AASTRACTS 331 ment. The electron microscope (both in the scanning and transmission modes) was used to examine the topography of both wet (60% HNOs, 118ยฐC) and dry oxidized (air, 700ยฐC) fibers as well as fracture surfaces of composites made with treated and untreated fibers. The flexural strength of
The chemical vapor deposition of carbon on carbon fibers
โ Scribed by H.O. Pierson; M.L. Lieberman
- Publisher
- Elsevier Science
- Year
- 1975
- Tongue
- English
- Weight
- 775 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0008-6223
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โฆ Synopsis
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 rate (2-16) limin). and carbon felt density (0.12-0.23 g/cm"). Most of the data obtained are in agreement with a CVD model for carbon; where agreement is not obtained, it is surmised that the assumptions of the model may not be satisfied.
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