发明名称 |
Nb-Al TYPE SUPERCONDUCTING WIRE HAVING STABILIZING COPPER DEPOSIT TENACIOUSLY ADHERENT THERETO AND PROCESS FOR PRODUCING THE SAME |
摘要 |
<p>An Nb-Al type superconducting wire which is in a state before transformation to an Nb<SUB>3</SUB>Al compound. It comprises an Nb-Al type wire in the state of a supersaturated solid solution, a nickel coating film as an interlayer, and a copper coating film tenaciously formed as a stabilizing material on the peripheral surface of the wire through the interlayer. It can be produced from an Nb-Al type wire in the state of a supersaturated solid solution obtained through cooling in liquid gallium, via the following steps: (a) a step in which a gallium residue adherent to the surface of the Nb-Al type wire is removed; (b) a step in which the Nb-Al type wire from which the gallium residue on the surface has been removed in the step (a) is degreased under such conditions as not to passivate the Nb-Al type wire and is then pickled; (c) a step in which the surface of the Nb-Al type wire pickled in the step (b) is electroplated with nickel in a nickel strike bath; and (d) a step in which the surface of the Nb-Al type wire electroplated with nickel in the step (c) is electroplated with copper. From this Nb-Al type superconducting wire, an Nb<SUB>3</SUB>Al compound type superconducting wire can be industrially advantageously produced which is useful in a magnet for nuclear fusion reactors, magnet for accelerators, and magnet for nuclear magnetic resonance (NMR) apparatuses having high resolution.</p> |
申请公布号 |
WO2006129540(A1) |
申请公布日期 |
2006.12.07 |
申请号 |
WO2006JP310386 |
申请日期 |
2006.05.24 |
申请人 |
HIGH ENERGY ACCELERATOR RESEARCH ORGANIZATION;NATIONAL INSTITUTE FOR MATERIALS SCIENCE;NOMURA PLATING CO., LTD.;TSUCHIYA, KIYOSUMI;TAKEUCHI, TAKAO;IKEDA, TOKUMI;HIGUCHI, TAMAO |
发明人 |
TSUCHIYA, KIYOSUMI;TAKEUCHI, TAKAO;IKEDA, TOKUMI;HIGUCHI, TAMAO |
分类号 |
H01B13/00;C25D3/12;C25D5/50;C25D7/06;C25F1/00;C25F1/08;H01B12/10 |
主分类号 |
H01B13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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