RESEARCH ON THERMAL SHOCK RESISTANCE OF A FUNCTIONALLY GRADIENT CERAMIC MATERIAL WITH SYMMETRICAL STRUCTURE

The thermal shock resistance of an Al\-2O\-3/(W,Ti)C functionally gradient ceramic material with symmetrical structure is investigated by means of water quench tests as well as the calculation of transient thermal stresses during thermal shock process.The results indicate that the thermal shock resistance of ceramic material can be improved by controlling the compositional distribution appropriately.