FeSeTe超导带材接头的制备及性能研究
Preparation and properties of FeSeTe superconducting strip joint
李乾波 1邹军涛 2刘华军 3马红军 4刘方 4郭亮4
作者信息
- 1. 西安理工大学,西安 710048;合肥国际超导应用中心,合肥 230088
- 2. 西安理工大学,西安 710048
- 3. 中国科学院等离子体物理研究所,合肥 230031;合肥国际超导应用中心,合肥 230088
- 4. 中国科学院等离子体物理研究所,合肥 230031
- 折叠
摘要
目前,由于制作工艺的限制,FeSeTe涂层导体的最大长度普遍处于米级,不能满足实际应用需求,针对FeSeTe带材接头技术的研究具有重要意义.本文一方面以载流性能及电阻为双目标优化搭接接头结构,另一方面以接头电阻为标准优化FeSeTe涂层导体的封装方式.结果显示:焊接接头处存在Cu缓冲层能有效避免超导电性的衰减;利用镀铜封装的FeSeTe涂层导体制备搭接接头能有效降低磁场下的接头电阻.
Abstract
At present,due to the limitation of production process,the maximum length of FeSeTe coated conductor is gener-ally in the meter level,which can not meet the practical application requirements.The research on FeSeTe strip joint technology is of great significance.In this paper,on the one hand,the structure of the lap joint was optimized with the current carrying per-formance and resistance as the double objectives,and on the other hand,the packaging method of the FeSeTe coated conductor was optimized with the joint resistance as the standard.The results show that the presence of Cu buffer layer at the welded joint can effectively avoid the attenuation of superconductivity.Preparation of lap joints using FeSeTe coated conductors encapsulated with copper plating can effectively reduce joint resistance under magnetic fields.
关键词
FeSeTe/搭接接头/焊接/镀铜Key words
FeSeTe/Lap joint/Weld/Copper plating引用本文复制引用
基金项目
国家重点研发计划(2018YFA0704303)
中国科学院合肥研究院院长基金(YZJJ2022QN15)
出版年
2024
NETL
NSTL
万方数据