Aluminum Compound Containing Patents (Class 501/153)
  • Patent number: 10392295
    Abstract: The present invention relates to a composite material, particularly a composite material for ceramic tiles, stone cladding, surface tops (e.g. worktops), and the like. The composite materials are typically derived from waste products. The composite materials of the present invention are formed from a glass component and a non-glass mineral component (e.g. ceramics and/or glaze). Generally the composite materials do not require any binders (especially synthetic binders) to hold the materials together. Therefore, the composite materials and products made therefrom are typically recyclable.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: August 27, 2019
    Assignee: Alusid Limited
    Inventors: Alasdair Bremner, David Stuart Binns
  • Patent number: 10354782
    Abstract: A method of manufacturing an insulator for a spark plug comprises the steps of combining at least two raw materials to form a powdered insulator formulation, spray drying the powdered insulator formulation, and pressing the powdered insulator formulation to create an insulator blank. The method further includes the steps of bisque firing the insulator blank, grinding the bisque fired insulator blank to form the insulator, and sintering the insulator.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: July 16, 2019
    Assignee: Fram Group IP, LLC
    Inventors: Jing Zheng, Danny R. Overton
  • Patent number: 10307889
    Abstract: A coated abrasive article includes a backing, a make layer, crushed abrasive particles, and a size layer. The crushed abrasive particles include: 35 to 100 weight percent of initial crushed abrasive particles having a first composition and first size grade, wherein a majority of the initial crushed abrasive particles are platey crushed abrasive particles, and wherein each platey crushed abrasive particle has a respective length, width, and thickness; and 0 to 65 weight percent of crushed filler particles having a second composition and a second size grade. The first and second compositions and/or size grades are different. The coated abrasive article has a direction of intended use, a majority of the platey crushed abrasive particles of the coated abrasive article are positioned with their thickness oriented substantially parallel to the direction of intended use. A method of making the coated abrasive article is also disclosed.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: June 4, 2019
    Assignee: 3M Innovative Properties Company
    Inventor: Steven J. Keipert
  • Patent number: 10124319
    Abstract: If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm?3 or more and a specific surface area of 5 m2g?1 or more is produced by: the following steps: (1) forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: November 13, 2018
    Assignees: TOKYO INSTITUTE OF TECHNOLOGY, JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Hideo Hosono, Michikazu Hara, Yasunori Inoue, Masaaki Kitano, Fumitaka Hayashi, Toshiharu Yokoyama, Satoru Matsuishi, Yoshitake Toda
  • Patent number: 10115494
    Abstract: A composite body including a substrate and a forming portion which is composed of a composite phase containing a perovskite oxide and a metal oxide different from the perovskite oxide and which is formed on the substrate. The composite body may be a composite body manufactured by a manufacturing method including a forming step of firing in an oxidizing atmosphere, a laminated body in which an inorganic raw material powder containing a compound powder and a metal powder is disposed on a substrate so as to form a forming portion composed of a composite phase containing a perovskite oxide and a metal oxide different from the perovskite oxide on the substrate.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: October 30, 2018
    Assignee: NGK Insulators, Ltd.
    Inventors: Yunie Izumi, Yoshimasa Kobayashi
  • Patent number: 10062470
    Abstract: A composite body including a substrate and a forming portion which is composed of a composite phase containing a perovskite oxide and a metal oxide different from the perovskite oxide and which is formed on the substrate. The composite body may be a composite body manufactured by a manufacturing method including a forming step of firing in an oxidizing atmosphere, a laminated body in which an inorganic raw material powder containing a compound powder and a metal powder is disposed on a substrate so as to form a forming portion composed of a composite phase containing a perovskite oxide and a metal oxide different from the perovskite oxide on the substrate.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: August 28, 2018
    Assignee: NGK Insulators, Ltd.
