| abstract |
PROBLEM TO BE SOLVED: To provide a coated particle having a coating layer for coating an inorganic particle, which can favorably exhibit the inherent properties of the inorganic particle and the constituent material of the coating layer, such as high dispersibility and high mechanical properties. SOLUTION: A method for producing SiC particles coated with aluminum hydroxide is exemplified. It contains SiC particles in which the amount of an inorganic oxide per unit surface area of the particle surface does not exceed 0.150 mg/m 2 , alkali and water, and has a pH of A raw material dispersion liquid (1) of 9 or more and 12 or less and a raw material solution (2) containing sodium aluminate and water are prepared, and the raw material dispersion liquid (1) is mixed with the raw material solution (2). Acid is added to maintain the pH in the range of 9 or more and 12 or less to form coated particles having a coating layer containing aluminum hydroxide on the surface of the SiC particles. By this method, it is possible to produce coated particles having a high dispersibility and capable of obtaining a fired body that exhibits good characteristics under easier conditions such as a lower firing temperature. [Selection diagram] None |