Yttrium, Lanthanide, Actinide, Or Transactinide Containing (i.e., Atomic Numbers 39 Or 57-71 Or 89+) Patents (Class 501/152)
  • Patent number: 10276892
    Abstract: Solid electrolytes compositions, methods of making the solid electrolytes, and methods of using the solid electrolytes in batteries and other electrochemical technologies are disclosed. The method of producing a solid electrolyte comprises (a) ball milling Na2CO3, SiO2, NH4H2PO4, a zirconium source, and a dopant to produce a ball milled powder; (b) calcining the ball milled powder to produce a calcined powder; and (c) sintering the calcined powder to produce a solid electrolyte. The zirconium source for the solid electrolyte may be ZrO2. The dopant for the solid electrolyte may be AI2O3, Fe2O3, Sb2O3, Yb2O3, or Dy2O3.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: April 30, 2019
    Assignee: University of Maryland
    Inventors: Eric D. Wachsman, Gregory Thomas Hitz, Kang Taek Lee
  • Patent number: 9987658
    Abstract: A method is provided for manufacturing a humidity sensing material. Particles of a trivalent rare earth hydroxide or oxide (such as lanthanum hydroxide) are mixed with particles of barium oxide and titanium dioxide in specified proportions. The particle mixture is heated to generate a sintered mixture that is milled. The resulting milled particles are mixed with glass particles, an organic surfactant, a solvent, an organic vehicle, and an alkali hydroxide. The resulting liquid mixture is deposited as a layer thereof onto a substrate. The substrate and layer thereon are processed to remove liquid portions of the liquid mixture. Such liquid removal processing includes at least one cycle of heating the layer followed by a corresponding cycle of cooling the layer in a nitrogen atmosphere containing less than 25 parts per million of oxygen.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: June 5, 2018
    Assignee: The United States of America as represented by the Aministrator of the National Aeronautics and Space Administration
    Inventors: Terry D. Rolin, Ian K. Small
  • Patent number: 9470915
    Abstract: A transparent ceramic having terbium oxide (Tb2O3) in a molar ratio of at least 40%; and at least one oxide selected among an yttrium oxide, a scandium oxide, and a lanthanide rare earth oxide, wherein (1) the crystal structure of the terbium-oxide-based ceramic does not contain a non-cubic-crystal phase, (2) the mean crystal particle diameter is in a range of 0.5 to 100 ?m, and (3) the ceramic comprises a sintering auxiliary having no incidence of deposition of a non-cubic-crystal phase in the crystal structure of the terbium-oxide-based ceramic. This transparent ceramic makes a magneto-optical element that performs at least as well as terbium gallium garnet or other existing monocrystal materials. It also makes a functional element for an optical isolator in the infrared region between 500 nm and 1.5 ?m having very little scattering and very few birefringence components.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: October 18, 2016
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Shinji Makikawa, Akira Yahagi, Akio Ikesue
  • Patent number: 9287106
    Abstract: A translucent alumina substrates, as defined herein, are disclosed along with methods of making translucent alumina substrates via such methods as tape casting. The translucent alumina substrates have advantages over prior filaments due to their quality, including total transmittance, and surface qualities, along with the simplicity of making these materials via scalable processes, such as tape casting.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: March 15, 2016
    Assignee: CORNING INCORPORATED
    Inventors: Weiguo Miao, Nathan Michael Zink
  • Patent number: 9188738
    Abstract: Provided is a method for manufacturing a translucent polycrystalline material with optical properties continuously varying in the material. A slurry including single crystal grains that are acted upon by a force when placed in a magnetic field is immobilized in a gradient magnetic field with a spatially varying magnetic flux density and then sintered. For example, where a slurry including single crystal grains of YAG doped with Er and single crystal grains of YAG undoped with a rare earth material is immobilized in the gradient magnetic field, the region with a strong magnetic field becomes a laser oscillation region that is rich in Er-doped YAG, whereas the region with a weak magnetic field becomes a translucent region rich in YAG undoped with a rare earth material. A polycrystalline material having a core with laser oscillations and a guide surrounding the core are obtained at once.
