超导技术是21世纪极具经济和战略意义的一种高新技术,在许多高新领域都有比较广泛的应用前景,制作持续稳定的超导接头又是超导技术走向实用化必不可少的一项关键技术。介绍了几种常用的超导接头结构类型,重点对目前主要的4类超导体(低温超导体,REBCO,BSCCO,MgB_2)接头制备工艺和性能表征方面取得的进展进行了回顾。并对超导接头的发展趋势进行了展望,为以后超导接头的制备提供了参考。
Superconducting technology is a kind of high technology which has great economic and strategic significance in 21~(st) Century,it has a wide range of applications in many high-tech fields. Persistent superconducting joint is a key technology in the practical application of superconducting materials. This paper introduces several kinds of conmmonly used structure of persistent current joints,and provides a review of progress on the fabrication and characterization of joints for four major superconductors—low temperature superconductor,REBCO,BSCCO and MgB_2. The trend of preparation of superconducting joints is also discussed,which provides a help for the fabrication of superconducting joints.