Preparation and Properties of SiC Porous Ceramics with Double-Particle Size

5th Annual International Workshop on Materials Science and Engineering

Xu, Chengshi^1 ; Dong, Youming^1 ; Liu, Yang^1 ; Li, Huan^1 ; Deng, Xiangyun^1

College of Physics and Materials Science, Tianjin Normal University, Tianjin

300387, China^1

关键词: Filtration pressures;    Pore making agents;    Pore-forming agents;    Porous ceramics;    SiC particles;    Single particle;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/585/1/012001/pdf
DOI  :  10.1088/1757-899X/585/1/012001

来源: IOP

【 摘 要 】

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.