Abstract
In order to reinforce and antioxidize porous carbon, chemical vapour infiltration (CVI) of SiC was investigated using a repetitive cycle of evacuation of vessel and instantaneous source-gas filling. From a source gas of 5% CH3SiCl3-H2, a temperature range of 1273 to 1373 K was considered to be suitable to infiltrate SiC into a deep level, and surface deposition was enhanced at above 1373 K which led to pore blockage. With 3000 pulses, flexural strength was improved from 35 to about 90 MPa. Several specimens were exposed to air at 1573 K for 1070h during which the specimens were cooled to room temperature between four and seven times. SiC felt was also obtained by oxidation of a carbon skelton after pulse CVI.
Similar content being viewed by others
References
B. DACIC and S. MARINKOVIC,High Temperatures-High Pressures 13 (1981) 185.
J. D. THEIS, Jr, Proceedings 3rd International Conference CVD, (Amer. Nuclear Soc., 1972) 561.
H. O. PIERSON and J. F. SMATANA, Proceedings 2nd International Conference CVD, (The Electro-chem Soc., NJ, 1970) 487.
H. TAWIL, LARRY D. BENTSEEN, S. BASKARAN and D. P. H. HASSELMAN,J. Mater. Sci. 20 (1985) 3201.
J. W. WARREN,Ceram. Eng. Sci. Proc. 6 (1985) 684.
L. H. HERAUD, F. CHRISTIN, R. NASLAIN and P. HAGENMULLER, Proceedings 8th International Conference CVD, (The Electro-chem Soc., NJ, 1981) 782.
R. NASLAIN, J. M. QUENISSET, J. Y. ROSSIGNOL, H. HANNACHE, P. LAMIEQ, J. J. CHAURY, L. HERAUD and F. CHRISTIN, 5th International Conference on Composite Materials, (The Electro-chem Soc., NJ, 1985) 499.
J. C. WITHERS, Proceedings 2nd International Conference CVD, (The Electro-chem Soc., NJ, 1972) 507.
W. V. KOTLENSKY, D. H. LEEDS, K. R. CARNAHAN, R. W. KIGER, P. R. DOMPSEY and P. PARTIN, Proceedings 2nd International Conference CVD, (The Electro-chem Soc., NJ, 1972) 574.
J. Y. ROSSIGNOL, F. LANGLAIS, R. NASLAIN, Proceedings 9th International Conference CVD, (The Electrochem Soc., NJ, 1984) 596.
L. R. NEWKIRK, R. E. RILEY, H. SEINBERG, F. A. VALENCIA, T. C. WALLACE, Proceedings 7th International Conference CVD, (The Electro-chem Soc., NJ, 1977) 515.
H. HANNACHE, J. M. QUENISSET, R. NASLAIN and H. HERAUD,J. Mater. Sci. 19 (1984) 202.
H. HANNACHE, F. LANGLAIS and R. NASLAIN, Proceedings 5th European Conference CVD, edited by J.-O. Carlson and J. Lindström (Uppsata Univ., Uppsala, 1985) 219.
A. J. CAPUTO, W. J. LACKEY and D. P. STINTON,Ceram. Eng. Sci. Proc. 6 (1985) 694.
H. H. MOELLER, W. G. LONG, A. J. CAPUTO and R. A. LOWDEN,Sample Quarterly,4 (1986) 1.
J. J. GEBHARDT, Proceedings 4th International Conference CVD, (1973) 460.
W. H. PFEIFER, W. J. WILSON, N. M. GRIESENAUER, M. F. BROWNING and J. M. BLOCHER Jr, Proceedings 2nd International Conference CVD, (The Electro-chem Soc., NJ, 1970) 463.
E. FITZER, D. HEGEN, H. STROHMEIER, Proceedings 7th International Conference CVD, (The Electro-chem Soc., NJ, 1977) 525.
W. A. BRYANT,J. Cryst. Growth 35 (The Electro-chem Soc., NJ, 1976) 257.
K. SUGIYAMA and T. NAKAMURA,J. Mater. Sci. Lett. 6 (1987) 331.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sugiyama, K., Yamamoto, E. Reinforcement and antioxidizing of porous carbon by pulse CVI of SiC. J Mater Sci 24, 3756–3762 (1989). https://doi.org/10.1007/BF02385767
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02385767