Fabrication of Y-Ba-Cu-O superconducting rods for current leads by unidirectional solidification

被引：8
|
作者：
Hayashi, A
Kurachi, K
Mizuno, M
Seiki, S
Izumi, T
Shiohara, Y
机构：
[1] Gifu Prefectural Inst Ceram Res & Technol, Gifu 5070811, Japan
[2] TYK Corp, Gifu 5078607, Japan
[3] ISTEC, Superconduct Res Lab, Koto Ku, Tokyo 1350062, Japan
来源：
PHYSICA C | 2001年 / 357卷
关键词：
unidirectional solidification; long length rods; YBCO/Ag/Pt;
D O I：
10.1016/S0921-4534(01)00376-8
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We fabricated long rod-shape current leads using a large cold isostatic press (CIP) apparatus for preparation of precursor rods and the zone melting method for unidirectional solidification. The pressed precursor rods with three different compositions Y1.6Ba2.3Cu3.3Ox, with/without Pt 0.3 mass% and with 10%Ag-0.3%Pt were prepared by the large CIP. We have succeeded in fabrication of long single domain rods of 170 mm in length in the case of Pt added rods. We fabricated Ag-added rods for improvement of mechanical strength and investigated the influence of the pulling rate upon the solidification behavior for long length rods. The rate of 2 mm/h was found to be suitable for achieving quasisteady state growth, which is necessary for fabricating long rod with keeping fine dispersion of Ag inclusion. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：669 / 672
页数：4
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