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本文报导单相和多相Y-Ba-Cu-O化合物超导体的制备工艺及其超导电性.X射线分析及电子显微镜观察表明,名义配比Y:Ba:Cu=1:2:3的样品为单相,其他配比成分的样品呈多相,但在一定配比范围内均呈现超导电性.它们的零电阻温度均在90K附近.
The preparation and superconductivity of single-phase and multi-phase Y-Ba-Cu-O compound superconductors are reported in this paper. X-ray and electron microscopy observations show that the samples with nominal ratio Y: Ba: Cu = 1: 2: 3 For the single phase, the samples of the other components were heterogeneous, but showed superconductivity within a certain range of ratio, and their zero resistance temperature was around 90K.