    Type: Grant
    Filed: January 4, 2012
    Date of Patent: November 17, 2015
    Assignees: Toyota Jidosha Kabushiki Kaisha, Inter-University Research Institute, National Institutes of Natural Sciences, Genesis Research Institute Incorporated
    Inventors: Takunori Taira, Jun Akiyama, Shigeo Asai
  • Patent number: 9136033
    Abstract: Provided is a sintered oxide compact that has high electric conductivity and a small B-value (temperature coefficient), and is suitable for use as an electrically conductive material, and a circuit board that uses the sintered oxide compact. The sintered oxide compact is represented by a composition formula: REaCobNicOx (where RE represents a rare earth element, a+b+c=1, and 1.3?x?1.7), the sintered oxide compact includes a perovskite phase with a perovskite-type oxide crystal structure, and the a, b, and c satisfy the following relationships: 0.459?a?0.535, 0.200?b?0.475, and 0.025?c?0.300.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: September 15, 2015
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Hisashi Kozuka, Tomoko Hishida, Hideto Yamada, Kazushige Ohbayashi
  • Patent number: 9090513
    Abstract: Provided is a method of manufacturing a transparent sesquioxide sintered body by which a transparent M2O3 type sesquioxide sintered body can be manufactured. A powder including particles of an oxide of at least one rare earth element selected from Y, Sc or lanthanide elements and Zr oxide particles is prepared as a raw material powder, wherein in the particle size distribution of the rare earth element oxide particles, or in the particle size distribution of secondary particles in the case where the rare earth element oxide particles are agglomerated to form the secondary particles, the particle diameter D2.5 value at which the cumulative particle amount from the minimum particle size side is 2.5% based on the total particle amount is in the range from 180 nm to 2000 nm, inclusive. The raw material powder is press molded into a predetermined shape, followed by sintering.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: July 28, 2015
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masanori Ikari, Yoshihiro Nojima, Shinji Makikawa, Akio Ikesue
  • Publication number: 20150132605
    Abstract: A composite composition that includes an MCrAlX alloy and a nano-oxide ceramic is disclosed. In the formula, M includes nickel, cobalt, iron, or a combination thereof, and X includes yttrium, hafnium, or a combination thereof, from about 0.001 percent to about 2 percent by weight of the alloy. The amount of the nano-oxide ceramic is greater than about 40 percent, by volume of the composition. A protective covering that includes the composite composition is also disclosed. The protective covering can be attached to a tip portion of a blade with a braze material. A method for joining a protective covering to a tip portion of a blade, and a method for repair of a blade, are also provided.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: General Electric Company
    Inventors: Sundeep Kumar, Anand Krishnamurthy, Kivilcim Onal, Pazhayannur Ramanathan Subramanian, Dennis Michael Gray, Padmaja Parakala
  • 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
  • Publication number: 20150126355
    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: January 15, 2015
    Publication date: May 7, 2015
    Applicant: AMASTAN TECHNOLOGIES LLC
    Inventors: Kamal Hadidi, Makhlouf Redjdal
  • Patent number: 9023960
    Abstract: Provided is a method of producing an ?-olefin polymer including a step of polymerizing one or more kinds of ?-olefins each having 6 to 20 carbon atoms with a catalyst obtained by using a specific transition metal compound. By the method, an ?-olefin polymer having a viscosity suitable for use in a lubricating oil can be produced on an industrial scale with ease, and further, the characteristics of the product can be widely changed through the control of reaction conditions.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: May 5, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Kiyokazu Katayama, Hideaki Noda, Hitomi Shimizu, Kiyohiko Yokota
  • 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
  • Publication number: 20150098166
    Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectric composition including a dielectric grain having a perovskite structure represented by ABO3, wherein, when an imaginary line is drawn in a direction from a center of the dielectric grain to a grain boundary thereof, a content of rare earth elements in a region corresponding to 0.75 to 0.95% of the dielectric grain from the center of the dielectric grain may be 0.5 to 2.5 at %, based on 100 at % of a B-site ion, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant.
