Phase Equilibrium Studies of Refractory Oxide Systems. Part I: SrO-ZrO2-MgO and SrO-MgO-Dolomite

摘要

The possible utility of selected compositions in the systems SrO-ZrO2-MgO and SrO-ZrO2-dolomite for commercial refractory products was confirmed in this study. Specifically, the compositions of interest are located in the subsystems SrZrO3-ZrO2-MgO and SrZrO3-ZrO2-dolomite. Both subsystems have regions that are not affected by hydration, but the subsystem SrZrO3-ZrO2-MgO has a larger candidate compositional region. Solid-state phase relations were determined for the systems over the temperature range 1,600 to 1,300C, with compatibility diagrams presented for each. The systems appear to show good refractory character with no apparent low melting compositions.