公开(公告)号：US5926942A

公开(公告)日：1999-07-27

申请号：US832796

申请日：1997-04-04

申请人： Yoshio Kubo ,  Kunihiko Egawa ,  Hiroko Higuma ,  Takayuki Nagai ,  Fusaoki Uchikawa

发明人： Yoshio Kubo ,  Kunihiko Egawa ,  Hiroko Higuma ,  Takayuki Nagai ,  Fusaoki Uchikawa

IPC分类号： C22F1/00 ,  H01B12/10 ,  H01B13/00 ,  H01L39/24

CPC分类号： H01L39/2403 ,  H01L39/2409 ,  Y10S505/812 ,  Y10S505/821 ,  Y10S505/884 ,  Y10T29/49014 ,  Y10T428/12438 ,  Y10T428/12486

摘要： A compound superconducting wire comprising a matrix of CuX alloy and a multiplicity of Z.sub.3 X filaments embedded in the matrix in a spaced relationship so as not to come into contact with each other wherein X is Sn or Ga and Z.sub.3 X is Nb.sub.3 Sn or V.sub.3 Ga. In a precursor, therefore, a multiplicity of filaments of a base metal material Z such as Nb are arranged in a Cu base metal matrix concentrically in layers around a center core of a base metal material X such as Sn, in which the spacing between any adjacent filaments arranged in a former boundary region of an .epsilon.-phase bronze layer having a certain radius from the center produced when the precursor is preheat-treated at a temperature of 300.degree. to 600.degree. C. is made larger than the spacing between any adjacent filaments arranged in the other matrix regions. Also disclosed is a precursor wire wherein a composite of a Cu base metal material and a base metal material X capable of forming an alloy with the Cu base metal material is used as a matrix without arranging a core of the base metal material X at the center, and a multiplicity of filaments of a base metal material Z are embedded in the composite in a spaced relationship.

摘要翻译： 一种复合超导线，其包含CuX合金基体和以相互间隔的关系嵌入基体中的多个Z3X细丝，以便彼此不接触，其中X是Sn或Ga，Z3X是Nb3Sn或V3Ga。 因此，在前体中，贱金属材料Z（例如Nb）的多根长丝以Cu基体金属基体中心地排列在诸如Sn之类的基体金属材料X的中心芯周围的层中，其中任何 布置在从300度到600度的温度下进行预热处理时产生的中心产生的具有一定半径的ε相青铜层的前边界区域中的相邻长丝的尺寸大于任何相邻 布置在其他矩阵区域中的细丝。 还公开了一种母体线，其中使用能够与Cu基底金属材料形成合金的Cu基底金属材料和贱金属材料X的复合物作为基体，而不将基体金属材料X的芯排列在中心 ，并且多个基体金属材料Z的长丝以间隔的关系嵌入复合材料中。

公开(公告)号：US20050281700A1

公开(公告)日：2005-12-22

申请号：US11057226

申请日：2005-02-15

申请人： Kunihiko Egawa ,  Yoshio Kubo ,  Takayuki Nagai ,  Takanori Sone ,  Kiyoshi Hiramoto ,  Masayoshi Wake

发明人： Kunihiko Egawa ,  Yoshio Kubo ,  Takayuki Nagai ,  Takanori Sone ,  Kiyoshi Hiramoto ,  Masayoshi Wake

IPC分类号： H01K3/02 ,  H01L39/24

CPC分类号： H01L39/2409 ,  Y10T29/49014 ,  Y10T29/49117

摘要： A method of producing Nb3Sn superconducting wire, including the steps of: preparing a plurality of Sn modules obtained by burying Sn-based metal cores in a Cu-based metal matrix and a plurality of Nb modules obtained by burying Nb-based metal filaments in a Cu-based metal matrix; bundling the Nb modules and the Sn modules such that the Nb modules surround the Sn modules and obtaining an assembly; inserting the assembly in a tubular member of Cu-based metal which internally comprises tube-like shaped Ta-based metal or Nb-based metal which serves as a diffusion barrier and obtaining a composite; drawing the composite; and heat-treating the composite.

