With Vitrification Or Firing Ceramic Material Patents (Class 156/89.11)
  • Patent number: 8021739
    Abstract: A unitary structure (10) is comprised of two or more planar substrates (30, 40) fused together by a glass or glass-ceramic sintered frit structure (20) disposed therebetween. The pattern of the sintered patterned frit material defines passages (70) therein, and the sintered frit structure (20) has a characteristic minimum feature size (60) in a direction parallel to the substrates. Particles of the frit material have a poly-dispersed size distribution up to a maximum frit particle size, in a maximum length dimension, and the minimum feature size or dimension (60) of the sintered patterned frit material is greater than 2 times the maximum frit particle size, desirably about 3 times or more, and less than 6.25 times the maximum frit particle size, desirably about 5 times or less, most desirably about 4 times or less. A method for making the structure (10) is also disclosed.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: September 20, 2011
    Assignee: Corning Incorporated
    Inventor: Yann P M Nedelec
  • Patent number: 8016967
    Abstract: In the manufacture of a multilayer ceramic substrate including a ceramic laminate by a so-called non-shrink process in which the ceramic laminate disposed between shrinkage control layers is fired, first and second surface conductive films formed on first and second main surfaces of the ceramic laminate may cause warping of the multilayer ceramic substrate after the shrinkage control layers are removed. After the firing step, in removing the shrinkage control layers from a composite laminate, the thickness of at least one of first and second reaction layers formed at interfaces between ceramic green layers and the shrinkage control layers in the firing step is reduced such that the thickness of the first reaction layer is different from the thickness of the second reaction layer, thereby controlling the compressive stress generated by the reaction layers to reduce the warping of the multilayer ceramic substrate.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: September 13, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Yoshifumi Saito
  • Publication number: 20110209813
    Abstract: Laser sealing property and reliability of a glass panel are increased by suppressing cracks, fractures, separation and the like of glass substrates and a sealing material layer at the time of laser sealing. A first paste for a sealing material containing no laser absorbent and a second paste for a sealing material containing a laser absorbent are applied in this order on a sealing region 2a of a glass substrate 2. A laminate film of a coating layer 11 of the first paste for a sealing material and a coating layer 12 of the second paste for a sealing material is fired, to form a sealing material layer 3 having a laminated structure of a layer 4 of the first glass material for sealing and a layer 5 of the second glass material for sealing.
    Type: Application
    Filed: May 10, 2011
    Publication date: September 1, 2011
    Applicant: Asahi Glass Company, Limited
    Inventors: Koichi SHIBUYA, Asahi Ide, Sohei Kawanami
  • Publication number: 20110210658
    Abstract: A ceramic composite laminate includes a wavelength-converting layer and a non-emissive layer, wherein the ceramic composite laminate has a wavelength conversion efficiency (WCE) of at least 0.650. The ceramic composite laminate can also include a wavelength-converting ceramic layer comprising an emissive material and a scattering material, wherein the laminated composite has a total transmittance of between about 40% to about 85%. The wavelength-converting layer may be formed from plasma YAG:Ce powder.
    Type: Application
    Filed: January 28, 2011
    Publication date: September 1, 2011
    Applicant: NITTO DENKO CORPORATION
    Inventors: Guang PAN, Hironaka FUJII, Hiroaki MIYAGAWA, Rajesh MUKHERJEE, Bin ZHANG, Toshitaka NAKAMURA, Amane MOCHIZUKI
  • Patent number: 7992411
    Abstract: A method is described herein for sintering a frit to a glass plate where the sintered frit and glass plate are subsequently sealed to another glass plate to form a sealed glass package. Examples of the sealed glass package include a light-emitting device (e.g., organic light emitting diode (OLED) device), a photovoltaic device, a food container, and a medicine container.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: August 9, 2011
    Assignee: Corning Incorporated
    Inventors: Heather Debra Boek, John W Botelho, Jason Arthur Howles
  • Patent number: 7988804
    Abstract: A process for making large zircon blocks by bonding multiple zircon components, and bonding materials for use in such process. The invention enables the manufacture of large zircon blocks without the need of larger-size isopressing equipment. The invention is particularly useful in making large-size isopipes for use in a fusion down-draw process in making glass sheets for use in, e.g., LCD production.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: August 2, 2011
    Assignee: Corning Incorporated
    Inventors: William Peter Addiego, Christopher Raymond Glose
  • Publication number: 20110174722
    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: Application
    Filed: October 1, 2008
    Publication date: July 21, 2011
    Inventors: Kazuhiro Yano, Yoshinobu Takaki
  • Patent number: 7981228
    Abstract: There is provided a joined body formed by unitarily joining two or more members to be joined by means of a bonding material layer formed of a bonding material composition. The bonding material composition contains flat particles, non-flat particles, and an inorganic adhesive as main components, and the bonding material layer has a Young's modulus of 3 GPa or more. The joined body can suppress deformation of members to be joined due to thermal distortion with the bonding material layer, hardly causes rupture of the bonding material layer due to stress, and has excellent thermal shock resistance.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 19, 2011
    Assignee: NGK Insulators, Ltd.
