Equilibrium between Molten Iron and Al₂O₃-SiO₂ Oxides

Abstract

Experimental study and thermodynamic consideration studies have been conducted on the equilibrium relationships in Fe-Al-Si-O system. The quantitative relations between the compositions of molten iron alloys and the oxide phases were determined experimentally. The equilibrium constants for the deoxidation by silicon and aluminum and for the formation of mullite (3Al₂O₃· 2SiO₂) from its constituent oxides were determined.