公开(公告)号：US20100227765A1

公开(公告)日：2010-09-09

申请号：US11990147

申请日：2006-09-22

申请人： Eisaku Ueno ,  Takeshi Kato ,  Jun Fujikami

发明人： Eisaku Ueno ,  Takeshi Kato ,  Jun Fujikami

IPC分类号： G01N27/00 ,  G01R19/00

CPC分类号： G01R33/1246 ,  G01R33/072

摘要： A method of measuring the critical current value of a superconducting wire comprises the step of measuring first to mth (m denotes an integer of at least 2) current values (I1, I2, . . . , Im) and first to mth voltage values (V1, V2, . . . , Vm) corresponding to the respective ones of the first to mth current values. The first current value I1 and the first voltage value V1 are measured by retaining the current fed from a constant current source to the superconducting wire in a state set to a first set value I1a for a constant time and thereafter measuring the current flowing through the superconducting wire and a voltage generated in the superconducting wire. The kth (k denotes an integer satisfying 2≦k≦m) current value Ik and the kth voltage value Vk are measured by retaining the current fed from the constant current source to the superconducting wire in a state set to a kth set value Ika higher than a (k−1)th set value for the constant time and thereafter measuring the current flowing through the superconducting wire and the voltage generated in the superconducting wire. Thus, a correct critical current value can be measured.

摘要翻译： 测量超导线的临界电流值的方法包括以下步骤：首先测量（m表示至少为2的整数）电流值（I1，I2，...，Im）和第一至第m电压值 V1，V2，...，Vm）对应于第一至第m电流值中的相应值。 第一电流值I1和第一电压值V1通过将从恒定电流源馈送的电流保持在设定为第一设定值I1a的状态达到恒定时间，然后测量流过超导的电流来测量超导线 电线和在超导线中产生的电压。 第k个（k表示满足2＆nlE; k＆nlE; m）的整数，电流值Ik和第k个电压值Vk是通过将恒定电流源馈送到超导线的电流保持在设定为第k个设定值Ika的状态下来测量的 比第（k-1）个恒定时间的设定值，然后测量流过超导线的电流和在超导线中产生的电压。 因此，可以测量正确的临界电流值。

公开(公告)号：US5358929A

公开(公告)日：1994-10-25

申请号：US19976

申请日：1993-02-19

申请人： Jun Fujikami ,  Kenichi Sato ,  Nobuhiro Shibuta ,  Hidehito Mukai ,  Takeshi Kato

发明人： Jun Fujikami ,  Kenichi Sato ,  Nobuhiro Shibuta ,  Hidehito Mukai ,  Takeshi Kato

IPC分类号： H01F6/06 ,  H01L39/02 ,  H01R4/68 ,  H01R43/00

CPC分类号： H01F6/065 ,  H01L39/02 ,  H01R4/68 ,  Y10S505/925

摘要： Disclosed herein is a method which enables permanent current junction of a tape-type oxide superconducting wire and suppresses reduction of its critical current. An end portion of a tape-type wire (10) to be joined is removed to expose oxide superconductor filaments. Another tape-type wire (10') to be joined with the wire (10) is processed in a similar manner. The tape-type wires (10, 10') are so superposed that the surfaces exposing the filaments face with each other, and the superposed portions are pressed in a direction perpendicular to principal surfaces of the tapes and heat treated at a temperature of 800.degree. to 900.degree. C., to be completely joined with each other.

摘要翻译： 这里公开了一种能够实现带状氧化物超导线的永久电流接合并且抑制其临界电流的降低的方法。 去除要连接的带状导线（10）的端部以暴露氧化物超导体细丝。 与线（10）接合的另一条带状线（10'）以类似的方式被处理。 带状电线（10,10'）重叠，使得暴露于灯丝的表面彼此面对，并且叠置部分沿垂直于带的主表面的方向被按压并在800℃的温度下进行热处理 至900℃，彼此完全接合。

公开(公告)号：US06552260B2

公开(公告)日：2003-04-22

申请号：US09758261

申请日：2001-01-12

申请人： Jun Fujikami ,  Toru Okazaki ,  Takato Masuda ,  Takeshi Kato ,  Hiroyasu Yumura ,  Yoshihisa Takahashi ,  Kimiyoshi Matsuo ,  Shoichi Honjo ,  Tomoo Mimura

发明人： Jun Fujikami ,  Toru Okazaki ,  Takato Masuda ,  Takeshi Kato ,  Hiroyasu Yumura ,  Yoshihisa Takahashi ,  Kimiyoshi Matsuo ,  Shoichi Honjo ,  Tomoo Mimura

IPC分类号： H01B1202

CPC分类号： H01B12/00 ,  Y02E40/64 ,  Y10T29/49014

摘要： A superconducting cable includes a core material, conductor layers formed by means of helically winding superconducting wires around the core material, electrically insulating layers, and magnetic shielding layers formed by means of helically winding superconducting wires around each of the electrically shielding layers. The superconducting wire is wound at the shortest pitch on the outermost conductor layer and is wound at the longest pitch on the outermost magnetic shielding layer.