    Inventors: Takahiro Tomita, Shinji Kawasaki
  • Patent number: 7972397
    Abstract: Superabrasive elements, methods of fabricating such elements, and applications utilizing such elements. In one embodiment, a superabrasive element includes a mass of polycrystalline diamond including ultra-dispersed diamond grain structures present in an amount greater than zero weight percent and less than about 75 weight percent of the mass of polycrystalline diamond. Various structures and apparatuses that utilize the superabrasive elements, such as polycrystalline diamond compacts (PDCs) and drill bits are disclosed. Methods of manufacture are also disclosed.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: July 5, 2011
    Assignee: US Synthetic Corporation
    Inventor: Michael A. Vail
  • Patent number: 7972430
    Abstract: A composition is for use with fabricating a ceramic composite stiffening member that defines a T-section. The stiffening member includes a web portion, at least one flange portion, a radius region disposed between the web portion and the at least one flange portion, and a skin member that is secured to the at least one flange portion and the radius region. The composition is a pliable mixture of refractory particles, plasticizers, silica-yielding polymers, and solvents that is applied along the radius region.
    Type: Grant
    Filed: August 27, 2007
    Date of Patent: July 5, 2011
    Assignee: General Electric Company
    Inventors: Michael Lee Millard, Robert G. Weber
  • Patent number: 7971337
    Abstract: The production of a hearing aid device can be simplified by the use of a microphone module with a plurality of microphones. To attach and electrically contact the microphones, the invention provides a microphone carrier with three-dimensionally directed conductor traces in MID technology. In a complicated microphone arrangement with a plurality of microphones, a single microphone module can thereby be used on which all microphones of the hearing aid device are attached and electrically connected.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: July 5, 2011
    Assignee: Siemens Audiologische Technik GmbH
    Inventors: Holger Kral, Joseph Sauer, Markus Trautner
  • Patent number: 7968043
    Abstract: An auxiliary-layer-lined unfired ceramic body, having a step portion in a principal surface thereof, has an unfired ceramic body and an auxiliary layer which is adhered to one principal surface of the unfired ceramic body and which is made of a material that is substantially unsinterable at a temperature at which the unfired ceramic body is fired. The auxiliary-layer-lined unfired ceramic body is fired at a temperature at which the unfired ceramic body is sinterable but the auxiliary layer is substantially unsinterable, while the auxiliary layer remains adhered to the unfired ceramic body. A pressing operation is performed using a die having a projection placed on the side of the auxiliary-layer-lined unfired ceramic body retaining the auxiliary layer, so that the step portion, having a shape corresponding to the outer shape of the die projection, is formed in the side of the auxiliary-layer-lined unfired ceramic body retaining the auxiliary layer.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: June 28, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yuki Ito, Osamu Chikagawa, Tetsuya Ikeda
  • Publication number: 20110150663
    Abstract: Process for producing a ceramic composite structure includes impregnating a reinforcing material with a suitable precursor slurry composition including thermosetting resin, a suitable curing agent, a ceramic component, a carbonaceous solids component, and optionally, a suitable solvent. Exemplary thermosetting resins include polyesters, vinyl esters, epoxy resins, bismaleimide resins, and polyimide resins. The carbonaceous solids component provides a suitable amount of carbon char upon pyrolization. The preform may be dried prior to curing to remove solvents and thereby provide a working material comprising up to 70 volume % solids. The preform is cured, pyrolized, and infiltrated with molten silicon to form a composite article. The thermosetting resin is selected for processability, green strength, and relatively fast cure cycle.
    Type: Application
    Filed: June 30, 2010
    Publication date: June 23, 2011
    Inventors: Paul Stephen Manicke, Bryant Edward Walker, Warren Rosal Ronk
  • Patent number: 7955461
    Abstract: A mold having concave portions in a predetermined 3-D shape is prepared. A slurry is filled into the concave portions and the mold storing the slurry is then placed on an upper surface of a ceramic green sheet. A pressure inside the sheet is lowered through a pipe and a sintered porous metal support with the green sheet being heated by a hot plate. Accordingly, a solvent in the slurry is permeated into the fine pores of the green sheet and evaporated, thereby drying the 3-D forming portion without deformation.
    Type: Grant
    Filed: September 9, 2009
    Date of Patent: June 7, 2011
    Assignee: NGK Insulators, Ltd.
