Investigation of preparation and sintering of SiC porous ceramics

被引:0
作者
Chi, WG [1 ]
Jiang, DL [1 ]
Huang, ZR [1 ]
Tan, SH [1 ]
机构
[1] Chinese Acad Sci, Shanghai Inst Ceram, Shanghai 200050, Peoples R China
关键词
porous ceramics; thermogravimetric analysis; X-ray diffraction; flexural strength;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A new pore former (yeast) was used to fabricate SiC porous ceramics for the first time. The main components of yeast are C, H, O, N, P, S. Change of components of the SiC porous ceramics in sintering process was investigated in detail. The dispersion and stability of slurry depended strongly on the content of glycerol. The sintering behavior of the SiC porous ceramics showed a great difference with the change of the content of sintering aid (Al2O3) and the optimal content of Al2O3 was around 5% similar to 10%. The amount of yeast has great influence on the porosities and flexural strength of the SiC porousceramics. In addition, the sintering temperature and hold time had great influence on sintering properties of the SiC porous ceramics. The effect of sintering temperature on the components of the sintered products is very evident.
引用
收藏
页码:2002 / 2007
页数:6
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