Ceramic sintered bodies and a method of producing the same

摘要

An object of the invention is to integrate porous ceramics and dense ceramics with an adequately high bonding strength. A ceramic sintered body 1 has a dense portion 2 and a porous portion 3. The dense portion 2 is formed with sintered ceramic fine particles. The porous portion 3 is formed with sintered ceramic coarse particles. The fine particles and coarse particles are subjected simultaneously to pressure sintering to form the dense portion 2 and porous portion 3.