铋系2234高Tc超导材料掺铁的特性研究

Bi-2234 High-Tc Superconductor Adding Fe Properties Study

在高Ｔｃ超导体Ｂｉ＿１．６Ｐｂ＿０．４Ｓｒ＿２Ｃａ＿３Ｃｕ＿４（１－ｘ）Ｆｅ＿４ｘＯｙ中，我们发现由于Ｃｕ部分被Ｆｅ元素替代，其超导特性发生改变，样品的电阻——温度关系，交流磁化率——温度关系都与不同Ｆｅ含量有关。同时研究了得到铋系单相性好的超导材料的烧结工艺。

In high-Tc Bi_1.6Pb_0.4Sr_2Ca_3Cu_4(1-x)Fe_4xOy Superconductor,We have observedthe discrepancy in the superconducting properties by Cu partially substituted by Fe experiments.Wehave achieved temperature dependence of the resistivity R and a_c magnetic susceptibility for differentFe concentration x,Meanwhile,we have investigated sintering technology in order to obtain Bi-systemsuperconductor with better single-phase property.