发明名称 |
Aluminum stabilized superconductor with Cu and Mg |
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. 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.
|
申请公布号 |
US6255596(B1) |
申请公布日期 |
2001.07.03 |
申请号 |
US19980064836 |
申请日期 |
1998.04.23 |
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 |
分类号 |
H01L39/14;(IPC1-7):H01B12/00 |
主分类号 |
H01L39/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|