Abstract: In the investigations on sintering properties of corundum/β-Sialon composite materials prepared by reaction sintering, the stepwise regress method was used to establish the models of
properties (bulk density, apparent porosity, and modulus of rupture at room temperature). The results of checking experiments are in accordance with the regress values. This means that the models can
be used to forecast the sintering properties of corundum/β-Sialon composite.

Key words: β-Sialon, corundum, composite, reaction sintering, stepwise regress