    Inventors: Yunie Izumi, Yoshimasa Kobayashi
  • Patent number: 9981882
    Abstract: The present invention relates to a porous aggregate, comprising Al2O3, SiO2 and optionally Fe2O3, having a d50 of equivalent pore diameter between 1 ?m or more and 50 ?m or below and a total porosity between 20% and 60%, for use in the formation of monolithic refractories. Also part of the invention is a method of formation for said aggregates, their use in the formation of monolithic refractories and monolithic refractories comprising such aggregates.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: May 29, 2018
    Assignee: Calderys France
    Inventors: Jérôme Soudier, Camille Dromain
  • Patent number: 9802143
    Abstract: A ceramic filter is provided with a porous substrate 3 “made of ceramic and having partition walls 1 separating and forming a plurality of cells 2 extending from one end face 11 to the other end face 12”, a separation membrane 21 “made of ceramic and disposed on wall surfaces of the cells 2”, and glass seals 31 disposed on the one end face 11 and on the other end face 12 “so as not to cover openings of the cells 2”. Ceramic particles having a thermal expansion coefficient of 90 to 110% of that of glass contained in the glass seals 31 are dispersed in the glass seals 31. There is provided a ceramic filter usable for a long period of time in high temperature conditions.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: October 31, 2017
    Assignee: NGK Insulators, Ltd.
    Inventors: Makoto Teranishi, Hideyuki Suzuki, Manabu Isomura
  • Patent number: 9657377
    Abstract: Provided are an aluminum alloy and a production method thereof. In accordance with an embodiment, an aluminum-based mother material is melted to form a molten metal. An additive including silicon oxide is added to the molten metal. At least a portion of the silicon oxide is exhausted in the molten metal. The molten metal is cast.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: May 23, 2017
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Shae-Kwang Kim, Young-Ok Yoon, Jeong-Ho Seo
  • Patent number: 9543184
    Abstract: The present invention is an electrostatic chuck including a ceramic base body and an adsorption electrode provided inside of or on the lower surface of the ceramic base body and having a portion where a Mn content is 1×10?4% by mass or less in a region from the upper surface of the ceramic base body to the adsorption electrode.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: January 10, 2017
    Assignee: KYOCERA CORPORATION
    Inventor: Hiroshi Ono
  • Patent number: 9409822
    Abstract: The present invention relates to a composition for forming a friable-resistant dielectric porcelain material. The present invention also relates to a friable-resistant dielectric porcelain material formed from the composition of the present invention, a method of making a friable-resistant dielectric porcelain material, a friable-resistant dielectric porcelain material formed by the method of the present invention, a dielectric porcelain material comprising a particular composition, and a system for producing ozone using the dielectric porcelain material of to the present invention.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: August 9, 2016
    Assignee: Victor Insulators, Inc.
    Inventor: Ira Knickerbocker
  • Patent number: 9108887
    Abstract: Provided is a process for producing a ceramic for a heat-radiating member. The process includes providing as a raw material an alumina powder having an alumina (Al2O3) content of at least 99.5 mass % and an average particle size of from 0.2 to 1 ?m, and granulating the powder into a granular form ranging from 50 to 100 ?m, pressing the raw material which has been obtained in the granulation step and which includes granular alumina, and heating a green compact in an air atmosphere at a firing temperature of from 1,480 to 1,600° C. to obtain a sintered body. Also provided is a process for producing a ceramic for a heat-radiating member, the ceramic being a sintered alumina body which has high thermal conductivity, efficient heat dissipation, excellent mechanical strength and thermal shock resistance and which is usable for cooling applications at heat generating areas of electronic devices and equipment.
    Type: Grant
    Filed: May 30, 2011
    Date of Patent: August 18, 2015
    Assignee: NISHIMURA PORCELAIN CO., LTD.
    Inventors: Takeo Nishimura, Nobuyuki Ishida
  • Publication number: 20150136452
    Abstract: The high-withstanding-voltage member includes an alumina sintered compact containing alumina as a main crystal. Furthermore, the alumina sintered compact exhibits a peak intensity of 5000 or less at a wavelength of about 330 nm when measured by a cathode luminescence method.
    Type: Application
    Filed: May 31, 2013
    Publication date: May 21, 2015
    Inventors: Satoshi Toyoda, Hidehiro Takenoshita
  • Publication number: 20150136350
    Abstract: The object of the present invention is to provide an embedding material composition for casting that makes it possible to conduct a favorable casting in the case where casting is conducted using a resin pattern that is different from a conventional wax pattern in disappearance temperature and disappearance behaviors through “rapid heating” excellent in treatment efficiency. The present invention relates to an embedding material composition for casting not using a heat-expandable refractory material as a main component, comprising: a binder; and a non-heat-expandable refractory material having an average particle diameter of 5 to 20 ?m as main components, in which a content of the binder is 25 to 40 parts by mass and a content of the non-heat-expandable refractory material is 60 to 75 parts by mass in the case where the total amount of the main components is 100 parts by mass, and the present invention also relates to a casting process using the embedding material composition for casting.
