Abstract

Phase equilibria in the Cu₂Se–GeSe₂–SnSe₂ quasi-ternary system were studied by differential thermal analysis (DTA) and X-ray powder diffraction analysis. A series of polythermal sections, the 750-K isothermal section of the phase diagram, and the liquid surface projection were plotted. Primary crystallization and homogeneity areas of phases were determined, as well as the characters and types of invariant and monovariant equilibria. Extensive Cu₂GeSe₃-base and Cu₂SnSе₃-base solid solutions were found to exist in the system along the Cu₂GeSe₃–Cu₂SnSe₃ section.

中文翻译：

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Cu2Se-GeSe2-SnSe2 体系中的相平衡

摘要

通过差热分析（​​DTA）和X射线粉末衍射分析研究了Cu ₂ Se-GeSe ₂ -SnSe _{2准三元体系中的相平衡。}绘制了一系列多温截面、相图的 750-K 等温截面和液体表面投影。确定了相的初级结晶和均匀区域，以及不变和单变平衡的特征和类型。_{发现沿Cu 2} GeSe ₃ -Cu ₂ SnSe ₃体系存在大量Cu ₂ GeSe ₃基和Cu ₂ SnSе ₃基固溶体部分。