Effect of Pore-Forming Processing on the Gas Permeability and Flexural Strength of Porous SiC Ceramics
The porous SiC ceramics were prepared by two methods of pore-forming. The gas permeability and flexural strength of the porous SiC ceramics prepared by different ways were investigated. The porous SiC ceramics prepared by particle stacking have evenly pore distrubution; the gas permeability was greatly increased with the particle size increasing while the porous SiC ceramics were kept a higher flexural strength. The pore-former also can be used to form large pores to increase the gas permieability. However, these unevenly distribution large pores lead to a deterioration in flexural strength.
Wei Pan and Jianghong Gong
L. Fan et al., "Effect of Pore-Forming Processing on the Gas Permeability and Flexural Strength of Porous SiC Ceramics", Advanced Materials Research, Vols. 105-106, pp. 623-626, 2010