公开(公告)号：US5169830A

公开(公告)日：1992-12-08

申请号：US567958

申请日：1990-08-15

申请人： Takahiro Wada ,  Shinichi Koriyama ,  Takeshi Sakurai ,  Nobuo Suzuki ,  Takayuki Miyatake ,  Hisao Yamauchi ,  Naoki Koshizuka ,  Shoji Tanaka

发明人： Takahiro Wada ,  Shinichi Koriyama ,  Takeshi Sakurai ,  Nobuo Suzuki ,  Takayuki Miyatake ,  Hisao Yamauchi ,  Naoki Koshizuka ,  Shoji Tanaka

IPC分类号： H01L39/12

CPC分类号： H01L39/126 ,  Y10S505/778

摘要： A superconductive material is disclosed which has the following composition:(R.sub.1-x Ca.sub.x)(Ba.sub.1-y La.sub.y).sub.2 Cu.sub.4 O.sub.8wherein R is at least one element selected from Y, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu, x is a number in the range of 0-0.3 and y is a number in the range of 0.001-0.3 with the proviso that y is not greater than 0.2 when x is not 0.

公开(公告)号：US5468724A

公开(公告)日：1995-11-21

申请号：US68587

申请日：1993-05-27

申请人： Takahiro Wada ,  Shin-ichi Koriyama ,  Takeshi Sakurai ,  Nobuo Suzuki ,  Takayuki Miyatake ,  Hisao Yamauchi ,  Naoki Koshizuka ,  Shoji Tanaka

发明人： Takahiro Wada ,  Shin-ichi Koriyama ,  Takeshi Sakurai ,  Nobuo Suzuki ,  Takayuki Miyatake ,  Hisao Yamauchi ,  Naoki Koshizuka ,  Shoji Tanaka

IPC分类号： C01G3/00 ,  C04B35/45 ,  H01L39/12 ,  H01B12/00

CPC分类号： C01G3/006 ,  C04B35/4504 ,  H01L39/126 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/88 ,  C01P2004/80 ,  C01P2006/14 ,  Y10S505/779 ,  Y10S505/78

摘要： Disclosed herein are high-temperature oxide superconductors of RBa.sub.2 Cu.sub.4 O.sub.8 type, with Ba partly replaced by Sr or Ca, or with R and Ba partly replaced by Ca and Sr, respectively, as represented by the chemical composition formula of R(Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.4 O.sub.8 or R(Ba.sub.1-z Ca.sub.z).sub.2 Cu.sub.4 O.sub.8 or (R.sub.1-x Ca.sub.x) (Ba.sub.1-y Sr.sub.y).sub.2 Cu.sub.4 O.sub.8. They exhibit superconductivity at high temperatures. Especially, the last one exhibits superconductivity at a higher temperature than the former two. All of them can be made with a less amount of Ba as a deleterious substance, and the first two have improved sinterability. The best results are obtained when they are produced by the process involving the hot hydrostatic pressure treatment of the mixture of raw materials at 850.degree.-1100.degree. C. in an atmosphere composed of an inert gas and oxygen. The process permits a wider selection of Ba raw materials.

摘要翻译： 本文公开了RBa2Cu4O8型的高温氧化物超导体，其中Ba部分被Sr或Ca取代，或者R和Ba分别被Ca和Sr部分替代，如R（Ba1-ySry）2Cu4O8的化学组成式所示 或R（Ba1-zCaz）2 Cu4O8或（R1-xCax）（Ba1-ySry）2Cu4O8。 它们在高温下表现出超导性。 特别地，最后一个在比前两个更高的温度下表现出超导性。 所有这些都可以用少量的Ba作为有害物质，前两种具有改善的烧结性。 通过在惰性气体和氧气组成的气氛中，在850〜-1100℃的原料混合物进行热静水压处理的方法制造时，得到最好的结果。 该过程允许更广泛地选择Ba原料。

