Abstract:

A high strength corundum silicon carbide castable is developed by using brown corundum and silicon carbide as major starting materials and calcium aluminate cement as binder. Through optimizing grain composition and adjusting the adding amounts of cement and composite micropowder, the cold and high temperature strengths of sample which is affected by various factors are determined. The result shows that the developed corundum silicon carbide castable not only had a higher stength at normal temperature, but also possesses a very high hot strength.