By the methods of differential thermal, high‐temperature differential thermal, X‐ray phase shift, microstructural analyses and also by the measurement of microhardness and density interactions in Ga2S3;Eu2O2S system have been investigated.
The existence of three new phases of composition (EuO)2Ga4S7, EuGaOS2, (EuO)4Ga2S5 has been revealed in the system. The eutectic coordinates correspond to 12 mole‐% of Eu2O2S and 1210 K. The solubility on the basis of Ga2S3 at 295 K reaches 1 mole‐% of Eu2O2S.
The diagram of state of Ga2S3Eu2 O3 system has been investigated by the methods of differential thermal, high‐temperature differential thermal, X‐ray phase shift, microstructural and thermodynamic analyses, measurement of microhardness and density of the samples. It has been established that the system is eutectic, the solubility at 295 K on the part of Gas2S3 reaches 7 mole‐% of Eu2O3 and Ga2S3 · Eu2 O3 was found.
Mit Hilfe thermoanalytischer (DTA und Hochtemp.‐DTA), röntgenographischer, mikrostruktureller Untersuchungen, Mikrohärte‐ und Dichtebestimmungen sowie thermodynamischer Analyse wird das Zustandsdiagramm des Titelsystems untersucht.
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