公开(公告)号：US11710583B2

公开(公告)日：2023-07-25

申请号：US17917086

申请日：2020-04-06

申请人： Fujikura Ltd.

发明人： Shinji Fujita

IPC分类号： H01B12/04 ,  H01B12/06

CPC分类号： H01B12/04 ,  H01B12/06

摘要： A superconducting coil comprising an oxide superconducting wire includes: a superconducting laminate comprising a substrate and an oxide superconducting layer; and a stabilization layer made of copper plating formed around the superconducting laminate. A thickness d of the stabilization layer is in the range of 10 to 40 μm. A ratio Ra/d of the thickness d of the stabilization layer and an arithmetic mean roughness Ra of an outer surface of the stabilization layer is in the range of 0.005 to 0.03. An intermediate layer is arranged between the substrate and the oxide superconducting layer. When a tensile test of pulling the oxide superconducting wire in a longitudinal direction within a stress range of 180 to 600 MPa in liquid nitrogen is performed, a ratio of a critical current when a repeated pulling number reaches 100,000 times and an initial critical current measured before the tensile test is 0.99 or more.

公开(公告)号：US20170372819A1

公开(公告)日：2017-12-28

申请号：US15672502

申请日：2017-08-09

申请人： FURUKAWA ELECTRIC CO., LTD.

发明人： Tomohiro TAKAGI ,  Masashi YAGI

IPC分类号： H01B12/14 ,  H01B12/16 ,  H01B12/04

CPC分类号： H01B12/14 ,  H01B12/04 ,  H01B12/16 ,  H02G15/34 ,  Y02E40/645 ,  Y02E40/647 ,  Y02E40/648

摘要： In order to obtain a highly versatile superconducting cable capable of absorbing differences in thermal contraction amounts that arise between three members, these being a cable core, an inner tube, and an outer tube, and to obtain a superconducting cable manufacturing method of the same, a superconducting cable includes a thermal insulation vacuum tube and a cable core. The thermal insulation vacuum tube includes an inner tube fixed at both ends and having a cooling medium filled inside, and an outer tube disposed at an outer peripheral side of the inner tube with a space between the outer tube and the inner tube maintained at a vacuum, and is configured to include a winding section wound with one or more turns. The cable core is fixed at both ends and disposed inside the inner tube.

公开(公告)号：US20150332811A1

公开(公告)日：2015-11-19

申请号：US14443234

申请日：2013-04-04

申请人： TOKYO WIRE WORKS, LTD.

发明人： Hiroyoshi Yamada ,  Naoki Koshizuka ,  Kazunari Mochizuki ,  Satoshi Shimura

IPC分类号： H01B12/04 ,  H01B12/02 ,  G01F23/24

CPC分类号： H01B12/04 ,  C01B35/04 ,  G01F23/24 ,  G01F23/247 ,  G01F23/248 ,  H01B12/02 ,  H01L39/10 ,  H01L39/125 ,  H01L39/2487

摘要： An MgB2-based superconducting wire for a liquid hydrogen fluid level sensor which can maintain an unimmersed portion of the MgB2-based superconducting wire for a liquid hydrogen fluid level sensor in a non-superconducting state even without heating the unimmersed portion is provided. A wire for a liquid hydrogen fluid level sensor comprises an MgB2-based superconductor which contains Mg, B, and Al. The critical temperature at which the electrical resistance becomes essentially zero is 20-25 K, and the transition width, which is the difference between the temperature at which the electrical resistance begins to decrease toward zero and the critical temperature, is at most 5 K.

摘要翻译： 提供一种用于液体氢液体液位传感器的基于MgB 2的超导线，其可以在非超导状态下保持用于非超导状态的液体氢液体液位传感器的MgB 2基超导线的未掺杂部分，而不加热未浸没的部分。 用于液体氢液体液位传感器的线包括含有Mg，B和Al的MgB 2基超导体。 电阻变为基本为零的临界温度为20-25K，电阻开始向零降低的温度与临界温度之间的差的转变宽度为5K以下。

公开(公告)号：US20150045230A1

公开(公告)日：2015-02-12

申请号：US14387991

申请日：2013-04-01

申请人： Sumitomo Electric Industries, Ltd.