    Type: Application
    Filed: June 17, 2013
    Publication date: May 21, 2015
    Applicant: Yoshino Gypsum Co., Ltd.
    Inventors: Emi Mamada, Kenichi Sugano, Masato Yoshikane
  • Publication number: 20150125361
    Abstract: A permanent filter for a medical sterilization container is provided. The permanent filter is made from a ceramic. The ceramic is made from globular substrate grains. A medical sterilization container is also provided, in particular for receiving and storing objects to be sterilized, having a container bottom part and a container top part for closing the container bottom part in a closed position of the sterilization container. At least one of the container bottom part and the container top part have a gas exchange orifice, which is closed with a permanent filter. The permanent filter is made from a ceramic and the ceramic is made from globular substrate grains. In addition, a method is provided for producing a permanent filter for a medical sterilization container. The permanent filter is produced from a ceramic material by sintering. Globular substrate grains are used as the ceramic material.
    Type: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Inventors: Dieter Weisshaupt, Thomas Weik, Stefan Schuster, John Gray-Dreizler, Wolfgang Burger
  • Patent number: 9022226
    Abstract: A separation membrane according to the present invention is characterized by having a porous tube containing an alumina as a main component and an attachment member disposed in a connection position of the porous tube, wherein the porous tube and the attachment member are bonded by a ceramic oxide-based bonding agent containing 17 to 48 wt % of SiO2, 2 to 8 wt % of Al2O3, 24 to 60 wt % of BaO, and 0.5 to 5 wt % of ZnO as essential components and containing at least one of La2O3, CaO, and SrO, and a thin zeolite layer is formed on a surface of the porous tube. The attachment member is bonded to the porous tube before the formation of the zeolite layer. Therefore, the bonding agent can have a melting temperature higher than 600° C., which is the upper heatproof temperature limit of the zeolite. Thus, the ceramic oxide material for the bonding agent can be selected from a wider range of compositions such as glass compositions (without limitations on the glass softening temperature).
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: May 5, 2015
    Assignee: Hitachi Zosen Corporation
    Inventors: Kazuhiro Yano, Yoshinobu Takaki
  • Patent number: 9024352
    Abstract: To provide a glass ceramic body wherein the deterioration of the reflectance due to black coloration is suppressed, and the unevenness of the firing shrinkage is suppressed. A glass ceramic body comprising a glass matrix and alumina particles dispersed therein, wherein the glass matrix is not crystallized, a ceramic part composed of the dispersed alumina particles has an ?-alumina crystal structure and a crystal structure other than the ?-alumina crystal structure.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: May 5, 2015
    Assignee: Asahi Glass Company, Limited
    Inventors: Seigo Ohta, Masamichi Tanida
  • Publication number: 20150119230
    Abstract: A composition may be suitable for firing to obtain a ceramic material therefrom. A green body or ceramic material may be formed from the composition. Ballistic armour may be formed from the composition or may include the ceramic material.
    Type: Application
    Filed: June 21, 2013
    Publication date: April 30, 2015
    Inventors: Gilles Gasgnier, Wen Zhang
  • Publication number: 20150119229
    Abstract: Provided is a method of producing an aluminum composite material, the method including: a decalcification treatment step of eluting a calcium oxide component from cement to form decalcified cement having a reduced content of the calcium oxide component; and an aluminum oxide formation step of bringing molten aluminum into contact with the decalcified cement to replace, among metal oxide components contained in the decalcified cement, metal oxide components other than the calcium oxide component, in particular, a silicon dioxide component, with aluminum oxide.
