SiC-based Diesel Particulate Filter Developed by New Sintering Process

摘要

This paper explains the characteristics and the performance results of evaluation test on the SiC-based Diesel Particulate Filter (DPF) developed by a new sintering process (Partial reaction sintering in nitrogen atmosphere). The new process enables a control of porosity and pore size distribution of the filter material with comparatively high flexibility, in addition to the cost reduction compared with the normal sintering process. The developed filter indicated sufficient thermal durability and higher filtration efficiency on the initial stage which can respond to the severe regulation demanded in the future by controlling the pore size on the wall surface and the microstructure in the wall.