With Metal Deforming, Metal Wrapping, Or Metal Coiling Patents (Class 505/433)
  • Patent number: 10453590
    Abstract: Disclosed is a superconducting article comprising a silver overlayer consisting of no more than about 20% of grains over about 1 ?m, having a minimum Vickers micro-hardness value of about 100, and a porosity of less than about 1%. A method of manufacturing a superconducting tape is disclosed as comprising, deposition of silver, oxygenation at about 400° C. for about 30 minutes, slitting, deposition of silver at a temperature of less than about 250° C., and application of copper.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: October 22, 2019
    Assignee: University of Houston System
    Inventor: Venkat Selvamanickam
  • Publication number: 20150135788
    Abstract: The apparatus comprises a first working unit for unwinding a coil of conductor and providing straightened conductor, and a second working unit comprising a bending device arranged to bend the straightened conductor leaving the first working unit and a rotary table on which the bent conductor leaving the bending device is laid, whereby a set of turns is formed to make the superconductive coil. The rotary table is rotatably mounted about a stationary vertical axis. The bending device is mounted so as to be translatable both in a longitudinal direction coinciding with the direction of a longitudinal axis of the straightened conductor that is fed by the first working unit to the bending device and in a transverse direction perpendicular to the longitudinal direction. The first working unit is mounted so as to be translatable, along with the bending device, in the transverse direction only.
    Type: Application
    Filed: November 19, 2014
    Publication date: May 21, 2015
    Inventor: Marco Dani
  • Publication number: 20150133304
    Abstract: There is provided a high-temperature superconducting (HTS) coil and a method of manufacturing the same, allowing simple and excellent affixation between side panels for cooling the superconducting coil and the HTS coil while inhibiting delamination of an HTS wire. The method of manufacturing the HTS coil including the rare-earth-based HTS wire of the superconducting coil and side panels for cooling the superconducting coil which are affixed thereto, windings of the rare-earth-based HTS wire of the superconducting coil being separated between turns, includes: utilizing a tape-like polytetrafluoroethylene (PTFE) film 3 as an insulator between the windings of the rare-earth-based HTS wire 2 to form a PTFE-film co-wound superconducting coil; impregnating the PTFE-film co-wound superconducting coil 4 with epoxy resin 6; and affixing the side panels 5 to the-PTFE film co-wound superconducting coil 4.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 14, 2015
    Inventors: KATSUTOSHI MIZUNO, MASAFUMI OGATA, TOMOHISA YAMASHITA
  • Patent number: 9012366
    Abstract: A device for the high pressure densification of superconducting wire from compacted superconductor material or superconductor precursor powder particles, has four hard metal anvils (5, 6, 7, 8) with a total length (L2) parallel to the superconducting wire, the hard metal anvils borne in external independent pressure blocks (9, 10, 11), which are in turn either fixed or connected to high pressure devices, preferably hydraulic presses. At least one of the hard metal anvils is a free moving anvil (6) having clearances of at least 0.01 mm up to 0.2 mm towards the neighboring hard metal anvils (5, 8), so that no wall friction occurs between the free moving anvil and the neighboring anvils. This allows for high critical current densities Jc at reduced pressure applied to the hard metal anvils.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: April 21, 2015
    Assignee: Bruker BioSpin AG
    Inventors: René Flükiger, Florin Buta, Carmine Senatore
  • Patent number: 9002424
    Abstract: A tape-shaped superconducting film-forming substrate is disclosed, which includes a film-forming face for forming a laminate including a superconducting layer thereon, a rear face that is a face at a side opposite to the film-forming face, a pair of end faces connected to the film-forming face and the rear face, and a pair of side faces connected to the film-forming face, the rear face, and the pair of end faces, in which each of the pair of side faces includes a spreading face that spreads toward an outer side in an in-plane direction of the film-forming face from an edge part of the film-forming face toward the rear face side. A superconducting wire and a superconducting wire manufacturing method are also disclosed.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: April 7, 2015
    Assignee: Furukawa Electric Co., Ltd.
