Porosity control of porous silicon carbide ceramics
β Scribed by Su-Ho Chae; Young-Wook Kim; In-Hyuck Song; Hai-Doo Kim; Masaki Narisawa
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 824 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0955-2219
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## Abstract We report on the optical spectroscopies performed on porous SiC obtained by electrochemical etching of 6HβSiC wafers. Strong modifications of Raman and infrared spectra, characteristic of the porous material, have been detected. Various effective medium approximations have been employed
Biomorphic porous TiC and TiC/TiO 2 ceramics were covered with highly porous carbon, so-called carbide-derived carbon (CDC), by selective etching of Ti from TiC with chlorine containing gas in a temperature range 400-1000 β’ C. The etching rate of TiC is strongly affected by the chlorine concentratio