Nb3Sn/Cu复合导体分流温度的定量计算  

Quantitative simulation on current-sharing temperature of Nb3Sn/Cu composite conductor

作　　者：崔英敏[1,2] 王银顺[1] 张贵银[2] 

机构地区：[1]华北电力大学,新能源电力系统国家重点实验室,北京市高电压与电磁兼容重点实验室,北京102206 [2]华北电力大学数理学院,保定071003

出　　处：《低温与超导》2013年第2期36-38,18,共4页Cryogenics and Superconductivity

摘　　要：铌三锡是高磁场下实用的一种低温超导材料,分流温度是超导磁体的关键设计参数。文中采用超导体幂指数模型,定量计算了绝热条件下柱状铌三锡复合导体的分流温度,计算结果与现有的分流温度估算公式结果相符;另外还分别讨论了幂指数模型的中的指数n以及磁场对铌三锡复合导体分流温度的影响。结果可以为无液氦直接冷却系统中超导磁体的相关低温技术研究提供一定的数据参考。Nb3Sn is a practical low-temperature superconducting material in the high magnetic field,and current-sharing temperature is the key design parameter for superconducting magnet.Based on the power-law model of superconductor,the current-sharing temperatures for Nb3Sn/Cu composite conductor was simulated,the result had agreement with the existing equation ones.Moreover,the effects of n-value in the power-law model and magnetic filed on current-sharing temperature were also discussed.This paper will provide reference for cryogenic refrigerating and cool conducting technology especially without liquid helium.

关 键 词：分流温度 复合超导体 超导磁体 

分 类 号：TG44[金属学及工艺—焊接]