ceramic bodies.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: June 24, 2014
    Assignee: Corning Incorporated
    Inventors: Daniel Edward McCauley, Anthony Nicholas Rodbourn, Patrick David Tepesch, Christopher John Warren
  • Patent number: 8735309
    Abstract: A mullite-based body including mullite, alumina, and titanium manganese oxide is disclosed. The mullite-based sintered body includes mullite of 79.3 to 85.2 mass %, alumina of 14.2 to 19.8 mass % and MnTiO3 of 0.6 to 1.1 mass %. The mullite-based sintered body has a relative density of 96% or higher. A circuit board and a probe card are also disclosed. The circuit board includes the mullite-based sintered body. The probe card includes the wiring substrate; a surface wiring layer on a surface of the wiring substrate; and a measuring terminal electrically coupled to the surface wiring layers for measuring the electrical characteristics of an electric circuit.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: May 27, 2014
    Assignee: Kyocera Corporation
    Inventors: Yuya Furukubo, Toru Nakayama
  • Publication number: 20140128242
    Abstract: An object of the invention is to provide, in porous thermal insulating firebricks formed by molding and drying bubble-containing slurry obtained by foaming slurry containing a fire resistant powder and water, a thermal insulating firebrick superior in thermal insulating property in spite of the same composition and porosity. A porous thermal insulating firebrick formed by molding and drying bubble-containing slurry obtained by foaming slurry containing a fire resistant powder with a heat resistant temperature of 1,000° C. or higher and water has the porosity of 60% or more, and 80% or more volume with respect to a total pore volume of the inside of the thermal insulating firebrick consists of pores having a pore size of 200 ?m or less.
    Type: Application
    Filed: June 4, 2012
    Publication date: May 8, 2014
    Applicant: HINOMARU YOGYO CO., LTD.
    Inventors: Daisuke Taniyama, Yasunari Nagasaki, Akira Terasawa
  • Patent number: 8652982
    Abstract: Provided is a mono- or multilayer ceramic substrate which exhibits a high flexural strength. The substrate contains a sintered ceramic which includes respective crystal phases of quartz, alumina, fresnoite, sanbornite, and celsian, in which the relationship between the diffraction peak intensity A in the (201) plane of the fresnoite and the diffraction peak intensity B in the (110) plane of the quartz, measured by a powder X-ray diffractometry in the range of the diffraction peak angle 2?=10 to 40°, is A/B?2.5. The fresnoite crystal phase preferably has an average crystal grain size of 5 ?m or less. In firing to obtain this ceramic sintered body, the maximum temperature falls within the range of 980 to 1000° C.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: February 18, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Machiko Motoya, Takahiro Sumi, Tsuyoshi Katsube, Yoichi Moriya
  • Publication number: 20140024520
    Abstract: The present description relates to a refractory composition including 70 weight percent to 98 weight percent particulate refractory material and 2 weight percent to 30 weight percent of a binder phase including reactive filler and a binder, the binder phase substantially includes solely reactive andalusite as reactive filler.
    Type: Application
    Filed: March 20, 2012
    Publication date: January 23, 2014
    Applicant: CENTER FOR ABRASIVES AND REFRACTORIES RESEARCH & DEVELOPMENT C.A.R.R.D. GMBH
    Inventors: Xiaoyong Xiong, Michael Weissenbacher
  • 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: 8614157
    Abstract: Sintered, substantially round and spherical particles and methods for producing such sintered, substantially round and spherical particles from an alumina-containing raw material and a metal oxide sintering aid. The alumina-containing raw material contains from about 40% to about 55% alumina. Methods for using such sintered, substantially round and spherical particles in hydraulic fracturing operations.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: December 24, 2013
    Assignee: CARBO Ceramics, Inc.
    Inventors: William H. Pope, Chad Cannan, Jimmy C. Wood
  • Patent number: 8518528
    Abstract: A ceramic foam filter for molten aluminum alloys comprising an alumina silicate rich core and a boron glass shell and a chemical composition comprising: 20-70 wt % Al2O3, 20-60 wt % SiO2, 0-10 wt % CaO, 0-10 wt %; MgO and 2-20 wt % B2O3.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: August 27, 2013
    Assignee: Porvair PLC
    Inventors: Feng Chi, David P. Haack, Leonard S. Aubrey
  • 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
  • Publication number: 20130183531
    Abstract: An article which includes a structure of a ceramic material that has a composition SiOxMzCy, where Si is silicon, O is oxygen, M is at least one metal and C is carbon and wherein x<2, y>0 and z<1 and x and z are non-zero.
