Coating Patents (Class 505/470)
  • Patent number: 9023764
    Abstract: According to one embodiment, an oxide superconductor includes an oriented superconductor layer and an oxide layer. The oriented superconductor layer contains fluorine at 2.0×1016-5.0×1019 atoms/cc and carbon at 1.0×1018-5.0×1020 atoms/cc. The superconductor layer contains in 90% or more a portion oriented along c-axis with an in-plane orientation degree (??) of 10 degrees or less, and contains a LnBa2Cu3O7-x superconductor material (Ln being yttrium or a lanthanoid except cerium, praseodymium, promethium, and lutetium). The oxide layer is provided in contact with a lower surface of the superconductor layer and oriented with an in-plane orientation degree (??) of 10 degrees or less with respect to one crystal axis of the superconductor layer. Area of a portion of the lower surface of the superconductor layer in contact with the oxide layer is 0.3 or less of area of a region directly below the superconductor layer.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: May 5, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Araki, Mariko Hayashi, Ko Yamada, Hiroyuki Fuke
  • Publication number: 20150119252
    Abstract: Various techniques and apparatus permit fabrication of superconductive circuits. A niobium/aluminum oxide/niobium trilayer may be formed and individual Josephson Junctions (JJs) formed. A protective cap may protect a JJ during fabrication. A hybrid dielectric may be formed. A superconductive integrated circuit may be formed using a subtractive patterning and/or additive patterning. A superconducting metal layer may be deposited by electroplating and/or polished by chemical-mechanical planarization. The thickness of an inner layer dielectric may be controlled by a deposition process. A substrate may include a base of silicon and top layer including aluminum oxide. Depositing of superconducting metal layer may be stopped or paused to allow cooling before completion. Multiple layers may be aligned by patterning an alignment marker in a superconducting metal layer.
    Type: Application
    Filed: March 7, 2013
    Publication date: April 30, 2015
    Inventors: Eric Ladizinsky, Jeremy P. Hilton, Byong Hyop Oh, Paul I. Bunyk
  • Patent number: 9014768
    Abstract: A method for producing a superconductive conductor includes: a base material preparation process of preparing a base material having a groove formed on at least one face thereof; a superconducting layer formation process of forming a superconducting layer on a surface of the base material at a side at which the groove is formed; and a cutting process of cutting completely through the base material along the groove.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: April 21, 2015
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Yoshinori Nagasu, Hisaki Sakamoto, Masaru Higuchi
  • Publication number: 20150105261
    Abstract: An oxide superconducting thin film wherein nanoparticles functioning as flux pins are dispersed in the film is provided. The oxide superconducting thin film wherein the nanoparticles in the oxide superconducting thin film have a dispersing density of 1020 particles/m3 to 1024 particles/m3 is provided. The oxide superconducting thin film wherein the nanoparticles have a particle diameter of 5 nm to 100 nm is provided. A method of manufacturing an oxide superconducting thin film wherein a predetermined amount of a solution obtained by dissolving nanoparticles functioning as flux pins in a solvent is added to a solution obtained by dissolving an organometallic compound in a solvent to prepare a source material solution for an oxide superconducting thin film, and the source material solution is used to manufacture the oxide superconducting thin film through a coating-pyrolysis process is provided.
    Type: Application
    Filed: May 31, 2012
    Publication date: April 16, 2015
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Tatsuoki Nagaishi, Genki Honda, Iwao Yamaguchi, Takaaki Manabe, Takeshi Hikata, Hiroaki Matsui, Wakichi Kondo, Hirofumi Yamasaki, Toshiya Kumagai
  • Publication number: 20150099641
    Abstract: The present invention provides a method for manufacturing an electrode of a lithium battery electrode, comprising: (a) providing a substrate; (b) coating a paste on a portion of the substrate; (c) plating a metal film onto the paste or the substrate; (d) disposing a welding point at an end of the substrate; wherein the advantages of the present invention are to conduct current in three-dimensional direction and reduce the problem of electric conductivity because of thermal effect. In addition, the present invention can further avoid the problem of the electrode oxidation.
