MULLITE-BASED SINTERED MATERIAL AND PRODUCTION THEREOF

摘要

PURPOSE:To inexpensively produce mullite-based sintered materials having excellent characteristics such as high-temperature strength by making a composition consisting of a specific amount of TiC and mullite having a specific particle diameter. CONSTITUTION:(A) Mullite (at least two or more selected from purified clay minerals, Bayer alumina and silica rock having 10-100mum particle diameter and comprising >=90% particles with <=5mum particle diameter are used as main raw and a composition ratio of Al2O3/SiO2 is prepared into a mullite formation range) is blended with (B) 5-40wt.% based on the component A of TiC (particle diameter: <=50mum), dried, molded and calcined (at >=1,600 deg.C for >=1 hour) to give a mullite-based sintered material.