| 摘要 |
PROBLEM TO BE SOLVED: To provide a silica formed body which is a porous body that is formed from a single ultrafine silica powder and useful as a heat insulating material, an abrasive material or the like and a method of producing the same. SOLUTION: The silica formed body consists essentially of silica (silicon dioxide) and has 0.2 to 1.5 g/cm<SP>3</SP>bulk density, 15 to 400 m<SP>2</SP>/g BET specific surface area and 0.001 to 0.5μm average grain size. In the formed body, the cumulative total pore volume of all the pores is 0.3 to 4 cm<SP>3</SP>/g and the cumulative pore volume of pores having a≤1μm average pore size is≥70% of the cumulative total pore volume and also, the cumulative pore volume of pores having≤0.1μm average pore size is≥10% of the cumulative total pore volume. The method of producing the silica formed body is provided. COPYRIGHT: (C)2007,JPO&INPIT
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