    Inventors: Atsushi Mase, Hidehiko Tanaka, Hideki Shimizu
  • Publication number: 20110125210
    Abstract: The present invention is directed to a ceramic monolith for use as a feedthrough in medical devices and method of making. The monolith includes a first surface, a second surface, and a passageway extending from the first surface to the second surface. The first surface is high temperature co-fired ceramic and the second surface is low temperature co-fired ceramic, and the two ceramics are intermixed in a blended interface located between the first and second surfaces.
    Type: Application
    Filed: November 24, 2009
    Publication date: May 26, 2011
    Applicant: Medtronic, Inc.
    Inventors: Richard W. A. Francis, Rajesh V. Iyer
  • Patent number: 7947143
    Abstract: An apparatus for providing uniform axial load distribution for laminate layers of multilayer ceramic chip carriers includes a base plate configured to support a plurality of green sheet layers thereon, the base plate having at least one resiliently mounted load support bar disposed adjacent outer edges of the base plate. The load support bar is mounted on one or more biasing members such that the top surface of the support bar extends above the top surface of the base plate by a selected distance.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: May 24, 2011
    Assignee: International Business Machines Corporation
    Inventors: Jay A. Bunt, Donald W. Diangelo, Cristian Docu, Thomas Foley, Melvin R. Gottschalk, Jr., Lisa A. Hamilton, Thomas A. Kline, Mark J. LaPlante, Hsichang Liu, Sebastian Loscerbo, Govindarajan Natarajan, Olga A. Otieno, Renee L. Weisman
  • Publication number: 20110116263
    Abstract: The present invention relates to an optical element for a light emitting device, wherein the optical element comprises a sintered ceramic body (3) comprising a wavelength converting layer (4) and a scattering layer (5), and to a method of manufacturing thereof. More specifically, the invention relates to an optical element, comprising a sintered ceramic body (3) of a first layer (4) and a second layer (5) arranged on the first layer, wherein the first layer comprises a wavelength converting material, the porosity of the second layer is higher than the porosity of the first layer, and pores in the second layer are arranged to provide scattering of a light beam.
    Type: Application
    Filed: July 15, 2009
    Publication date: May 19, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Johannes Franciscus Maria Cillessen, Henricus Albertus Maria Van Hal, Hendrik Johannes Boudewijn Jagt, Oliver Jens Steigelmann
  • Publication number: 20110114944
    Abstract: One object is to provide a deposition technique for forming an oxide semiconductor film. By forming an oxide semiconductor film using a sputtering target including a sintered body of a metal oxide whose concentration of hydrogen contained is low, for example, lower than 1×1016 atoms/cm3, the oxide semiconductor film contains a small amount of impurities such as a compound containing hydrogen typified by H2O or a hydrogen atom. In addition, this oxide semiconductor film is used as an active layer of a transistor.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 19, 2011
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Toru Takayama, Keiji Sato
  • Publication number: 20110088831
    Abstract: A laminated body includes, in sequence, a base layer mainly composed of a ceramic material and a glass material, a first constraining layer that is primarily made of a ceramic material that is not sintered at a temperature at which the base layer is sintered, a second constraining layer primarily made of a ceramic material and a glass material that are sintered at the temperature at which the base layer is sintered, and a third constraining layer primarily made of a ceramic material that is not sintered at the temperature at which the base layer is sintered. The laminated body is subsequently fired at the temperature at which the base layer is sintered. The first, second, and third constraining layers are removed from the fired laminated body to provide a ceramic body that is a sinter of the base layer. After the firing, adhesion between the base layer and the first constraining layer and adhesion between the second constraining layer and the first constraining layer are different from each other.
    Type: Application
    Filed: December 7, 2010
    Publication date: April 21, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Osamu CHIKAGAWA
  • Patent number: 7926163
    Abstract: An oscillator device having an oscillating member, a resilient support and a supporting member is produced. The oscillating member is supported by the resilient support for oscillation about an oscillation axis. The oscillating member is formed with a movable element having protrusions for adjusting its mass, the protrusions extending from the movable element parallel to the oscillation axis and being formed in pairs disposed at positions symmetrical with respect to the oscillation axis. A sectional area of each protrusion along a plane perpendicular to the oscillation axis is constant in the oscillation axis direction. A laser beam is projected to a cutting position of protrusions, so as to partly remove the protrusion. The protrusions are cut based on adjusting the cutting position. The sum of the lengths removed from the protrusions by the cutting becomes equal to a predetermined length to thereby adjust an inertia moment of the oscillating member.
