Method of producing a ceramic material for insert casting.

摘要

An excellent ceramic material suited well to be insert cast by a molten metal can be provided having 655 or more aluminum titanate in the crystal phases, the crystal phases of aluminum titanate having an average grain size of 10 mu m or more. The material may have a Young's modulus of 50-2,000 kgf/mm<2>, a compression strength of 5-40 kgf/mm<2>, and a porosity of 5-35%. use is made of an Al2O3 source material of coarse particle size and a TiO2 source material of fine particle size, specifically an alumina source material having an Al2O3 content of not over 96% and an average particle diamter of not less than 3 mu m and a titania source material having an average particle diameter of not over 3 mu m.