Abstract

Phase equilibria in the Eu–Mn–O system were studied by X-ray powder diffraction in samples mechanically preactivated and prepared under an oxygen pressure \({{P}_{{{{{\text{O}}}_{{\text{2}}}}}}}\) of 10^–5–10² kPa and in those prepared under a reductive atmosphere at a partial hydrogen pressure \({{P}_{{{{{\text{H}}}_{{\text{2}}}}}}}\) of about 5 kPa. \({{P}_{{{{{\text{O}}}_{{\text{2}}}}}}}\)–T and x–y projections of the P–T–x–y diagram of the Eu–Mn–O system and selected x–y isotherms of the Eu₂O₃–MnO–MnO₂ quasiternary system were plotted.

中文翻译：

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Eu-Mn-O 体系中的相平衡

摘要

Eu–Mn–O 体系中的相平衡通过 X 射线粉末衍射研究了在氧气压力下机械预活化和制备的样品\({{P}_{{{{{\text{O}}}_{{ \text{2}}}}}}}\)为 10 ^–5 –10 ² kPa 和在氢气分压下在还原气氛下制备的那些\({{P}_{{{{{\text{H }}}_{{\text{2}}}}}}}\）约 5 kPa。\({{P}_{{{{{\text{O}}}_{{\text{2}}}}}}}\) –T和P–T–x–的x–y投影Eu–Mn–O 系统的y图和 Eu ₂ O ₃ –MnO–MnO _2的选定x – y等温线绘制准系统。