    Inventors: Yoshinori Nagasu, Masaru Higuchi, Hisaki Sakamoto
  • Patent number: 8959970
    Abstract: An apparatus and method for moving a wire along its own axis against a high resistance to its motion causing a substantial uniaxial compression stress in the wire without allowing it to buckle. The apparatus consists of a wire gripping and moving drive wheel and guide rollers for transporting the moving wire away from the drive wheel. Wire is pressed into a peripheral groove in a relatively large diameter, rotating drive wheel by a set of small diameter rollers arranged along part of the periphery causing the wire to be gripped by the groove.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: February 24, 2015
    Inventor: Alfred R. Austen
  • Publication number: 20150038334
    Abstract: A tape-shaped superconducting film-forming substrate is disclosed, which includes a film-forming face for forming a laminate including a superconducting layer thereon, a rear face that is a face at a side opposite to the film-forming face, a pair of end faces connected to the film-forming face and the rear face, and a pair of side faces connected to the film-forming face, the rear face, and the pair of end faces, in which each of the pair of side faces includes a spreading face that spreads toward an outer side in an in-plane direction of the film-forming face from an edge part of the film-forming face toward the rear face side. A superconducting wire and a superconducting wire manufacturing method are also disclosed.
    Type: Application
    Filed: February 6, 2013
    Publication date: February 5, 2015
    Inventors: Yoshinori Nagasu, Masaru Higuchi, Hisaki Sakamoto
  • Publication number: 20150024943
    Abstract: A compound superconducting wire 10 includes a reinforcement portion 12 and a compound superconductor 11. In the reinforcement portion 12, an assembly of plural reinforcement elements 4 are disposed. The reinforcement elements 4 each include plural reinforcement filaments 1 disposed in a stabilizer 2, and a stabilizing layer 3 at the outer periphery thereof. The reinforcement filaments 1 each mainly contain one or more metals selected from the group consisting of Nb, Ta, V, W, Mo, Fe, and Hf, an alloy consisting of two or more metals selected from the aforementioned group, or an alloy consisting of copper and one or more metals selected from the aforementioned group.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Inventors: Masahiro SUGIMOTO, Hirokazu TSUBOUCHI, Kazuo WATANABE, Satoshi AWAJI, Hidetoshi OGURO
  • Publication number: 20140378314
    Abstract: Reinforced high temperature superconducting silver wire and materials, and methods of producing reinforced high temperature superconducting silver composite wire. More specifically reinforcement materials and assemblies for attaining much higher stress, bend and surface indent tolerances at practical conductor dimensions are described. The reinforced wire or methods can include a silver wire core and a layer of high strength reinforcing metal.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 25, 2014
    Inventor: Alexander Otto
  • Publication number: 20140371077
    Abstract: A method is provided for manufacturing a superconductive cable equipped with means for compensating length. changes caused by temperature changes which occur when the cable is cooled from room temperature to work temperature and vice-versa. A superconductive cable (SK) with a tubular, central carrier (1) is used which is surrounded by at least one superconductive conductor. Arranged in the carrier (1) is at least one tension-proof strand (2) arranged over the entire length of the carrier (1). Cable (SK) is initially wound, including strand (2), at room temperature onto a coil (SP). Subsequently, the strand (2) is immovably fastened to the two ends of the cable (SK) and the cable (SK) is subsequently wound off the coil (SP).
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Inventors: Erik Marzahn, Mark Stemmle
  • Patent number: 8903465
    Abstract: A superconducting magnet assembly includes a bobbin comprising a central bore along a longitudinal direction, and a superconducting coil package wound on the bobbin. The superconducting coil package includes a plurality of superconducting coil layers wound on the bobbin, a plurality of supporting member layers, each of the supporting member layers being between a corresponding two adjacent superconducting coil layers, and a thermal conduction layer between two superconducting coil layers or between a superconducting coil layer and an adjacent supporting member layer.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: December 2, 2014
    Assignee: General Electric Company
    Inventors: Xianrui Huang, Yan Zhao, Anbo Wu, Evangelos Trifon Laskaris, Paul St. Mark Shadforth Thompson
  • Publication number: 20140323314
    Abstract: An oxide superconductor wire includes: a tape-shaped oxide superconductor laminate that is formed by providing an intermediate layer on a front surface side of a metal tape-shaped substrate, providing an oxide superconductor layer on the intermediate layer, and providing a protective layer on the oxide superconductor layer; and a coating member that includes a metal tape and a low melting point metal layer, in which the metal tape has a wider width than that of the oxide superconductor laminate and covers the protective layer surface of the oxide superconductor laminate, both side surfaces of the oxide superconductor laminate, and both end portions of a substrate back surface side in a width direction thereof, and both end portions of the metal tape in a width direction thereof are provided to cover both the end portions of the substrate back surface.
