Abstract
In order to obtain the high heat-resistant fibre, Si-Zr-C-O fibre has been developed. Si-Zr-C-O fibre was produced by the use of polyzirconocarbosilane as the precursor polymer. In this paper, the difference in heat-resistance between Si-Ti-C-O and Si-Zr-C-O fibres was clarified. Si-Zr-C-O fibre showed excellent heat resistance (up to 1773 K) compared with Si-Ti-C-O fibre (up to 1573 K). Generally speaking, decomposition reaction of this type of fibre proceeds accompained by the release of CO gas which was formed by the reaction between excess carbon and oxygen included in the fibre. In the case of Si-Zr-C-O fibre, Zr can strongly capture the oxygen atoms, so that the aforementioned decomposition hardly proceeds up to 1873 K (ZrO2 + 3C = ZrC + 2CO; ΔG < 0 at over 1906 K).
Similar content being viewed by others
References
Y. Kagawa and T. Kishi, J. Japan Inst. Metals 56(12) (1992) 1470.
K. M. Prewo, J. J. Brennan and G. Layden, Ceramic Bull. 65 (1986) 305.
P. Lamicq, G. A. Bernhart, M. M. Dauchier and J. G. Marce, Amer. Ceram. Soc. Bull. 65 (1986) 336.
S. Yajima, K. Okamura, J. Hayashi and M. Omori, J. Amer. Ceram. Soc. 59 (1976) 3.
T. Yamamura, T. Ishikawa, M. Shibuya, T. Hisayuki and K. Okamura, J. Mater. Sci. 23 (1988) 2589.
T. Shimoo, M. Sugimoto, Y. Kakehi and K. Okamura, J. Japan Inst. Metals 55(3) (1991) 294.
M. Takeda, Y. Imai, H. Ichikawa, N. Kasai, T. Seguchi and K. Okamura, Ceram. Eng. Sci. Proc. 14(9–10) (1993) 540.
K. Kakimoto, T. Shimoo and K. Okamura, J. Ceram. Soc. Japan 103(6) (1995) 557.
R. N. Goshtagoreand R. L. Colbe, Phys. Rev. 143 (1966) 115.
T. L. Francis and R. L. Colbe, J. Amer. Ceram. Soc. 51 (1968) 115.
Rights and permissions
About this article
Cite this article
Yamaoka, H., Ishikawa, T. & Kumagawa, K. Excellent heat resistance of Si-Zr-C-O fibre. Journal of Materials Science 34, 1333–1339 (1999). https://doi.org/10.1023/A:1004506300754
Issue Date:
DOI: https://doi.org/10.1023/A:1004506300754