    Type: Application
    Filed: January 18, 2012
    Publication date: July 18, 2013
    Inventors: Wayde R. Schmidt, Paul Sheedy, Tania Bhatia Kashyap, Daniel G. Goberman, Xia Tang
  • Patent number: 8486851
    Abstract: A process for manufacturing a sintered ceramic composite, based on silicon nitride and ?-eucryptite, includes a step of producing a first powder blend, consisting of a powder of silicon nitride in crystalline form and a powder of a first lithium aluminosilicate in crystalline form, the composition of which is the following: (Li2O)x(Al2O3)y(SiO2)z, the lithium aluminosilicate composition being such that the set of molar fractions (x,y,z) is different from the set (1,1,2).
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: July 16, 2013
    Assignee: Thales
    Inventors: Laurent Blanchard, Gilbert Fantozzi, Aurélien Pelletant, Helen Reveron, Jérôme Chevalier, Yann Vitupier
  • Patent number: 8481439
    Abstract: Because fracture toughness and translucency of translucent colored alumina sintered body of the past were low, the alumina sintered body was not suitable for uses such as dental materials, which require high toughness. The present invention relates to providing a translucent colored alumina sintered body that contains transition metal oxides, and with which the fracture toughness is 4.5 MPa·m0.5 or more and the maximum value of total forward transmittance (sample thickness 1 mm) to a wavelength of 300-800 nm is 60% or more. The present invention relates to obtaining a sintered body, at least 20% of which contains anisotropic grains with a long axis length of 10 ?m or greater and an aspect ratio of 1.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: July 9, 2013
    Assignee: Tosoh Corporation
    Inventors: Isao Yamashita, Koji Tsukuma
  • Patent number: 8481441
    Abstract: An anodic bondable low-temperature fired porcelain having high-strength and low-thermal-expansion, wherein a conductive ion during anodic bonding is an Li ion, containing a complex oxide having a composition represented by the following formula: (1?x)(?Li2O-?MgO-?Al2O3-?Si2O2).xBi2O3??(1) where x represents a mass ratio of 0.01 to 0.1, and ?, ?, ? and ? have a molar ratio of 2 to 5:1 to 2:1 to 2:7 to 17.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: July 9, 2013
    Assignee: Nikko Company
    Inventors: Mamoru Mohri, Naoki Kidani
  • Publication number: 20130136893
    Abstract: Disclosed are ceramic articles comprising ceramic honeycomb bodies and an aqueous composition, for example in the form of a cold-set plug, as well as processes for preparing ceramic articles and processes for making an aqueous composition for use with ceramic articles, for example as a cold-set plug composition.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Inventors: Keith Norman Bubb, Anthony Joseph Cecce, Thomas Richard Chapman
  • Patent number: 8450227
    Abstract: The disclosure relates to ceramic-body-forming batch materials comprising at least one pore former and inorganic batch components comprising at least one silica source having a specified particle size distribution, methods of making ceramic bodies using the same, and ceramic bodies made in accordance with said methods. The disclosure additionally relates to methods for reducing pore size variability in ceramic bodies and/or reducing process variability in making ceramic bodies.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: May 28, 2013
    Assignee: Corning Incorporated
    Inventors: Daniel Edward McCauley, Anthony Nicholas Rodbourn, Patrick David Tepesch, Christopher John Warren
  • Patent number: 8431505
    Abstract: An alumina sintered body comprises alumina crystals as a main phase and a grain boundary phase made up of crystalline Y2Si2O7 and amorphous SiO2 at grain boundaries of the alumina crystals wherein when the alumina sintered body is taken as 100 wt %, the high melting phase is present in the range of from 0.1 wt % to 15 wt %. There is also provided a method for preparing the alumina sintered body, which method comprising a first mixing step P1 of mixing, at least, a yttria powder having an average particle size of 60 to 100 nm and a silica powder having a given average particle size to provide a mixed slurry and a second mixing step of further mixing an alumina powder having an average particle size of 0.5 to 1.0 ?m in the mixed slurry.
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: April 30, 2013
    Assignees: Nippon Soken, Inc., Denso Corporation
    Inventors: Itsuhei Ogata, Hirofumi Suzuki, Hiroshi Araki, Yasuki Aoi
  • Publication number: 20130102453
    Abstract: Provided is a refractory filler powder, comprising particles, each of which has precipitates of willemite and gahnite.
