High critical current density in powder-in-tube processed MgB2/Ta/Cu wire

被引：0

作者：

Feng, Y ^{[1
]}

Zhao, Y

Dradhan, AK

Zhou, L

Liu, XH

Ji, P

Zhang, PX

Sun, YP

机构：

[1] NW Inst Nonferrous Met Res, Xian 710016, Peoples R China

[2] Univ New S Wales, Sch Sci & Engn, Sydney, NSW 2052, Australia

[3] Univ Virginia, Jesse W Beams Lab Phys, Charlottesville, VA 22903 USA

[4] Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2002年 / 47卷 / 03期

基金：

中国国家自然科学基金;

关键词：

MgB2; critical current density; powder-in-tube process;

D O I：

10.1360/02tb9060

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The magnetization of dense MgB2/Ta/Cu wires prepared by the powder-in-tube method is measured by a SQUID magnetometer. The results indicate that the critical temperature of MgB2/Ta/Cu is around 38.4 K with a sharp transition width of 0.6 K. The MgB2/Ta/Cu wire shows a strong flux pinning and the critical current density Is higher than 10(5) A/cm(2) (5 K, self-field) and 10(4) A/cm(2) (20 K, 1 T). Also, the irreversibility field of the sample reaches 6.6 T at 5 K.

引用

页码：251 / 252

页数：2

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