铁磁材料作用于Bi-2223带材临界电流的研究  

Research on effect of ferromagnetic material on the critical current of Bi-2223 tape

作　　者：李美[1] 吴益飞[1] 杨爱军[1] 吴翊[1] 王小华[1] 

机构地区：[1]西安交通大学电气工程学院,西安710049

出　　处：《低温与超导》2010年第4期35-38,共4页Cryogenics and Superconductivity

摘　　要：主要研究了铁磁材料对Bi-2223带材的临界电流的影响。通过计算铁磁材料在不同布局下对带材磁场分布的影响,进行了相应的临界电流测试实验。分析表明,将铁磁材料垂直放在带材边缘能有效地提高带材的临界电流。In this paper we mainly focused on the effect of a ferromagnetic material on the critical current of Bi - 2223 tape. The magnetic field distributions of tapes with several different layouts of a ferromagnetic material were investigated by calculation and the corresponding critical current was tested experimentally. The analysis indicates that the critical current of the tape can be improved effectively by laying the ferromagnetic material perpendicularly next to the tape edge.

关 键 词：BI-2223带材 临界电流 铁磁 

分 类 号：TM26[一般工业技术—材料科学与工程]