THE TRANSVERSE STRESS EFFECT ON THE CRITICAL CURRENT OF JELLY-ROLL MULTIFILAMENTARY NB3AL WIRES

被引：16

作者：

ZERITIS, D

IWASA, Y

ANDO, T

TAKAHASHI, Y

NISHI, M

NAKAJIMA, H

SHIMAMOTO, S

机构：

[1] MIT,CTR PLASMA FUSION,CAMBRIDGE,MA 02139

[2] JAPAN ATOM ENERGY RES INST,NAKA FUSION RES CTR,NAKA,IBARAKI 31911,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1991年 / 27卷 / 02期

关键词：

D O I：

10.1109/20.133550

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：

Experiments were conducted to determine the effect of transverse compressive stress (TCS) on the critical current of jelly-roll multifilamentary Nb3A1 wire (0.8-mm dia.) for magnetic flux densities up to 12 T. For comparison, identical experiments were performed for bronze-process Ti-alloyed multifilamentary Nb3Sn wire (1.0-mm dia.). Although the unstressed critical current density of Nb3Al was inferior to that of (NbTi)3Sn at high fields, under applied TCS Nb3Al exhibited less critical current degradation than (NbTi)3Sn. For example, at 12 T and 150 MPa, TCS-induced critical current degradation was approximately 20% for Nb3Al, whereas it was approximately 65% for (NbTi)3Sn. There is optimism that Nb3Al will evolve into a useful superconductor for large-scale, high-field applications.

引用

页码：1829 / 1830

页数：2