    Type: Application
    Filed: December 16, 2014
    Publication date: April 9, 2015
    Inventors: Sung Hyung Kang, Doo Young Kim, Chang Hak Choi
  • 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: 20150060743
    Abstract: Perovskite related compound of the present invention have layered structures in which perovskite units and A-rare earth structure units are alternately arranged. The reduced cell parameters ar-cr and ?r-?r and the reduced cell volume Vr are within the following ranges: ar=6.05±0.6 ?, br=8.26±0.8 ?, cr=9.10±0.9 ?, ?r=103.4±10°, ?r=90±10°, ?r=90±10°, and Vr=442.37±67 ?3. At least one of the reduced cell parameters ar-cr can be m/n times as large as the aforementioned values, where m and n are independent natural numbers, the square roots of 2 or 3 or integral multiples thereof. Values of ar, br and cr can be replaced with one another, or values of ?r, ?r and ?r can be replaced with one another.
    Type: Application
    Filed: July 9, 2014
    Publication date: March 5, 2015
    Inventors: Masatomo Yashima, Kotaro Fuji, Kazuki Omoto, Yuichi Esaki, Chihiro Saito
  • Patent number: 8940187
    Abstract: Provided are a ceramic composite for light conversion, which is capable of maintaining a high radiant flux even when the proportion of Gd and Ce is increased to tune the fluorescence peak wavelength to the longer wavelength side, a process for producing the ceramic composite, and a light emitting device including the ceramic composite.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: January 27, 2015
    Assignee: UBE Industries, Ltd
    Inventors: Hideki Ohtsubo, Shin-Ichi Sakata, Shinichi Ishitobi, Yasuyuki Ichizono, Norifumi Miyamoto, Hisayoshi Iba
  • Patent number: 8921248
    Abstract: Dielectric ceramic composition comprising a compound shown by a general formula {A1-x(RE)2x/3}y-B2O5+y and has a tungsten bronze-type structure. In the formula, “A” is at least one selected from a group comprising Ba, Ca, Sr and Mg, “B” is at least one selected from Nb and Ta, “RE” is at least one selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and said “x” and “y” satisfies 0<x<1 and y<1.000, respectively. The dielectric ceramic composition further comprises an oxide of at least one selected from V, Mo, Fe, W, Mn and Cr.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: December 30, 2014
    Assignee: TDK Corporation
    Inventors: Toshihiro Iguchi, Akitoshi Yoshii, Tatsuya Kojima, Satoshi Takagi
  • 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
  • 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: 20140335266
    Abstract: Method for preparing a sol-gel corresponding to the general formula (I): A(1-x)A?xB(1-y-u)B?yB?uO3-?,??(I), said method comprising the following steps: a) Preparing an aqueous solution of water-soluble salts of said elements A, A?, optionally A?, B, and B?, in stoichiometric proportions needed to obtain the material as defined above; b) preparing a hydro-alcoholic solution of at least one non-ionic surfactant in an alcohol, mixed with an aqueous solution of ammonia in a proportion sufficient to ensure the complete dissolution of said non-ionic surfactant in said hydroalcoholic solution, the concentration of said non-ionic surfactant in said hydro-alcoholic solution being less than the critical micelle concentration; c) mixing said aqueous solution prepared in step a), with said alcoholic dispersion prepared in step b) to form a sol; d) drying said sol obtained in step c), by evaporating the solvent, to obtain a sol-gel.
    Type: Application
    Filed: September 26, 2012
    Publication date: November 13, 2014
    Inventors: Nicolas Richet, Thierry Chartier, Fabrice Rossignol, Aurelien Vivet, Pierre-Marie Geffroy
  • Publication number: 20140336035
    Abstract: An insulator for spark plug with a main constituent of alumina and containing silicon includes a grain boundary phase positioned between alumina particles. The grain boundary phase contains: a group 2A element; a rare earth element; and at least one kind of zirconium, titanium, chrome, niobium, manganese, and iron (a first element). Assuming that a total amount of the rare earth element is X (mass %), a total amount of the group 2A element is Y (mass %), and a total amount of the first element is Z (mass %), the following are met: 0.40?Y/X?2.00 0.10?Z/X?0.40.