    Type: Application
    Filed: June 19, 2013
    Publication date: April 30, 2015
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hajime Minaki, Yoshiki Wakimoto
  • Patent number: 8993466
    Abstract: The invention relates to an alumina-based opaque ceramic, similar to ruby and having a high toughness. This ceramic comprises, by weight: 0.4% to 5% of at least from one oxide of a metal chosen from chromium, cobalt, nickel, manganese, vanadium, titanium and iron; 0.00080 to 0.5% of magnesium oxide; and 0.05 to 6% of at least one oxide of an element of the group of rare earths. The ceramic is applicable in particular in jewelry, fine jewelry and watch making. The invention also relates to methods of preparing such a ceramic.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: March 31, 2015
    Assignee: Rolex S.A.
    Inventors: Ollivier Pujol, Isabelle Rigot
  • Publication number: 20150078912
    Abstract: The disclosure relates generally to core compositions and methods of molding and the articles so molded. More specifically, the disclosure relates to core compositions and methods for casting hollow titanium-containing articles, and the hollow titanium-containing articles so molded.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Bernard Patrick BEWLAY, Joan MCKIEVER, Brian Michael ELLIS, Nicholas Vincent MCLASKY
  • Publication number: 20150056471
    Abstract: Described herein are nanofibers and methods for making nanofibers that have a plurality of pores. The pores have of any suitable size or shape. In some embodiments the pores are “mesopores”, having a diameter between 2 and 50 nm. In some embodiments, the pores are “ordered”, meaning that they have a substantially uniform shape, a substantially uniform size and/or are distributed substantially uniformly through the nanofiber. Ordering of the pores results in a high surface area and/or high specific surface area. Ordered pores, without limitation, result in a nanofiber that is substantially flexible and/or non-brittle. The nanofibers and methods for making nanofibers may be used, without limitation, in batteries, capacitors, electrodes, solar cells, catalysts, adsorbers, filters, membranes, sensors, fabrics and/or tissue regeneration matrixes.
    Type: Application
    Filed: February 14, 2013
    Publication date: February 26, 2015
    Applicant: CORNELL UNIVERSITY
    Inventors: Yong Lak Joo, Ulrich Wiesner, Jay Hoon Park
  • Patent number: 8962507
    Abstract: The invention relates to a composition, which comprises a particulate mixture of: (i) 25 to 80% calcined clay; (ii) 5 to 70% fluxing component; and (iii) 5 to 70% filler component.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: February 24, 2015
    Assignee: University of the West of England, Bristol
    Inventors: David Huson, Stephen Hoskins
  • Publication number: 20150037531
    Abstract: Porous aluminum-containing ceramic bodies are treated to form acicular mullite crystals onto the surfaces of their pores. The crystalsare formed by contacting the body with a fluorine-containing gas or a source of both fluorine and silicon atoms to form fluorotopaz at the surface of the pores, and then decomposing the fluorotopaz to form acicular mullite crystals. This process allows the surface area of the ceramic body to be increased significantly while retaining the geometry (size, shape, general pore structure) of the starting body. The higher surface area makes the body more efficient as a particulate filter and also allows for easier introduction of catalytic materials.
    Type: Application
    Filed: November 7, 2012
    Publication date: February 5, 2015
    Inventors: Aleksander J. Pyzik, Nicholas M. Shunkel, Robin P. Ziebarth
  • Publication number: 20150038320
    Abstract: Provided is a method for producing inorganic fiber including: preparing a spinning raw material liquid which comprises an aluminum source, a calcium source, a silicon source and a spinning auxiliary, in which the content of the spinning auxiliary is, in terms of solid matter, 3 parts by mass or more relative to 100 parts by mass of the total of the aluminum source, the calcium source and the silicon source; spinning the spinning raw material liquid by a sol-gel method to obtain crude inorganic fiber; and firing the crude inorganic fiber to produce inorganic fiber that comprises 35 mass % to 88 mass % of Al2O3, 3 mass % to 45 mass % of CaO and 5 mass % to 40 mass % of SiO2 in which the total of Al2O3, CaO and SiO2 is 97 mass % or more of the entire fiber.
    Type: Application
    Filed: January 21, 2013
    Publication date: February 5, 2015
    Inventors: Nobuya Tomosue, Kazutoshi Isomura, Kazutaka Murayama, Kiyoshi Sato
  • Patent number: 8916505
    Abstract: A cordierite material having an increased ?-cordierite phase and a reduced ?-cordierite phase is described. Methods of making the cordierite material are further described, and a proppant containing the cordierite is further described, as well as use of the proppant.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: December 23, 2014
    Assignee: Oxane Materials, Inc.