摘要翻译： 一种制造Nb 3 Sn超导线的方法，包括以下步骤：制备通过将Cu基金属芯埋入Cu基金属基体中而获得的多个Sn模块和多个Nb模块 通过将Nb基金属细丝埋入Cu基金属基体中; 捆绑Nb模块和Sn模块，使得Nb模块围绕Sn模块并获得组件; 将组件插入Cu基金属的管状构件中，其内部包括用作扩散阻挡层并获得复合材料的管状Ta基金属或Nb基金属; 绘制复合材料; 并对该复合材料进行热处理。

公开(公告)号：US06548187B2

公开(公告)日：2003-04-15

申请号：US09983340

申请日：2001-10-24

申请人： Takayuki Nagai ,  Yoshio Kubo ,  Kunihiko Egawa ,  Osamu Taguchi

发明人： Takayuki Nagai ,  Yoshio Kubo ,  Kunihiko Egawa ,  Osamu Taguchi

IPC分类号： B21D3900

CPC分类号： H01L39/2409 ,  B22D7/005 ,  C22C1/02 ,  C22C13/00 ,  Y10S420/901 ,  Y10T428/12431 ,  Y10T428/12486 ,  Y10T428/12708 ,  Y10T428/12819

摘要： A method for manufacturing a Sn-based alloy containing a finely dispersed Sn—Ti compound includes melting Sn by heating to a temperature in a range from 1300 to 1500° C. in vacuum or an inert gas atmosphere, adding 0.1 to 5% by weight of Ti followed by melting by heating, and casting the molten alloy into a copper mold directly or through a pouring cup. The Sn-based alloy obtained by this method contains the Sn—Ti compound having a maximum particle diameter of 30 &mgr;m and a mean particle diameter of 5 to 20 &mgr;m. A precursor of a Nb3Sn wire is also obtained by an inner diffusion method using this Sn-based alloy. The Nb3Sn wire manufactured by using the Sn-based alloy of the present invention exhibits excellent superconductive characteristics. The method of the present invention enables the ingot to be free from a shrinkage cavity appearing during prior art manufacturing processes.

摘要翻译： 含有精细分散的Sn-Ti化合物的Sn系合金的制造方法包括在真空或惰性气体气氛中加热至1300〜1500℃的温度而使Sn熔融，添加0.1〜5重量％ 的Ti，然后通过加热熔化，并将熔融合金直接或通过浇注杯铸造成铜模具。 通过该方法得到的Sn系合金含有最大粒径为30μm，平均粒径为5〜20μm的Sn-Ti化合物。 通过使用该Sn系合金的内部扩散法也可以得到Nb 3 Sn线的前体。 通过使用本发明的Sn系合金制造的Nb 3 Sn线具有优异的超导特性。 本发明的方法能够使铸锭在现有技术的制造过程中不会出现收缩空腔。

公开(公告)号：US5501746A

公开(公告)日：1996-03-26

申请号：US380723

申请日：1995-01-30

申请人： Kunihiko Egawa ,  Yoshio Kubo ,  Takayuki Nagai ,  Fusaoki Uchikawa ,  Shoji Miyashita ,  Hiroko Higuma

发明人： Kunihiko Egawa ,  Yoshio Kubo ,  Takayuki Nagai ,  Fusaoki Uchikawa ,  Shoji Miyashita ,  Hiroko Higuma

IPC分类号： H01L39/24 ,  C22F1/16

CPC分类号： H01L39/2403 ,  Y10T29/49014

摘要： A process for preparing a superconducting wire having improved superconducting characteristics in shortened period of time at a reduced cost, which comprises the steps of forming a plurality of holes in each of Cu base metal plates, stuffing the plates in a supporting container to form a stacked body of the plates with their holes aligned with each other, stuffing a superconductor or a material convertible into a superconductor by a heat treatment into the resulting through-holes of the stacked body, evacuating and sealing the supporting container to form a composite billet, and processing the composite billet in a usual manner to give a superconducting wire.