    Type: Application
    Filed: May 19, 2014
    Publication date: October 30, 2014
    Applicant: FUJIKURA LTD.
    Inventor: Tetsuo TAKEMOTO
  • 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: 8712490
    Abstract: A conductor for transmitting electrical power having a cylindrical core (1) clad with a strip of metallic material (2), possibly comprising a superconductor, placed, in the shape of a tube, longitudinally around said core (I), its longitudinal edges being welded to each other along a weld seam (3). The core (1) has a slot (4, 4?) placed under said weld seam (3).
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: April 29, 2014
    Assignee: Nexans
    Inventors: Christian-Eric Bruzek, Arnaud Allais, Claus-Friedrich Theune
  • Publication number: 20140100117
    Abstract: A method for producing a superconducting wire (10), wherein an internal wire (1), which contains superconducting filaments (4), is provided with a normally conducting stabilizing structure (9), is characterized in that, in a continuous or quasi-continuous process, one or more sheath elements (2; 2a, 2b) are shaped and/or placed around the internal wire (9), so that the entire circumference of the internal wire (1) is enclosed by one or more sheath elements (2; 2a, 2b), and all seams (6; 6a, 6b; 16; 16a, 16b) of sheath element ends (5a-5d; 15a-15d) facing each other are soldered and/or welded. A method for producing a superconducting wire is thereby provided, which restricts the cross section of the superconducting wire to a lesser extent and which permits the use of lead-free solder.
    Type: Application
    Filed: September 19, 2013
    Publication date: April 10, 2014
    Inventors: Burkhard Prause, Manfred Thoener, Andreas Szulczyk
  • Publication number: 20140100118
    Abstract: A device and method for continuously forming superconducting wire, and products made therefrom. The method may include providing at least one continuous metal sheathing strip and at least one metal form, continuously forming the at least one continuous metal sheathing strip to form a partially open configuration, continuously filling the partially open configuration with magnesium diboride precursor comprising boron, and a metal form, and closing the partially open configuration thereby enclosing the magnesium diboride precursor comprising boron, and a metal form, to form a closed configuration. Subsequent reduction in diameter and elongation in length of the closed configuration, followed by heat treatment, catalyzes the transformation of the magnesium diboride precursor comprising boron, and the metal form, to magnesium diboride to form the superconducting wire.
    Type: Application
    Filed: October 2, 2013
    Publication date: April 10, 2014
    Applicant: HYPER TECH RESEARCH, INC.
    Inventors: David D. Doll, Michael J. Tomsic, Matthew Rindfleisch, Chee June Thong, Hoong Pak Jinji Yue, Trent Wieber, Justin Wells
  • Patent number: 8644899
    Abstract: A coated conductor with a substantially round cross section has a high temperature superconductor layer which is sandwiched between an inner substrate layer and an outer substrate layer to place the high temperature superconductor layer in the region of neutral strain axis.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: February 4, 2014
    Assignee: Nexans
    Inventors: Arnaud Allais, Mark O. Rikel, Jürgen Ehrenberg, Christian-Eric Bruzek
  • Publication number: 20140031235
    Abstract: An inner circumferential portion is formed by winding one of first and second superconducting wires each having a band shape. An outer circumferential portion is formed by winding the other of the first and second superconducting wires around the inner circumferential portion. A welding portion joins the first and second superconducting wires to each other by welding between the inner circumferential portion and the outer circumferential portion. The first superconducting wire is higher in strength than the second superconducting wire. The second superconducting wire is smaller in thickness than the first superconducting wire.
