Abstract—
Based on the ternary oxide system MgO–SiO2–TiO2, studied previously, we have constructed a phase tree, which has a linear structure and includes five stable triangles connected to each other by four stable joins. The phase tree has been used to predict phases crystallizing from a melt, with allowance for bounding systems, which contain five binary compounds. For intersections of stable and unstable joins at points corresponding to an equivalent ratio of the substances, we have described the main reactions of chemical interaction and carried out thermodynamic calculation of their direction under standard conditions. In addition, for arbitrary combinations of three to eight substances in the system, using the atomic balance method we have described chemical interaction, which has made it possible to identify simplexes containing mixtures after melting and crystallization. Interaction was estimated using thermodynamic calculations.
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This work was supported by the Russian Federation Ministry of Science and Higher Education as part of the state research target no. 0778-2020-0005, design stage.
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Garkushin, I.K., Sukharenko, M.A. Phase Tree, Prediction of Crystallizing Phases, and Description of Chemical Interaction in the MgO–SiO2–TiO2 System. Inorg Mater 58, 1191–1196 (2022). https://doi.org/10.1134/S0020168522110048
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DOI: https://doi.org/10.1134/S0020168522110048