摘要翻译： 超导电缆包括芯材料，通过螺旋缠绕芯材周围的超导线形成的导体层，电绝缘层和通过围绕每个电屏蔽层螺旋缠绕超导线形成的磁屏蔽层。 超导线以最短的间距缠绕在最外面的导体层上，并以最长的间距缠绕在最外面的磁屏蔽层上。

公开(公告)号：US07784169B2

公开(公告)日：2010-08-31

申请号：US10569829

申请日：2005-02-17

申请人： Jun Fujikami ,  Takeshi Kato

发明人： Jun Fujikami ,  Takeshi Kato

IPC分类号： H01B12/00 ,  H01B13/00

CPC分类号： H01L39/248 ,  Y10T29/49014

摘要： 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, the step of first rolling a multifilamentary wire after the step of drawing, and the step of first sintering the multifilamentary wire 1 after the step of the first rolling. At least one of an interval between the step of drawing and the step of the first rolling and an interval between the step of the first rolling and the step of the first sintering is less than seven days. With this method, a superconducting wire having high and uniform performance can be obtained.

摘要翻译： 制造超导线的方法包括以下步骤：通过用金属涂覆用于超导体的原料粉末而形成的线，在拉拔步骤之后首先轧制多丝线的步骤，以及首先烧结多丝线 1后第一次滚动的步骤。 拉伸步骤与第一次轧制步骤之间的间隔和第一次轧制步骤与第一次烧结步骤之间的间隔中的至少一个小于七天。 通过这种方法，可以获得具有高且均匀性能的超导线。

公开(公告)号：US20070060481A1

公开(公告)日：2007-03-15

申请号：US10569829

申请日：2005-02-17

申请人： Jun Fujikami ,  Takeshi Kato

发明人： Jun Fujikami ,  Takeshi Kato

IPC分类号： H01L39/24

CPC分类号： H01L39/248 ,  Y10T29/49014

摘要： 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.

摘要翻译： 制造超导线的方法包括以下步骤：通过用金属（S 6）涂覆用于超导体的原料粉末形成的线，在拉拔步骤之后第一次轧制（S8）滚动多丝线的步骤 S 6），以及在第一次轧制步骤之后第一次烧结（S10）烧结复丝1的步骤（S8）。 拉伸步骤（S6）和第一次轧制步骤（S8）之间的间隔和第一轧制步骤（S8）与第一次烧结步骤（S10）之间的间隔中的至少一个 ）不到七天。 通过这种方法，可以获得具有高且均匀性能的超导线。

公开(公告)号：US08296928B2

公开(公告)日：2012-10-30

申请号：US12855613

申请日：2010-08-12

申请人： Jun Fujikami ,  Takeshi Kato

发明人： Jun Fujikami ,  Takeshi Kato

IPC分类号： H01B12/00 ,  H01B13/00

CPC分类号： H01L39/248 ,  Y10T29/49014

摘要： 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.

摘要翻译： 制造超导线的方法包括：通过用金属（S6）涂覆用于超导体的原料粉末而形成的线的步骤，在拉伸步骤之后首先滚轧（S8）轧制复丝的步骤（S6） 以及在第一次轧制的步骤之后首先烧结（S10）烧结多丝线1的步骤（S8）。 拉拔步骤（S6）和第一轧制步骤（S8）之间的间隔和第一轧制步骤（S8）和第一烧结步骤（S10）之间的间隔中的至少一个小于 7天。 通过这种方法，可以获得具有高且均匀性能的超导线。

公开(公告)号：US20100323901A1

公开(公告)日：2010-12-23

申请号：US12855613

申请日：2010-08-12

申请人： Jun Fujikami ,  Takeshi Kato

发明人： Jun Fujikami ,  Takeshi Kato

IPC分类号： H01L39/24

CPC分类号： H01L39/248 ,  Y10T29/49014

摘要： 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.

