METHOD FOR PRODUCTION OF SINTERED MATERIAL OF SILICON NITRIDE SYSTEM

摘要

PURPOSE:To fabricate refractory structural material with superior high-temperature strength and resistance against thermal shock and corrosion by hotpressing a mixture of powder of silicon nitride system made of alpha-Si3N4 with no O2 and specified amount of metals without Si, powder of IIIB group metal oxides, and powder of Al2 O3.