| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceramic porous body capable of suppressing the occurrence of defects in a counterpart material (workpiece) to be in contact, when it is used as an abrasive and a slide member. SOLUTION: The ceramic porous body fulfills all the following conditions: (1) micropore parts having a diameter of≤1μm and micropore parts having a diameter of >1μm are present on the surface of the ceramic porous body, (2) parts except both micropore parts on the surface of the porous body are composed of inorganic particles having an average particle diameter of≤1μm, (3) when parts except the micropore parts having a diameter of >1μm are defined as parts A and the micropore parts having a diameter of >1μm are defined as parts B, the area of parts A shares 40-80% of the area of the porous body and the area of parts B shares 20-60% of the area of the porous body, (4) the total area of micropore parts having a diameter of≤1μm present in parts A shares 15-75% of the total area of parts A, and (5) the surface hardness of the porous body is 80 or below. COPYRIGHT: (C)2007,JPO&INPIT
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