    Type: Application
    Filed: April 10, 2014
    Publication date: April 9, 2015
    Inventor: Christine Jill LEE
  • Patent number: 8993064
    Abstract: Provided are a substrate for a superconducting compound and a method for manufacturing the substrate which can realize the excellent adhesive strength simultaneously with high orientation of copper. An absorbed material on a surface of a copper foil to which rolling is applied at a draft of 90% or more is removed by applying sputter etching to the surface of the copper foil, sputter etching is applied to a nonmagnetic metal sheet, the copper foil and the metal sheet are bonded to each other by applying a pressure to the copper foil and the metal sheet using reduction rolls, crystals of the copper in the copper foil are oriented by heating a laminated body formed by such bonding, copper is diffused into the metal sheet by heating with a copper diffusion distance of 10 nm or more, and a protective layer is laminated to a surface of the copper foil of the laminated body.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: March 31, 2015
    Assignees: Toyo Kohan Co., Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Hironao Okayama, Kouji Nanbu, Akira Kaneko, Hajime Ota, Kotaro Ohki, Takashi Yamaguchi, Kazuhiko Hayashi, Kazuya Ohmatsu
  • Patent number: 8980797
    Abstract: A method for manufacturing a base material 2 for a superconductive conductor which includes: a conductive bed layer forming process of forming a non-oriented bed layer 24 having conductivity on a substrate 10; and a biaxially oriented layer forming process of forming a biaxially oriented layer 26 on the bed layer 24.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: March 17, 2015
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Yoshikazu Okuno, Hiroyuki Fukushima, Yuko Hayase, Eiji Kojima
  • Publication number: 20150072863
    Abstract: Known processes for the production of nanoparticles of compounds of the transition metals Zr, Ti, Ta, rare earths (RE), Mn, and Fe via microemulsions lead to products that contain impurities from the reactants, particularly water, which make the further use of said nanoparticles difficult, for instance in high-temperature super conductors (HTSC). It is proposed that the nanoparticles be produced via anhydrous microemulsions having an outer phase composed of a nonpolar solvent and inner phase composed of a polar anhydrous solvent. The nanoparticles thus obtained exhibit good monodispersity and can be used in the production of REBa2Cu3O7 super conductors by incorporation into the precursor coating solution.
    Type: Application
    Filed: March 20, 2013
    Publication date: March 12, 2015
    Applicant: BASF SE
    Inventors: Thomas Freudenberg, Bernhard Holzapfel, Oliver Brunkahl, Michael Baecker
  • Patent number: 8965469
    Abstract: Disclosed are an oxide superconductor tape and a method of manufacturing the oxide superconductor tape capable of improving the length and characteristics of superconductor tape and obtaining stabilized characteristics across the entire length thereof. A Y-class superconductor tape (10), as an oxide superconductor tape, comprises a tape (13) further comprising a tape-shaped non-oriented metallic substrate (11), and a first buffer layer (sheet layer) (12) that is formed by IBAD upon the tape-shaped non-oriented metallic substrate (11); and a second buffer layer (gap layer) (14), further comprising a lateral face portion (14a) that is extended to the lateral faces of the first buffer layer (sheet layer) (12) upon the tape (13) by RTR RF-magnetron sputtering.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: February 24, 2015
    Assignee: SWCC Show Cable Systems Co., Ltd.
    Inventors: Tatsuhisa Nakanishi, Yuji Aoki, Tsutomu Koizumi, Atsushi Kaneko, Takayo Hasegawa
  • Publication number: 20150045231
    Abstract: There is described herein a superconducting segment and method of making same comprising one or several layers with very high electrical resistivity, acting as a current flow diverter when the current transfers from the superconductor to the stabilizer. The purpose of this current flow diverter is: i) to increase the contact resistance between the superconductor and the stabilizer, by reducing the contact area, and ii) to force the current to flow along a specific path, so as to increase momentarily the current density in a specific portion of the stabilizer. The consequence of i) and ii) is that heat generated at the extremities of the normal zone is increased and spread over a longer length along the superconducting segment, which increases the NZPV and thus, the uniformity of the quench.
    Type: Application
    Filed: February 1, 2013
    Publication date: February 12, 2015
    Inventors: Christian Lacroix, Frederic Sirois, Michael Robert Wertheimer
  • Patent number: 8954125
    Abstract: Low-loss superconducting devices and methods for fabricating low loss superconducting devices. For example, superconducting devices, such as superconducting resonator devices, are formed with a (200)-oriented texture titanium nitride (TiN) layer to provide high Q, low loss resonator structures particularly suitable for application to radio-frequency (RF) and/or microwave superconducting resonators, such as coplanar waveguide superconducting resonators. In one aspect, a method of forming a superconducting device includes forming a silicon nitride (SiN) seed layer on a substrate, and forming a (200)-oriented texture titanium nitride (TiN) layer on the SiN seed layer.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: February 10, 2015
    Assignees: International Business Machines Corporation, The United States of America, as represented by the Secretary of Commerce, The National Institute of Standards
    Inventors: Antonio D. Corcoles Gonzalez, Jiansong Gao, Dustin A. Hite, George A. Keefe, David P. Pappas, Mary E. Rothwell, Matthias Steffen, Chang C. Tsuei, Michael R. Vissers, David S. Wisbey
  • Patent number: 8927461
    Abstract: Provided is a substrate for superconductive film formation, which includes a metal substrate, and an oxide layer formed directly on the metal substrate, containing chromium oxide as a major component and having a thickness of 10-300 nm and an arithmetic average roughness Ra of not more than 50 nm. A method of manufacturing a substrate for superconductive film formation, which includes forming an oxide layer directly on a metal substrate, the oxide layer containing chromium oxide as a major component and having a thickness of 10-300 nm and an arithmetic average roughness Ra of not more than 50 nm.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: January 6, 2015
    Assignees: International Superconductivity Technology Center, Furukawa Electric Co., Ltd., Japan Fine Ceramics Center
    Inventors: Seiki Miyata, Hiroyuki Fukushima, Reiji Kuriki, Akira Ibi, Masateru Yoshizumi, Akio Kinoshita, Yutaka Yamada, Yuh Shiohara, Ryuji Yoshida, Takeharu Kato, Tsukasa Hirayama
  • Patent number: 8921276
    Abstract: The phase transition temperature, at which the crystal lattice of LMO that constitutes an oxide layer as an intermediate layer or as a part of an intermediate layer becomes cubic, is lowered. A substrate for a superconducting wire rod includes an oxide layer (LMO layer (22)) which contains, as a principal material, a crystalline material represented by the compositional formula: Laz(Mn1?xMx)wO3+? (wherein M represents at least one of Cr, Al, Co or Ti, ? represents an oxygen non-stoichiometric amount, 0<w/z<2, and 0<x?1).