    Type: Application
    Filed: April 8, 2011
    Publication date: April 25, 2013
    Inventor: Tomoko Enomoto
  • Patent number: 8394732
    Abstract: Disclosed is the preparation of sintered cordierite-based glass-ceramic bodies via a procedure which uses three all natural starting materials which are white sand, kaolin clay and magnesite. These three raw materials are combined in relative amounts which form, upon subsequent mixing and heating, a specific mixture of oxides of silicon, aluminum and magnesium. Upon melting at 1500-1550° C., this combination of raw materials forms transparent brown glass which after solidification by quenching is then crushed and reduced to grains having a median particle size less than 65 microns. These brown glass grains are consolidated, for example by compaction, to form a green body for sintering. Sintering of the green body at temperatures between about 1000° C. and 1375° C. for from 2 to 5 hours produces glass-ceramic bodies containing a polycrystalline material which comprises mostly material of the cordierite crystal structure.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: March 12, 2013
    Assignee: King Abdulaziz City for Science and Technology
    Inventors: Omar A. Alharbi, Esmat M. Hamzawy
  • Patent number: 8389430
    Abstract: Porous spodumene-cordierite honeycomb bodies of high strength but low volumetric density, useful for the manufacture of close-coupled engine exhaust converters, gasoline engine particulate exhaust filters, and NOx integrated engine exhaust filters, are provided through the reactive sintering of batches comprising sources of magnesia, alumina and silica together with a lithia source, such as a spodumene or petalite ore.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: March 5, 2013
    Assignee: Corning Incorporated
    Inventors: Gregory Albert Merkel, Cameron Wayne Tanner
  • Patent number: 8383533
    Abstract: A low-temperature sintering ceramic material showing little variation in composition after firing, realizing high bending strength in a sintered body, and capable of forming a reliable ceramic substrate showing high peel strength of a surface electrode includes a main constituent ceramic material containing about 48 weight % to about 75 weight % in terms of SiO2 of Si, about 20 weight % to about 40 weight % in terms of BaO of Ba, and about 5 weight % to about 20 weight % in terms of Al2O3 of Al, and an accessory constituent ceramic material containing, relative to 100 parts by weight of the main constituent ceramic material, about 2 parts to about 10 parts by weight in terms of MnO of Mn and about 0.1 parts to about 10 parts by weight respectively in terms of TiO2 and Fe2O3 of at least one selected from Ti and Fe, and substantially not includes both Cr oxide and B oxide.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: February 26, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tsuyoshi Katsube, Machiko Motoya
  • Patent number: 8361918
    Abstract: To provide a ceramic composition not only having little compositional variation after burning, but a high flexural strength of the sintered body, and a high Q value in a microwave band, a ceramic composition used for forming a ceramic layer of a multi-layer ceramic substrate contains 47.0 to 67.0 wt. % of SiO2, 21.0 to 41.0 wt. % of BaO, and 10.0 to 18.0 wt. % of Al2O3, and contains as a first additive, 1.0 to 5.0 parts by weight of CeO2, relative to a total of 100 parts of SiO2, BaO and Al2O3, and as a second additive, 2.5 to 5.5 parts by weight of MnO, relative to a total of 100 parts by weight of SiO2, BaO, Al2O3 and CeO2, and is substantially free of Cr. As a third additive, at least one of Zr, Ti, Zn, Nb, Mg and Fe, and as a fourth additive, a Co component and/or a V component, may be contained.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: January 29, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Machiko Motoya, Tsutomu Tatekawa, Jun Urakawa, Tsuyoshi Katsube, Yoichi Moriya
  • Publication number: 20120311985
    Abstract: The present invention is a process for producing an aluminum titanate-based ceramics comprising a step of firing a starting material mixture containing a titanium source powder, an aluminum source powder, and a copper source.
    Type: Application
    Filed: December 24, 2010
    Publication date: December 13, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kentaro Iwasaki, Tetsuro Tohma
  • Publication number: 20120276387
    Abstract: It is provided a high-temperature assembly that is favorable for increasing the sealing property at the boundary area between a first member and a second member that are used in a high-temperature environment. Further it is provided a method for producing the high-temperature assembly, and a heat-resistant sealing material. The heat-resistant sealing material, which is disposed at the boundary area between a first member and a second member, comprises ceramic particles made of a plurality of materials which form a ceramics the volume of which increases when the ceramics is synthesized.
    Type: Application
    Filed: November 15, 2010
    Publication date: November 1, 2012
    Applicant: TYK CORPORATION
    Inventors: Hirokatsu Hattanda, Tomohiro Yotabun
  • Publication number: 20120277087
    Abstract: Composite bodies made by a silicon metal infiltration process that feature a silicon intermetallic, e.g., a metal silicide. Not only does this give the composite material engineer greater flexibility in designing or tailoring the physical properties of the resulting composite material, but the infiltrant also can be engineered compositionally to have much diminished amounts of expansion upon solidification, thereby enhancing net-shape-making capabilities. These and other consequences of engineering the metal component of composite bodies made by silicon infiltration permit the fabrication of large structures of complex shape.
    Type: Application
    Filed: March 14, 2012
    Publication date: November 1, 2012
    Inventors: Michael K. Aghajanian, Allyn L. McCormick, Michael S. Epperly