    Type: Application
    Filed: April 24, 2012
    Publication date: January 30, 2014
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Eisaku Ueno, Takeshi Kato
  • Patent number: 8592346
    Abstract: A method for fabricating a wire from textured powder includes compressing a powder comprising a plurality of particles into a ribbon. The method further includes encasing the ribbon between two foil sheets to create a sheet of encased ribbon. The method additionally includes rolling the encased ribbon into a substantially cylindrical undrawn wire. The method further includes drawing the undrawn wire to create a substantially cylindrical wire having a diameter less than a diameter of the substantially cylindrical undrawn wire.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: November 26, 2013
    Assignee: The Texas A&M University System
    Inventors: Peter M. McIntyre, Kyle C. Damborsky, Nathaniel J. Pogue
  • 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: 20130102473
    Abstract: A superconducting magnet includes a superconducting wire including magnesium diboride; a superconducting coil where a part of the superconducting wire is wound; and a joint where an end of the superconducting wire and an end of another superconducting wire are connected and united. The joint includes a sintered body including magnesium diboride, an averaged particle diameter of magnesium diboride at the joint of the superconducting wire is greater than an averaged particle diameter of the magnesium diboride at the part where the superconducting wire is wound.
    Type: Application
    Filed: October 24, 2012
    Publication date: April 25, 2013
    Applicant: HITACHI, LTD.
    Inventor: HITACHI, LTD.
  • Publication number: 20130053250
    Abstract: An Nb3Sn superconductor wire is manufactured by heating a precursor for an Nb3Sn superconductor wire. The precursor includes a Cu tube made of Cu or Cu-alloy, assemblies, each of which includes Nb filaments disposed in the Cu tube, and each of the Nb filaments includes an Nb core made of Nb or Nb-alloy. Each of the assemblies also includes Sn filaments disposed in the Cu tube, and each of the Sn filaments includes a Sn core made of Sn or Sn-alloy. The precursor also includes reinforcing filaments disposed in the Cu tube for dividing the assemblies such that the assemblies are not adjacent to each other. By heating the precursor, Sn in the Sn core is diffused into the Nb core to produce Nb3Sn.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicant: HITACHI CABLE, LTD.
    Inventors: Katsumi OHATA, Yoshihide WADAYAMA, Kazuhiko NAKAGAWA, Morio KIMURA
  • Patent number: 8372784
    Abstract: A method for producing a superconductive wire, whereby an elongated intermediate element is formed out of an initial element in a deformation step and whereby the superconductive filaments are formed by a final reaction heat treatment, is characterized in that prior to the final reaction heat treatment the filaments in the intermediate element are densified in one or more high pressure densification steps following up the deformation step, said densification steps comprising a simultaneous action of at least four hard surfaces perpendicular to the axis of the elongated intermediate element, building up high pressure P?100 MPa on a part of the intermediate element having an axial length L. This leads to a substantial increase of the critical current density Jc, whereby the anisotropy factor ? is be almost not affected thus enabling production of almost isotropic wires or tapes.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: February 12, 2013
    Assignee: Bruker Biospin AG
    Inventor: René Flükiger
  • Patent number: 8367585
    Abstract: Disclosed herein is a superconducting strip having a metal coating layer and a method of manufacturing the superconducting strip.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: February 5, 2013
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Hong Soo Ha, Sang Soo Oh, Dong Woo Ha, Kyu Jung Song, Rock Kil Ko, Ho Sup Kim
  • Patent number: 8344835
    Abstract: The method of winding superconducting wire comprises a winding method comprising: winding the superconducting wire from the source reel onto the first lane of the first bobbin a first number of times in a first direction; fixing the first bobbin and the second bobbin to each other; winding the superconducting wire from the source reel onto the third lane of the second bobbin a second number of times in the first direction; separating the first bobbin and the second bobbin from each other; and winding the superconducting wire from the first lane of the first bobbin onto the fourth lane of the second bobbin a third number of times in a second direction which is different from the first direction while winding the superconducting wire from the third lane of the second bobbin onto the source reel the third number of times in the second direction.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: January 1, 2013
    Assignee: Industry-Academic Cooperation Foundation, Yonsel University
    Inventors: Tae Kuk Ko, Jae Sik Kang, Hyun Chul Jo, Suk Jin Choi, Jin Bae Na, Jae Young Jang, Young Jin Hwang, Hyung Jun Kim
  • Patent number: 8265722
    Abstract: Disclosed is a superconducting wire and a method for manufacturing the same, in which spacer are inserted into each space formed between modules, the spacers being different kinds according to a shape of each space when a restacking billet is manufactured in an internal diffusion method for manufacturing a Nb3Sn superconducting wire. One of a copper spacer and a low tin/copper spacer having a sectional area rate of copper/tin more than 6.0 is arranged between three modules as well as between two modules and a diffusion preventing tube, and a high tin/copper spacer having a sectional area rate of copper/tin less than 0.01˜1.5 or a middle tin/copper spacer having a sectional area rate of copper/tin less than 1.5˜6.0 is arranged between four modules.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: September 11, 2012
    Assignee: K.A.T. Co., Ltd.
