Phase equilibria and thermodynamic optimization of the ZnO-SiO2 and MgO-ZnO-SiO2 systems
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Ceramics International, Volume 51, issue 25PC, pp. 47003-47013
Abstract
The phase equilibria of the binary ZnO-SiO2 and ternary MgO-ZnO-SiO2 systems were investigated. Several experiments on the MgO-ZnO-SiO2 were carried out at 1550 °C and 1600 °C. The equilibrated samples were observed and analyzed using EPMA and SEM/EDS. A renewed ternary peritectic point at 1573 °C for the olivine, periclase, zincite, and liquid slag phases was observed. Based on the experimental data from this study and previous studies, the thermodynamic parameters for the binary ZnO-SiO2 and ternary MgO-ZnO-SiO2 systems were developed or optimized with the modified quasichemical model using thermochemical software, FactSage 8.3. The optimized phase diagram of the binary ZnO-SiO2 system fits well with experimental data from previous studies, and its thermodynamic parameters showed reasonable values. The optimized phase diagrams of the ternary MgO-ZnO-SiO2 system at 1550 °C–1740 °C are in good agreement with the phase equilibria studies in this study and previous research.Description
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Jeon, J, Michallik, R M & Lindberg, D 2025, 'Phase equilibria and thermodynamic optimization of the ZnO-SiO 2 and MgO-ZnO-SiO 2 systems', Ceramics International, vol. 51, no. 25PC, pp. 47003-47013. https://doi.org/10.1016/j.ceramint.2025.07.405