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: December 30, 2014
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Masayasu Kasahara, Hiroyuki Fukushima, Yoshikazu Okuno, Yuko Hayase
  • Patent number: 8918152
    Abstract: Disclosed are devices comprising multiple nanogaps having a separation of less than about 5 nm. Also disclosed are methods for fabricating these devices.
    Type: Grant
    Filed: February 13, 2008
    Date of Patent: December 23, 2014
    Assignee: The Trustees Of The University Of Pennsylvania
    Inventors: Douglas R. Strachan, Danvers E. Johnston, Beth S. Guiton, Peter K. Davies, Dawn A. Bonnell, Alan T. Johnson, Jr.
  • Patent number: 8912126
    Abstract: A substrate of the present invention includes a copper layer, an alloy layer containing copper and nickel, formed on the copper layer, a nickel layer formed on the alloy layer, and an intermediate layer formed on the nickel layer. The concentration of nickel in the alloy layer at the interface between the alloy layer and the nickel layer is greater than the concentration of nickel in the alloy layer at the interface between the alloy layer and the copper layer. According to the present invention, there can be provided a substrate that allows the AC loss of a superconducting wire to be reduced, a method of producing a substrate, a superconducting wire, and a method of producing a superconducting wire.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: December 16, 2014
    Assignees: Sumitomo Electric Industries, Ltd., Toyo Kohan Co., Ltd.
    Inventors: Takashi Yamaguchi, Masaya Konishi, Hajime Ota
  • Publication number: 20140364319
    Abstract: In some implementations of the invention, existing extremely low resistance materials (“ELR materials”) may be modified and/or new ELR materials may be created by enhancing (in the case of existing ELR materials) and/or creating (in the case of new ELR materials) an aperture within the ELR material such that the aperture is maintained at increased temperatures so as not to impede propagation of electrical charge there through. In some implementations of the invention, as long as the propagation of electrical charge through the aperture remains unimpeded, the material should remain in an ELR state; otherwise, as the propagation of electrical charge through the aperture becomes impeded, the ELR material begins to transition into a non-ELR state.
    Type: Application
    Filed: February 28, 2014
    Publication date: December 11, 2014
    Applicant: Ambature, Inc.
    Inventor: Douglas J. Gilbert
  • Publication number: 20140329686
    Abstract: The invention pertains to creating new extremely low resistance (“ELR”) materials, which may include high temperature superconducting (“HTS”) materials. In some implementations of the invention, an ELR material may be modified by depositing a layer of modifying material unto the ELR material to form a modified ELR material. The modified ELR material has improved operational characteristics over the ELR material alone. Such operational characteristics may include operating at increased temperatures or carrying additional electrical charge or other operational characteristics. In some implementations of the invention, the ELR material is a cuprate-perovskite, such as, but not limited to BSCCO. In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium.
    Type: Application
    Filed: March 3, 2014
    Publication date: November 6, 2014
    Applicant: Ambature, Inc.
    Inventors: Douglas J. Gilbert, Timothy S. Cale
  • Patent number: 8865628
    Abstract: Provided is a coating solution where, upon producing a rare-earth superconductive composite metal oxide film by means of a coating-pyrolysis method, cracks are not generated in the heat treatment process for eliminating organic components, even when the thickness of the rare-earth superconductive film produced in a single coating is 500 nm or more, and without having to repeat the coating and annealing process. A solution for producing a rare-earth superconductive film which is made into a homogeneous solution by dissolving, in a solvent formed by adding a polyhydric alcohol to a univalent linear alcohol having a carbon number of 1 to 8 and/or water, a metal complex coordinated, relative to metal ions of a metallic species containing rare-earth elements, barium and copper, with pyridine and/or at least one type of tertiary amine, at least one type of carboxylic acid having a carbon number of 1 to 8, and, as needed, an acetylacetonato group.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: October 21, 2014
    Assignee: National Institute of Advanced Industrial Science and Technology
    Inventors: Takaaki Manabe, Iwao Yamaguchi, Toshiya Kumagai, Mitsugu Sohma, Wakichi Kondou, Kenichi Tsukada
  • Publication number: 20140287928
    Abstract: A method for manufacturing a superconducting wire includes the following steps. A laminate metal having a first metal layer and a Ni layer formed on the first metal layer is prepared. An intermediate layer (20) is formed on the Ni layer of the laminate metal. A superconducting layer (30) is formed on the intermediate layer (20). By subjecting the laminate metal to a heat treatment after at least either of the step of forming a intermediate layer (20) and the step of forming a superconducting layer (30), a nonmagnetic Ni alloy layer (12) is formed from the laminate metal.