摘要翻译： 一种制造超导线材的方法，其以缩短的成本在缩短的时间内制备具有改进的超导特性，其包括以下步骤：在每个Cu基底金属板中形成多个孔，将所述板填充在支撑容器中以形成堆叠 板的主体彼此对准，将超导体或通过热处理可转换成超导体的材料填充到堆叠体的所得通孔中，抽空并密封支撑容器以形成复合坯料，以及 以常规方式处理复合坯料以得到超导线材。

公开(公告)号：US20060289836A1

公开(公告)日：2006-12-28

申请号：US11156590

申请日：2005-06-21

申请人： Kunihiko Egawa ,  Yoshio Kubo ,  Takayuki Nagai ,  Takanori Sone

发明人： Kunihiko Egawa ,  Yoshio Kubo ,  Takayuki Nagai ,  Takanori Sone

IPC分类号： H01L39/24

CPC分类号： H01L39/2409

摘要： A precursor wire for the Nb—Sn phase superconducting wire includes a structure having a plurality of modules each composed by arranging a Sn-based metal core in a Cu-based metal matrix and the Nb-based metal filaments concentrically around the core is obtained by adjusting the amount of the Sn-based metal cores in each module to form the boundaries of the ε-phase bronze layers to be formed by reaction of Sn of the Sn-based metal cores and Cu-based metal matrix by the heat-treatment in the range including all of or a ratio of approximately not lower than 0.08 and not more than 0.32 of the existence region the Nb-based metal filaments.

摘要翻译： 用于Nb-Sn相超导线的母体线包括具有多个模块的结构，每个模块通过在Cu基金属基体中布置Sn基金属芯而构成，并且通过在核心周围同心的Nb基金属细丝获得通过 调整每个模块中的Sn基金属芯的量，以形成通过热处理使Sn系金属芯和Cu系金属基体的Sn反应而形成的ε相青铜层的边界 Nb系金属丝的存在区域的全部或比例大致不低于0.08且不大于0.32的范围。

公开(公告)号：US5413981A

公开(公告)日：1995-05-09

申请号：US93137

申请日：1993-07-19

申请人： Kunihiko Egawa ,  Toshio Umemura ,  Shinichi Kinouchi ,  Mitsunobu Wakata ,  Shin Utsunomiya ,  Ayumi Nozaki

发明人： Kunihiko Egawa ,  Toshio Umemura ,  Shinichi Kinouchi ,  Mitsunobu Wakata ,  Shin Utsunomiya ,  Ayumi Nozaki

IPC分类号： H01L39/24 ,  H01B12/00 ,  H01L39/12

CPC分类号： H01L39/2483 ,  Y10S505/782 ,  Y10S505/784 ,  Y10S505/785

摘要： A method for manufacturing the oxide superconductor according to the present invention comprises the steps of: mixing a starting material including Bi, Sr, Ca and Cu such that a mole ratio of Bi, Sr, Ca and Cu is 2:2+a:1+b:2+c, wherein a.gtoreq.0, b.gtoreq.0, c.gtoreq.0, and 0

摘要翻译： 根据本发明的制造氧化物超导体的方法包括以下步骤：将包含Bi，Sr，Ca和Cu的原料混合，使得Bi，Sr，Ca和Cu的摩尔比为2:2 + a:1 + b：2 + c，其中a> / = 0，b> / = 0，c> / = 0和0 / = x <1）细分散在Bi2Sr2Ca1Cu2Oy（其中y约为8）的超导晶体中。 沉淀物作为磁通钉扎中心。 此外，根据本发明的氧化物超导体包括由Bi，Sr，Ca和Cu氧化物组成的超导结晶，并且将包含Pt作为主要成分的分离的氧化物相被精细地分散在超导晶体中。 这些细分散的氧化物包括Pt作为磁通钉扎中心。

公开(公告)号：US07210216B2

公开(公告)日：2007-05-01

申请号：US11057226

申请日：2005-02-15

申请人： Kunihiko Egawa ,  Yoshio Kubo ,  Takayuki Nagai ,  Takanori Sone ,  Kiyoshi Hiramoto ,  Masayoshi Wake

发明人： Kunihiko Egawa ,  Yoshio Kubo ,  Takayuki Nagai ,  Takanori Sone ,  Kiyoshi Hiramoto ,  Masayoshi Wake

