Porous Materials with Hybrid Structure Produced by Nitriding Partially-sintered Silicon
(0) New porous materials with hybrid pore structure“Fibers-ln-Poresstructure were produced by developing Si3N4 whiskers in pores of partially-sintered silicon by nitriding. Because silicon and Si3N4 have excellent heat resistance, the proposed porous materials are expected to utilize high-temperature applications such as gas filters. Porous silicon was produced by sintering Si powder at 1300℃ for I h in a stream of Ar gas. Porous Si bodies were nitrided at 1300℃ for 1 h with N2 gas to develop long Si3N4 whiskers in pores of partially-sintered silicon. Specific surface area was increased and gas permeability was decreased by applying the nitridation process at 1300℃.
Silicon Si3N4 Whiskers Nitridation Sintering Porous Materials
Makoto Nanko
Nagaoka University of Technology, Kamitomioka, Nagaoka, Niigata 940-2188, JAPAN
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
765-768
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）