Fabrication of joint Bi-2223/Ag superconducting tapes with BSCCO superconducting powders by diffusion bonding

被引:11
作者
Wei Guo [1 ,2 ,3 ]
Zou Guisheng [2 ,3 ]
Wu Aiping [2 ,3 ]
Zhou Fangbing [2 ,3 ]
Ren Jialie [2 ,3 ]
机构
[1] Beihang Univ, Sch Mech Engn & Automat, Beijing 100191, Peoples R China
[2] Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
[3] Minist Educ PR China, Key Lab Adv Mfg Mat Proc Technol, Beijing 100084, Peoples R China
来源
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2010年 / 470卷 / 9-10期
基金
中国国家自然科学基金; 中国博士后科学基金;
关键词
BSCCO tapes; Diffusion bonding; Critical current; Superconducting powder; CABLE; PB;
D O I
10.1016/j.physc.2010.03.007
中图分类号
O59 [应用物理学];
学科分类号
摘要
61-Filaments Bi-2223/Ag superconducting tapes have been successfully joined with BSCCO superconducting powder interlayer by diffusion bonding. The electrical properties of the diffusion bonding joints were tested by standard four probe method and the microstructures of the joints were also examined by SEM. Additionally, the phase constituents of the superconducting powders between the tapes before and after bonding process were evaluated by XRD analysis. The result shows that the diffusion bonding joints are superconductive. The microstructures of the joint display a good bonding with no cracks and discontinuities. The joining zones are mainly composed of Bi-2223 phase, Bi-2212 phase and a small amount of CuO, Ca2PbO4. At last, the phase transformations of the superconducting powders in the bonding process are discussed. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:440 / 443
页数:4
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