发明人： Yuki Shingai ,  Masaya Konishi

IPC分类号： H01B12/04

CPC分类号： H01B12/04 ,  H01B12/02 ,  H01L39/143 ,  H01L39/248 ,  Y02E40/641

摘要： Provided is a reinforcing-member-equipped oxide superconducting wire in which occurrence of defects such as separation of a reinforcing member due to a decrease in the strength of an edge portion is sufficiently suppressed, problems such as separation of a reinforcing member do not occur even when a force in a thickness direction is applied, and stable superconducting properties can be maintained. The reinforcing-member-equipped oxide superconducting wire includes an oxide superconducting wire and two reinforcing members that are disposed so as to sandwich the oxide superconducting wire. The reinforcing members are bonded to the oxide superconducting wire using solder, and each of the reinforcing members has a width equal to or smaller than a width of the oxide superconducting wire or at least surfaces of the oxide superconducting wire, the surfaces facing the reinforcing members, are covered with copper, nickel, or an alloy containing at least one of these metals.

摘要翻译： 本发明提供一种加强构件的氧化物超导线，其中充分抑制由于边缘部的强度的降低而导致的加强构件的分离等缺陷的发生，甚至不发生加强构件的分离等问题 当施加厚度方向的力时，可以保持稳定的超导特性。 具有加强构件的氧化物超导线包括氧化物超导线和两个加强构件，其被设置为夹着氧化物超导线。 加强构件使用焊料结合到氧化物超导线上，并且每个加强构件具有等于或小于氧化物超导线的宽度或氧化物超导线的至少表面的宽度，面向加强构件的表面 被铜，镍或包含这些金属中的至少一种的合金覆盖。

公开(公告)号：US20140148343A1

公开(公告)日：2014-05-29

申请号：US14141218

申请日：2013-12-26

申请人： Hiroshi TOBITA ,  Masateru YOSHIZUMI ,  Teruo IZUMI ,  Yuh SHIOHARA

发明人： Hiroshi TOBITA ,  Masateru YOSHIZUMI ,  Teruo IZUMI ,  Yuh SHIOHARA

IPC分类号： H01B12/04

CPC分类号： H01B12/04 ,  H01L39/126 ,  H01L39/2448 ,  H01L39/2483

摘要： An RE123-based superconducting wire includes a base material, an intermediate layer formed on the base material, and an oxide superconducting layer which is formed on the intermediate layer and includes an oxide superconductor having a composition formula represented by RE1Ba2Cu3O7−δ (RE represents one or two or more rare earth elements), in which the oxide superconducting layer includes 0.5 to 10 mol % of a Hf-including compound dispersed in the oxide superconducting layer as an artificial pinning center, a film thickness d of the oxide superconducting layer is d>1 μm, and a current characteristic of Jcd/Jc1≧0.9 (Jc1 represents a critical current density when the thickness of the oxide superconducting layer is 1 μm, and Jcd represents the critical current density when the thickness of the oxide superconducting layer is d μm) is satisfied.

摘要翻译： 基于RE123的超导线包括基材，形成在基材上的中间层和形成在中间层上的氧化物超导层，并且包括具有由RE1Ba2Cu3O7-δ表示的组成式的氧化物超导体（RE表示一个 或两种或更多种稀土元素），其中氧化物超导层包含分散在作为人造钉扎中心的氧化物超导层中的含有Hf的化合物的0.5至10mol％，氧化物超导层的膜厚d为d >1μm，Jcd /Jc1≥0.9的电流特性（Jc1表示当氧化物超导层的厚度为1μm时的临界电流密度，Jcd表示当氧化物超导层的厚度为d时的临界电流密度 μm）。