    Inventors: Pyeong-Yeol Park, Kyeong-Ho Jang
  • Publication number: 20120225784
    Abstract: Embodiments of a high temperature electromagnetic coil assembly are provided, as are embodiments of a method for fabricating such a high temperature electromagnetic coil assembly. In one embodiment, the method includes the steps of applying a high thermal expansion ceramic coating over an anodized aluminum wire, coiling the coated anodized aluminum wire around a support structure, and curing the high thermal expansion ceramic coating after coiling to produce an electrically insulative, high thermal expansion ceramic body in which the coiled anodized aluminum wire is embedded.
    Type: Application
    Filed: March 2, 2011
    Publication date: September 6, 2012
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: James Piascik, Eric Passman, Reza Oboodi, Robert Franconi, Richard Fox, Gary J Seminara, Gene Holden, Jacob Harding
  • Publication number: 20120214675
    Abstract: Superconducting cables employ one or more superconducting tapes wound around a former. A compact superconducting cable is configured using a former having a small diameter, e.g., less than 10 millimeters. A flexible superconducting cable is configured with a former made of a flexible material. Superconducting tape conductors are wound around the former, with the superconducting layer in compression on the inside of the wind turns of the wind, to prevent irreversible damage to the superconductor. A layer of solder is on the superconducting tape(s) or solder sheaths are wound between tape conductors in each layer. The one or more solder layers or sheaths are melted to cause the solder to flow within the structure, to bond some or all of the superconducting tape conductors together and form a mechanically strong cable with an enhanced level of electrical connectivity between tapes in the cable.
    Type: Application
    Filed: February 16, 2012
    Publication date: August 23, 2012
    Inventor: Daniel Cornelis van der Laan
  • Publication number: 20120190555
    Abstract: A physical construction of a superconducting multi-core billet is provided together with a method for manufacturing a superconducting multi-core wire to offer reduction of manufacturing time (cost) and low frequency of occurrence of wire break during diameter-reduction drawing. The superconducting multi-core billet by the present invention has such a construction that a plurality of vertical holes are made in a billet 2 of copper or copper alloy of circular cross-section; that the vertical holes are filled with a superconducting material 4 comprised of NbTi; that a copper-volume ratio, which is a ratio of the copper or the copper alloy to NbTi in volume, is not smaller than four; that the plurality of vertical holes are made in the billet so that each of the vertical holes will be arrayed at an equal spacing on each of two inner and outer layers concentric circles.
    Type: Application
    Filed: January 19, 2012
    Publication date: July 26, 2012
    Applicant: HITACHI CABLE, LTD.
    Inventors: Takaaki SASAOKA, Morio KIMURA, Yoshihiro SAKURAI, Katsumi MIYASHITA, Hiroshi KOTOU, Youichi SUZUKI
  • Publication number: 20120135868
    Abstract: A superconducting magnet assembly includes a bobbin comprising a central bore along a longitudinal direction, and a superconducting coil package wound on the bobbin. The superconducting coil package includes a plurality of superconducting coil layers wound on the bobbin, a plurality of supporting member layers, each of the supporting member layers being between a corresponding two adjacent superconducting coil layers, and a thermal conduction layer between two superconducting coil layers or between a superconducting coil layer and an adjacent supporting member layer.
