The relations between chemical vapor deposition (CVD) parameters and the resultant pyrolytic carbon microstructures have been examined for matrix deposition in fibrous carbon substrates. The parameters considered are temperature (1200-145O"C), pressure (20-630 Torr), C/H ratio (l/4-1/14), total flow
Chemical vapor deposition of pyrolytic carbon on SiC fibers
✍ Scribed by P. M. Silenko; A. N. Shlapak; V. P. Afanas’ev
- Book ID
- 110165656
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2006
- Tongue
- English
- Weight
- 151 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0020-1685
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AASTRACTS 331 ment. The electron microscope (both in the scanning and transmission modes) was used to examine the topography of both wet (60% HNOs, 118°C) and dry oxidized (air, 700°C) fibers as well as fracture surfaces of composites made with treated and untreated fibers. The flexural strength of
Carbon fibers 6.5 pm in diameter were coated with amorphous Sic films by chemical vapor deposition at temperatures as low as 80&9Oo"C, using triisopropylsilane in hydrogen. The morphology of the films was strongly affected by the reaction conditions. The tensile strength of the coated fibers was dec