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    Aluminum stabilized superconductor
    4.
    发明公开
    Aluminum stabilized superconductor 失效
    Aluminiumstabilisierter Supraleiter

    公开(公告)号：EP0874407A1

    公开(公告)日：1998-10-28

    申请号：EP98303108.9

    申请日：1998-04-22

    申请人： HITACHI CABLE, LTD. ,  Sumitomo Chemical Company, Limited

    发明人： Hosono, Fumikazu ,  Tatsumi, Noriyuki ,  Kikuchi, Kenichi ,  Iwaki, Genzo ,  Moriai, Hidezumi ,  Yasuda, Hitoshi ,  Takahashi, Akihiko

    IPC分类号： H01L39/14

    CPC分类号： H01L39/14 ,  H01F2027/2819 ,  Y10S505/704 ,  Y10S505/887

    摘要： A tube made of oxygen free copper is filled with a plurality of copper matrix Nb-Ti superconducting lead wires to obtain a composite billet, the resulting billet is subjected to hydrostatic pressure extrusion, and further, ageing heat treatment and wire drawing process are repeated for the composite material three times to prepare a Cu/Nb-Ti superconducting single wire. Then, the resulting Cu/Nb-Ti superconducting single wires are stranded each other to produce a superconducting strand. The superconducting strand is coated with an aluminum alloy to which either a content of 20 to 100 ppm of Cu and Mg or Mg, or a content of 10 to 120 ppm of Si and Cu is added by means of hot extrusion, the strand thus extruded is reduced by 0 to 20% in accordance with cold working to produce an aluminum stabilized superconductor. As a result, such aluminum stabilized superconductor having high mechanical strength as well as good thermal and electrical stability is provided while achieving light weight and downsizing thereof.

    摘要翻译： 由无氧铜制成的管填充有多个铜基Nb-Ti超导引线，得到复合坯料，对所得到的坯料进行静水压挤压，再进行老化热处理和拉丝工序， 复合材料三次制备Cu / Nb-Ti超导单丝。 然后，所得到的Cu / Nb-Ti超导单线彼此绞合以产生超导绞合线。 超导线材用铝合金涂覆，其中通过热挤压加入含量为20至100ppm的Cu和Mg或Mg，或含量为10至120ppm的Si和Cu，因此挤出的股线 根据冷加工减少0至20％以产生铝稳定超导体。 结果，提供了具有高机械强度以及良好的热和电稳定性的这种铝稳定超导体，同时实现了轻量化和小型化。