    Type: Application
    Filed: January 28, 2011
    Publication date: May 31, 2012
    Inventors: XIANRUI HUANG, Yan Zhao, Anbo Wu, Evangelos Trifon Laskaris, Paul St. Mark Shadforth Thompson
  • Patent number: 8178473
    Abstract: Disclosed are a superconductive magnet manufactured by winding a thin superconductive rod wire in a coil without joint for maintaining a persistent current mode, and a method for manufacturing the same. The method includes winding both ends of a superconductive rod wire (10) on a first bobbin (21) and a second bobbin (22) respectively; forming a first unit rod wire (10a) and a second unit rod wire (10b) by slitting the superconductive rod wire (10) in the lengthwise direction; producing a pancake coil by winding the first and second unit rod wires (10a, 10b) on third bobbins (25) in one direction; and arranging the first and second unit rod wires (10a, 10b) such that magnetic fields (B, B?) in the same direction are generated from the pancake coil, by reversing one of the third bobbins (25) on which the first and second unit rod wires (10a, 10b) are wound.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: May 15, 2012
    Inventors: Gye-Won Hong, Hee-Gyoun Lee
  • Publication number: 20120108438
    Abstract: A method of manufacturing superconductors with critical temperature Tc>300K is disclosed. This method is from a theory of high-Tc superconductivity wherein the doping mechanism is found. A kind of superconductors composed by this method is the AlB2-type superconductors obtained by doping AlB2-type intermetallics such as Sr1-xCaxGa2. Another kind of superconductors composed by this method is the CaCu5-type superconductors obtained by doping CaCu5-type intermetallics such as L1-xAxCu5, LCu5(10x)Ni5x(A-Ca, Sr; L-La, Y, Mm,), Sr1-xCaxCu5, La1-xSrx(1-y)CaxCu5. In particular the CaCu5-type intermetallics LaNi5 and MmNi5 are superconductors with critical temperature Tc>300K. These CaCu5-type superconductors are with high critical current densities and thus are applicable for the transmission of electricity.
    Type: Application
    Filed: October 5, 2011
    Publication date: May 3, 2012
    Inventor: Sze Kui Ng
  • Patent number: 8148301
    Abstract: An oxide superconductor member is composed of a tape-shaped substrate, an intermediate layer formed on this substrate and an oxide superconductor thin film layer formed on this intermediate layer. A surface of the tape-shaped substrate is polished by continuously running the tape-shaped substrate. The polishing step includes initial polishing process and finishing process which are carried out such that the average surface roughness Ra of the substrate becomes 2 nanometers or less and the in-plane directionality of the intermediate layer becomes 5° or less after the polishing step.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: April 3, 2012
    Assignee: NIHON Micro Coating Co., Ltd.
    Inventors: Sanaki Horimoto, Takuya Nagamine, Takehiro Watanabe, Fumi Murokawa, Yuji Horie, Noriyuki Kumasaka, Masahiro Hosoi
  • Patent number: 8143194
    Abstract: An oxide superconductor member is composed of a tape-shaped substrate, an intermediate layer formed on this substrate and an oxide superconductor thin film layer formed on this intermediate layer. A surface of the tape-shaped substrate is polished by continuously running the tape-shaped substrate. The polishing step includes initial polishing process and finishing process which are carried out such that the average surface roughness Ra of the substrate becomes 2 nanometers or less and the in-plane directionality of the intermediate layer becomes 5° or less after the polishing step.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: March 27, 2012
    Assignee: NIHON Micro Coating Co., Ltd.
    Inventors: Sanaki Horimoto, Takuya Nagamine, Takehiro Watanabe, Fumi Murokawa, Yuji Horie, Noriyuki Kumasaka, Masahiro Hosoi
  • Publication number: 20120015815
    Abstract: A coated conductor with a substantially round cross section has a high temperature superconductor layer which is sandwiched between an inner substrate layer and an outer substrate layer to place the high temperature superconductor layer in the region of neutral strain axis.
    Type: Application
    Filed: July 15, 2010
    Publication date: January 19, 2012
    Inventors: Arnaud Allais, Mark O. Rikel, Jürgen Ehrenberg, Christian-Eric Bruzek
  • Publication number: 20120004110
    Abstract: It is an objective of the present invention to provide a method for manufacturing long lengths of MgB2 superconducting wire having excellent superconducting properties and an MgB2 superconducting wire manufactured thereby. There is provided a method for manufacturing a magnesium diboride superconducting wire, comprising the successive steps of: filling a metallic tube with a raw material powder; and subjecting the tube to wiredrawing processing, in which a fatty acid metal salt or a mixture of the fatty acid metal salt and a fatty acid is added to the raw material powder.