    Type: Grant
    Filed: June 9, 2009
    Date of Patent: April 19, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takahisa Kato, Yukio Furukawa, Takahiro Akiyama
  • Patent number: 7922845
    Abstract: An apparatus for bonding a first carbon composite to a second carbon composite through a reactant layer includes a housing, and a pair of conductive press plates electrically isolated from the housing. The press plates are adapted to position the two parts to be bonded with a reactant layer therebetween. The press plates are subjected to an electrical potential and a clamping force, sufficient to initiate a combustion reaction that creates a molten ceramic to bond together the carbon-carbon composites.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: April 12, 2011
    Assignees: Honeywell International Inc., University of Notre Dame Du Lac
    Inventors: Allen H. Simpson, Slawomir T. Fryska, Mark L. La Forest, Roger L. Klinedinst, Alexander Mukasyan, Charles D. D'Amico
  • Patent number: 7919033
    Abstract: A method of manufacturing a honeycomb structure having a plugged portion, which is faster and cheaper to manufacture, and a manufacturing apparatus thereof. A film is attached to an end face of a honeycomb structure in a state where the honeycomb structure is positioned in a table portion having a through hole into which the end face portion of the honeycomb structure is to be inserted, and the film is held in a flat state where a remaining portion of the film which is not attached to the end face is attached to the table portion. Then, holes opened so as to correspond to the openings of a part of cells are formed in the film to form the film as a mask, and a plugging material having fluidity is supplied onto the mask or onto the same plane as the mask to fill the cells with the plugging material.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: April 5, 2011
    Assignee: NGK Insulators, Ltd.
    Inventors: Ryuichi Shoji, Takuya Nunome, Koji Kimura, Yoshimasa Kondo, Hiroyuki Tsuji
  • Patent number: 7914636
    Abstract: A recipe and two sequential processes for fabrication of electrode substrates of solid oxide fuel cells (SOFCs) are described in this invention. The typical recipe consists of 50˜86 wt % electrolyte (8YSZ) or 50˜80 wt % anode electrode (NiO/8YSZ), 12˜22 wt % MEK (solvent 1), 5˜9 wt % EtOH (solvent 2), 1˜2 wt % TEA (dispersant), 0.5˜2 wt % DBP (plasticizer 1), 0.5˜2 wt % PEG (plasticizer 2), 3˜6 wt % PVB (binder), and 0.1˜10 wt % graphite (pore former). Two sequential processes include: 1. The process for preparation of the green tape slurry from materials of the recipe, 2. The synergistic process for fabrication of a high integrity membrane electrode assembly (MEA) of SOFC from the prepared electrode substrates.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: March 29, 2011
    Assignee: Institute of Nuclear Energy Research
    Inventors: Maw-Chwain Lee, Wei-Xin Kao, Tai-Nan Lin, Yang-Chuang Chang, Chun-Hsiu Wang
  • Publication number: 20110064952
    Abstract: A method of fabricating a ceramic substrate includes: preparing a firing theta; forming a ceramic laminated body comprising at least one internal confinement layer on the ceramic theta; providing a temperature-compensation ceramic layer on at least one of a top surface of the ceramic laminated body and a bottom surface of the ceramic laminated body contacting the firing theta, the temperature-compensation ceramic layer having a different initial firing shrinkage temperature than the ceramic laminated body; and firing the ceramic laminated body.
    Type: Application
    Filed: December 31, 2009
    Publication date: March 17, 2011
    Inventors: Min Ji Ko, Yong Seok Choi
  • Publication number: 20110045242
    Abstract: When a multilayer ceramic substrate with a cavity is reduced in thickness, a bottom wall portion defining the bottom of the cavity is reduced in thickness, thereby leading to the problem that the bottom wall portion is likely to be broken. A bottom wall portion defining a cavity of a multilayer ceramic substrate has a stack structure formed with a high thermal expansion coefficient layer sandwiched between first and second low thermal expansion coefficient layers. This configuration generates compression stress in the low thermal expansion coefficient layers during a cooling process after firing, thereby allowing the mechanical strength at the bottom wall portion to be improved.
    Type: Application
    Filed: November 5, 2010
    Publication date: February 24, 2011
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventor: Yuichi IIDA
  • Patent number: 7888277
    Abstract: A precursor of a ceramic adhesive suitable for use in a vacuum, thermal, and microgravity environment. The precursor of the ceramic adhesive includes a silicon-based, preceramic polymer and at least one ceramic powder selected from the group consisting of aluminum oxide, aluminum nitride, boron carbide, boron oxide, boron nitride, hafnium boride, hafnium carbide, hafnium oxide, lithium aluminate, molybdenum silicide, niobium carbide, niobium nitride, silicon boride, silicon carbide, silicon oxide, silicon nitride, tin oxide, tantalum boride, tantalum carbide, tantalum oxide, tantalum nitride, titanium boride, titanium carbide, titanium oxide, titanium nitride, yttrium oxide, zirconium boride, zirconium carbide, zirconium oxide, and zirconium silicate. Methods of forming the ceramic adhesive and of repairing a substrate in a vacuum and microgravity environment are also disclosed, as is a substrate repaired with the ceramic adhesive.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: February 15, 2011
    Assignee: COI Ceramics, Inc
    Inventors: James A. Riedell, Timothy E. Easler
  • Publication number: 20110027539
    Abstract: This invention relates to a process which produces crack-free, non-camber, distortion-free, zero-shrink, LTCC bodies, composites, modules or packages from precursor green (unfired) laminates of multilayer structure with one or more different dielectric tape chemistries that are patterned with co-fireable thick film circuitry materials such as conductor, via fill, capacitor, inductor, or resistor for each tape layer including both top and bottom surface tape layers in direct contact with the sacrificial release tape.