公开(公告)号：US20110190139A1

公开(公告)日：2011-08-04

申请号：US12973297

申请日：2010-12-20

申请人： Katsumi OHATA ,  Masahiro SEIDO ,  Morio KIMURA

发明人： Katsumi OHATA ,  Masahiro SEIDO ,  Morio KIMURA

IPC分类号： H01B12/04 ,  H01L39/24

CPC分类号： H01B12/04 ,  H01L39/2409 ,  Y10T29/49014 ,  Y10T428/12486

摘要： A method of producing a Nb3Sn superconducting wire rod includes forming a wire rod comprising Nb, Sn and Cu, and having a mole ratio of the Sn expressed as ax+b(1−x), where 0.25≦x≦0.8, 0.3≦a≦0.4 and 0.02≦b≦0.1, and x and 1−x are prescribed as a mole ratio of the Nb and a mole ratio of the Cu, respectively, to a total of a mole number of the Nb and a mole number of the Cu, and heating the wire rod to produce Nb3Sn from the Sn and the Nb. By the heating of the wire rod, a Cu—Sn alloy is produced from the Sn and the Cu, concurrently with the Nb3Sn produced from the Sn and the Nb.

摘要翻译： 制造Nb 3 Sn超导线材的方法包括：形成包含Nb，Sn和Cu的线，并且具有表示为ax + b（1-x）的Sn的摩尔比，其中0.25＆nlE; x＆nlE; 0.8,0.3＆ ; a＆nlE; 0.4和0.02＆nlE; b＆nlE; 0.1和x和1-x被分别规定为Nb的摩尔比和Cu的摩尔比与Nb的总摩尔数和摩尔比 Cu的数量，并且从Sn和Nb中加热线材以产生Nb 3 Sn。 通过线材的加热，与Sn和Nb产生的Nb 3 Sn同时由Sn和Cu生成Cu-Sn合金。

公开(公告)号：US20180152016A1

公开(公告)日：2018-05-31

申请号：US15570825

申请日：2016-07-01

申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Yoshihiro HONDA ,  Shigeki ISOJIMA

IPC分类号： H02H9/02 ,  H01L39/16 ,  H01L39/24 ,  H02H7/00 ,  H01B12/16 ,  H01F6/04 ,  H01F6/02

CPC分类号： H02H9/023 ,  H01B12/04 ,  H01B12/16 ,  H01F6/02 ,  H01F6/04 ,  H01L39/16 ,  H01L39/24 ,  H02H7/001 ,  Y02E40/641 ,  Y02E40/647

摘要： Provided is a superconductive wire comprising: a superconductive wire core which has a first main surface extending in the longitudinal direction and a second main surface located on the side opposite to the first main surface; a first heat dissipation member disposed on the first main surface; and a second heat dissipation member disposed on the second main surface. The first heat dissipation member is connected to the first main surface at a plurality of first connection locations lined up along the longitudinal direction. The second heat dissipation member is connected to the second main surface at a plurality of second connection locations lined up along the longitudinal direction. In the planar view from the thickness direction of the superconductive wire, each of the plurality of first connection locations and a corresponding one of the plurality of second connection locations are arranged with an offset from each other.

公开(公告)号：US09824796B2

公开(公告)日：2017-11-21

申请号：US14894404

申请日：2014-05-28

申请人： International Superconductivity Technology Center ,  FUJIKURA LTD. ,  SWCC SHOWA CABLE SYSTEMS CO., LTD. ,  FURUKAWA ELECTRIC CO., LTD.