    Type: Application
    Filed: May 8, 2014
    Publication date: November 13, 2014
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Katsuya TAKAOKA, Yutaka YOKOYAMA, Kengo FUJIMURA, Hironori UEGAKI, Hiroki TAKEUCHI, Hirokazu KURONO, Toshitaka HONDA, Kuniharu TANAKA, Takeshi MITSUOKA
  • Patent number: 8872119
    Abstract: A scintillation device includes a free-standing ceramic scintillator body that includes a polycrystalline ceramic scintillating material comprising a rare earth element, wherein the polycrystalline ceramic scintillating material is characterized substantially by a cation-deficient perovskite structure. A method of producing a free-standing ceramic scintillator body includes preparing a precursor solution including a rare earth element precursor, a hafnium precursor and an activator (Ac) precursor, obtaining a precipitate from the solution, and calcining the precipitate to obtain a polycrystalline ceramic scintillating material including a rare earth hafnate doped with the activator and having a cation-deficient perovskite structure.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: October 28, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Anne B. Hardy, Qiwei Chen, Xiaofeng Peng, Nathalie Petigny, Bruno Viana, Andrée Kahn-Harari
  • Patent number: 8871312
    Abstract: Specialty ceramic materials which resist corrosion/erosion under semiconductor processing conditions which employ a corrosive/erosive plasma. The corrosive plasma may be a halogen-containing plasma. The specialty ceramic materials have been modified to provide a controlled electrical resistivity which suppresses plasma arcing potential.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: October 28, 2014
    Assignee: Applied Materials, Inc.
    Inventors: Jennifer Y. Sun, Kenneth S. Collins, Ren-Guan Duan, Senh Thach, Thomas Graves, Xiaoming He, Jie Yuan
  • 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
  • Patent number: 8853115
    Abstract: A dielectric ceramic composition comprising a compound shown by a general formula {A1?x(RE)2x/3}y-D2O5+y having tungsten bronze-type structure and an oxide of “M”. “A” is at least one selected from Ba, Ca, Sr and Mg, “D” is at least one selected from Nb and Ta, “RE” is at least one selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, “x” and “y” satisfies 0<x<1 and y>0, respectively and said “M” is at least one selected from Al, Si, B and Li. It is preferable to further comprise Mg oxide.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: October 7, 2014
    Assignee: TDK Corporation
    Inventors: Toshihiro Iguchi, Akitoshi Yoshii, Tatsuya Kojima, Satoshi Takagi
  • Patent number: 8853112
    Abstract: A sintered bead presenting the following chemical analysis, in percentages by weight and for a total of 100%: ZrO2+HfO2: 78%-85%; CeO2: ?15%; Al2O3: >0.1%; additive: >0.1%; impurities: <1%; the additive being selected from MnO, MnO2, Fe2O3, CuO, TiO2, Y2O3, Sb2O3, ZnO, and mixtures thereof. Application to microgrinding and to microdispersion.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: October 7, 2014
    Assignee: Saint-Gobain Centre de Recherches et d'Etudes Europeen
    Inventors: Emmanuel Nonnet, Rimma Khodakovskaya, Moshe Link, Marcel Yancu, Andrei Schon, Eric Hanus
  • Patent number: 8841224
    Abstract: Dielectric ceramic composition comprising a compound shown by a general formula {A1?x(RE)2x/3}y-B2O5+y and has a tungsten bronze-type structure. In the formula, “A” is at least one selected from a group comprising Ba, Ca, Sr and Mg, “B” is at least one selected from Nb and Ta, “RE” is at least one selected from Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, and said “x” and “y” satisfies 0<x<1 and y>1.000, respectively. The dielectric ceramic composition further comprises an oxide of at least one selected from V, Mo, Fe, W, Mn and Cr.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: September 23, 2014
    Assignee: TDK Corporation
    Inventors: Toshihiro Iguchi, Akitoshi Yoshii, Tatsuya Kojima, Satoshi Takagi
  • Patent number: 8828281
    Abstract: Starting from, as the initial composite, an LAS component in accordance with the composition LixAlySizOw, where x varies between 0.8 and 1.2, y varies between 0.8 and 1.2, z varies between 0.8 and 2, and w varies between 4 and 6, the LAS component is subsequently mixed with SiC nanoparticles, to obtain a stable, homogeneous suspension. Thereafter, the resulting suspension is dried. Subsequently, the material obtained is shaped and, finally, the material obtained in the preceding step is sintered.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: September 9, 2014