    Type: Application
    Filed: June 13, 2007
    Publication date: February 3, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Carl B Wang, Michael Arnett Smith
  • Patent number: 7879438
    Abstract: The subject matter disclosed herein relates to methods to reduce warpage of a substrate.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: February 1, 2011
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Jyh-Rong Lin, Bin Xie, Yeung Yeung, Xunqing Shi, Chang Hwa Chung
  • Patent number: 7879169
    Abstract: A method for producing a ceramic compact includes a laminate-preparing step of preparing an unfired laminate including a base layer including a ceramic powder and a glass material and a constraining layer that is in contact with at least one principal surface of the base layer and that primarily includes a burnable material which does not burn off when the burnable material is fired in a low-oxygen atmosphere but which burns off when the burnable material is fired at an oxygen partial pressure greater than that of the low-oxygen atmosphere, and a firing step of firing the unfired laminate to sinter the base layer. The firing step includes a first firing sub-step of firing the laminate including the constraining layer to sinter the base layer and a second firing sub-step of firing at an oxygen partial pressure greater than that of the first firing sub-step such that the burnable material included in the constraining layer burns off.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: February 1, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Takaki Murata
  • Patent number: 7875140
    Abstract: A method for manufacturing a multilayer ceramic substrate includes: a) discharging a droplet of a conductive ink on each of a plurality of green sheets so as to draw a liquid pattern made of the conductive ink on each of the green sheets; b) drying the liquid pattern so as to form a dry pattern; c) laminating the green sheets including the dry pattern so as to form a laminated body, and applying hydrostatic pressure on the laminated body that is decompress-packaged so as to form a pressure-bonded body; and d) firing the pressure-bonded body so as to form a multilayer ceramic substrate. In the method, in the step a), the liquid pattern is drawn by drawing a wiring liquid pattern and a dummy liquid pattern drawn along a vicinity of the wiring liquid pattern.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: January 25, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Toshiyuki Kobayashi
  • Patent number: 7871482
    Abstract: Disclosed is a method of manufacturing a multilayer ceramic substrate. The method includes providing a plurality of ceramic blocks, each including a ceramic laminate having a first surface and a second surface and having a laminated structure of a plurality of ceramic green sheets containing a glass ceramic component, and a first bonding ceramic green sheet including a glass component and disposed on a surface of the first and second surfaces of the ceramic laminate, which is to contact another ceramic laminate, firing the plurality of ceramic blocks, laminating the plurality of fired ceramic blocks such that the first bonding ceramic green sheets of the adjacent ceramic blocks face each other, and bonding the plurality of ceramic blocks using the glass component of the first bonding ceramic green sheets.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: January 18, 2011
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Seok Choi, Seung Gyo Jeong, Eun Tae Park, Ki Pyo Hong, Soo Hyun Lyoo
  • Publication number: 20110008604
    Abstract: Embodiments of the invention include a hybrid article comprising at least one hard non-oxide or oxide ceramic component of at least 95% of theoretical density directly bonded to, and different from, a hard non-oxide or oxide ceramic composite component comprising a tribology enhancing component. The at least one hard non-oxide or oxide ceramic component comprises a member of the group consisting of silicon carbide, pressureless sintered silicon carbide, liquid phase sintered silicon carbide, reaction bonded silicon carbide, tungsten carbide, aluminum oxide, and silicon nitride. The at least one hard non-oxide or oxide ceramic composite component comprises a member of the group consisting of silicon carbide, pressureless sintered silicon carbide, liquid phase sintered silicon carbide, reaction bonded silicon carbide, tungsten carbide, aluminum oxide, and silicon nitride.
    Type: Application
    Filed: July 7, 2010
    Publication date: January 13, 2011
    Applicant: MORGAN ADVANCED MATERIALS AND TECHNOLOGY INC.
