PHASE-DIAGRAM AND MICROSTRUCTURE IN THE SYSTEM CUO-PBO-AG

被引:4
作者
LIU, HK [1 ]
DOU, SX [1 ]
SHAO, ZB [1 ]
LIU, KR [1 ]
LIU, LQ [1 ]
机构
[1] NORTHEAST UNIV,DEPT CHEM,SHENYANG,PEOPLES R CHINA
来源
JOURNAL OF SUPERCONDUCTIVITY | 1994年 / 7卷 / 01期
关键词
PHASE DIAGRAM; COPPER OXIDE; LEAD OXIDE; SILVER AND SEM;
D O I
10.1007/BF00730371
中图分类号
O59 [应用物理学];
学科分类号
摘要
Phase equilibrium and microstructure in the ternary PbO-CuO-Ag system has been investigated using differential thermal analysis (DTA), thermogravimetry (TG), scanning electron microscope (SEM), and X-ray diffraction (XRD) techniques. Composition versus temperature diagrams have been established for these systems in air. In the ternary CuO-PbO-Ag system, there is a eutectic reaction CuO + PbO + Ag = L at 750-degrees-C and a composition of 12.07 mol. % Ag, 16.35 mol. % CuO, and 71.61 mol. % PbO. Two immiscible regions near the two binary tie lines PbO-Ag and CuO-Ag were detected. No binary or ternary compound was detected in these systems. SEM and EDS results confirm the presence of two liquid phases and the eutectic point.
引用
收藏
页码:69 / 71
页数:3
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