    Assignee: Consejo Superior de Investigaciones Cientificas (CSIC)
    Inventors: Ramon Torrecillas San Millan, Olga Garcia Moreno, Adolfo Fernandez Valdes
  • Patent number: 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
  • Patent number: 8822044
    Abstract: Ceramic material of the general formula: [SE1-xMIIx][Cr1-y-zRyLz]O3, wherein SE stands for one or more rare earth metals, MII stands for one or more metals of the oxidation state +II, L stands for Al and/or Ga, R stands for one or more metals selected from Fe, Zn, Ge, Sn, and it holds that: 0<x<1; 0<y<1; 0.5<z<1; y+z<1.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: September 2, 2014
    Assignee: EPCOS AG
    Inventors: Danilo Neuber, Adalbert Feltz
  • Patent number: 8822360
    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: Grant
    Filed: January 18, 2012
    Date of Patent: September 2, 2014
    Assignee: United Technologies Corporation
    Inventors: Wayde R. Schmidt, Paul Sheedy, Tania Bhatia Kashyap, Daniel G. Goberman, Xia Tang
  • Publication number: 20140234643
    Abstract: Provided are a thermal expansion suppressing member having negative thermal expansion properties and a metal-based anti-thermally-expansive member having small thermal expansion. More specifically, provided are a thermal expansion suppressing member, including at least an oxide represented by the following general formula (1), and an anti-thermally-expansive member, including a metal having a positive linear expansion coefficient at 20° C., and a solid body including at least an oxide represented by the following general formula (1), the metal and solid being joined to each other: (Bi1-xMx)NiO3 (1) where M represents at least one metal selected from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, and In; and x represents a numerical value of 0.02?x?0.15.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicants: KYOTO UNIVERSITY, CANON KABUSHIKI KAISHA
    Inventors: Makoto Kubota, Kaoru Miura, Hisato Yabuta, Yoshihiko Matsumura, Yuichi Shimakawa, Masaki Azuma
  • Publication number: 20140218840
    Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component using the same, the dielectric composition including dielectric grains having a perovskite structure represented by ABO3, wherein the dielectric grain includes a base material, in which at least one rare earth element RE is solid-solubilized in at least one of A and B, and a transition element TR, and a ratio (TR/RE) of the transition element to the rare earth element is 0.2 to 0.8.
    Type: Application
    Filed: April 26, 2013
    Publication date: August 7, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hyung KANG, Ki Yong LEE, Han Nah CHANG, Du Won CHOI, Jae Hun CHOE, Min Sung SONG
  • Patent number: 8796168
    Abstract: Synthetic sintered YPO4 composite materials comprising excess amount of Y2O3 in the composition and process for making such materials. The Y2O3-modified sintered YPO4 composite material exhibits improved mechanical properties compared to stoichiometric YPO4 materials. The modified YPO4 materials can be used to produce different components used in the glass-making process such as, for example, an isopipe.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: August 5, 2014
    Assignee: Corning Incorporated
    Inventor: Cameron Wayne Tanner
  • 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: 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
  • Patent number: 8758908
    Abstract: Aqueous precursor solutions are described that comprise at least one monazite-based material precursor, at least one xenotime-based material precursor or a combination thereof; and a plurality of fine suspended particles of an oxide material. Contemplated oxide composites, as described herein, comprise a plurality of fibers surrounded by at least one monazite or xenotime-based material, wherein the oxide composite has nearly a fully dense matrix. Contemplated embodiments disclosed herein provides a method for producing an oxide composite with nearly fully dense matrix and with all fibers surrounded by a monazite- or xenotime-based material that prevents embrittlement at temperatures at least as high as 1200° C.
