Nonfiring ceramics: Activation of silica powder surface ...
Evaluation of pulverization of silica powder by ball milling treatment. Fig. 1 shows the SEM micrographs of milled silica powders. It is shown that raw powder has a smooth surface and the particle size is ∼500 nm. As the raw powder is milled for 15 min, partial fracture of silica powder is observed and the powder surface becomes rougher than ...