公开(公告)号：US07718898B2

公开(公告)日：2010-05-18

申请号：US11703165

申请日：2007-02-07

申请人： Hiroyuki Kato ,  Takayuki Miyatake ,  Takayoshi Miyazaki ,  Kyoji Zaitsu

发明人： Hiroyuki Kato ,  Takayuki Miyatake ,  Takayoshi Miyazaki ,  Kyoji Zaitsu

IPC分类号： H01B12/10

CPC分类号： H01L39/2409 ,  Y10S420/901 ,  Y10S505/887 ,  Y10T29/49014 ,  Y10T428/12819

摘要： A precursor for manufacturing a Nb3Sn superconducting wire according to the present invention includes a mono-element wire including a Sn or Sn-based alloy core disposed at the, a Cu or Cu-based alloy matrix and a plurality of Nb or Nb-based alloy filaments surrounding the Sn or Sn-based alloy core, and a diffusion barrier layer and a stabilizing copper layer surrounding the Cu or Cu-based alloy matrix. In a final shape after a reduction process, the average diameter of the Nb or Nb-based alloy filaments is set to 5 μm to 30 μm, and the average distance between the Sn or Sn-based alloy core and the Nb or Nb-based alloy filaments nearest the Sn or Sn-based alloy core is set to 100 μm or less.

摘要翻译： 根据本发明的用于制造Nb 3 Sn超导线的前体包括一个单元线，其包括设置在Cu或Cu基合金基体上的Sn或Sn基合金芯，以及多个Nb或Nb基合金 围绕Sn或Sn基合金芯的细丝以及围绕Cu或Cu基合金基体的扩散阻挡层和稳定的铜层。 在还原处理后的最终形状中，将Nb或Nb基合金丝的平均直径设定为5μm〜30μm，将Sn或Sn系合金芯与Nb或Nb系合金的平均距离 最接近Sn或Sn基合金芯的合金丝被设定为100μm以下。

公开(公告)号：US20070186998A1

公开(公告)日：2007-08-16

申请号：US11703165

申请日：2007-02-07

申请人： Hiroyuki Kato ,  Takayuki Miyatake ,  Takayoshi Miyazaki ,  Kyoji Zaitsu

发明人： Hiroyuki Kato ,  Takayuki Miyatake ,  Takayoshi Miyazaki ,  Kyoji Zaitsu

IPC分类号： H01L39/24

CPC分类号： H01L39/2409 ,  Y10S420/901 ,  Y10S505/887 ,  Y10T29/49014 ,  Y10T428/12819

摘要： A precursor for manufacturing a Nb3Sn superconducting wire according to the present invention includes a mono-element wire including a Sn or Sn-based alloy core disposed at the, a Cu or Cu-based alloy matrix and a plurality of Nb or Nb-based alloy filaments surrounding the Sn or Sn-based alloy core, and a diffusion barrier layer and a stabilizing copper layer surrounding the Cu or Cu-based alloy matrix. In a final shape after a reduction process, the average diameter of the Nb or Nb-based alloy filaments is set to 5 μm to 30 μm, and the average distance between the Sn or Sn-based alloy core and the Nb or Nb-based alloy filaments nearest the Sn or Sn-based alloy core is set to 100 μm or less.

摘要翻译： 根据本发明的用于制造Nb 3 Sn超导线的前体包括一个单元线，其包括设置在Cu或Cu基合金基体上的Sn或Sn基合金芯， 围绕Sn或Sn基合金芯的多个Nb或Nb基合金丝，以及包围Cu或Cu基合金基体的扩散阻挡层和稳定的铜层。 在还原处理后的最终形状中，Nb或Nb系合金丝的平均直径为5μm〜30μm，Sn或Sn系合金芯与Nb或Nb基合金的平均距离 最接近Sn或Sn基合金芯的合金丝被设定为100μm以下。

