以YBa2Cu3O7-x(YBCO)超导涂层为导体的第二代高温超导带材由于其优异的本征性能,吸引着人们不断探索和研究其实用成材技术.现在,近千米长带的研制成功,使其已经或即将应用于电缆、马达和其他电力器件.为了更好地使YBCO涂层导体能够在高温高磁场下应用.最近在YBCO中引入钉扎中心以提高它的电磁性能的研究是一个热点.综述了近年来二代超导带材的发展状况,并对目前高温超导体中提高电学性能的研究做了较为系统的介绍.
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