Superconducting joint of Y-Ba-Cu-O superconductors using Er-Ba-Cu-O solder

被引：33
|
作者：
Iida, K [1 ]
Yoshioka, J [1 ]
Sakai, N [1 ]
Murakami, M [1 ]
机构：
[1] Int Superconduct Technol Ctr, Superconduct Res Lab, Div 3, Morioka, Iwate 0200852, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 370卷 / 01期
关键词：
superconducting joint; Y-Ba-Cu-O; Er-Ba-Cu-O; welding; solder;
D O I：
10.1016/S0921-4534(01)01082-6
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Two melt-textured Y-Ba-Cu O superconductor blocks were successfully welded with Er-Ba-Cu-O solder having a lower peritectic temperature than that of Y-Ba-Cu-O. The key to a strongly coupled joint was a combination of the control of crystal growth along (1 1 0) direction and the employment of a highly dense sintered Er-Ba-Cu-O bar as a solder material. Microstructural analyses revealed that no segregation of secondary phase and/or residual liquid phase was observed at the joint interface. Furthermore, it was found through magneto-optical observations that magnetic field could not penetrate into the joint, indicating that the two superconductors were strongly connected with this method. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：53 / 58
页数：6
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