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    Method for producing Nb.sub.3 Sn superconductor
    1.
    发明授权
    Method for producing Nb.sub.3 Sn superconductor 失效
    制造Nb3Sn超导体的方法

    公开(公告)号：US4224087A

    公开(公告)日：1980-09-23

    申请号：US16273

    申请日：1979-02-28

    Applicant: Kyoji Tachikawa ,  Hisashi Sekine

    Inventor： Kyoji Tachikawa ,  Hisashi Sekine

    IPC: C22F1/00 ,  H01B12/10 ,  H01B13/00 ,  H01L39/24 ,  H01L39/00 ,  C21D9/52 ,  C22C27/02

    CPC classification number: H01L39/2409 ,  Y10S420/901 ,  Y10S505/814 ,  Y10S505/815 ,  Y10S505/912 ,  Y10S505/921 ,  Y10T29/49014

    Abstract: In a method for producing Nb.sub.3 Sn superconductors which comprises forming a composite consisting of a core portion and a sheath portion surrounding said core portion, said sheath portion being composed of a Cu-Sn alloy, and said core portion being composed of a Nb metal; elongating said composite; and heat-treating the resulting elongated composite to form an Nb.sub.3 Sn layer between said sheath and core portions; the improvement wherein the Cu-Sn alloy contains 1 to 20 atomic percent of Sn and the Nb metal is an Nb alloy containing 0.1 to 30 atomic percent of Hf.

    Abstract translation: 在制造Nb 3 Sn超导体的方法中，包括形成由芯部和围绕所述芯部的鞘部组成的复合体，所述护套部由Cu-Sn合金构成，所述芯部由Nb金属构成; 伸长所述复合材料; 并对所得细长复合材料进行热处理，以在所述护套和芯部之间形成Nb 3 Sn层; Cu-Sn合金含有1〜20原子％的Sn，Nb金属为含有0.1〜30原子％的Hf的Nb合金的改进。

    High purity aluminum conductor used at ultra low temperature
    5.
    发明授权
    High purity aluminum conductor used at ultra low temperature 失效
    高纯度铝导体在超低温下使用

    公开(公告)号：US5573861A

    公开(公告)日：1996-11-12

    申请号：US88032

    申请日：1993-07-06

    Applicant: Akihiko Takahashi ,  Hitoshi Yasuda ,  Karl T. Hartwig ,  Lacy C. McDonald ,  Hong Zou

    Inventor： Akihiko Takahashi ,  Hitoshi Yasuda ,  Karl T. Hartwig ,  Lacy C. McDonald ,  Hong Zou

    IPC: C22B21/00 ,  C22C21/00 ,  C22F1/04 ,  C30B11/00 ,  C30B15/00 ,  H01B1/02 ,  B32B7/02 ,  B32B15/01

    CPC classification number: H01B1/023 ,  C22F1/04 ,  C30B11/00 ,  C30B15/00 ,  C30B29/02 ,  Y10S428/93 ,  Y10S505/814 ,  Y10T428/12743

    Abstract: The aluminum conductor having increase of its electric resistivity kept small at ultra low temperature of 30.degree. K. or lower even after cyclic strain is given at ultra low temperature, by controlling the crystal structure of the high purity aluminum conductor with purity of 99.9-99.9999 wt %. The crystal structure consist of (i) a veritable single or a substantially single crystal consisting of a bundle of sub-grains which have their crystal axes in the same direction or in the directions within a couple of degrees of deviation as a whole which has a specific crystal axis of or or the crystal axes close thereto in the longitudinal direction of the aluminum conductor, or (ii) a polycrystal most of which grains have respective specific crystal axes of and/or , or the crystal axes close thereto with respect to each grain in the longitudinal direction of the aluminum conductor, and have specific grain size of 0.01 mm to 3.0 mm.

