77K下高温超导带材电磁各项异性多样性研究

Study on diversity of high-temperature superconductor tapes electromagnetic anisotropy at 77K

在高温超导装置的设计过程中,超导材料临界电流的电磁各向异性参数是关键基础数据,也是进行优化设计的依据。文中对国内外5家高温超导生产商的8款高温超导带材在77K下的电磁各项异性情况进行了测试,通过对比分析发现并总结了这些高温超导带材电磁各向异性的多样性。基于文中的研究结果,在高温超导磁体设计过程中需要对所选型号、所用批次的高温超导带材进行全面的电磁各项异性测试,以确保设计的可靠性。

Critical current （I＋） electromagnetic anisotropy parameters of high- temperature superconductor （HTS） tape are the most important basic data in the design process of HTS devices. They are the basis for optimum electromagnetic design of HTS devices. In this paper, electromagnetic anisotropy parameters of 8 types of HTS tapes produced by 5 companies were obtained through measurement. Employing contrast analysis of these parameters, diversities of the HTS tapes electromagnetic anisotropy were identified and classified. Based on results of this study, electromagnetic anisotropy parameters of the HTS tapes used should be fully measured to ensure design reliability of HTS device.