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, |