【摘要】 介绍了 Bi系银包套高温超导线材的电阻温度特性 ,用测电阻和电磁感应两种方法分别测量了材料的超导转变温度 ,电磁感应法测量曲线上台阶的出现表明材料中 Bi(2 2 2 3)和 Bi(2 2 12 )两相的存在。更多还原

【Abstract】 The temperature dependence of resistances for Ag-Bi tapes were investigated. The critical temperature for HTS Ag-Bi tapes were measured through two experimental ways: V-I characteristics and AC susceptibility measurements. The appearance of a step on susceptibility curves predicts that two phases of Bi(2223) and Bi(2212) would exist.更多还原