摘要翻译： 制造超导线的方法包括：通过用金属（S6）涂覆用于超导体的原料粉末而形成的线的步骤，在拉伸步骤之后首先滚轧（S8）轧制多丝线的步骤（S6） 以及在第一次轧制的步骤之后首先烧结（S10）烧结多丝线1的步骤（S8）。 拉拔步骤（S6）和第一轧制步骤（S8）之间的间隔和第一轧制步骤（S8）和第一烧结步骤（S10）之间的间隔中的至少一个小于 7天。 通过这种方法，可以获得具有高且均匀性能的超导线。

公开(公告)号：US20100248969A1

公开(公告)日：2010-09-30

申请号：US12160353

申请日：2007-08-08

申请人： Jun Fujikami ,  Naoki Ayai ,  Takeshi Kato ,  Shin-ichi Kobayashi

发明人： Jun Fujikami ,  Naoki Ayai ,  Takeshi Kato ,  Shin-ichi Kobayashi

IPC分类号： H01B12/08 ,  H01L39/24 ,  H01L39/08 ,  H01F6/06 ,  G01R33/3815 ,  H01B1/20 ,  H01B7/08

CPC分类号： H01B12/10 ,  H01L39/143 ,  H01L39/248 ,  Y02E40/644

摘要： The invention offers an oxide superconducting wire, a superconducting structure, a method of producing an oxide superconducting wire, a superconducting cable, a superconducting magnet, and a product incorporating the superconducting magnet. The oxide superconducting wire is a tape-shaped oxide superconducting wire in which a plurality of filaments, each of which has a Bi-2223-based oxide superconductor, are embedded in a matrix. The oxide superconducting wire has a cross-sectional area of at most 0.5 mm2 in a cross section perpendicular to the direction of its length. In the cross section of the oxide superconducting wire, the filaments have an average cross-sectional area per filament of at least 0.2% and at most 6% of the cross-sectional area of the oxide superconducting wire. Having the above features, the oxide superconducting wire can not only increase its critical current density but also decrease its AC loss.

摘要翻译： 本发明提供氧化物超导线，超导结构，生产氧化物超导线的方法，超导电缆，超导磁体和结合超导磁体的产品。 氧化物超导线是一种带状氧化物超导线，其中多个具有Bi-2223的氧化物超导体的细丝嵌入基体中。 氧化物超导线在与其长度方向垂直的截面中具有至多0.5mm 2的横截面积。 在氧化物超导线的横截面中，长丝的平均截面积为每根细丝的氧化物超导线的横截面积的至少0.2％且至多6％。 具有上述特征，氧化物超导线不仅可以增加其临界电流密度，还可以降低其交流损耗。

公开(公告)号：US07749557B2

公开(公告)日：2010-07-06

申请号：US10569739

申请日：2005-02-17

申请人： Jun Fujikami ,  Takeshi Kato

发明人： Jun Fujikami ,  Takeshi Kato

IPC分类号： B05D5/12 ,  H01L39/24

CPC分类号： H01L39/248 ,  Y10S505/74 ,  Y10T29/5187

摘要： 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 or a wire with a multifilamentary structure, the step of sealing an end portion of a clad wire or a multifilamentary wire after the step of drawing, and the step of first rolling, rolling the multifilamentary wire after the step of sealing. With this method, a superconducting wire having high and uniform performance can be obtained.

摘要翻译： 制造超导线的方法包括：通过用金属或具有多丝结构的线涂覆超导体的原料粉末而形成的线的步骤，在包覆线或多丝线的端部之后密封包层线或多丝线的端部的步骤 拉拔步骤，以及第一次轧制步骤，在密封步骤之后滚动多丝线。 通过这种方法，可以获得具有高且均匀性能的超导线。

公开(公告)号：US07596852B2

公开(公告)日：2009-10-06

申请号：US10568537

申请日：2005-02-17

申请人： Jun Fujikami ,  Takeshi Kato

发明人： Jun Fujikami ,  Takeshi Kato

IPC分类号： H01L39/24

CPC分类号： H01L39/248 ,  Y10T29/49014

摘要： 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, the step of first rolling rolling a multifilamentary wire after the step of drawing, and the step of first sintering sintering the multifilamentary wire after the step of the first rolling. The method further includes the step of holding a clad wire, a multifilamentary wire, or a multifilamentary wire under a reduced-pressure atmosphere in at least one of an interval between the step of drawing and the step of the first rolling and an interval between the step of the first rolling and the step of the first sintering.

摘要翻译： 制造超导线的方法包括以下步骤：通过用金属涂覆用于超导体的原料粉末而形成的线，在拉拔步骤之后首先轧制多丝线的步骤，以及首先烧结烧结步骤 多丝线后第一次滚动步骤。 该方法还包括以下步骤中的至少一个：在拉伸步骤和第一次滚动步骤之间的间隔中的至少一个中，并且在减压气氛下保持包覆线，多丝线或多丝线， 第一次轧制的步骤和第一次烧结的步骤。