    Inventor: Robert D. Skala
  • Publication number: 20140364299
    Abstract: A high performance transparent polycrystalline ceramic material is provided. The transparent polycrystalline ceramic material has a nitrogen-containing isotropic lattice structure and having 80% optical transmission at a wavelength between 3.86 and 4.30 microns through said material at 11 mm of thickness.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 11, 2014
    Applicant: Surmet Corporation
    Inventors: Suri A. Sastri, Mohan Babu Ramisetty
  • Patent number: 8901022
    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: Grant
    Filed: December 23, 2010
    Date of Patent: December 2, 2014
    Assignee: Saint0Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Olivier Jean Francy, Eric Jorge
  • 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
  • Publication number: 20140349832
    Abstract: Ceramic nanocomposites and methods for manufacturing the ceramic nanocomposites are disclosed. One method includes introducing to a fired green ceramic body having a ceramic matrix submicron particles having coefficient of thermal expansion lower than the coefficient of thermal expansion of the ceramic matrix and at least one type of location-controlling dopant at an amount that is sufficient to cover the majority of the ceramic matrix grain boundaries. One ceramic nanocomposite includes a ceramic matrix with submicron particles dispersed in the ceramic matrix, the submicron particles having a coefficient of thermal expansion lower than the coefficient of thermal expansion of the ceramic matrix and at least one dopant that covers the majority of the ceramic matrix grain boundaries, at a concentration that does not exceed the bulk solubility limit of the dopant in the ceramic matrix at the ceramic nanocomposite sintering temperature.
    Type: Application
    Filed: August 11, 2014
    Publication date: November 27, 2014
    Inventors: Wayne David KAPLAN, Gali Gluzer, Moshe Katz, Gil Perlberg
  • Publication number: 20140342898
    Abstract: The present disclosure relates to porous ceramic articles and a method of making the same. The porous ceramic articles have microstructure of sinter bonded or reaction bonded large pre-reacted particles and pore network structure exhibiting large pore necks. The method of making the porous ceramic articles involves using pre-reacted particles having one or more phases. A plastic ceramic precursor composition is also disclosed. The composition includes a mixture of at least one of dense, porous, or hollow spheroidal pre-reacted particles and a liquid vehicle.
    Type: Application
    Filed: April 11, 2014
    Publication date: November 20, 2014
    Applicant: Corning Incorporated
    Inventors: Monika Backhaus-Ricoult, Christopher Raymond Glose
  • Publication number: 20140339745
    Abstract: A method of making an object using mold casting, comprising the steps of applying a slip mixture into a mold fabricated by 3D printing or additive manufacturing technique, and firing the mold containing the slip mixture. A composition of a slip mixture for use with a mold fabricated by 3D printing or additive manufacturing technique, the composition comprising calcium aluminate, from 10% to 60% by weight, and a filler. Such method and composition can provide efficient and economically viable ways of fabricating objects having complex shapes and high density.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 20, 2014
    Inventor: Stuart URAM
  • Publication number: 20140336032
    Abstract: The invention relates to novel transparent glasses, vitroceramics, and transparent or translucent ceramics containing, in relation to the total composition of the glass, vitroceramic, or ceramic, at least 60 wt% of a composition having the following formula (I): (M1O)x(M2O)y(M3)2O3)z(Al2O3)100?x?y?z (I), where M1 is an element selected from among Ba and/or Sr, M2 is an element selected from among Mg or Ca, x and y are numbers such that 30?x+y?80, y is between 0% and 10% of x, M3 is an element selected from among B, Ga, or In, and z is a number between 0% and 10% of (100?x?y). The invention also relates to the method for manufacturing said compositions and to the uses of said compositions in the field of optics.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 13, 2014
    Inventors: Salaheddine Alahrache, Mathieu Allix, Guy Matzen, Francis Millot, Marina Licheron, Thierry Cardinal, Alain Garcia, Kholoud Al Saghir
  • Publication number: 20140336034
    Abstract: Mixer for ceramic feedstock pellets with a tank, a mixing means, and heat exchange means including cooling means for the cooling of the content of this tank. Control means control the heat exchange means which include heating means arranged to heat the content of this tank to a temperature comprised between a lower temperature (TINF) and a higher temperature (TSUP) stored in a memory for a specific mixture, and the heating means exchange energy with a heat exchange and mixing temperature maintenance circuit, external to this tank, and wherein the thermal inertia of this circuit is higher than that of this fully loaded tank. The invention also concerns a method for mixing raw material for powder metallurgy, implementing a specific injection moulding composition and a specific binder.
