LIGHTWEIGHT CERAMIC MEMBER AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a lightweight member as a construction member. SOLUTION: The lightweight ceramic member of <=2 volumetric specific weight is obtained by forming a surface compacted layer having <=5 vol.% porosity of any of a metal silicon, a resin and glass on a substrate of a porous ceramic having a specified porosity composed of at least one kind selected from among cordierite, silicon nitride, silicon cabide and alumino silicate glass.