    Type: Application
    Filed: November 27, 2013
    Publication date: September 25, 2014
    Applicants: TOYO KOHAN CO., LTD., Sumitomo Electric Industries, Ltd.
    Inventor: Hajime Ota
  • Publication number: 20140249034
    Abstract: A superconducting element for a superconducting fault current limiter, including a substrate 32, an intermediate layer 34 that is formed on the substrate 32, a superconducting layer 36 that is formed on the intermediate layer 34, an electrode 44 that is connected to the superconducting layer 36, and a metal fine particle sintered layer 40 that is interposed between the superconducting layer 36 and the electrode 44 and connects the superconducting layer 36 and the electrode 44.
    Type: Application
    Filed: November 22, 2013
    Publication date: September 4, 2014
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Tomohiro NAKAYAMA, Weiming ZHOU, Hajime KASAHARA, Kengo NAKAO, Akifumi NAKAJIMA, Masakazu MATSUI
  • Patent number: 8805462
    Abstract: A process applies a polymer to at least one individual conductor of a high-temperature superconductor (HTS) composite in the manner of a Roebel conductor. The at least one individual conductor includes a substrate and a superconducting layer. Particles are applied to the individual conductor. Then, a thermal treatment is performed which results in partial or complete melting of the particles and, after cooling, in a polymer layer on the individual conductor.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: August 12, 2014
    Assignee: Siemens Aktiengesellschaft
    Inventor: Tabea Arndt
  • Patent number: 8798696
    Abstract: A multilayer superconducting wire 7 with essentially round cross sectional area where the outer surface of the round wire is provided with a high temperature superconductor layer 3 and where at least the high temperature superconductor layer 3 is fabricated as a spiral running along the length of the superconductor wire 7 in parallel lanes 15.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: August 5, 2014
    Assignee: Nexans
    Inventors: Florian Steinmeyer, Mark Rikel, Jürgen Ehrenberg, Steffen Elschner
  • Patent number: 8796181
    Abstract: The invention pertains to creating new extremely low resistance (“ELR”) materials, which may include high temperature superconducting (“HTS”) materials. In some implementations of the invention, an ELR material may be modified by depositing a layer of modifying material unto the ELR material to form a modified ELR material. The modified ELR material has improved operational characteristics over the ELR material alone. Such operational characteristics may include operating at increased temperatures or carrying additional electrical charge or other operational characteristics. In some implementations of the invention, the ELR material is a cuprate-perovskite, such as, but not limited to YBCO. In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: August 5, 2014
    Assignee: Digital Signal Corporation
    Inventors: Douglas J. Gilbert, Timothy S. Cale
  • Patent number: 8759257
    Abstract: Operational characteristics of an high temperature superconducting (“HTS”) film comprised of an HTS material may be improved by depositing a modifying material onto appropriate surfaces of the HTS film to create a modified HTS film. In some implementations of the invention, the HTS film may be in the form of a “c-film.” In some implementations of the invention, the HTS film may be in the form of an “a-b film,” an “a-film” or a “b-film.” The modified HTS film has improved operational characteristics over the HTS film alone or without the modifying material. Such operational characteristics may include operating in a superconducting state at increased temperatures, carrying additional electrical charge, operating with improved magnetic properties, operating with improved mechanic properties or other improved operational characteristics. In some implementations of the invention, the HTS material is a mixed-valence copper-oxide perovskite, such as, but not limited to YBCO.
    Type: Grant
    Filed: October 2, 2010
    Date of Patent: June 24, 2014
    Assignee: Ambature, Inc.
    Inventors: Douglas J. Gilbert, Timothy S. Cale
  • Publication number: 20140162884
    Abstract: Described is a superconductive layered structure and an article including this superconductive layered structure on a substrate structure. The superconductive layered structure comprises a stack including at least one bi-layered assembly formed by first and second layers of similar superconducting material compositions, the second layer being superconductive at predetermined temperature condition, the first layer being a substantially thin layer and having a c lattice parameter selected in accordance with those of the substrate structure and the second layer, such that said first layer is non-superconductive at said predetermined temperature condition thereby allowing the second superconductive layer to be desirably thick to provide high critical current density of the superconductive layer.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 12, 2014
    Applicant: Ramot at Tel-Aviv University Ltd.