    Abstract translation: 即使在超低温循环应变后，通过控制纯度为99.9-99.9999的高纯度铝导体的晶体结构，其电阻率增加的铝导体也保持在30℃以下的超低温下的低温。 重量％。 晶体结构由（i）由一个子晶粒组成的真实的单个或基本上单一的晶体组成，它们的晶轴在整个偏离的相同方向上或沿相反方向偏离的方向上具有 （111）或<100>的特定晶轴或在铝导体的纵向方向上靠近其的晶轴，或（ii）其中大多数晶粒具有各自的特定晶轴<111>和/或<100的多晶体 >或相对于铝导体的纵向方向上的每个晶粒接近的晶轴，并且具有0.01mm至3.0mm的特定晶粒尺寸。

    Superconductor and process of manufacture
    6.
    发明授权
    Superconductor and process of manufacture 失效
    超导体和制造工艺

    公开(公告)号：US5160550A

    公开(公告)日：1992-11-03

    申请号：US560163

    申请日：1990-07-31

    Applicant: James Wong ,  Mark K. Rudziak

    Inventor： James Wong ,  Mark K. Rudziak

    IPC: B21C23/22 ,  B21C37/04 ,  C22F1/18 ,  H01J7/18 ,  H01L39/24

    CPC classification number: H01L39/2406 ,  B21C23/22 ,  B21C33/002 ,  B21C37/042 ,  B21C37/045 ,  C22F1/18 ,  C22F1/183 ,  C22F1/186 ,  H01J7/183 ,  Y10S428/93 ,  Y10S505/814 ,  Y10S505/918 ,  Y10S505/921 ,  Y10T29/49014 ,  Y10T428/12812

    Abstract: A method for producing a superconductor includes the steps of combining a plurality of metal bodies to form a composite structure, metal bodies being selected from transition metals such as niobium, tantalum, titanium, zirconium, hafnium and vanadium, alternate bodies being formed of different transition metals to form triplets. The transition metals are reacted to form a ductile superconducting ternary alloy at the interfaces of these triplets of metals. The extent of the reaction is limited so as to maintain areas of pure or nearly pure transition metal along with the superconducting ternary alloy in at least one of each triplet of transition metals.

    Abstract translation: 制造超导体的方法包括以下步骤：将多个金属体组合以形成复合结构，金属体选自铌，钽，钛，锆，铪和钒等过渡金属，由不同转变形成的交替体 金属形成三联体。 过渡金属在金属三元体的界面处反应形成延性超导三元合金。 反应的程度受到限制，以便在过渡金属的每个三元组中的至少一个中保持纯或近纯过渡金属与超导三元合金的区域。

    Nb-Sn compound superconducting wire precursor, method for producing the same and method for producing Nb-Sn compound superconducting wire
    9.
    发明授权
    Nb-Sn compound superconducting wire precursor, method for producing the same and method for producing Nb-Sn compound superconducting wire 失效
    Nb-Sn复合超导线前体，其制造方法和Nb-Sn复合超导线的制造方法

    公开(公告)号：US06251529B1

    公开(公告)日：2001-06-26

    申请号：US09141561

    申请日：1998-08-28

    Applicant: Yoshio Kubo

    Inventor： Yoshio Kubo

    IPC: B32B1500

    CPC classification number: B32B15/01 ,  H01L39/2409 ,  Y10S428/93 ,  Y10S505/813 ,  Y10S505/814 ,  Y10S505/815 ,  Y10S505/919 ,  Y10T428/12486 ,  Y10T428/12521 ,  Y10T428/12715 ,  Y10T428/12806 ,  Y10T428/12819 ,  Y10T428/12903

    Abstract: An Nb—Sn compound superconducting wire precursor comprising a matrix of a Cu-base metal, a plurality of composite filaments each composed of a niobium layer of an Nb-base metal and a titanium layer of pure Ti formed so as to be enveloped in the inside of the niobium layer, and Sn diffused in the matrix by heat treatment so as to be combined with the niobium layer to form a compound, the plurality of composite filaments being embedded in the matrix so as not to be in contact with one another. Further, disclosed is a method for producing the precursor comprising the steps of: forming a plurality of composite filament materials each composed of a niobium material of an Nb-base metal and a titanium material of pure Ti formed so as to be enveloped in the inside of the niobium material; forming a composite rod in which the plurality of composite filament materials are arranged in a matrix of a Cu-base metal so as not to be in contact with one another, the matrix containing Sn capable of being diffused by heat treatment so as to be combined with the niobium material to form a compound; and drawing the composite rod.

