Strain effects of high strength Nb3Sn wire reinforced by jelly-rolled Nb/Cu composite and modification of the reinforcement

被引:9
作者
Iwaki, G [1 ]
Sato, J
Katagiri, K
Watanabe, K
机构
[1] Hitachi Cable Ltd, Adv Res Ctr, Tsuchiura, Ibaraki 3000026, Japan
[2] Iwate Univ, Fac Engn, Morioka, Iwate 0208551, Japan
[3] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
关键词
high strength Nb3Sn wire; Nb/Cu jelly-rolled; composite reinforcement; uni-axial tensile strain dependence; bending strain tolerance;
D O I
10.1109/77.919851
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We are in the process of developing high strength Nb3Sn wires reinforced by unique Nb/Cu composites made in a jelly-rolling process to miniaturize high field magnets. A bronze-processed (Nb,Ti),Sn superconducting wire incorporating the composite with a high Nb volume fraction has been made. The wire has shown a high 0.2 % proof stress at 4.2 K of 350 MPa. The strain effects such as uni-axial strain dependence and bending strain tolerance on the critical current were examined this time. The influence of the Nb volume fraction in the jelly-rolled composite reinforcement was also investigated to improve the electrical conductivity of the reinforcement.
引用
收藏
页码:3631 / 3634
页数:4
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