A Brief Note on Fluorescent Ceramics Prepared By Hot-Pressure Sintering

Author(s): Barner Wang

Five mullite foamed ceramics were made in this study using white clay, industrial alumina, and varying amounts of Si powder. The ceramics' compressive strength, alkali attack resistance, and thermal conductivity were evaluated in relation to the SiC whisker generation content that was controlled in situ by the various Si powder contents, and the optimal SiC whisker generation content was found. The porosity of the foamed ceramics decreased, the thermal conductivity increased, and the compressive strength first increased and then decreased as the Si powder content increased. The stability of ceramic matrices and a slower diffusion rate of alkali vapor enhanced the resistance to alkali corrosion. The optimized product was a specimen containing 10% Si powder, taking into account its mechanical, thermal, and alkali attack resistance properties