Durability of Si bonded SiC material for Diesel Particulate Filter

Abstract

Durability of SiC porous materials for diesel particular filter(DPF) was investigated. Evaluated SiC materials were newly developed material, Si-bonded SiC(Si-SiC) and conventional material, recrystallized SiC(Re-SiC). Si-SiC had invariable properties before and after oxidation test, while Re-SiC had variable properties, and were sensitive to oxidation. It would be caused by difference of each microstructure. Si-SiC had good thermal shock resistance, compared with Re-SiC. It would be caused by plastic deformation of matal-Si.