公开(公告)号：US20230120408A1

公开(公告)日：2023-04-20

申请号：US17968556

申请日：2022-10-18

申请人： California Institute of Technology

发明人： Changsub Kim ,  Daniel P. Cunnane

IPC分类号： H01L39/14 ,  H01L39/24

摘要： A method of making a film comprising depositing magnesium and boron on a substrate; depositing a capping layer to form a capped film; and cooling the capped film so as to form a magnesium diboride film. The depositing may comprise tuning a ratio of the Mg to the B so as to tailor a resistivity of the magnesium diboride film anywhere in the range 10 μΩ*cm≤ρ≤500 mΩ*cm, and so as to form the magnesium diboride film comprising a superconductive film having a critical temperature greater than 10K or in a range 10K-40K. The magnesium diboride film can have an area greater than or equal to a circular area having a diameter of at least 4 inches; a thickness and sheet resistance varying by less than 10% over an entirety of the area; and a surface roughness less than 2 nm over the entirety of the area.

公开(公告)号：US11562836B2

公开(公告)日：2023-01-24

申请号：US16092231

申请日：2017-03-10

申请人： HITACHI, LTD.

发明人： Motomune Kodama ,  Shigeho Tanigawa ,  Hiroshi Kotaki ,  Hideki Tanaka ,  Kazuya Nishi ,  Takaaki Suzuki

IPC分类号： H01B12/10 ,  H01L39/14 ,  H01L39/24 ,  G01R33/3815 ,  H01F6/06 ,  H01F6/00

摘要： The present invention is intended to increase the critical current density of a wire rod having a shape with good symmetry such as a round wire or a square wire by making use of mechanical milling method. The production method of the present invention for the MgB2 superconducting wire rod comprises a mixing process of preparing a powder by adding a solid organic compound to a magnesium powder and a boron powder and then applying an impact to the powder to prepare a mixture of the powder in which boron particles are dispersed inside magnesium particles, a filling process of filling a metal tube with the mixture, an elongation process of elongating the metal tube filled with the mixture and a heat treatment process of heat-treating the metal tube to synthesize MgB2.

公开(公告)号：US11417445B2

公开(公告)日：2022-08-16

申请号：US16861525

申请日：2020-04-29

申请人： Paul Aimone ,  Francois-Charles Dary ,  David B. Smathers

发明人： Paul Aimone ,  Francois-Charles Dary ,  David B. Smathers

IPC分类号： H01B12/00 ,  H01B12/10 ,  H01L39/14 ,  H01L39/24 ,  B21C3/04 ,  C22C27/02 ,  C22F1/18 ,  H01B1/02 ,  H01B13/00

摘要： In various embodiments, superconducting wires feature assemblies of clad composite filaments and/or stabilized composite filaments embedded within a wire matrix. The wires may include one or more stabilizing elements for improved mechanical properties.

公开(公告)号：US20220230784A1

公开(公告)日：2022-07-21

申请号：US17719317

申请日：2022-04-12

申请人： University of Houston System ,  SuperPower, Inc.

发明人： Venkat Selvamanickam ,  Yimin Chen

IPC分类号： H01B12/02 ,  H01L39/14 ,  H01L39/12 ,  H01L39/24 ,  H01B1/02 ,  H01B9/00

摘要： A method and composition for doped HTS tapes having directional flux pinning and critical current.

公开(公告)号：US11289639B2

公开(公告)日：2022-03-29

申请号：US16407160

申请日：2019-05-08

申请人： Ambature Inc.

发明人： Douglas J. Gilbert ,  Y. Eugene Shteyn ,  Michael J. Smith ,  Joel Patrick Hanna ,  Paul Greenland ,  Brian Coppa ,  Forrest North

IPC分类号： H01B1/08 ,  H01L39/00 ,  H01L39/12 ,  G01L21/12 ,  G01R33/035 ,  G01K7/00 ,  H01F6/06 ,  H01L39/14 ,  H01L39/22 ,  H02K55/00 ,  H02K3/02 ,  C04B35/45 ,  H01B1/00 ,  H01L23/532

摘要： Electrical, mechanical, computing, and/or other devices that include components formed of extremely low resistance (ELR) materials, including, but not limited to, modified ELR materials, layered ELR materials, and new ELR materials, are described.

