扭转下高温超导带材临界电流特性研究  

Critical current of HTS tape under different twist angle

作　　者：张敬伟[1] 唐跃进[1] 邓序之 任丽[1] 王作帅[1] 龚羽赫 苏路顺[1] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,超导中心,武汉430074

出　　处：《低温与超导》2015年第5期49-52,共4页Cryogenics and Superconductivity

摘　　要：研究了两种不同扭转方式(单向扭转和反复扭转)下高温超导一代铋锶钙铜氧(BSCCO)和二代钇钡铜氧(YBCO)带材临界电流的变化特性。用四线法在液氮、自场环境下测量了带材临界电流随单位厘米扭转角度(即扭转角度与扭转长度之比)的衰减特性和恢复特性,对两种带材在这两种不同的扭转情形下呈现出的变化规律分别进行了总结和比较。The characteristics of critical current of BSCCO and YBCO tapes were studied under two different torsional ways. The critical current degradation and recovery characteristics of BSCCO and YBCO tapes were measured with four - wire method in liquid nitrogen. In this paper, summaries and comparisons were discussed on critical current degradation and recovery characteristics between two torsional ways and two types of tapes.

关 键 词：高温超导带材 扭转角度 临界电流 电流衰减 恢复特性 BSCCO/YBCO 

分 类 号：TM26[一般工业技术—材料科学与工程]