CERAMIC MEMBER WITH ROUGHENED SURFACE AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a ceramic member having a roughened surface and a method for manufacturing the member which shows an excellent anchor effect or different kinds of materials adhering and depositing on the surface while the member suppresses or prevents emission of gas. SOLUTION: The ceramic member having the roughened (porous) surface is composed of a dense ceramic material having >=95 wt.% purity as the base material and has a surface layer formed into a rough structure containing fine pores having the pore size as 0.5 to 50 times as the average particle diameter of the ceramic material which constitutes the base material and having the maximum diameter in the depth direction.