    Type: Application
    Filed: May 2, 2014
    Publication date: November 13, 2014
    Applicant: Comadur S.A.
    Inventor: Damien CARTIER
  • Patent number: 8871114
    Abstract: Disclosed herein are emissive ceramic elements having low amounts of certain trace elements. Applicants have surprisingly found that a lower internal quantum efficiency (IQE) may be attributed to specific trace elements that, even at very low amounts (e.g., 50 ppm or less), can cause significant deleterious effects on IQE. In some embodiments, the emissive ceramic element includes a garnet host material and an amount of Ce dopant. The emissive ceramic element may, in some embodiments, have an amount of Na in the composition less than about 67 ppm, an amount of Mg in the composition less than about 23 ppm, or an amount of Fe in the composition less than about 21 ppm.
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: October 28, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Hiroaki Miyagawa, Bin Zhang, James Chienchung Shih
  • Publication number: 20140314990
    Abstract: The invention provides novel paving stones and construction block composite materials and methods for preparation thereof. The paving stones and construction block composite materials can be readily produced from widely available, low cost precursor materials by a production process that involves compacting in a mold that is suitable for large-scale production. The precursor materials include calcium silicate, for example, wollastonite, and particulate filler materials which can comprise silicon dioxide-rich materials. Additives can include calcium carbonate-rich and magnesium carbonate-rich materials. Various additives can be used to fine-tune the physical appearance and mechanical properties of the composite material, such as colorants such as particles of colored materials, such as, and pigments (e.g., black iron oxide, cobalt oxide and chromium oxide).
    Type: Application
    Filed: March 13, 2014
    Publication date: October 23, 2014
    Applicant: SOLIDIA TECHNOLOGIES, INC.
    Inventors: Francis Henn, Deepak Ravikumar, John P. Kuppler, Kenneth Smith, Oguzhan Oflaz, Dawid Zambrzycki, Vahit Atakan
  • Patent number: 8859446
    Abstract: A method for producing an ? alumina sintered body for the production of a sapphire single crystal characterized in that a relative density is 60% or more, a closed porosity is 10% or less, a purity is 99.99% by mass or more, each content of Si, Na, Ca, Fe, Cu and Mg is 10 ppm or less, and a volume is 1 cm3 or more, and the ? alumina sintered body can be obtained by mixing 100 parts by weight of an ? alumina with 1 part by weight or more and 20 parts by weight or less of an ? alumina precursor to obtain a mixture, forming a compact from the obtained mixture, and firing the obtained compact.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: October 14, 2014
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hirotaka Ozaki, Shinji Fujiwara
  • Patent number: 8828531
    Abstract: Disclosed herein are emissive ceramic materials having a dopant concentration gradient along a thickness of a yttrium aluminum garnet (YAG) region. The dopant concentration gradient may include a maximum dopant concentration, a half-maximum dopant concentration, and a slope at or near the half-maximum dopant concentration. The emissive ceramics may, in some embodiments, exhibit high internal quantum efficiencies (IQE). The emissive ceramics may, in some embodiments, include porous regions. Also disclosed herein are methods of make the emissive ceramic by sintering an assembly having doped and non-doped layers.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: September 9, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Guang Pan, Hiroaki Miyagawa, Hironaka Fujii, Bin Zhang, Rajesh Mukherjee, Toshitaka Nakamura, Amane Mochizuki
  • Publication number: 20140200132
    Abstract: A member covered with a hard coating according to the present invention has a hard coating which has excellent erosion resistance, a hardness (H) of 20 GPa or more as measured using a nano indenter and a ratio of the hardness (H) to a Young's modulus (E) (i.e., H/E) of 0.06 or more, and comprises Ti and/or Cr, Al and N, wherein the total amount of Ti and Cr relative to the total amount of elements other than non-metal elements in the coating is 0.1 to 0.6 inclusive in terms of atomic ratio and the amount of Al relative to the total amount of the elements other than the non-metal elements in the coating is 0.4 to 0.7 inclusive in terms of atomic ratio.
