EQUILIBRIUM PHASE-DIAGRAMS FOR THE SYSTEMS PBO-SRO-CUO AND PBO-CAO-SRO

被引:37
作者
KITAGUCHI, H
TAKADA, J
ODA, K
MIURA, Y
机构
[1] Department of Applied Chemistry, Faculty of Engineering, Okayama University
关键词
D O I
10.1557/JMR.1990.1397
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In order to obtain essential information on the formation process of the high-Tc phase in the Bi, Pb-Sr-Ca-Cu-O system, subsolidus phase equilibrium in the systems PbO(PbO2)-SrO-CuO and PbO(PbO2)-CaO-SrO has been studied, mainly by XRD analysis. A pseudoternary Pb-Sr-Cu-O solid solution was newly found. This solid solution has a wide solubility range including its typical composition Pb2.03Sr3Cu0.73O7.70. It has a hexagonal structure with lattice parameters a = 10.11 and c = 7.11 in AU. Composition dependences of the lattice parameters and the decomposition (incongruent melting) temperature of (Ca1_xSrx)2PbO4solid solution are also reported. © 1990, Materials Research Society. All rights reserved.
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页码:1397 / 1402
页数:6
相关论文
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