Study on High Residual Resistance Ratio (RRR) of Wire in Channel Superconductor Wire

Qiang Guo,Kaijuan Yan,Xiang Liu,Jianwei Liu,Jianfeng Li,Xianghong Liu,Yong Feng,Pingxiang Zhang

IEEE Transactions on Applied Superconductivity（2019）

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摘要

This paper studies the process and technology to obtain high Residual Resistance Ratio (RRR) of Wire in Channel (WIC) NbTi/Cu superconducting wires through three methods. The first method is online annealing on medium frequency furnace using NbTi/Cu wire and C10100 copper channel wire in hard state before soldering. The second method uses C10100 copper channel wire to anneal in the vacuum furnace,...

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关键词

Wires,Copper,Superconducting filaments and wires,Soldering,Annealing,Temperature measurement,Heating systems

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