CFETR TF高场导体的横向几何特征分析  

Analysis of transverse geometric characteristics of CFETR TF High field conductor

作　　者：刘云昊 戴超[2] 郭子川 杨东昇 武玉 Liu Yunhao;Dai Chao;Guo Zichuan;Yang Dongsheng;Wu Yu(Institute of Plasma Physics,CAS,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《低温与超导》2022年第1期7-10,40,共5页Cryogenics and Superconductivity

基　　金：国家重点研发计划(2017YFE0301404-07)资助。

摘　　要：聚变堆用超导磁体性能衰退与超导丝断裂有关,其宏观表现为股线发生横向位移。对一种高性能CICC导体进行极限电磁性能测试,观测到导体性能发生显著衰退。通过FiJi软件对不同磁场下导体进行横向几何特征分析。结果表明,随磁场增加,洛伦兹力使得股线从低压区向高压区迁移,局部空隙率发生变化,并且整体股线向洛伦兹力方向迁移。The performance degradation of superconducting magnets for fusion reactors is related to the fracture of superconducting filaments, and its macroscopic manifestation is the transverse displacement of the strands. A high-performance CICC conductor was tested for the ultimate electromagnetic performance, and a significant decline in conductor performance was observed. The lateral geometric characteristics of conductors under different magnetic fields were analyzed by FiJi software. The results show that with the increase of the magnetic field, the Lorentz force causes the strands to migrate from the low-pressure area to the high-pressure area, the local void ratio changes, and the overall strands migrate in the direction of the Lorentz force.

关 键 词：CFETR 超导线 空隙率 质心迁移 

分 类 号：TM249.7[一般工业技术—材料科学与工程]