Critical thermodynamic evaluation and optimization of the Fe–Mg–O system

摘要: Abstract A complete literature review, critical evaluation and thermodynamic modeling of the phase diagrams properties at 1 bar total pressure all oxide phases in Fe–Mg–O system are presented. Optimized model equations for obtained which reproduce available equilibrium data within experimental error limits from 25 °C to above liquidus temperatures compositions oxygen partial pressures. The complex relationships have been elucidated discrepancies among resolved. database parameters can be used along with software Gibbs energy minimization order calculate any type diagram section. Sublattice models, based upon compound formalism, were spinel, pyroxene, olivine monoxide phases. use physically reasonable models means that predict properties, equilibria, cation site distributions composition temperature regions where not available.