    Inventors: Guy DEUTSCHER, Mishael AZOULAY, Boaz ALMOG
  • Patent number: 8716189
    Abstract: A method of producing a superconductive material involves the step (1) of applying a solution of an organic compound of metals, oxides of the metals forming a superconductive material, onto a support body to be subsequently dried, a provisional baking step (2) of causing organic components of the organic compound of the metals to undergo thermal decomposition, and a main baking process step (3) of causing transformation of the oxides of the metals into the superconductive material, thereby producing an epitaxially-grown superconductive coating material, wherein at the time of irradiation of a surface of the support body coated with the solution of the organic compound of the metals for forming the superconductive material, and/or of a surface of the support body, opposite to the surface coated with the solution of the organic compound of the metals, with the laser light, during a period between the steps (1) and (2).
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: May 6, 2014
    Assignees: National Institute of Advanced Industrial Science and Technology, The Japan Steel Works, Ltd.
    Inventors: Mitsugu Sohma, Tetsuo Tsuchiya, Toshiya Kumagai, Kenichi Tsukada, Kunihiko Koyanagi, Takashi Ebisawa, Hidehiko Ohtu
  • Patent number: 8703651
    Abstract: A composition of matter for a layered ionic superconductor comprising a plurality of layers of ions and electronic interaction charges, and having a substantially improved superconducting transition temperature is described. An aspect of the composition includes a first layer comprising a plurality of alkali ions and cesium ions in particular that is adjacent to a second layer comprising a plurality of halogen ions and fluorine ions in particular. The first and second layers contain electronic interaction charges and are separated by a predetermined perpendicular distance. Crystalline structure, ionic properties, superconducting transition temperature, and superfluid density for several embodiments including companion ionic species are described and illustrated. Methods for preparing the several embodiments are provided.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: April 22, 2014
    Inventors: Dale Richard Harshman, Anthony Thomas Fiory
  • Publication number: 20140066311
    Abstract: Provided is a method for manufacturing an oxide superconductor, including preparing a coating solution containing alcohols including methanol as a solvent, the coating solution dissolving fluorocarboxylic acid salts including trifluoroacetates, the trifluoroacetates including a metal, barium and copper, the metal being selected from yttrium and lanthanoid metals (provided that cerium, praseodymium, promethium, and ruthenium are excluded); adding a substance of formula: CF2H—(CF2)n—COOH or HOCO—(CF2)m—COOH (wherein n and m represent positive integers) as a crack preventing chemical to the coating solution; forming a gel film on a substrate using the coating solution having the crack preventing chemical added thereto; forming a calcined film by calcining the gel film at an oxygen partial pressure of 3% or less in a process that is maintained at 200° C. or higher for a total time of 7 hours or less; and forming an oxide superconductor film by firing and oxygen anneal of the calcined film.
    Type: Application
    Filed: August 12, 2013
    Publication date: March 6, 2014
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takeshi ARAKI, Mariko Hayashi, Hiroyuki Fuke
  • Patent number: 8658571
    Abstract: The invention relates to a method for the wet chemical production of an HTSL on a carrier, wherein an HTSL precursor solution comprising no trifluoroacetate may be utilized if the same is heated to a temperature Ts during the heat treatment of the HTSL precursor, wherein the remaining substances of the HTSL precursor solution form at least a partial melt, which is below the temperature at which RE2BaCuOx is formed, and which is deposited from the liquid phase while forming a peritectic.
    Type: Grant
    Filed: March 18, 2010
    Date of Patent: February 25, 2014
    Assignee: BASF SE
    Inventors: Isabel van Driessche, Pieter Vermeir, Serge Hoste, Michael Baecker
  • Patent number: 8653005
    Abstract: This invention provides a method of making a fluorinated precursor of a superconducting ceramic. The method comprises providing a solution comprising a rare earth salt, an alkaline earth metal salt and a copper salt; spraying the solution onto a substrate to provide a film-covered substrate; and heating the film-covered substrate in an atmosphere containing fluorinated gas to provide the fluorinated precursor.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: February 18, 2014
    Assignee: Brookhaven Science Associates, LLC
    Inventors: Harold Wiesmann, Vyacheslav Solovyov
  • Publication number: 20140031236
    Abstract: According to one embodiment, an oxide superconductor includes an oriented superconductor layer and an oxide layer. The oriented superconductor layer contains fluorine at 2.0×1016-5.0×1019 atoms/cc and carbon at 1.0×1018-5.0×1020 atoms/cc. The superconductor layer contains in 90% or more a portion oriented along c-axis with an in-plane orientation degree (??) of 10 degrees or less, and contains a LnBa2Cu3O7-x superconductor material (Ln being yttrium or a lanthanoid except cerium, praseodymium, promethium, and lutetium). The oxide layer is provided in contact with a lower surface of the superconductor layer and oriented with an in-plane orientation degree (??) of 10 degrees or less with respect to one crystal axis of the superconductor layer. Area of a portion of the lower surface of the superconductor layer in contact with the oxide layer is 0.3 or less of area of a region directly below the superconductor layer.