IPC分类号： H01L39/24

CPC分类号： H01L39/2409 ,  Y10T29/49014 ,  Y10T29/49117

摘要： A method of producing Nb3Sn superconducting wire, including the steps of: preparing a plurality of Sn modules obtained by burying Sn-based metal cores in a Cu-based metal matrix and a plurality of Nb modules obtained by burying Nb-based metal filaments in a Cu-based metal matrix; bundling the Nb modules and the Sn modules such that the Nb modules surround the Sn modules and obtaining an assembly; inserting the assembly in a tubular member of Cu-based metal which internally comprises tube-like shaped Ta-based metal or Nb-based metal which serves as a diffusion barrier and obtaining a composite; drawing the composite; and heat-treating the composite.

摘要翻译： 一种制造Nb 3 Sn超导线的方法，包括以下步骤：制备通过将Sn基金属芯埋入Cu基金属基体中而获得的多个Sn模块和获得的多个Nb模块 通过将Nb基金属细丝埋入Cu基金属基体中; 捆绑Nb模块和Sn模块，使得Nb模块围绕Sn模块并获得组件; 将组件插入Cu基金属的管状构件中，其内部包括用作扩散阻挡层并获得复合材料的管状Ta基金属或Nb基金属; 绘制复合材料; 并对该复合材料进行热处理。

公开(公告)号：US5753862A

公开(公告)日：1998-05-19

申请号：US167061

申请日：1993-12-16

申请人： Yoshio Kubo ,  Kunihiko Egawa ,  Hiroko Higuma ,  Takayuki Nagai ,  Fusaoki Uchikawa

发明人： Yoshio Kubo ,  Kunihiko Egawa ,  Hiroko Higuma ,  Takayuki Nagai ,  Fusaoki Uchikawa

IPC分类号： C22F1/00 ,  H01B12/10 ,  H01B13/00 ,  H01L39/24 ,  H01B12/00

CPC分类号： H01L39/2403 ,  H01L39/2409 ,  Y10S505/812 ,  Y10S505/821 ,  Y10S505/884 ,  Y10T29/49014 ,  Y10T428/12438 ,  Y10T428/12486

摘要： A compound superconducting wire comprising a matrix of CuX alloy and a multiplicity of Z.sub.3 X filaments embedded in the matrix in a spaced relationship so as not to come into contact with each other wherein X is Sn or Ga and Z.sub.3 X is Nb.sub.3 Sn or V.sub.3 Ga. In a precursor, therefore, a multiplicity of filaments of a base metal material Z such as Nb are arranged in a Cu base metal metrix concentrically in layers around a center core of a base metal material X such as Sn, in which the spacing between any adjacent filaments arranged in a former boundary region of an .epsilon.-phase bronze layer having a certain radius from the center produced when the precursor is preheat-treated at a temperature of 300.degree. to 600.degree. C. is made larger than the spacing between any adjacent filaments arranged in the other matrix regions. Also disclosed is a precursor wire wherein a composite of a Cu base metal material and a base metal material X capable of forming an alloy with the Cu base metal material is used as a matrix without arranging a core of the base metal material X at the center, and a multiplicity of filaments of a base metal material Z are embedded in the composite in a spaced relationship.

摘要翻译： 一种复合超导线，其包含CuX合金基体和以相互间隔的关系嵌入基体中的多个Z3X细丝，以便彼此不接触，其中X是Sn或Ga，Z3X是Nb3Sn或V3Ga。 因此，在前体中，诸如Nb之类的贱金属材料Z的多根细丝围绕着诸如Sn之类的基体金属材料X（例如Sn）的中心芯以同心的方式排列在铜基金属晶体中， 布置在从300度到600度的温度下进行预热处理时产生的中心产生的具有一定半径的ε相青铜层的前边界区域中的相邻长丝的尺寸大于任何相邻 布置在其他矩阵区域中的细丝。 还公开了一种母体线，其中使用能够与Cu基底金属材料形成合金的Cu基底金属材料和贱金属材料X的复合物作为基体，而不将基体金属材料X的芯排列在中心 ，并且多个基体金属材料Z的长丝以间隔的关系嵌入复合材料中。