多芯Bi(2223)/Ag超导带制备工艺的研究  

MANUFACTURING TECHNIQUE FOR MULTICORE Bi(2223)/Ag SUPERCONDUCTING TAPE

作　　者：林蔚[1,2] 邓华[1,2,1,2] 周贻茹[1,2] 华佩文 邓华 付彐奎 周其[1,2] 袁冠森 

机构地区：[1]北京有色金属研究总院 [2]长沙矿冶研究院

出　　处：《矿冶工程》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

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。

关 键 词：多芯 超导带 临界电流 PIT方法 制备工艺 

分 类 号：TM262.051[一般工业技术—材料科学与工程]