Critical thermodynamic evaluation and optimization of the MgO-Al2O3, CaO-MgO-Al2O3, and MgO-Al2O3-SiO2 Systems |
| |
Authors: | In-Ho Jung Sergei A Decterov and Arthur D Pelton |
| |
Affiliation: | (1) Centre de Recherche en Calcul Thermochimique (CRCT) école Polytechnique de Montréal, P.O. Box 6079, H3C 3A7 Station “Downtown” Montréal, PQ, Canada |
| |
Abstract: | A complete literature review, critical evaluation, and thermodynamic modeling of the phase diagrams and thermodynamic properties
of all oxide phases in the MgO-Al2O3, CaO-MgO-Al2O3, and MgO-Al2O3-SiO2 systems at 1 bar total pressure are presented. Optimized model equations for the thermodynamic properties of all phases are
obtained that reproduce all available thermodynamic and phase equilibrium data within experimental error limits from 25 °C
to above the liquidus temperatures at all compositions. The database of the model parameters can be used along with software
for Gibbs energy minimization to calculate all thermodynamic properties and any type of phase diagram section. The modified
quasichemical model was used for the liquid slag phase and sublattice models, based upon the compound energy formalism, were
used for the spinel, pyroxene, and monoxide solid solutions. The use of physically reasonable models means that the models
can be used to predict thermodynamic properties and phase equilibria in composition and temperature regions where data are
not available. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|