电镀铜对YBCO超导带材临界电流影响的研究  

Study on the influence of copper electroplating on the critical current of YBCO superconducting tapes

作　　者：李继春 叶新羽 夏芳敏 张立永 王醒东 Li Jichun;Ye Xinyu;Xia Fangmin;Zhang Liyong;Wang Xingdong(Futong Group (Tianjin) Superconductor Technologies and Applications Co. Ltd.,Tianjin 300384, China)

机构地区：[1]富通集团(天津)超导技术应用有限公司,天津300384

出　　处：《低温与超导》2019年第4期40-43,共4页Cryogenics and Superconductivity

基　　金：天津市科技支撑计划项目(14ZCZDGX00067)资助

摘　　要：钇系超导带材(YBCO)由于载流能力强、不可逆场高,是近年来高温超导材料领域的研究热点,并在电力行业实现示范应用。YBCO超导带材由基底、缓冲层、超导层和保护层组成,可通过电镀铜工艺实现保护层的制备。目前,有关电镀铜对YBCO超导带材临界电流的影响还鲜有报道。因此,本研究对比了镀铜前后YBCO超导带材的表面形貌和临界电流。实验结果表明:电镀铜在提高带材机械强度的同时,对其超导电性并无明显影响。Due to the high current-carrying capacity and high irreversible field, high temperature superconductor ( HTS) YBCO tapes have attracted much attention as the conductors of power cables. Usually, YBCO HTS tapes consist of the substrate, buffer layers, superconducting layers and protective layers, and the protective metal layers for HTS tapes can be prepared by electroplating. However, few studies about the effect of copper electroplating on the critical current Ic of YBCO tapes have been reported. Therefore, the surface morphology and critical current of YBCO tapes before and after copper electroplating were investigated in this work. The results show that copper electroplating can improve the tensile strength of the YBCO tapes without obvious effect on the superconducting property.

关 键 词：电镀铜 钇钡铜氧 超导带材 临界电流 

分 类 号：TN86[电子电信—信息与通信工程]