Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1476894 | Journal of the European Ceramic Society | 2011 | 5 Pages |
Abstract
SiC porous ceramics were prepared by heating mixtures of Si powder and carbon black at 900 °C for 24 h in Na vapor. The grains of the Si powder were not only the source of Si for SiC but also served as templates for the pores in the SiC porous ceramics. Angular-shaped pores with sizes of 2–10, 10–150 and 50–150 μm were formed by angular Si grains with sizes of ≤10, ≤50 and ≤150 μm, respectively. The porosity of the SiC porous ceramics was around 55–59%. Spherical pores were also formed when spherical Si grains were used. A bending strength of 14 MPa was measured for the SiC porous ceramics prepared with the Si grains (≤50 μm).
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Hisanori Yamane, Takayuki Shirai, Haruhiko Morito, Takahiro Yamada, Yasuhisa Hasegawa, Takuji Ikeda,