    Inventor: Joseph Boylan
  • Patent number: 7867349
    Abstract: A thick film green sheet slurry, a production method of thick film green sheet slurry, a production method of a thick film green sheet, a thick film green sheet and a production method of an electronic device are provided; by which coating of a relatively thick film becomes possible, a sheet formed after coating has excellent cutting property (strength capable of being cut), and a sheet having high air permeability, excellent handleability and a high adhesive force can be formed. In the present invention, a thick film green sheet slurry comprises a ceramic powder, a binder resin including a butyral based resin as the main component, and a solvent: wherein the solvent includes a good solvent for letting the binder resin dissolved well therein and a poor solvent having lower solubility to the binder resin comparing with that of the good solvent; and the poor solvent is included in a range of 30 to 60 wt % with respect to the entire solvent.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: January 11, 2011
    Assignee: TDK Corporation
    Inventors: Toru Tonogai, Shigeki Satou, Hisashi Kobayashi
  • Patent number: 7862672
    Abstract: A method is provided that includes extrusion-molding a raw material composition containing ceramic powder and a binder to manufacture a coupled honeycomb molded body having a shape in which a plurality of pillar-shaped honeycomb molded bodies, each having a number of cells disposed in parallel with one another in a longitudinal direction with a cell wall therebetween, are integrated with one another by interposing a coupling portion. The method includes firing the coupled honeycomb molded body to manufacture a coupled honeycomb fired body, cutting the coupling portion to manufacture coupling-portion-cut honeycomb fired bodies, and binding a plurality of honeycomb fired bodies by interposing an adhesive layer, where at least one of the bound honeycomb fired bodies is a coupling-portion-cut honeycomb fired body.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: January 4, 2011
    Assignee: Ibiden Co., Ltd.
    Inventors: Kazushige Ohno, Masafumi Kunieda, Shigeharu Ishikawa
  • Publication number: 20100330308
    Abstract: Certain example embodiments of this invention relate to a frit slurry paste for use in assemblies (e.g., a vacuum insulated glass unit or a plasma display panel), and methods of making the same. Frit powder, binder material, and a water-based solvent are mixed together to form an intermediate mixture. The frit powder is substantially lead free, and the water-based solvent is provided at a first temperature. Additional water-based solvent is added to the intermediate mixture to form a frit slurry paste. The additional water-based solvent is provided at a second temperature, with the second temperature being lower than the first temperature. The binder material is provided at a concentration of 0.001%-20% by weight with respect to the frit slurry paste or the frit slurry paste absent the frit powder. The frit slurry paste has a bulk viscosity of 2,000-200,000 cps.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 30, 2010
    Applicant: GUARDIAN INDUSTRIES CORP.
    Inventors: David J. Cooper, Timothy Alan Dennis
  • Patent number: 7854912
    Abstract: The crystal structure of three compositions of matter has been determined to be iso-structural with FeB ortho-rhombic (space group Pnma). The crystalline structures are: Ti0.5Ta0.5B, Zr0.5Ta0.5B and Hf0.5Ta0.5B. A process for preparing ceramics is disclosed. Molded ceramics including the compositions of matter are useful for applications such as rocket nozzles, leading edges on hypersonic missiles, engine parts and other applications requiring a structural component to operate at temperatures of 1600° C. to 2400° C.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: December 21, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Inna G. Talmy, James A. Zaykoski, Adrienne H. Smith
  • Patent number: 7854969
    Abstract: The present invention is an integral composite structural (ICS) material comprising an open metal structure having at least one external side and internal surfaces defining a plurality of open shapes with a ceramic matrix composite bonded to at least one external side and the surfaces of at least a substantial portion of the plurality of open shapes and occupying at least a substantial portion of the plurality of open shapes. The open metal structure, independent of the ceramic matrix composite, has a total metal volume percent in the range of about 10% to about 90%, with no dimension of any open shape being greater than about ¾ inch. The ceramic matrix layer covers a substantial portion of at least one external side of the open metal structure.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: December 21, 2010
    Assignee: General Electric Company
    Inventors: Michael Lee Millard, Horace Richardson, Jr., Joseph Anthony Corrado
  • Publication number: 20100317784
    Abstract: An object is to provide an inorganic powder-containing resin composition excellent in an ability to disperse the inorganic powder and excellent in transferability upon formation into a sheet. Another object is to provide an inorganic powder-containing resin composition capable of forming a dielectric layer having highlight transmittance (without bubble defect) and excellent in surface smoothness. The present invention relates to an inorganic powder-containing resin composition comprising A) an inorganic powder, B) a binder resin, C) diglycerin, and D) at least one diglycerin fatty acid ester selected from the group consisting of a diglycerin fatty acid monoester, a diglycerin fatty acid diester, a diglycerin fatty acid triester, and a diglycerin fatty acid tetraester.
