| 摘要 |
PROBLEM TO BE SOLVED: To provide a Nb3 Sn superconducting wire which has a sufficient strength required for superconducting magnet, and is satisfactory in respect of working property, and manufacturable in industrial scale. SOLUTION: This Nb3 Sn superconducting wire contains a Nb3 Sn superconducting wire group, a stabilized copper part and a diffused barrier layer. It contains, in 10-35% by volume ratio, one kind or more of alloys selected from a group consisting of (b) Nb-based alloy (excluding Cu-Nb alloy), (2) V- based alloy (excluding Cu-V alloy), (3) Cu-Nb alloy having a Nb content of 15-70wt.%, and (4) Cu-V alloy having a V content of 15-70wt.%. |