    Abstract translation: 一种Nb-Sn复合超导线前体，其包含Cu基金属基体，多个复合长丝，每个复合长丝由铌基金属的铌层和纯Ti的钛层组成，以便被包覆在 在铌层的内部，并且通过热处理将Sn扩散到基体中，以便与铌层组合以形成化合物，所述多个复合长丝嵌入基体中以不彼此接触。 此外，公开了一种制造前体的方法，包括以下步骤：形成多个复合长丝材料，每个复合长丝材料由Nb基金属的铌材料和纯Ti的钛材料构成，以便被包封在内部 的铌材料; 形成复合棒，其中多个复合长丝材料以铜基金属的基体排列成彼此不接触，所述基体含有能通过热处理扩散的Sn以便组合 与铌材料形成化合物; 并拉出复合棒。

    Method for making a high purity aluminum conductor used at ultra low temperature
    10.
    发明授权
    Method for making a high purity aluminum conductor used at ultra low temperature 失效
    制造在超低温下使用的高纯度铝导体的方法

    公开(公告)号：US5616191A

    公开(公告)日：1997-04-01

    申请号：US472490

    申请日：1995-06-07

    Applicant: Akihiko Takahashi ,  Hitoshi Yasuda ,  Karl T. Hartwig ,  Lacy C. McDonald ,  Hong Zou

    Inventor： Akihiko Takahashi ,  Hitoshi Yasuda ,  Karl T. Hartwig ,  Lacy C. McDonald ,  Hong Zou

    IPC: C22B21/00 ,  C22C21/00 ,  C22F1/04 ,  C30B11/00 ,  C30B15/00 ,  H01B1/02 ,  C21D8/06 ,  C21D8/12

    CPC classification number: H01B1/023 ,  C22F1/04 ,  C30B11/00 ,  C30B15/00 ,  C30B29/02 ,  Y10S428/93 ,  Y10S505/814 ,  Y10T428/12743

    Abstract: The aluminum conductor having increase of its electric resistivity kept small at ultra low temperature of 30.degree. K. or lower even after cyclic strain is given at ultra low temperature, by controlling the crystal structure of the high purity aluminum conductor with purity of 99.9-99.9999 wt % so as to consist of (i) a veritable single or a substantially single crystal consisting of a bundle of sub-grains which have their crystal axes in the same direction or in the directions within a couple of degrees of deviation as a whole which has a specific crystal axis of or or the crystal axes close thereto in the longitudinal direction of the aluminum conductor, or (ii) a polycrystal most of which grains have respective specific crystal axes of and/or , or the crystal axes close thereto with respect to each grain in the longitudinal direction of the aluminum conductor, and have specific grain size of 0.01 mm to 3.0 mm.

    Abstract translation: 即使在超低温循环应变后，通过控制纯度为99.9-99.9999的高纯度铝导体的晶体结构，其电阻率增加的铝导体也保持在30℃以下的超低温下的低温。 （i）由一组亚晶粒组成的可辨别的单个或基本上单一的晶体，所述亚晶粒子团的晶体轴线在整个偏差的相同方向或两个方向上具有相同的方向 具有<111>或<100>的特定晶轴或在铝导体的纵向方向上靠近其的晶轴，或（ii）其中大多数晶粒具有各自的特定晶轴<111>和/或 或相对于铝导体的纵向方向上的每个晶粒接近的晶轴，并且具有0.01mm至3.0mm的特定晶粒尺寸。

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