    Type: Application
    Filed: February 14, 2013
    Publication date: January 30, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: KABUSHIKI KAISHA TOSHIBA
  • Publication number: 20140011683
    Abstract: A composition of matter for a layered ionic superconductor comprising a plurality of layers of ions and electronic interaction charges, and having a substantially improved superconducting transition temperature is described. An aspect of the composition includes a first layer comprising a plurality of alkali ions and cesium ions in particular that is adjacent to a second layer comprising a plurality of halogen ions and fluorine ions in particular. The first and second layers contain electronic interaction charges and are separated by a predetermined perpendicular distance. Crystalline structure, ionic properties, superconducting transition temperature, and superfluid density for several embodiments including companion ionic species are described and illustrated. Methods for preparing the several embodiments are provided.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 9, 2014
    Inventors: Dale Richard Harshman, Anthony Thomas Fiory
  • Patent number: 8623788
    Abstract: The present invention provides a method of making a high temperature superconductor having a doped, nanoparticulate pinning structure. The method includes providing a nanoparticulate pinning material, providing a cuprate material, doping the nanoparticulate pinning material with a dopant to form a doped nanoparticulate material, depositing a layer of the cuprate material on a substrate, and depositing a layer of the doped nanoparticulate material on the layer of cuprate material. The invention also provides a high temperature superconductor (HTS) having a doped, nanoparticulate pinning structure including a plurality of layers of a cuprate material and a plurality of layers of a doped nanoparticulate pinning material. At least one layer of the doped nanoparticulate pinning material is stacked between two layers of the cuprate material.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: January 7, 2014
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Paul N. Barnes, Timothy J. Haugan
  • Patent number: 8609593
    Abstract: Operational characteristics of an extremely low resistance (“ELR”) film comprised of an ELR material may be improved by depositing a modifying material onto appropriate surfaces of the ELR film to create a modified ELR film. In some implementations of the invention, the ELR film may be in the form of a “c-film.” In some implementations of the invention, the ELR film may be in the form of an “a-b film,” an “a-film” or a “b-film.” The modified ELR film has improved operational characteristics over the ELR film alone or without the modifying material. Such operational characteristics may include operating in an ELR state at increased temperatures, carrying additional electrical charge, operating with improved magnetic properties, operating with improved mechanic properties or other improved operational characteristics. In some implementations of the invention, the ELR material is a mixed-valence copper-oxide perovskite, such as, but not limited to YBCO.
    Type: Grant
    Filed: October 2, 2010
    Date of Patent: December 17, 2013
    Assignee: Ambature, Inc.
    Inventors: Douglas J. Gilbert, Timothy S. Cale
  • Publication number: 20130324414
    Abstract: Catalytically active (001) ceria substrates or buffers are used to modify the structure of the epitaxial high temperature superconductor YBa2Cu3O7. The catalytically active substrate has a small lateral grain size, typically less than 50 nm, to provide a high density of nucleation sites, at some of which nucleate a previously unknown metastable phase. The modification is achieved by catalytically assisted synthesis of the metastable phase. The new phase, a long-period (3.5-nm) perovskite, intercalates into the YBa2Cu3O7 matrix without negatively affecting the critical temperature of the film. Analysis of electron microscopy and synchrotron X-ray diffraction data allow identification of the phase as a long-period YBa2Cu3O7 derivative formed through short-range cation displacement. The films, from about 100-nm to about 1000-nm thick, exhibit strong enhancement of the critical current density, reaching a maximum of approximately 4.2 MA/cm2 at 77 K.
    Type: Application
    Filed: August 4, 2011
    Publication date: December 5, 2013
    Applicant: BROOKHAVEN SCIENCE ASSOCIATES, LLC
    Inventors: Vyacheslav F. Solovyov, Qiang Li
  • Patent number: 8586506
    Abstract: Methods of producing one or more biaxially textured layer on a substrate, and articles produced by the methods, are disclosed. An exemplary method may comprise electrodepositing on the substrate a precursor material selected from the group consisting of rare earths, transition metals, actinide, lanthanides, and oxides thereof. An exemplary article (150) may comprise a biaxially textured base material (130), and at least one biaxially textured layer (110) selected from the group consisting of rare earths, transition metals, actinides, lanthanides, and oxides thereof. The at least one biaxially textured layer (110) is formed by electrodeposition on the biaxially textured base material (130).
