HEAVILY COLD-WORKED HIGH-PURITY TA AS A REINFORCING STABILIZER

被引：12

作者：

MATSUKAWA, M

NOTO, K

KATAGIRI, K

MATSUURA, N

IKEBE, M

TAKAHASHI, C

FUKUTSUKA, T

WATANABE, K

机构：

[1] TOHOKU ELECT POWER CO LTD,SENDAI 980,JAPAN

[2] KOBE STEEL LTD,KOBE 651,JAPAN

[3] TOHOKU UNIV,INST MAT RES,SENDAI,MIYAGI 980,JAPAN

来源：

IEEE TRANSACTIONS ON MAGNETICS | 1992年 / 28卷 / 01期

关键词：

D O I：

10.1109/20.120019

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：

Mechanical and electrical properties have been studied for a heavily cold worked high-purity Ta wire. Tensile test at room temperature shows a large 0.2% proof stress of about 70 kg/mm2, which is probably caused by work-hardening in the wire drawing process. Our observations of fracture surfaces using a scanning electron microscope indicate that this material is very ductile. Moreover, this sample has a low resistivity of about 0.4-mu OMEGA cm even at the high field of 15 T. The residual resistivity ratio is about 80, which is consistent with high purity of the sample. Therefore, it has been found that the cold-worked Ta wire is applicable to a reinforcing stabilizer for conductors of large scale and/or high-field superconducting magnets.

引用

页码：880 / 883

页数：4