The Effect of Post Annealing in Reduced Oxygen Atmosphere on Critical Current Density of (Bi, Pb)2Sr2Ca2Cu3Oy Long Bulks

被引：0
作者：
X. Fu
M. Yavuz
机构：
[1] University of Waterloo,Mechanical Engineering Department
来源：
Journal of Superconductivity | 2005年 / 18卷
关键词：
Bi-Pb-Sr-Ca-Cu-O; long leads; critical current density; sinter forging;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Sinter forging has been employed to improve critical current density of Bi-2223 bulks. After that, optimal post annealing is also very important to get good performance. Different annealing schedules have been used to produce Bi-2223 sinter-forged bulks in different atmospheres. In this paper, Bi-2223 long bulks were prepared by a combination of cold isostatic pressing (CIP) and sinter-forging techniques. The samples were undergone deformation rates from 50 to 90% totally. The effect of post annealing in atmosphere of 7.5% O2/N2 on critical current density Jc for such (Bi, Pb)2Sr2Ca2Cu3Oy long bulks was investigated. Their microstructure features and phase changes were also studied.
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页码：277 / 280
页数：3
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