Review of overpressure processing Ag-sheathed (Bi, Pb)2Sr2Ca2Cu3Ox wire

被引：10
|
作者：
Hellstrom, EE
Yuan, Y
Jiang, J
Cai, XY
Larbalestier, DC
Huang, Y
机构：
[1] Univ Wisconsin, Ctr Appl Superconduct, Madison, WI 53706 USA
[2] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA
[3] Amer Supercond Corp, Westborough, MA 01581 USA
来源：
SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2005年 / 18卷 / 12期
关键词：
D O I：
10.1088/0953-2048/18/12/017
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This paper reviews overpressure (OP) processing of Ag-sheathed (Bi, Pb)(2)Sr2Ca2Cu3Ox (2223) flat wire. OP processing is a variant of hot isostatic pressing that densifies the 2223 filaments, which increases the critical current density J(c) of the wire. OP processing is done at pressures up to 300 bar with a mixed Ar/O-2 atmosphere in which the oxygen partial pressure is set so the 22,23 phase is stable. The Ar pressure compresses the wire. The highest reported J(c) in OP-processed short wires is 69.6 kA cm(-2) (self-field (SF), 77 K) and 30.8 kA cm(-2) (0.1 T, 77 K). I-c as high as 100 A has been achieved in 1.5 km lengths of OP wire.
引用
收藏
页码：S325 / S331
页数：7
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