Abstract
During the last decade the development of composites based on a carbon matrix reinforced with carbon fibres (carbon/carbon composites) has been growing rapidly. In fact carbon/carbon (C/C) composites are attractive materials for use at high temperature in application requiring strength, toughness and low weight. Their first application was in aerospace industry (rocket nozzles, exhaust cones and reentry tips) where their extremely high refractive nature could be used with success. Another development of C/C composite was for aircraft disk brakes. There is however a severe limitation in the development of such materials since carbon reacts with oxygen at temperature below 500°C which will induce damage and rapid destruction of the composite. The lifetime in air of a C/C composite under a static load corresponding to 75% of fracture load decreases from 400 hours at 360°C to nearly zero at 500°C [1]. Furthermore, considering that the lifetime of the composite is about the same at 2500°C than at 350°C, one realizes the need of an efficient protection against oxidation for these composites.
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© 1990 Springer Science+Business Media Dordrecht
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Ehrburger, P. (1990). Protective Layers for Special Types of Composites. In: Figueiredo, J.L., Bernardo, C.A., Baker, R.T.K., Hüttinger, K.J. (eds) Carbon Fibers Filaments and Composites. NATO ASI Series, vol 177. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-6847-0_14
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DOI: https://doi.org/10.1007/978-94-015-6847-0_14
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