Influence of Sintering Temperature on Properties of Porous SiC Ceramic Tube

The porous ceramics at different sintering temperature was prepared, using SiC powder as the aggregate, eutectic mixture sintering aids and the coal power as the pore-former. The effect of the different sintering temperature on the properties of the porosity, the gas flux, the pore size distribution and cross-bending strength of the porous SiC ceramics was investigated. The structure characteristics and morphology were characterized by SEM. The results showed that the porosity, the gas flux and cross-bending strength decreased, and the pore size distribution had a decrease with the increasing of sintering temperature.