    Type: Grant
    Filed: March 7, 2008
    Date of Patent: June 24, 2014
    Assignee: Teledyne Scientific & Imaging, LLC
    Inventors: David B. Marshall, Janet B. Davis, Peter E. D. Morgan
  • Patent number: 8753749
    Abstract: Provided are a thermal expansion suppressing member having negative thermal expansion properties and a metal-based anti-thermally-expansive member having small thermal expansion. More specifically, provided are a thermal expansion suppressing member, including at least an oxide represented by the following general formula (1), and an anti-thermally-expansive member, including a metal having a positive linear expansion coefficient at 20° C., and a solid body including at least an oxide represented by the following general formula (1), the metal and solid being joined to each other: (Bi1-xMx)NiO3 (1) where M represents at least one metal selected from the group consisting of La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, and In; and x represents a numerical value of 0.02?x?0.15.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: June 17, 2014
    Assignees: Canon Kabushiki Kaisha, Kyoto University
    Inventors: Makoto Kubota, Kaoru Miura, Hisato Yabuta, Yoshihiko Matsumura, Yuichi Shimakawa, Masaki Azuma
  • 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
  • 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
  • Publication number: 20140106957
    Abstract: This disclosure relates to a method of densifying a lanthanide chromite ceramic or a mixture containing a lanthanide chromite ceramic. The method comprises mixing one or more lanthanide chromite ceramics with one or more sintering aids, and sintering the mixture. The one or more lanthanide chromite ceramics are represented by the formula (Ln1-xAEx)zCr1-yByO3-?, wherein Ln is a lanthanide element or yttrium, AE is one or more alkaline earth elements, B is one or more transition metals, x is a value less than 1, y is a value less than or equal to 0.5, and z is a value from 0.8 to 1.2. The sintering aids comprise one or more spinel oxides. The one or more spinel oxides are represented by the formula AB2O4 or A2BO4 wherein A and B are cationic materials having an affinity for B-site occupancy in a lanthanide chromite ceramic structure, e.g., ZnMn2O4, MgMn2O4, MnMn2O4 and CoMn2O4. This disclosure also relates in part to products, e.g., dense ceramic structures produced by the above method.
    Type: Application
    Filed: February 23, 2012
    Publication date: April 17, 2014
    Applicant: PRAXAIR TECHNOLOGY INC
    Inventors: Matthew M. Seabaugh, Scott Lawrence Swartz
  • Patent number: 8696925
    Abstract: Embodiments disclosed herein include methods of modifying synthetic garnets used in RF applications to reduce or eliminate Yttrium or other rare earth metals in the garnets without adversely affecting the magnetic properties of the material. Some embodiments include substituting Bismuth for some of the Yttrium on the dodecahedral sites and introducing one or more high valency ions to the octahedral and tetrahedral sites. Calcium may also be added to the dodecahedral sites for valency compensation induced by the high valency ions, which could effectively displace all or most of the Yttrium (Y) in microwave device garnets. The modified synthetic garnets with substituted Yttrium (Y) can be used in various microwave magnetic devices such as circulators, isolators and resonators.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: April 15, 2014
    Assignee: Skyworks Solutions, Inc.
    Inventors: David Bowie Cruickshank, Michael D. Hill
  • Patent number: 8697176
    Abstract: The present invention relates to a method for changing translucency of zirconia dental materials through applying an yttrium or ytterbium salt solution onto a pre-sintered zirconia material by dipping or brush-coating. Accordingly, the need of young patient in relation to the translucent requirement for incisal portion of anterior teeth is met in which the translucent level from the crown neck to the incisal portion is gradually changed in a natural manner, similar to natural teeth. A color gradient effect of the crown is produced through dipping in or brush-coating with yttrium or ytterbium salt solution. Moreover, the present invention involves simple operating steps and low cost while providing high consistency in quality.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 15, 2014
    Assignee: Liaoning Upcera Co., Ltd.
