Study on minimum propagation current of Bi-2223/Ag superconducting multifilament tape

被引：0
|
作者：
Bai, Zhiming [1 ]
Wu, Chunli [2 ]
Yang, Hailiang [1 ]
Wang, Jinxing [1 ]
机构：
[1] Northeastern Univ, Dept Phys, Shenyang 110004, Peoples R China
[2] Northeastern Univ, Coll Informat Sci & Engn, Shenyang 110004, Liaoning, Peoples R China
来源：
2006 BIMW: 2006 BEIJING INTERNATIONAL MATERIALS WEEK, PTS 1-4: MAGNESIUM | 2007年 / 546-549卷
关键词：
Bi-2223/Ag superconducting multifilament tape; minimum propagation current; Quench propagation velocity; finite element method (FEM);
D O I：
10.4028/www.scientific.net/MSF.546-549.1985
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Minimum propagation current of Bi-2223/Ag superconducting multifilament tape was studied in detail, including experimental investigation and numerical calculation using finite element method (FEM). A set of experimental system has been established, quench propagation velocities with various transport current have been measured and minimum propagation current has been obtained in the condition of N-2 gas cooling. The effect of parallel background magnetic field on minimum propagation current has also been studied experimentally. In addition, minimum propagation current at different operating temperature has been gained by the simulated calculation using FEM. It has been found that the high temperature superconductor is stable if only transport current is smaller than minimum propagation current of the time no matter what condition it is in. Minimum propagation current can be considered as an important stability criterion of high temperature superconductor.
引用
收藏
页码：1985 / +
页数：2
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