公开(公告)号：US07566414B2

公开(公告)日：2009-07-28

申请号：US11367459

申请日：2006-03-06

申请人： Takayoshi Miyazaki ,  Takayuki Miyatake ,  Hiroyuki Kato ,  Kyoji Zaitsu

发明人： Takayoshi Miyazaki ,  Takayuki Miyatake ,  Hiroyuki Kato ,  Kyoji Zaitsu

IPC分类号： B22F5/12 ,  H01L39/24

CPC分类号： H01L39/2409

摘要： A method for manufacturing a powder-metallurgy processed Nb3Sn superconducting wire is provided. In the method, a sheath made of Nb or a Nb alloy is filled with a raw material powder containing Sn. The sheath filled with the raw material powder is subjected to diameter reduction to form a wire. The wire is heat-treated to form a superconducting phase at the internal surface of the sheath. The raw material powder is prepared by adding a Sn powder to a Cu—Sn alloy powder or a Cu—Sn intermetallic compound powder, and is compacted under isotropic pressure.

摘要翻译： 提供了一种制造粉末冶金处理的Nb 3 Sn超导线的方法。 在该方法中，用含有Sn的原料粉末填充由Nb或Nb合金制成的护套。 将填充有原料粉末的护套进行直径减小以形成导线。 电线被热处理以在护套的内表面形成超导相。 通过向Cu-Sn合金粉末或Cu-Sn金属间化合物粉末中添加Sn粉末，在各向同性压力下压实而制备原料粉末。

公开(公告)号：US20060216191A1

公开(公告)日：2006-09-28

申请号：US11367459

申请日：2006-03-06

申请人： Takayoshi Miyazaki ,  Takayuki Miyatake ,  Hiroyuki Kato ,  Kyoji Zaitsu

发明人： Takayoshi Miyazaki ,  Takayuki Miyatake ,  Hiroyuki Kato ,  Kyoji Zaitsu

IPC分类号： B22F7/00

CPC分类号： H01L39/2409

摘要： A method for manufacturing a powder-metallurgy processed Nb3Sn superconducting wire is provided. In the method, a sheath made of Nb or a Nb alloy is filled with a raw material powder containing Sn. The sheath filled with the raw material powder is subjected to diameter reduction to form a wire. The wire is heat-treated to form a superconducting phase at the internal surface of the sheath. The raw material powder is prepared by adding a Sn powder to a Cu—Sn alloy powder or a Cu—Sn intermetallic compound powder, and is compacted under isotropic pressure.

摘要翻译： 提供了一种制造粉末冶金处理的Nb 3 Sn超导线的方法。 在该方法中，用含有Sn的原料粉末填充由Nb或Nb合金制成的护套。 将填充有原料粉末的护套进行直径减小以形成导线。 电线被热处理以在护套的内表面形成超导相。 通过向Cu-Sn合金粉末或Cu-Sn金属间化合物粉末中添加Sn粉末，在各向同性压力下压实而制备原料粉末。

公开(公告)号：US20090176650A1

公开(公告)日：2009-07-09

申请号：US11580011

申请日：2006-10-13

申请人： Takayuki Miyatake ,  Takayoshi Miyazaki ,  Hiroyuki Kato ,  Kyoji Zaitsu

发明人： Takayuki Miyatake ,  Takayoshi Miyazaki ,  Hiroyuki Kato ,  Kyoji Zaitsu

IPC分类号： H01L39/24

CPC分类号： H01L39/2409 ,  Y10T29/49014

摘要： An internal diffusion process Nb3Sn superconducting wire is produced by drawing a composite wire including a composite material containing a plurality of Nb or Nb based alloy cores embedded in a Cu or Cu based alloy matrix and a Sn or Sn based alloy core disposed in the center portion, a diffusion barrier layer composed of Nb or Ta and disposed on the outer perimeter of the composite material, and stabilizing Cu disposed on the outside of the diffusion barrier layer and heat-treating the resulting composite wire so as to diffuse Sn and react Sn with the Nb or Nb based alloy cores, wherein the area percentage of the stabilizing Cu in a cross section in a direction perpendicular to the axis center of the composite wire is 10% to 35% and the area percentage of the diffusion barrier layer is 10% to 25%.

