Experimental study of the phase relationships in the SiO2-SrO-Al2O3 system

The phase relationships in silica rich area in the SiO2-SrO-Al2O3 system were determined experimentally at 1723 K (1450 °C), 1823 K (1550 °C) and 1873 K (1600 °C) using quenching technique. Phases of the quenched samples were examined and identified using light optical microscopy (LOM), scanning electron microscope (SEM) and energy dispersive x-ray spectroscopy (EDS). X-ray Diffraction (XRD) was used to confirm the presence of solid phases. Based on the experimental results, the liquidus projections in the silica rich area for the studied temperatures were constructed.