    Type: Application
    Filed: September 28, 2007
    Publication date: December 16, 2010
    Inventors: Katsuya Kume, Tomohide Banba, Makoto Kai, Yasushi Buzoujima, Itsuhiro Hatanaka, Hidenori Suzuki, Tatsuya Suzuki
  • Patent number: 7846526
    Abstract: The honeycomb structural body comprises pillar-shaped honeycomb structural porous ceramic members formed by arranging a plurality of cells through cell walls, and a sealing material layer interposed between the ceramic members and having a specific surface area of approximately 10 to 100 m2/g, and the honeycomb structural body is constructed by bonding a plurality of porous ceramic members through sealing material layer as an exhaust gas convertion apparatus.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: December 7, 2010
    Assignee: Ibiden Co., Ltd
    Inventor: Masafumi Kunieda
  • Publication number: 20100291178
    Abstract: Methods and apparatuses are provided for musculoskeletal tissue engineering. For example, a scaffold apparatus is provided which comprises microspheres of selected sizes and/or composition. The microspheres are layered to have a gradient of microsphere sizes and/or compositions. The scaffold provides a functional interface between multiple tissue types.
    Type: Application
    Filed: December 22, 2009
    Publication date: November 18, 2010
    Applicant: The Trustees of Columbia University
    Inventors: Helen H. Lu, Jeffrey Spalazzi, Kathie Dionisio
  • Patent number: 7833370
    Abstract: A method for manufacturing a ceramic multi-layered substrate includes a first step of forming a green ceramic laminate including a plurality of stacked green ceramic base layers, a second step of firing the green ceramic laminate to sinter the green ceramic layers, and a third step of separating the sintered ceramic laminate formed by firing the green ceramic laminate into a ceramic multi-layered substrate. The green ceramic base layers stacked in the first step include a separation pattern formed along separation lines, the separation pattern disappearing during firing. In the third step, the sintered ceramic laminate is separated into a plurality of ceramic multi-layered substrates separated through a cavity formed by the disappearance of the separation pattern during the firing in the second step.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: November 16, 2010
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akiyoshi Kawamura, Takayuki Tsukizawa, Tetsuya Ikeda, Osamu Chikagawa
  • Patent number: 7828919
    Abstract: A method for manufacturing a multilayer ceramic electronic component can prevent the occurrence of bubble trapping. In the method, when an external layer ceramic green sheet is pressure-bonded, for example, to a sheet made of a good quality paper having a rough surface, which is placed on a supporting member, followed by peeling off its carrier film, a first-layer ceramic green sheet is formed. The first-layer external layer ceramic green sheet uses a sterically hindered dispersing agent, such as an aryl ether polymer, as a dispersing agent. Since it is light in weight, the binder segregates at the upper side, and hence a C concentration changes in the thickness direction. More particularly, compared to a C concentration at a surface at a carrier film side supported by the carrier film, a C concentration at an open surface opposite to the surface at the carrier film side is about 1.5 to about 4.0 times.
    Type: Grant
    Filed: April 15, 2008
    Date of Patent: November 9, 2010
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Daisuke Haga, Yoichiro Ito
  • Patent number: 7819995
    Abstract: There is provided a method of manufacturing a multilayer ceramic substrate, the method including: providing a non-sintered multilayer ceramic substrate having a plurality of low temperature sintering green sheets laminated therein; disposing a hard-to-sinter constraining green sheet on at least one of top and bottom surfaces of the non-sintered multilayer ceramic substrate; sintering the non-sintered multilayer ceramic substrate having the hard-to-sinter constraining layer disposed thereon; immersing the sintered multilayer ceramic substrate into an acidic solution; and activating a contact between the hard-to-sinter constraining layer and the acidic solution such that the hard-to-sinter constraining layer is removed.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: October 26, 2010
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Suk Kim, Byeung Gyu Chang, Taek Jung Lee
  • Patent number: 7807085
    Abstract: A manufacturing apparatus of a plugged honeycomb structure includes a table portion having a through hole into which the end of a honeycomb structure is inserted, positioning means for positioning and holding the honeycomb structure in the through hole of the table portion in such a manner that its end face appears on the side of a first face of the table portion, and a film holding portion fixing the remaining portion of a film on the side of a second face of the table portion. After or before fixing the film, holes corresponding to openings of cells of the honeycomb structure are formed in the film, and a plugging material is filled into the holes, to manufacture the plugged honeycomb structure using the apparatus.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: October 5, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Hiroyuki Tsuji, Yoshimasa Kondo, Takeshi Tokunaga, Toshio Oda, Shinya Yoshida, Takayuki Ogata
  • Publication number: 20100247860
    Abstract: A method of coarse enameling material, such as the surface of conventional rebar, which increases adhesion between the surface and a matrix, such as a cement-based mortar or concrete, in which the material is embedded. In one embodiment, a glass fit is fired onto a surface to achieve an enamel finish, the finish is then cooled and heat softened. A refractory material, such as dry portland cement, is applied to the heat softened enamel, and the resultant coarse coating is then fired and cooled to produce a final hard coarse enameled surface. The reaction of the refractory component in the coarse enameled surface upon insertion in fresh mortar or concrete prevents the formation of soft precipitates at the interface of the cementitious matrix and the coarse-enameled reinforcement. One embodiment involves adding portland cement Type I-II to a softened glass frit as a final coating over an initial base coating that if fired on the steel to prevent corrosion of the underlying steel.
