Abstract

Phase equilibria in the FeSe–Ga₂Se₃–In₂Se₃ system were studied by differential thermal analysis and X-ray powder diffraction analysis. A number of polythermal sections, the isothermal section at 1000 K, and the projection of the liquidus surface of the phase diagram were constructed. It was determined that this system is quasi-ternary, and that the liquidus surface comprises the fields of primary crystallization of six phases. The types and coordinates of invariant and monovariant equilibria were found. Wide regions of solid solutions based on binary and ternary compounds (FeGa₂Se₄, FeIn₂Se₄) were revealed, being of interest as magnetic materials.

中文翻译：

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FeSe–Ga 2 Se 3 –In 2 Se 3体系的理化分析

摘要

通过差热分析和X射线粉末衍射分析研究了FeSe-Ga ₂ Se ₃ -In ₂ Se ₃体系中的相平衡。构造了多个多热段，1000 K的等温段以及相图的液相线表面投影。已经确定该系统是准三元体系，并且液相线表面包含六相的初级结晶场。找到了不变和单变量平衡的类型和坐标。基于二元和三元化合物（FeGa ₂ Se ₄，FeIn ₂ Se ₄）被发现，作为磁性材料而受到关注。