[11p-N402-1~10] 11.3 Critical Current, Superconducting Power Applications

[11p-N402-9] Pd and Cd-free NbTi-Nb₃Sn superconducting joint by using metallurgical reaction and its transport current characteristic

〇Nobuya Banno¹, Kensuke Kobayashi¹, Akira Uchida¹, Hitoshi Kitaguchi¹ (1.NIMS)

Keywords:Pb free, Nb3Sn, Superconducting joint

We have developed an epoch-making method that has the potential to entirely replace the superconducting joint using Pb / Cd solder in NMR magnets, which has been performed for more than 30 years. This has been achieved by development of high temperature torelable Nb alloys and using of metallurgical chemical reactions. The presentation will show the process and transport current characteristics. It is expected to contribute to the realization of an environmentally friendly NMR system.