Preparation of SiOC Foam Ceramics Using Poiysiloxane
The SiOC foam ceramics were prepared using polyurethane sponge and polysiloxane as raw materials.The effects of the pyrolysis temperature,the concentration of polysiloxane solutions,and the content of SiC nano-powder on compression strength of the SiOC foam ceramics have been investigated respectively.The optimum compression strength of SiOC foam ceramics is obtained at the pyrolysis temperature of 1250℃ and the concentration of solution PSO of 0.8 g/ml.Adding SiC nano-powder into PSO can effectively increase compression strength of samples,and the maximum compression strength,20.8 MPa,is obtained when the content of SiC nano-powder is 5 wt%.Microstructural study reveals that the foam ceramics have an open,uniform and interconnected porous structure with high porosity of 80%.
Foam ceramics Polysiloxane Inert filler
Hongli Liu Wenwu Zhong Yangwu Mao
College of Materials Science and Engineering,Jiamusi University,Jiamusi 154007,P.R.China School of Materials Science and Engineering,BeiHang University,Beijing 100083,P.R.China
国际会议
The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))
长沙
英文
920-922
2007-05-10（万方平台首次上网日期，不代表论文的发表时间）