公开(公告)号：US11227706B2

公开(公告)日：2022-01-18

申请号：US16033473

申请日：2018-07-12

申请人： UNIVERSITY OF YAMANASHI

发明人： Naoto Sekiya

IPC分类号： H01B12/06 ,  H01F6/06 ,  H01L39/14

摘要： A superconducting wire according to the present disclosure includes: a base material; a superconductor layer formed on each of the respective surfaces of the base material; and a conductive protection layer formed on each of the surfaces of the respective superconductor layers. The thickness of each of the conductive protection layers is 5% or less of the skin depth when a high-frequency current flows through the superconducting wire. The material for forming the conductive protection layer may be, for example, silver.

公开(公告)号：US20210408356A1

公开(公告)日：2021-12-30

申请号：US17114062

申请日：2020-12-07

申请人： PsiQuantum Corp.

发明人： Faraz Najafi ,  Syrus Ziai

IPC分类号： H01L39/08 ,  H01L39/14 ,  H01L29/861 ,  H01L39/24 ,  H01L39/06 ,  H01L39/16 ,  B32B17/10 ,  B32B37/26 ,  H01L21/683 ,  H01L23/24 ,  H01L27/12

摘要： An electronic device (e.g., a diode) is provided that includes a substrate and a patterned layer of superconducting material disposed over the substrate. The patterned layer forms a first electrode, a second electrode, and a loop coupling the first electrode with the second electrode by a first channel and a second channel. The first channel and the second channel have different minimum widths. For a range of current magnitudes, when a magnetic field is applied to the patterned layer of superconducting material, the conductance from the first electrode to the second electrode is greater than the conductance from the second electrode to the first electrode.

公开(公告)号：US11063200B2

公开(公告)日：2021-07-13

申请号：US15542616

申请日：2016-01-11

申请人： Helmut Weidlich

发明人： Helmut Weidlich

IPC分类号： H01L39/14 ,  G01R33/06 ,  G21K1/093 ,  H01L29/06 ,  H01L29/205 ,  H01L29/82 ,  H01L43/00 ,  H02N11/00 ,  H01L43/10

摘要： A device for guiding charge carriers and uses of the device are proposed, wherein the charge carriers are guided by means of a magnetic field along a curved or angled main path in a two-dimensional electron gas or in a thin superconducting layer, so that a different presence density is produced at electrical connections.

公开(公告)号：US20210210672A1

公开(公告)日：2021-07-08

申请号：US17100620

申请日：2020-11-20

申请人： LAU Superconductors Inc.

发明人： Wayne Chung Wei Lau

IPC分类号： H01L39/14 ,  H01F6/00 ,  H01L31/04

摘要： A device comprises a support net with nodes, wherein each node comprises a HTS photovoltaic-magnetic cell, wherein alignments of the HTS photovoltaic-magnetic cells are arranged with N-S in parallel alignment. A device comprises a tether comprising a plurality of HTS solenoids and a sheath, wherein a solenoid of the plurality of HTS solenoids comprises a high temperature superconducting material and reinforcing fiber. A device comprises propulsion ball or plate with tail, injected in propulsion channel; HTS solenoids disposed along walls of propulsion channel, wherein the propulsion ball or plate with tail are moved through the propulsion channel using magnetic field generated by HTS solenoids; and a collection channel.

公开(公告)号：US20210210671A1

公开(公告)日：2021-07-08

申请号：US17100613

申请日：2020-11-20

申请人： LAU Superconductors Inc.

发明人： Wayne Chung Wei Lau

IPC分类号： H01L39/12 ,  H01L39/24 ,  H01L39/14

摘要： A method comprises growing a longitudinal a-b plane high temperature superconducting crystal with a long fiber reinforced seed crystal; and cutting off the long fiber reinforced seed crystal from the longitudinal a-b plane high temperature superconducting crystal. A method comprises adding high temperature superconducting constituent powders; adding intermediate solid state powders to the constituent powders; disposing fiber reinforcement within the intermediate solid state powders and the constituent powders; compressing the intermediate solid state powders and the constituent powders with the fiber reinforcement to form a high temperature superconducting shape; and heating the high temperature superconducting shape to crystalize. A composition comprises a plurality HTS segments, wherein a HTS segment comprises one or more continuous fibers embedded in a high temperature superconducting material; and a wire or a tape, which is mechanically and electrically coupled between a first HTS segment and a second HTS segment.