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: November 19, 2013
    Assignee: Alliance for Sustainable Energy, LLC
    Inventors: Raghu N. Bhattacharya, Sovannary Phok, Priscila Spagnol, Tapas Chaudhuri
  • Patent number: 8530391
    Abstract: A device for coating at least one substrate or for producing at least one molding by means of at least one cold gas spraying pistol, wherein the cold gas spraying pistol and the substrate or molding to be coated are arranged in a vacuum chamber, and also a method for cold gas spraying relating thereto in such a manner that while eliminating the wire production, the coil winding and also the cast in procedure, a thoroughly compact coil without a degree of freedom of movement (elimination of the quench risk) can be produced, it is suggested that the particles have at least to some extent an electrically conducting, in particular superconducting, property and at least to some extent an electrically poorly conducting or electrically insulating property.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: September 10, 2013
    Assignee: Linde Aktiengesellschaft
    Inventor: Matthias Bohn
  • Patent number: 8522420
    Abstract: A method for successfully heat treating magnet coils of braided Bi2Sr2Ca1Cu2Ox (Bi-2212) strand. The Bi-2212 coil is fabricated using standard round wire powder-in-tube techniques, and braided with a ceramic-glass braid with integrated carbonaceous binder. The coil is heated in an atmosphere controlled furnace below the high current density phase reaction sequence to burn off the carbonaceous binder and evacuated to remove unwanted gases from the inner windings. The oxygen environment is then reintroduced and the coil is heat treated to the high Jc reaction temperature and then processed as normal. As the local atmosphere around the surface of the wire, particularly the concentration of oxygen, is critical to a successful reaction sequence, high current Bi-2212 coils can thereby be obtained.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: September 3, 2013
    Assignee: Oxford Superconducting Technology, Inc.
    Inventors: Seung Hong, Hanping Maio, Huang Yibing, Maarten Meinesz, Michael Field
  • Publication number: 20130196856
    Abstract: In some embodiments of the invention, superconducting structures are described. In certain embodiments the superconducting structures described are thin films of iron-based superconductors on textured substrates; in some aspects a method for producing thin films of iron-based superconductors on textured substrates is disclosed. In some embodiments applications of thin films of iron-based superconductors on textured substrates are described. Also contemplated is the formation of a film of iron-based superconductor having a thickness and an in-plane lattice constant formed on a textured substrate having a thickness and an in-plane lattice constant similar to the in-plane lattice constant of the iron-based superconductor.
    Type: Application
    Filed: August 2, 2011
    Publication date: August 1, 2013
    Applicant: BROOKHAVENSCIENCE ASSOICATES, LLC
    Inventors: Qiang Li, Weidong Si
  • Publication number: 20130196858
    Abstract: The invention pertains to creating new extremely low resistance (“ELR”) materials, which may include high temperature superconducting (“HTS”) materials. In some implementations of the invention, an ELR material may be modified by depositing a layer of modifying material unto the ELR material to form a modified ELR material. The modified ELR material has improved operational characteristics over the ELR material alone. Such operational characteristics may include operating at increased temperatures or carrying additional electrical charge or other operational characteristics. In some implementations of the invention, the ELR material is a cuprate-perovskite, such as, but not limited to BSSCO. In some implementations of the invention, the modifying material is a conductive material that bonds easily to oxygen, such as, but not limited to, chromium.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 1, 2013
    Applicant: Ambature, LLC
    Inventor: Ambature, LLC
  • Publication number: 20130190188
    Abstract: A method for manufacturing a base material 2 for a superconductive conductor which includes: a conductive bed layer forming process of forming a non-oriented bed layer 24 having conductivity on a substrate 10; and a biaxially oriented layer forming process of forming a biaxially oriented layer 26 on the bed layer 24.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 25, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshikazu Okuno, Hiroyuki Fukushima, Yuko Hayase, Eiji Kojima
  • Publication number: 20130157864
    Abstract: A integrated circuit and methods for fabricating the circuit are provided. The circuit integrates at least one circuit element formed from a material that is superconducting at temperatures less than one hundred milliKelvin and at least one resistor connected to the circuit element. The resistor is formed from an alloy of transition metals that is resistive at temperatures less than one hundred milliKelvin.
    Type: Application
    Filed: December 19, 2011
    Publication date: June 20, 2013
    Inventors: John J. Talvacchio, Erica C. Folk, Sean R. McLaughlin, David J. Phillips
  • Patent number: 8465793
    Abstract: A process for preparing a shaped substrate suitable in the production of coated conductors which process allows the deformation of a textured substrate onto which a textured buffer layer has been already grown.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: June 18, 2013
    Assignee: Nexans
    Inventors: Jürgen Ehrenberg, Mark Rikel
  • Publication number: 20130137579
    Abstract: A method for producing a superconductive conductor includes: a base material preparation process of preparing a base material having a groove formed on at least one face thereof; a superconducting layer formation process of forming a superconducting layer on a surface of the base material at a side at which the groove is formed; and a cutting process of cutting completely through the base material along the groove.
