Supercondcuting properties in MgB2/Fe wires prepared by PIT method

被引:1
|
作者
Yan, G [1 ]
Feng, Y
Fu, BQ
Liu, CF
Ji, P
Zhang, PX
Zhou, L
机构
[1] Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
[2] NW Inst Nonferrous Met Res, Superconducting Mat Res Ctr, Xian 710016, Peoples R China
来源
CHINESE SCIENCE BULLETIN | 2003年 / 48卷 / 13期
关键词
MgBa; wires; in-situ PIT; critical current density;
D O I
10.1360/02ww0261
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 MgB2 formation was analyzed physically and chemically and the MgB2/Fe wires were fabricated by powder in tube (PIT) technology. The microstructure of MgB2 in wires was studied by the scanning electrical microscope (SEM), which shows a good connection of grains and the size of MgB2 grain is 1-3 mum. The results of J(c) measured by the standard four probes method show that J(c) value reaches 6.1x10(4) A/cm(2) at 20 K in self field.
引用
收藏
页码:1331 / 1333
页数:3
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