    Inventors: Hongjuan Wang, Qingyun Yan, Lingling He, Yanchun Zheng
  • Publication number: 20140098457
    Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectric composition including a dielectric grain having a perovskite structure represented by ABO3, wherein the dielectric grain has a core-shell structure in which a content of an additive in a shell is 15% or less, based on an average content of the additive distributed throughout the dielectric grain, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 10, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hyung KANG, Jae Sung PARK, Sang Huk KIM
  • Publication number: 20140098455
    Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectirc composition including dielectric grains having a perovskite structure represented by ABO3, a portion of the dielectric grains having a core-shell structure, wherein dielectric grains having an average length of a core equal to or less than 250 nm and a ratio of the average length of the core to an average length of the dielectric grain below 0.8 may be 50% or more of the portion of dielectric grains having a core-shell structure, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 10, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: SUNG HYUNG KANG, DU WON CHOI, MIN SUNG SONG
  • Publication number: 20140094357
    Abstract: Provided is a method of manufacturing a transparent sesquioxide sintered body by which a transparent M2O3 type sesquioxide sintered body can be manufactured. A powder including particles of an oxide of at least one rare earth element selected from Y, Sc or lanthanide elements and Zr oxide particles is prepared as a raw material powder, wherein in the particle size distribution of the rare earth element oxide particles, or in the particle size distribution of secondary particles in the case where the rare earth element oxide particles are agglomerated to form the secondary particles, the particle diameter D2.5 value at which the cumulative particle amount from the minimum particle size side is 2.5% based on the total particle amount is in the range from 180 nm to 2000 nm, inclusive. The raw material powder is press molded into a predetermined shape, followed by sintering.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 3, 2014
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Masanori IKARI, Yoshihiro NOJIMA, Shinji MAKIKAWA, Akio IKESUE
  • Publication number: 20140092525
    Abstract: There are provided a dielectric composition and a multilayer ceramic electronic component manufactured using the same, the dielectric composition including a dielectric grain having a perovskite structure represented by ABO3, wherein, when an imaginary line is drawn in a direction from a center of the dielectric grain to a grain boundary thereof, a content of rare earth elements in a region corresponding to 0.75 to 0.95% of the dielectric grain from the center of the dielectric grain may be 0.5 to 2.5 at %, based on 100 at % of a B-site ion, so that the multilayer ceramic electronic component manufactured using the dielectric composition can have excellent reliability and secure a high dielectric constant.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 3, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sung Hyung KANG, Doo Young KIM, Chang Hak CHOI
  • Patent number: 8679998
    Abstract: Initially, an Yb2O3 raw material was subjected to uniaxial pressure forming at a pressure of 200 kgf/cm2, so that a disc-shaped compact having a diameter of about 35 mm and a thickness of about 10 mm was produced, and was stored into a graphite mold for firing. Subsequently, firing was performed by using a hot-press method at a predetermined firing temperature (1,500° C.), so as to obtain a corrosion-resistant member for semiconductor manufacturing apparatus. The press pressure during firing was specified to be 200 kgf/cm2 and an Ar atmosphere was kept until the firing was finished. The retention time at the firing temperature (maximum temperature) was specified to be 4 hours. In this manner, the corrosion-resistant member for semiconductor manufacturing apparatus made from an Yb2O3 sintered body having an open porosity of 0.2% was obtained.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: March 25, 2014
    Assignee: NGK Insulators, Ltd.
    Inventors: Morimichi Watanabe, Yuji Katsuda, Toru Hayase, Asumi Jindo
  • Publication number: 20140066287
    Abstract: A sintered aluminum nitride substrate having a thermal conductivity of about 60 W/m-K to about 150 W/m-K, a flexural strength of about 200 MPa to about 325 MPa, a volume resistivity of greater than 1010 Ohm cm, a density of at least about 95% of theoretical, optionally at least 97%, and a reflectance factor of at least about 60% substantially over the wavelength range of 360 nm to 820 nm. A low temperature process for sintering aluminum nitride includes providing an AlN sintering formulation of AlN powder and a sintering aid of yttria, calcia, and optionally added alumina, forming the AlN sintering formulation into a green body, and sintering the green body at a temperature of about 1675° C. to 1750° C.
    Type: Application
    Filed: March 13, 2013
    Publication date: March 6, 2014
    Inventors: Jonathan H. HARRIS, Thomas NEMECEK, Robert TESCH