YBCO/聚丙烯腈杂化膜及其超导性研究

报告了一种简单制备不依赖于基底结构的柔性YBCO/聚丙烯腈（PAN）厚膜的新方法.研究结果发现，PAN含量从0增加到10wt%的过程中，全部YBCO/PAN样品的超导临界温度T_c在900—920 K区间，表现出较好的超导电性.而且当PAN含量为10wt%时，YBCO/PAN杂化膜即具有一定柔性，膜厚约35 μm，临界电流密度Jc=29×10⁴Acm^-2(1 T, 10 K)和J< 关键词： 超导电性 YBCO 聚丙烯腈（PAN） 杂化膜

Research on the YBCO/PAN hybridized film and its superconductivity

A new and simple method of preparing the flexible YBCO/Polyacrylonitrile (PAN) thick film which is not dependent on substrate structure is reported. It is found that, when the PAN content increases from zero to 10wt%, the superconducting critical temperature (T_c) of all the YBCO/PAN specimens lies in the 90.0——92.0 K interval, and the specimens show good superconductivity. Moreover, when the PAN content is up to 10wt%, the YBCO/PAN hybridized film shows a certain degree of flexibility. The thickness of the film is about 35μm, and the critical current density (J_c) of the film is 2.9×10~4 Acm~(-2) at (1 T,10 K) and 4.6 ×10~3Acm~(-2) at (1 T, 40 K). The YBCO/PAN hybridized film, prepared without being treated at high temperature, is hopeful for application in electronics field.