High-Tc superconducting current leads

被引：1

作者：

Yau, JKF ^{[1
]}

Savvides, N

Sorrell, CC

机构：

[1] Chinese Univ Hong Kong, Dept Phys, Hong Kong, Peoples R China

[2] CSIRO, W Lindfield, NSW 2070, Australia

[3] Univ New S Wales, Sch Mat Sci & Engn, Sydney, NSW 2052, Australia

来源：

PHYSICA C | 1998年 / 307卷 / 1-2期

关键词：

current leads; fabrication; critical current; uniformity; field dependence;

D O I：

10.1016/S0921-4534(98)00397-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Metal-sheathed high-T-c superconducting current leads of J(c) = 1.6-1.8 x 10(4) A cm(-2) at 77 K under self-field condition were fabricated using a modified short tape processing technique. It was found that section-wise uniaxial pressing can be used to provide the necessary intermediate mechanical deformation between heat treatments of long silver-sheathed (Bi,Pb)(2)Sr2Ca2Cu3O10+x superconductor. The overlapping of pressing up to 400 MPa does not impose non-uniformity of transport J(c) to the final product. By stacking of single-core tapes, multi-layer current leads can be made. The I-c of this multi-layer current lead is additive, as in normal current in parallel-connected circuits. There is a lateral variation of J(c) in the superconducting core of these leads. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：23 / 28

页数：6

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