发明人： Takato Machi ,  Tomo Yoshida ,  Tatsunori Nakamura ,  Kota Katayama ,  Koichi Nakao ,  Keiichi Tanabe

IPC分类号： H01B12/00 ,  H01B12/04 ,  H01L39/14 ,  H01L39/24 ,  H01B13/00

CPC分类号： H01B12/04 ,  H01B13/0009 ,  H01L39/143 ,  H01L39/2467 ,  H01L39/248

摘要： An oxide superconductor includes: a substrate made of a metal; an insulating intermediate layer provided on the substrate; an oxide superconducting layer provided on the intermediate layer; a metal stabilizing layer provided on the oxide superconducting layer; and a plurality of dividing grooves which divide the metal stabilizing layer and the oxide superconducting layer along a longitudinal direction of the substrate, reach the inside of the intermediate layer through the oxide superconducting layer from the metal stabilizing layer, and do not reach the substrate. The metal stabilizing layer and the oxide superconducting layer are divided to form a plurality of filament conductors by the plurality of dividing grooves, and in each dividing groove of the plurality of dividing grooves, a width of a groove opening portion of the dividing groove is equal to or greater than a width of a groove bottom portion of the dividing groove.

公开(公告)号：US20170287598A1

公开(公告)日：2017-10-05

申请号：US15507583

申请日：2015-11-05

申请人： FUJIKURA LTD.

发明人： Yutaka Adachi

IPC分类号： H01B12/04 ,  C01G3/00 ,  C23C14/34 ,  C01F17/00

CPC分类号： H01B12/04 ,  C01F17/0043 ,  C01G1/00 ,  C01G3/00 ,  C01G3/006 ,  C04B35/4508 ,  C04B35/62218 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/781 ,  C04B2235/785 ,  C04B2235/787 ,  C04B2235/80 ,  C23C14/3485 ,  H01B12/06 ,  H01B13/00 ,  H01F6/06

摘要： An oxide superconductor has a composition expressed by REaBabCu3O7-x, where RE represents one rare earth or a combination of two or more of a rare earth, a satisfies 1.05≦a≦1.35, b satisfies 1.80≦b≦2.05, and x represents an amount of oxygen deficiency, and a non-superconducting phase having an outer diameter of 30 nm or less is included in a superconducting phase.

公开(公告)号：US20160125977A1

公开(公告)日：2016-05-05

申请号：US14894404

申请日：2014-05-28

申请人： INTERNATIONAL SUPERCONDUCTIVITY TECHNOLOGY CENTER ,  FURUKAWA ELECTRIC CO., LTD. ,  SWCC SHOWA CABLE SYSTEMS CO., LTD. ,  FUJIKURA LTD.

发明人： Takato MACHI ,  Tomo YOSHIDA ,  Tatsunori NAKAMURA ,  Kota KATAYAMA ,  Koichi NAKAO ,  Keiichi TANABE

IPC分类号： H01B12/04 ,  H01B13/00

CPC分类号： H01B12/04 ,  H01B13/0009 ,  H01L39/143 ,  H01L39/2467 ,  H01L39/248

摘要： An oxide superconductor includes: a substrate made of a metal; an insulating intermediate layer provided on the substrate; an oxide superconducting layer provided on the intermediate layer; a metal stabilizing layer provided on the oxide superconducting layer; and a plurality of dividing grooves which divide the metal stabilizing layer and the oxide superconducting layer along a longitudinal direction of the substrate, reach the inside of the intermediate layer through the oxide superconducting layer from the metal stabilizing layer, and do not reach the substrate. The metal stabilizing layer and the oxide superconducting layer are divided to form a plurality of filament conductors by the plurality of dividing grooves, and in each dividing groove of the plurality of dividing grooves, a width of a groove opening portion of the dividing groove is equal to or greater than a width of a groove bottom portion of the dividing groove.

摘要翻译： 氧化物超导体包括：由金属制成的衬底; 设置在所述基板上的绝缘中间层; 设置在中间层上的氧化物超导层; 设置在所述氧化物超导层上的金属稳定层; 并且沿着基板的长度方向分割金属稳定层和氧化物超导层的多个分割槽，通过氧化物超导层从金属稳定层到达中间层的内部，并且不到达基板。 金属稳定层和氧化物超导层被分割成多个分割槽形成多个细丝导体，在多个分隔槽的分隔槽中，分隔槽的槽开口部的宽度相等 达到或大于分隔槽的槽底部的宽度。