Study on Preparation Technology of Porous Ti2SiC2 Materials
Using Ti3SiC2 powder as raw material,polyethyleneimine as dispersant,deionized water as dispersion medium,and polyurethane sponge as porous template,the influence of dispersant on pH of slurry and the influence of pH on stability of Ti3SiC2 water-based slurry were systematically studied.Porous Ti3SiC2 preforms were prepared by organic impregnation method.Porosity and phase analysis of porous Ti3SiC2 materials were carried out.When the mass fraction of Ti3SiC2 sample in water-based slurry was 30％,the performance was the best.Its total porosity is 66％,specific surface area is 90％,and the material is mainly closed pores.
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