Fabrication of Porous SiO2·RO/SUS Composite Body for DPF(Diesel Particulate Filter)and the Microwave Heating Behavior
Glass/stainless steel porous composite body were prepared by the polyurethane sponge replica method using slurries containing mixture of SiO2·RO/30 vol%SUS.Sintered porous samples were obtained which consists of well-distributed stainless steel particles within the glass matrix.Such a microstructure is desired for the purpose as a soot particulate filters(DPF)utilizing microwave rapid heating in cold start phase.Heating ability of the fabricated porous composite body was carried out placing the specimen in the maximum H-field of a 2.45 GHz single mode applicator.Heating behavior of the samples was mainly influenced by the volume fraction of stainless steel.Higher heating rate was observed for samples with higher stainless steel fraction.Due to the different microwave absorbability of the materials,stainless steel particle in the porous matrix structure was firstly heated up by microwave and transferred the heat energy throughout the whole sample.Increasing of the fraction of the stainless steel particle in the matrix structure led the better heating; however the strength of the samples decreased.
porous composite polyurethane sponge microwave heating
LEE Chang Chuan ICHIHASHI Yuma YOSHIKAWA Noboru TANIGUCHI Shoji
Graduate School of Environmental Studies,Tohoku University,980-8579 Japan;School of Manufacturing En Department of Materials Science and Engineering,Tohoku University,980-8579 Japan Graduate School of Environmental Studies,Tohoku University,980-8579 Japan
国际会议
The 7th International Conference on Electromagnetic Processing of Materials(第七届冶金与材料电磁过程国际大会)
北京
英文
1-5
2012-10-22（万方平台首次上网日期，不代表论文的发表时间）