Abstract
Preparation of Silicon Carbide (SiC) porous ceramics with different sizes of SiC powders as raw material.The effects of reaction temperature and particle size on porosity, pore size distribution and flexural strength of SiC porous ceramics were studied. The results show that: Using SiC labeled F600 as raw material, when the sintering temperature is 2200 oC, the SiC porous ceramics have the best properties, the average pore size is 2.48 μm, the pore size distribution is uniform, the porosity can reach 53.75 % and the flexural strength is 21.23 Mpa. The maximum pore size distribution of SiC porous ceramics is proportional to the particle size of SiC, and the average pore size is linearly related to the median diameter of the raw material.
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