摘要翻译： 内部扩散工艺Nb3Sn超导线是通过拉制包含复合材料的复合材料制成的，复合材料包含嵌入Cu或Cu基合金基体中的多个Nb或Nb基合金芯，以及设置在中心部分中的Sn或Sn基合金芯 ，由Nb或Ta组成的扩散阻挡层，设置在复合材料的外周上，并且稳定设置在扩散阻挡层外侧的Cu，并对所得的复合线进行热处理，以使Sn扩散并使Sn与 Nb或Nb基合金芯，其中在垂直于复合线的轴心的方向上的截面中的稳定化Cu的面积百分比为10％〜35％，扩散阻挡层的面积百分比为10％ 至25％。

公开(公告)号：US20070052507A1

公开(公告)日：2007-03-08

申请号：US11501043

申请日：2006-08-09

申请人： Kyoji Zaitsu ,  Takayuki Miyatake ,  Takayoshi Miyazaki ,  Osamu Ozaki ,  Kazuhiro Fukuyama

发明人： Kyoji Zaitsu ,  Takayuki Miyatake ,  Takayoshi Miyazaki ,  Osamu Ozaki ,  Kazuhiro Fukuyama

IPC分类号： H01F6/00

CPC分类号： H01F6/06 ,  G01R33/3815 ,  H01F5/02 ,  H01F27/2847 ,  H01F41/098

摘要： A bobbin for a superconducting coil includes a cylindrical drum, and a tapered portion extending from each end of the drum. A superconducting wire or a precursor of the superconducting wire shaped like a tape is helically wound around the drum in multiple layers. The tapered portion has a tapered surface that is inclined at an arbitrary angle.

摘要翻译： 用于超导线圈的线轴包括圆筒形滚筒和从滚筒的每端延伸的锥形部分。 超导线或类似带的超导线的前体以多层螺旋缠绕在滚筒上。 锥形部分具有以任意角度倾斜的锥形表面。

公开(公告)号：US20060204779A1

公开(公告)日：2006-09-14

申请号：US11358042

申请日：2006-02-22

申请人： Takayuki Miyatake ,  Takayoshi Miyazaki ,  Hiroyuki Kato ,  Kyoji Zaitsu

发明人： Takayuki Miyatake ,  Takayoshi Miyazaki ,  Hiroyuki Kato ,  Kyoji Zaitsu

IPC分类号： H01L39/24

CPC分类号： H01L39/2409 ,  Y10T428/12708

摘要： A method for fabricating a Nb3Sn superconducting wire includes the steps of loading or inserting a core material containing at least Sn into a pipe member made of Nb or a Nb alloy, inserting the pipe member into a Cu billet to form a composite member, subjecting the composite member to diameter reduction, and then heat-treating the composite member to form a Nb3Sn superconducting layer from the inner surface of the pipe member, wherein, in the pipe member made of Nb or the Nb alloy after the diameter reduction, the average crystal grain size is 0.1 to 2 μm, and preferably, the total concentration of oxygen, nitrogen, and carbon is 120 ppm or less.

摘要翻译： 制造Nb 3 Sn超导线的方法包括以下步骤：将至少含有Sn的芯材装入或插入由Nb或Nb合金制成的管件中，将管件插入Cu 坯料以形成复合构件，使复合构件直径减小，然后从管构件的内表面对复合构件进行热处理以形成Nb 3 Sn超导层，其中，在 在直径减小后由Nb或Nb合金制成的管构件，平均结晶粒径为0.1〜2μm，优选氧，氮，碳的总浓度为120ppm以下。