    Type: Application
    Filed: June 15, 2012
    Publication date: July 17, 2014
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Kenji Yamamoto, Yoshiro Iwai, Jun Munemasa
  • Publication number: 20140200131
    Abstract: A silicon nitride material is disclosed which has properties beneficial for efficient operation of a corona discharge igniter system in an internal combustion gas engine.
    Type: Application
    Filed: March 17, 2014
    Publication date: July 17, 2014
    Applicant: CERADYNE, INC.
    Inventor: Biljana Mikijelj
  • Publication number: 20140194272
    Abstract: A method of treating a preceramic material includes providing a preceramic polycarbosilane or polycarbosiloxane material that includes a moiety Si—O—M, where Si is silicon, O is oxygen and M is at least one metal, and thermally converting the preceramic polycarbosilane or polycarbosiloxane that includes the moiety Si—O—M material into a ceramic material.
    Type: Application
    Filed: March 11, 2014
    Publication date: July 10, 2014
    Applicant: United Technologies Corporation
    Inventor: Wayde R. Schmidt
  • Publication number: 20140178138
    Abstract: A sintered compact contains cubic sialon, ?-sialon, and at least one of a first component and a second component. The first component is at least one element selected from the group consisting of iron, cobalt, nickel, and group 4 elements, group 5 elements, and group 6 elements of the periodic table. The second component is at least one compound containing at least one element selected from the group consisting of group 4 elements, group 5 elements, and group 6 elements and at least one element selected from the group consisting of carbon, nitrogen, and boron.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kenichi WATATANI, Michiko MATSUKAWA, Katsuhito YOSHIDA, Daisuke MURAKAMI
  • Publication number: 20140179826
    Abstract: The invention provides a modified perovskite type composite oxide in which the particle surface of a perovskite type composite oxide is coated with a first component of at least one selected from TiO2 and SiO2 and a second component of at least one selected from a group consisting of Al, Zr, Nd, La, Ce, Pr, and Sm, wherein the coating is formed by hydrolyzing at least one selected from a hydrolyzable TiO2 precursor and a hydrolyzable SiO2 precursor as a source of the first component and a salt of at least one selected from a group consisting of Al, Zr, Nd, La, Ce, Pr, and Sm as a source of the second component, and then calcining them.
    Type: Application
    Filed: November 15, 2013
    Publication date: June 26, 2014
    Applicant: Nippon Chemical Industrial Co., Ltd.
    Inventor: Shinji Tanabe
  • Publication number: 20140179511
    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: Application
    Filed: May 31, 2012
    Publication date: June 26, 2014
    Applicant: CENTRE DE RECHERCHE DE L'INDUSTRIE BELGE LA CÉRAMIQUE
    Inventors: Fabrice Petit, Veronique Lardot, Cedric Ott, Enrique Juste, Francis Cambier
  • Publication number: 20140155249
    Abstract: Feed material comprising uniform solution precursor droplets is processed in a uniform melt state using microwave generated plasma. The plasma torch employed is capable of generating laminar gas flows and providing a uniform temperature profile within the plasma. Plasma exhaust products are quenched at high rates to yield amorphous products. Products of this process include spherical, highly porous and amorphous oxide ceramic particles such as magnesia-yttria (MgO—Y2O3). The present invention can also be used to produce amorphous non oxide ceramic particles comprised of Boron, Carbon, and Nitrogen which can be subsequently consolidated into super hard materials.
    Type: Application
    Filed: December 4, 2012
    Publication date: June 5, 2014
    Inventors: Kamal HADIDI, Makhlouf REDJDAL
  • Publication number: 20140137814
    Abstract: The present invention relates to a composition for forming a friable-resistant dielectric porcelain material. The present invention also relates to a friable-resistant dielectric porcelain material formed from the composition of the present invention, a method of making a friable-resistant dielectric porcelain material, a friable-resistant dielectric porcelain material formed by the method of the present invention, a dielectric porcelain material comprising a particular composition, and a system for producing ozone using the dielectric porcelain material of to the present invention.
