Study on the performance of honeycomb ceramics carrier based on the ordinary paper

Abstract

Abstract This thesis deals with SiC/Si honeycomb ceramics carrier, which was prepared by ordinary papers through series of techniques including sol–gel technology, processes of folding, pasting, bio-mimetic design, low-temperature carbonization, high-temperature reduction carbonization and Si-removing. The phase composition, microstructure and mechanical properties of this carrier were analysed by XRD, SEM, TEM, three-bending tests, and the results showed that after carbonizing the ceramic paper turned into amorphous carbon, and through silicon infiltrating in the vacuum environment, the phase was composed of β-SiC, Si, and C. The bending strength of SiC/Si honeycomb ceramics carrier is 200 MPa. The more silicon removing time is, the porosity of porous SiC will be increased, while its strength and toughness will be decreased.