Preparation of Silicon Carbide porous Ceramics

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Hong, Liu^1 ; Wang, Zhao^1 ; Wang, Shulin^1 ; Xu, Man^1,2

Wuhan Institute of Technology, Wuhan, Hubei

430073, China^1

Engineering Research Center of Environmental Materials and Membrane Technology of Hubei Province, Wuhan, Hubei

430073, China^2

关键词: Different sizes;    Median diameters;    Porous ceramics;    Reaction temperature;    SiC powder;    Silicon carbides (SiC);    Sintering temperatures;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/2/022070/pdf
DOI  :  10.1088/1757-899X/394/2/022070

来源: IOP

【 摘 要 】

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.