Abstract
In this paper mixed two kinds of SiC particles with different diameter (50-70 mesh and 80-90 mesh) as aggregate of SiC porous ceramics. And the porous ceramic properties were measured when the pore-making agent was 7.5wt%, 10wt% and 15wt% respectively. The experiments show that the porosity, flexural strength and filtration pressure drop of double-particle size porous ceramics is optimized compared with single size porous ceramics. In the pore-forming agent was 10wt% and 50-70 mesh SiC particle was 10wt%, the flexural strength was 40.71MPa, and porosity was 35.69%. It was 4.76MPa and 6.9% higher than single-particle size sample, and the filtration pressure drop has a significant decrease.
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