新型电力传输材料——REBaCuO高温超导涂层导体  

The new power transmission material—REBaCuO high-temperature superconducting coated conductor

作　　者：蔡传兵[1,2,3] 杨召 郭艳群 CAI Chuan-Bing;YANG Zhao;GUO Yan-Qun(Physics Department,Collage of Science,Shanghai University,Shanghai 200444,China;Shanghai Key Laboratory of High Temperature Superconductors,Shanghai 200444,China;Shanghai Creative Superconductor Technologies Co.Ltd.,Shanghai 201401,China)

机构地区：[1]上海大学理学院物理系,上海200444 [2]上海市高温超导重点实验室,上海200444 [3]上海上创超导科技有限公司,上海201401

出　　处：《物理》2020年第11期747-754,共8页Physics

基　　金：国家重点研发计划(批准号:2016YFF0101701);国家自然科学基金(批准号:51572165);中国科学院战略先导(批准号:XDB25000000)资助项目;项目(批准号:6140923050202)资助。

摘　　要：REBaCuO(简写为RE123,RE=Y,Gd等稀土元素)高温超导涂层导体也称第二代高温超导(2G-HTS)带材,通过柔性金属基带上的薄膜外延和双轴织构技术发展而来,解决了陶瓷性铜氧高温超导体的晶界弱连接和机械加工难等问题,是当前液氮温区运行下电磁性能较为优越的实用高温超导材料。文章首先对新型电力传输材料——高温超导涂层导体的各类技术路线和国内外发展现状进行概述;随后对低成本的化学溶液法2G-HTS长带的关键制备技术和当前进展进行介绍;最后针对强磁场和大电流应用背景,对REBaCuO涂层导体的磁传输各向异性、磁通钉扎及其人工调制等最新研究进展进行评述。REBaCuO(RE=Y,Gd and other rare earth elements)high-temperature superconducting coated conductors,also known as second-generation high-temperature superconducting(2G-HTS)tapes,have been produced based on the development of film epitaxy and biaxial texture growth on flexible metal substrates.This technology has solved the problems of weak-linking at grain boundaries and the difficulties of mechanical processing for such HTS ceramics,which are excellent practical high-temperature superconducting materials with superior electromagnetic performance at liquid nitrogen temperatures.This article first summarizes various methods of fabricating 2G-HTS tapes and their current status at home and abroad,then introduces the key processing technologies in the preparation of long tapes by using a low-cost chemical solution method.Finally,the latest research on magneto-transport anisotropy,flux pinning and their artificial modulation are reviewed with regard to the application of REBaCuO coated conductors under strong magnetic fields and high current.

关 键 词：高温超导体 RE123超导带材 化学溶液法 磁通钉扎 

分 类 号：TM26[一般工业技术—材料科学与工程]