    Type: Application
    Filed: June 4, 2010
    Publication date: September 30, 2010
    Inventors: Melvin C. Sykes, Donna C. Day, Philip G. Malone, Charles A. Weiss, JR., Earl H. Baugher, JR.
  • Publication number: 20100239885
    Abstract: A method for producing a high temperature-resistant article comprises an assembling step of foaming an assembly of a first substrate and a second substrate with an adhesive layer interposed therebetween and comprising paste of powder of at least one carbide of niobium carbide, hafnium carbide, tantalum carbide and tungsten carbide; and a bonding step of heating the assembly to bond the first substrate and the second substrate by sintering, thereby obtaining a high temperature-resistant article comprising the assembly after sintering.
    Type: Application
    Filed: March 15, 2010
    Publication date: September 23, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventor: Daisuke Nakamura
  • Publication number: 20100236206
    Abstract: In a method for manufacturing a filter element of layers of a flat material and a corrugated material resting against one another, wherein the corrugated material has peaks and valleys, an adhesive is applied onto the flat material or the peaks of the corrugated material in a direction substantially parallel to the peaks of the corrugated material to be glued onto the flat material. The peaks of the corrugated material are then glued onto the flat material. A filter element is thus produced of layers of a flat material and a corrugated material resting against one another, wherein the corrugated material has peaks and valleys, wherein the peaks of the corrugated material are glued onto the flat material by adhesive strips that extend substantially parallel to the peaks.
    Type: Application
    Filed: March 19, 2010
    Publication date: September 23, 2010
    Applicant: MANN+HUMMEL GMBH
    Inventors: Susanne Klupski, Jochen Linhart, Josef Rohrmeier
  • Patent number: 7799156
    Abstract: When a ceramic substrate is manufactured through a constraint firing step that uses a constraining layer, the constraining layer is removed without causing significant damage to a sintered base layer or an electrode formed on the surface of the sintered base layer, and the electrode can be reliably exposed. A green stacked body having a base layer and a constraining layer disposed so as to be in contact with at least one principal surface of the base layer is formed. A fired stacked body having a sintered base layer and a green constraining layer is then obtained by firing the green stacked body to sinter the base layer. Subsequently, the constraining layer is removed from the sintered base layer by vibrating media that are disposed so as to be in contact with the constraining layer.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: September 21, 2010
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akiyoshi Kawamura, Takako Sato, Osamu Chikagawa, Takaki Murata
  • Patent number: 7799405
    Abstract: The interlocking of two or more sections via the insertion of one or more out-of-plane features in one section or combination of sections through a void in one or more a complementary sections can result in a reinforced ceramic matrix composite article upon securing of the sections. The sections can be secured by friction between two tightly matched sections or by the use of a pin, hook, or clamp. The sections can be constructed from one or more CMC laminate sheets. The out-of-plane feature can be a loop or a flange and the void can be an orifice or a matched loop in the complementary sheet. The securing of the sections can result in a CMC article where the delamination between sheets is inhibited.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: September 21, 2010
    Assignee: Siemens Energy, Inc.
    Inventors: Steve James Vance, Gary B. Merrill, Alfred Paul Matheny, Jay A. Morrison
  • Patent number: 7799158
    Abstract: A method for producing a crystallographically-oriented ceramic includes the steps of forming a first sheet with a thickness of 10 ?m or less containing a first inorganic material in which grain growth occurs at a first temperature or higher and a second sheet containing a second inorganic material in which grain growth occurs at a second temperature higher than the first temperature, laminating one or more each of the first and second sheets to form a laminated body, firing the laminated body at a temperature equal to or higher than the first temperature and lower than the second temperature to cause grain growth in the first inorganic material, and then firing the laminated body at a temperature equal to or higher than the second temperature to cause grain growth in the second inorganic material in the direction of a crystal plane of the first inorganic material.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: September 21, 2010
    Assignee: NGK Insulators, Ltd.
    Inventors: Shohei Yokoyama, Nobuyuki Kobayashi, Tsutomu Nanataki