1. SUBSOLIDUS PHASE RELATIONSHIPS AND SUPERCONDUCTIVITY IN <font>Gd2O3-BaO-CuO</font> SYSTEM
- Author
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Xianting Xu, Xiuyu Shao, G.H. Rao, Zhanguo Duan, Sishen Xie, and J.K. Liang
- Subjects
Superconductivity ,Diffraction ,Materials science ,Phase (matter) ,Diagram ,Sintering ,Thermodynamics ,Statistical and Nonlinear Physics ,Condensed Matter Physics ,Ternary operation ,Phase diagram - Abstract
The 960°C subsolidus phase relationships in the Gd2O3-BaO-CuO system were determined by means of X-ray diffraction as well as superconductive properties measurements. In the measured partial diagram, two ternary compounds occur: GdBa2Cu3O9−y and Gd2BaCuO5 The relationships between composition and superconductivity were also reported in this paper. Since superconductivity in Ba-Y-Cu-O system was reported(1, 2), many authors have measured the phase diagram for this system (3, 4). In a recent communication we reported superconductivity existing in Ba-Gd-Cu-O system(5). Now we present the results of partial subsolidus phase relationships sintered at 960°C in air, which in turn provide a basis for the sample preparetion technology. We also discussed the effect of compositions on the sintering temperature in this paper.
- Published
- 1987