摘要
采用ＰＩＴ方法制备银套带Ｂｉ（２２２３）多芯超导带。研究了带材的临界电流（Ｉｃ）和原始粉料、带材形变加工过程以及热处理工艺参数等关系。发现带材在２次热处理中间的加压形变过程对其超导性能有显著影响。采用逼近熔点热处理工艺，得到的多芯Ｂｉ（２２２３）／Ａｇ超导带的临界电流密度Ｊｃ（７７Ｋ，０Ｔ）＞１×１０４Ａ／ｃｍ２。
A Ag tube type multicore Bi(2223)/Ag superconducting tape was manufactured by PIT. The authors investigate the relationship of critical current ( I c) with marworking of primary powder material, tape material and thermal treatment parameters. It was found that the pressure deformation between 2 thermal treatment processes had dramatic effect on its superconductivity. The multicore Bi(2223)/Ag superconducting tape manufactured by using the approximating melting point thermal treatment technique had a critical current density, J c (77K, 0T) of above 1×10 4 A/cm 2。
出处
《矿冶工程》
EI
CAS
CSCD
北大核心
1999年第1期70-72,共3页
Mining and Metallurgical Engineering
基金
国家超导中心资助项目
关键词
多芯
超导带
临界电流
PIT方法
制备工艺
Multicore, Bi(2223)/Ag, Superconducting tape, Critical current, PIT process
