Improvement of the phase formation and superconductivity of the (Bi,Pb)2Sr2Ca2Cu3Ox silver-sheathed tapes with B2O3 addition

被引：38
|
作者：
Jiang, LD
Sun, YP
Wan, XG
Wang, KY
Xu, GY
Chen, XH
Ruan, KQ
Du, JJ
机构：
[1] Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China
[2] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Peoples R China
[3] Univ Sci & Technol China, Low Temp Phys Lab, Hefei 230026, Peoples R China
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1998年 / 300卷 / 1-2期
关键词：
Bi2223/Ag tape; critical current density; B2O3; addition;
D O I：
10.1016/S0921-4534(98)00064-1
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In (Bi,Pb)(2)Sr2Ca2Cu3Ox silver-sheathed (Bi2223/Ag) tapes, melted liquid phase plays an important role to form the Bi2223 phase. We have added a small amount of B2O3 into Bi2223/Ag tapes to assist in inducing melted phase because B2O3 has a melting point (460 degrees C) much lower than the general sintering temperature of the tapes, and studied the influence of B2O3 doping on the microstructure and critical current density (J(c)) of Bi2223/Ag tapes. The results show that B2O3 doping is really effective to result in the faster growth and better alignment of the Bi2223 grains in the superconducting core and improve the magnetic field dependence of the J(c) value. (C) 1998 Elsevier Science B.V.
引用
收藏
页码：61 / 66
页数：6
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