    Type: Application
    Filed: August 2, 2012
    Publication date: May 30, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yoshinori Nagasu, Hisaki Sakamoto, Masaru Higuchi
  • Publication number: 20130137580
    Abstract: An effect of suppressing diffusion of metal elements from a substrate is high and orientation of a forcibly-oriented layer is improved. A base material (2) for a superconducting thin film includes: a substrate (10) including a metal element; a bed layer (22) formed on a surface of the substrate (10), the bed layer (22) including, as a main component, a non-orientated spinel compound that has a spinel type crystal structure and includes at least one transition metal element, Mg, and oxygen; and a forcibly-oriented layer (24) formed on a surface of the bed layer (22), the forcibly-oriented layer (24) having biaxial orientation and including, as a main component, a rock salt type compound that has a rock salt type crystal structure and includes Mg.
    Type: Application
    Filed: July 25, 2012
    Publication date: May 30, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yuko Hayase, Hiroyuki Fukushima, Yoshikazu Okuno, Eiji Kojima, Hisaki Sakamoto
  • Publication number: 20130130916
    Abstract: Adhesiveness between a metallic substrate and a metal oxide layer is made to increase. A superconducting thin film (1) includes a metallic substrate (10), a metallic layer (22) that is formed on a main surface of the metallic substrate (10) and includes a metal element capable of being passivated as a main component, a metal oxide layer (24) that is formed on the metallic layer (22) and includes the passivated metal element as a main component, and a superconducting layer (40) that is formed on the metal oxide layer (24) directly or through an intermediate layer and includes an oxide superconductor as a main component.
    Type: Application
    Filed: July 11, 2012
    Publication date: May 23, 2013
    Applicant: FURUKAWA ELECTRIC CO., LTD.
    Inventors: Yuko Hayase, Yoshikazu Okuno, Hiroyuki Fukushima, Eiji Kojima, Hisaki Sakamoto
  • Publication number: 20130123112
    Abstract: A continuous process produces superconducting layers on substrates, such as a superconducting layer of MgB2 produced by aerosol deposition on the substrate.
    Type: Application
    Filed: May 16, 2011
    Publication date: May 16, 2013
    Inventor: Tabea Arndt
  • Publication number: 20130101832
    Abstract: The noble metal coating of the present invention is formed on a ceramic substrate. The noble metal coating has a thickness of less than 2 ?m and comprises a matrix metal and a ceramic fine particle. The matrix metal includes at least one metal selected from a group consisting of Pt, Pd, Ru, Rh, Os, Ir and Au as a main component. The content of the ceramic fine particle is preferably 3 to 30 parts by weight with respect to 100 parts by weight of the matrix metal. The ratio between the average particle size of the ceramic fine particle and the thickness of the noble metal coating is preferably 1/1.5 to 1/400.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 25, 2013
    Applicant: NGK INSULATORS, LTD.
    Inventor: NGK INSULATORS, LTD.
  • Publication number: 20130102475
    Abstract: A method of forming a composite sheet includes disposing an untextured metal or alloy first sheet in contact with a second sheet in an aligned opposing position; bonding the first sheet to the second sheet by applying an oscillating ultrasonic force to at least one of the first sheet and the second sheet to form an untextured intermediate composite sheet; and annealing the untextured intermediate composite sheet at a temperature lower than a primary re-crystallization temperature of the second sheet and higher than a primary re-crystallization temperature of the first sheet to convert the untextured first sheet into a cube textured sheet, wherein the cube texture is characterized by a ?-scan having a FWHM of no more than 15° in all directions, the second sheet remaining untextured, to form a composite sheet.
    Type: Application
    Filed: April 18, 2012
    Publication date: April 25, 2013
    Applicant: UT-BATTELLE, LLC
    Inventors: Craig A. Blue, Amit Goyal
  • Patent number: 8409657
    Abstract: A production process of a thick-film tape-shaped RE-type (123) superconductor having a high critical current value. The production process has the steps of providing a composite substrate having Gd2Zr2O7 and CeO2 stacked in that order onto a Hastelloy substrate, coating a raw material solution prepared by dissolving a trifluoroacetate of Y and Ba and a naphthenate of Cu onto the composite substrate, heat treating the coated composite substrate by calcination, then subjecting the calcined assembly to intermediate heat-treatment at a temperature below the temperature of heat-treatment for superconductor production, and then heat treating the assembly in an argon gas atmosphere under conditions of highest heating temperature 760° C., water vapor partial pressure 13.5%, and oxygen partial pressure 0.09% for superconductor production to produce a tape-shaped RE-type (123) superconductor having a YBCO superconducting film having a thickness of more than about 2 ?m.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: April 2, 2013
    Assignees: The Jurical Foundation, SWCC Showa Cable Systems Co., Ltd.
    Inventors: Ryo Teranishi, Yuji Aoki, Junko Matsuda, Koichi Nakaoka, Teruo Izumi, Yuh Shiohara