    Type: Application
    Filed: June 29, 2011
    Publication date: January 5, 2012
    Inventors: Masaya TAKAHASHI, Tsuyoshi Wakuda, Yota Ichiki, Kazuhide Tanaka
  • Patent number: 8034746
    Abstract: Disclosed herein is a method of manufacturing round wire using superconducting tape, including the steps of: slitting superconducting tape into superconducting tape strips; silver-coating the slit superconducting tape strips; laminating the silver-coated superconducting tape strips to form a superconducting tape laminate having a square cross-section; holding the superconducting tape laminate; heat-treating the fixed superconducting tape laminate to cause diffusion junction between silver; and copper-plating the heat-treated superconducting tape laminate to have a circular section.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: October 11, 2011
    Assignee: Korea Electrotechnology Research Institute
    Inventors: Hong Soo Ha, Sang Soo Oh, Dong Woo Ha, Rock Kil Ko, Ho Sup Kim
  • Publication number: 20110224085
    Abstract: An amorphous or a partially crystalline magnesium diboride comprising a crystalline material content of ?25% by weight as determined by an X-ray powder diffraction.
    Type: Application
    Filed: October 19, 2009
    Publication date: September 15, 2011
    Applicant: H.C. STARCK GMBH
    Inventor: Friedrich Wilhelm Karau
  • Publication number: 20110172104
    Abstract: A miniundulator that includes a first bobbin and a second bobbin parallel to and spaced from the first bobbin, and a superconductive wire wound around the outer surfaces of the first bobbin and the second bobbin, and method for the assembly of the miniundulator are disclosed.
    Type: Application
    Filed: September 14, 2009
    Publication date: July 14, 2011
    Inventors: Herbert O. Moser, Caozheng Diao
  • Publication number: 20110152102
    Abstract: An apparatus, system and method for measuring electrical dissipation in a coil wound with superconducting wire or tape are disclosed. The superconducting coil may include one or more superconducting wires wound together with a witness winding. The one or more superconducting wires may be electrically connected to the witness winding. The one or more superconducting wires may be shaped as a tape. The witness winding may be a tape. The superconducting coil may be wound into a flat pancake structure. The witness winding may be configured to detect a quench in the one or more superconducting wires, which may otherwise interfere with the superconductivity of the one or more superconducting wires.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 23, 2011
    Inventor: JOHN H CLAASSEN
  • Publication number: 20110152104
    Abstract: An apparatus and method for manufacturing a superconducting low-pass filter for quantum computing devices. The apparatus includes a plurality of containers and input and output ports connected to opposite ends of the apparatus. A plurality of coils of superconducting wire are wound using a mandrel. An adhesive is applied to the coils for maintaining a wound state. Each of the coils are positioned in each of the containers and electrically connected to each other with at least one coil being connected to the input port and at least one coil being connected to the output port. The coils are released or expanded from their wound state using an adhesive solvent. The containers are then filled with a conductive polymer and the containers are closed with one or more covers.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 23, 2011
    Applicant: International Business Machines Corporation
    Inventors: Matthew Farinelli, George A. Keefe, Frank Milliken, JR., James R. Rozen
  • Publication number: 20110143945
    Abstract: A method is specified for production of a superconducting electrical conductor which has a ceramic material as the superconducting material. A metal ribbon is formed around a multiplicity of flat strips of a mount which is coated with the superconducting ceramic material, running longitudinally to form a tube having a slot which runs in the longitudinal direction, and whose edges which rest on one another on the slot are welded to one another The tube which is closed by the welding process is then reduced to a diameter which corresponds approximately to the envelopes of all the strips which are located in the tube.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 16, 2011
    Inventors: Rainer Soika, Dipl-Ing Frank Schmidt
  • Publication number: 20110136673
    Abstract: A precursor wire of an oxide superconducting wire includes a first sheath made of silver or silver alloy, a center portion in the first sheath, and a plurality of peripheral segments placed close to one another at the inside of the first sheath so as to surround the center portion. Each of the peripheral segments is formed as a monofilamentary segment that has an arch-shaped cross section and that includes a ribbon-shaped filament made of a precursor of an oxide superconductor and covered with a second sheath made of silver or silver alloy. The multiple peripheral segments are placed in a multilayer state in the form of concentric circles such that wide-width surfaces of the peripheral segments surround the center portion.
    Type: Application
    Filed: April 22, 2009
    Publication date: June 9, 2011
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventor: Naoki Ayai
  • Publication number: 20110136674
    Abstract: A method of manufacturing a superconducting tape wire, wherein a reduction in critical current in the superconducting tape wire and the effective AC loss are suppressed. To manufacture the superconducting tape wire, the filaments filled with superconducting material powder and having a flat elliptic or rectangular cross section are disposed in a pipe having a shape whose sides in a pressing direction have a smaller length than adjacent sides, and then the pipe is compressed in the short-side direction to form the pipe in a tape shape.