    Type: Application
    Filed: November 16, 2012
    Publication date: May 22, 2014
    Applicant: Victor Insulators, Inc.
    Inventor: Ira Knickerbocker
  • Patent number: 8728635
    Abstract: An oxide sintered body having zinc oxide as a main component and containing magnesium, and a transparent conductive substrate are provided, and an oxide sintered body having zinc oxide and magnesium, wherein content of magnesium is from 0.02 to 0.30 as atom number ratio of Mg/(Zn+Mg); an oxide sintered body having zinc oxide, magnesium, gallium and/or aluminum, wherein content of gallium and/or aluminum is over 0 and equal to or lower than 0.09 as atom number ratio of (Ga+Al)/(Zn+Ga+Al), and content of magnesium is from 0.02 to 0.30 as atom number ratio of Mg/(Zn+Ga+Al+Mg); a target obtained by processing these oxide sintered bodies; and a transparent conductive film formed on a substrate by a sputtering method or an ion plating method, by using this target.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: May 20, 2014
    Assignee: Sumitomo Metal Mining Co., Ltd.
    Inventors: Tokuyuki Nakayama, Yoshiyuki Abe
  • Publication number: 20140130794
    Abstract: A thin-film spectrally selective coating for receiver tube of vacuumed type for use in thermodynamic solar installations and operating both at medium temperature (up to 400° C.) and at high temperature (up to 550° C.), coating where the optically absorbing layer is a multilayer of cermet material of type: WyN—AlNx or MoyN—AlNx, material prepared with reactive co-sputtering technique from an Al target and a W or Mo target, process conducted under a transition regimen, under PFM (Plasma Emission Monitoring) or CVM (Cathode Voltage Monitoring) monitoring for the sole Al target, with inletting near the Al target of a N2 amount adequate for obtainment of a high-transparency, high growth rate sub-stoichiometric ceramic AlN and with inletting near the W or Mo target of a N2 amount adequate for obtainment of the sole W2N or Mo2N phase, phase very stable at high temperature, such as to make the cermet material as close as possible to the formulation W2N—AlNx or Mo2N—AlNx (with x comprised between 0.90 and 1.
    Type: Application
    Filed: June 14, 2012
    Publication date: May 15, 2014
    Applicant: AGENZIA NAZIONALE PER LE NUOVE TECNOLOGIE, L'ENERGIA E LO SVILUPPO ECONOMICO SOSTENIBILE(ENEA
    Inventors: Alessandro Antonaia, Salvatore Esposito, Maria Luisa Addonizio, Antonio Guglielmo
  • Patent number: 8721915
    Abstract: This invention relates to partially ordered and ordered oxynitride perovskites of the general formula ABO2N that are polar insulators. A comprises one or more cations or set of cations that sit in sites derived from the A-site in the perovskite structure. B comprises one or more cations or set of cations that sit in sites derived from the B-site in the perovskite structure. C comprises oxygen, O, with optionally some nitrogen, N, and D comprises N, with optionally some O. The total valence of the cations A+B is equal to the total valence of the anions 2 C+D. Also disclosed are methods of producing such oxynitride perovskites and uses of such oxynitride perovskites.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: May 13, 2014
    Assignee: Carnegie Institution of Washington
    Inventors: Ronald Cohen, Razvan Caracas
  • Patent number: 8722188
    Abstract: Disclosed is a process for producing ceramic particles, such as proppants, that have at least 10 percent total porosity. The process includes forming a particle precursor that includes 5 percent to 30 percent of a first ceramic material and at least 40 percent of a second ceramic material. The sintering temperature of the first ceramic material may be lower than the sintering temperature of a second ceramic material. Heating the precursor to a maximum temperature above the sintering temperature of the first material and below the sintering temperature of the second material. Also disclosed is a ceramic article that has a particular combination of chemistry and alumina crystalline phase.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: May 13, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Tihana Fuss, Laurie San-Miguel, Kevin R. Dickson, Walter T. Stephens