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About this Abstract
Meeting 2022 TMS Annual Meeting & Exhibition
Symposium Computational Thermodynamics and Kinetics
Presentation Title O-19: Thermodynamic Assessment of the SiO2-Y2O3 System
Author(s) Wenke Zhi, Fei Wang, Xiaoyi Chen, Bin Yang, Yongnian Dai, Yang Tian
On-Site Speaker (Planned) Wenke Zhi
Abstract Scope The phase relations and homogeneity ranges are helpful to optimize the functional performance of SiC/SiC ceramic matrix composites. Based on the calculated phase diagram (CALPHAD) method, the SiO2-Y2O3 system has been thermodynamically assessed based on experimental data available. The liquid phase is described by the modified quasichemical model and all solid phases are treated as stoichiometric compounds. A set of self-consistent model parameters for all phases in the system is obtained. This provides theoretical guidance for further study of the reaction between SiO2 and rare earth.
Proceedings Inclusion? Planned:
Keywords Modeling and Simulation,

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