    Type: Application
    Filed: May 27, 2009
    Publication date: June 9, 2011
    Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATION
    Inventor: Sataro Yamaguchi
  • Publication number: 20100323901
    Abstract: A method of manufacturing a superconducting wire includes the step of drawing a wire formed by coating raw material powder for a superconductor with a metal (S6), the step of first rolling (S8) rolling a multifilamentary wire after the step of drawing (S6), and the step of first sintering (S10) sintering the multifilamentary wire 1 after the step of the first rolling (S8). At least one of an interval between the step of drawing (S6) and the step of the first rolling (S8) and an interval between the step of the first rolling (S8) and the step of the first sintering (S10) is less than seven days. With this method, a superconducting wire having high and uniform performance can be obtained.
    Type: Application
    Filed: August 12, 2010
    Publication date: December 23, 2010
    Inventors: Jun Fujikami, Takeshi Kato
  • Patent number: 7843292
    Abstract: The invention relates to a coil for producing a magnetic field having at least one winding (12), which is manufactured from a superconductor, is cast into a plastic and whose winding end (19) which is arranged at the circumference (13) of the winding (12) is used for making contact with an electrical conductor (15). In order to provide coils with windings (12) consisting of superconductors which make robust contact-making possible given simple production, an electrically conductive connection piece (30) with a base region (31), which is connected to the winding end (19), and a top region (32) for connecting the conductor (15) is provided for contact-making purposes, the base region (31) of said connection piece (30) being covered partially in the radial direction by a reinforcing insert (14), which is cast into the plastic (20) and at least partially surrounds the winding (12).
    Type: Grant
    Filed: October 18, 2006
    Date of Patent: November 30, 2010
    Assignee: Zenergy Power GmbH
    Inventors: Stefan Remke, Thomas Braun, Jan Wiezoreck
  • Patent number: 7811972
    Abstract: A target surface of a tape-shaped substrate of an oxide superconductor with an intermediate layer formed on this target surface and an oxide superconductor thin film is polished by causing the tape-shaped substrate to continuously run. The polishing step includes an initial polishing process for carrying out random polishing of the target surface and a finishing process that is carried out after the initial polishing process for forming grooves on the target surface along the running direction of the substrate. The intermediate layer has an in-plane directionality of 7° or less. The tape-shaped substrate is fabricated by rolling nickel, a nickel alloys or stainless steel.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: October 12, 2010
    Assignee: NIHON Micro Coating Co., Ltd.
    Inventors: Yuji Horie, Noriyuki Kumasaka, Sanaki Horimoto
  • Publication number: 20100197505
    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: Application
    Filed: May 27, 2009
    Publication date: August 5, 2010
    Inventors: Florian Steinmeyer, Mark Rikel, Jürgen Ehrenberg, Steffen Elschner
  • Publication number: 20100179063
    Abstract: A superconducting article is provided which includes a superconducting tape assembly. The superconducting tape assembly includes a superconducting tape layer, having one or more superconducting tapes, and a high-permeability magnetic material layer coupled to the superconducting tape layer. The high-permeability magnetic material layer includes a high-permeability magnetic material which remains magnetically soft at a critical temperature Tc of the superconducting tape, and with presence of an ac magnetic field acting on the superconducting tape assembly, re-magnetizes to divert at least a portion of a normal component of the ac magnetic field therethrough, which reduces ac loss in the superconducting tape layer by modifying the ac magnetic field distribution within the superconducting tape of the superconducting tape layer.
    Type: Application
    Filed: January 9, 2009
    Publication date: July 15, 2010
    Applicant: SuperPower. Inc.
    Inventor: Maxim MARTCHEVSKII
  • Patent number: 7749939
    Abstract: By adding an aromatic hydrocarbon such as benzene to the powder mixture of magnesium (Mg) or magnesium hydride (MgH2) and boron (B) as raw materials of a superconductor MgB2, high superconducting critical current density (Jc) is obtained.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: July 6, 2010
    Assignees: National Institute for Materials Science, Central Japan Railway Company
    Inventors: Hiroaki Kumakura, Hitoshi Kitaguchi, Masazumi Hirakawa, Hideyuki Yamada