Abstract
The effect of CO treatments on thermal stability of low-oxygen SiC fibers (Hi-Nicalon) was examined at 1273–1773 K using mass change measurements, X-ray diffraction (XRD) analysis, Auger electron spectroscopy (AES) analysis, resistivity measurements, scanning electron microscopy (SEM) observation and tensile tests. The fiber properties remained unchanged by heating below 1573 K. In addition to the grain growth of SiC, reduction of resistivity and degradation of strength above 1573 K, mass loss was observed above 1673 K. AES analysis showed carbon film formation on fiber surfaces at high temperature. The carbon film was formed by the following reaction:
CO(g) + SiC(s) = SiO(g) + 2C(s)
A Tensile strength of 1.83 GPa was retained even after exposure at 1773 K for 10 h, owing to the suppressing effect of the carbon film on the thermal decomposition of SiC X O Y phase.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
T. Mah, N. L. Hecht, D. E. McCullum, J. R. Hoenigman, H. M. Kim, A. P. Kats and H. A. Lipsitt, J. Mater. Sci. 19 (1984) 1191.
Y. Maniette and A. Oberlin, ibid. 24 (1989) 3361.
M. H. Jaskowiak and J. A. Di. Carlo, J. Amer. Ceram. Soc. 74 (1989) 192.
H.-E. Kim and A. J. Moorhead, ibid. 74 (1991) 666.
T. Shimoo, H. Chen and K. Okamura, J. Ceram. Soc. Jpn. 100 (1992) 929.
T. Shimoo, T. Hayatsu, M. Takeda, H. Ichikawa and K. Okamura, ibid. 102 (1994) 617.
M. H. Berger, N. Hochet and A. R. Bunsell, J. Microsc. 177 (1995) 230.
P. Le. Coustumer, M. Monthioux and A. Oberlin, Br. Ceram. Trans. 94 (1995) 177.
C. Vix-Guterl and P. Ehrburger, J. Mater. Sci. 31 (1996) 5363.
G. Chollon, R. E. Pailler, R. Naslain, F. Laanani, M. Monthioux and P. Olry, ibid. 32 (1997) 327.
G. Chollon, M. Czerniak, R. Pailler, X. Bourra, R. Naslain, J. P. Pillot and R. Cannet, ibid. 32 (1997) 893.
M. H. Berger, N. Hochet and A. R. Bunsell, J. Microsc. 185 (1997) 243.
T. Shimoo, F. Toyoda and K. Okamura, J. Ceram. Soc. Jpn. 106 (1998) 447.
Y. T. Zhu, S. T. Taylor, M. G. Stout, D. P. Butt and C. Lowe, J. Amer. Ceram. Soc. 81 (1998) 655.
M. Takeda, J. Sakamoto, Y. Imai and H. Ichikawa, Composites Sci. and Tech. 59 (1999) 813.
T. Shimoo, F. Toyoda and K. Okamura, J. Mater. Sci. 35 (2000) 3301.
T. Shimoo, H. Takeuchi and K. Okamura, J. Ceram. Soc. Jpn. 108 (2000) 1096.
T. Shimoo, Y. Morisada and K. Okamura, J. Amer. Ceram. Soc. 83 (2000) 3049.
T. Shimoo, H. Takeuchi and K. Okamura, ibid. 84 (2001) 566.
T. Shimoo, Y. Morisada and K. Okamura, J. Mater. Sci. 37 (2002) 1793.
T. Shimoo, H. Takeuchi and K. Okamura, ibid. 37 (2002) in printing.
T. Shimoo, Y. Morisada and K. Okamura, ibid. 37 (2002) in printing.
T. Shimoo, T. Morita and K. Okamura, J. Amer. Ceram. Soc. 84 (2001) 2975.
Idem., J. Mater. Sci. 37 (2002) in printing.
G. S. Bibbo, P. M. Benson and C. G. Pantano, J. Mater. Sci. 26 (1991) 5075.
B. A. Bender, J. S. Wallace and D. J. Schrodt, J. Mater. Sci. Lett. 26 (1991) 970.
R. Bodet, N. Jia and R. E. Tressler, J. Eur. Ceram. Soc. 15 (1995) 997.
M.-H. Berger, N. Hochet and A. R. Bunsell, in “Properties and Microstructures of Small-Diameter SiC-Based Fibers,” in “Fine Ceramic Fibers” edited by A. R. Bunsell and M.-H. Berger (Marcel Dekker, New York, 1999) p. 246.
G. Chollon, M. Szerniak, R. Pailler, X. Bourrat, R. Naslain, J. P. Pillot and R. Cannet, J. Mater. Sci. 32 (1997) 893.
E. T. Turkdogon, “Physical Chemistry of High Temperature Technology” (Academic Press, New York, 1980) p. 5.
T. Shimoo, F. Toyoda and K. Okamura, J. Amer. Ceram. Soc. 83 (2000) 1450.
Idem., J. Mater. Sci. 35 (2000) 3811.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Shimoo, T., Okamura, K. & Morita, T. Thermal stability of low-oxygen silicon carbide fibers (Hi-Nicalon) in carbon monoxide. Journal of Materials Science 38, 3089–3096 (2003). https://doi.org/10.1023/A:1024721128931
Issue Date:
DOI: https://doi.org/10.1023/A:1024721128931