Patent ID: 7851396

Claim:
A method of manufacturing a porous sintered body, the method comprising: mixing first silicon carbide particles, second silicon carbide particles, and a pore forming material having an average particle diameter Y pm to obtain a molding material, the first silicon carbide particles having an average particle diameter X μm larger than an average particle diameter of the second silicon carbide particles, relationships 15≦X , 0.5 ·X≦Z≦ 0.9· X, and 0.8 ·Z≦Y≦ 1.8· Z being satisfied, wherein Z μm is an average pore diameter of the porous sintered body no less than 10 μm and no greater than 20 μm; molding the molding material into a molded body; and degreasing the molded body to eliminate the pore forming material from the molded body.