MULLITIZATION OF ANDALUSITE AND INFLUENCE OF AGGREGATES ON THE PROPERTIES OF ALUMINOSILICATE REFRACTORIES BASED ON ANDALUSITE MATRIX

摘要

The mullitization of andalusite from Xinjiang, China and influence of aggregates on properties of aluminosilicate refractories were studied by XRD, SEM, EDS, DSC. It was found that mullitization was obviously at 1400°C, but considerably at 1500°C. The refractory with corundum aggregates had the highest RUL, lowest creep rate, but refractory with bauxite aggregates had the lowest RUL, highest creep rate.