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蔡传兵, 杨召, 郭艳群. 新型电力传输材料——REBaCuO高温超导涂层导体[J]. 物理, 2020, 49(11): 747-754. DOI: 10.7693/wl20201103
引用本文: 蔡传兵, 杨召, 郭艳群. 新型电力传输材料——REBaCuO高温超导涂层导体[J]. 物理, 2020, 49(11): 747-754. DOI: 10.7693/wl20201103
CAI Chuan-Bing, YANG Zhao, GUO Yan-Qun. The new power transmission material—REBaCuO high-temperature superconducting coated conductor[J]. PHYSICS, 2020, 49(11): 747-754. DOI: 10.7693/wl20201103
Citation: CAI Chuan-Bing, YANG Zhao, GUO Yan-Qun. The new power transmission material—REBaCuO high-temperature superconducting coated conductor[J]. PHYSICS, 2020, 49(11): 747-754. DOI: 10.7693/wl20201103

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

  • 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。

     

    Abstract: 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.

     

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