M. Aparicio et A. Duran, C/SiC composites for high temperature structural applications. Part I: thermodynamical and chemical stability, B S ESP CER, 39(6), 2000, pp. 687-698
Citations number
77
Categorie Soggetti
Material Science & Engineering
Journal title
BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO
The development of aero-engine and aircraft industry is aimed to hypersonic
technology, efficiency enhancements and pollutant emission reductions. Thi
s objective can only be reached by increasing the operating temperatures, u
tilising new materials which mechanical properties are retained up to high
temperatures. SiC matrix composites reinforced with carbon fibres (C/SiC) a
re good examples with very good bending and thermal shock resistance at tem
peratures up to 1600 degreesC as well as low density. However, the fact whi
ch currently inhibits the application of these materials is the high oxidat
ion rate of carbon fibres at temperatures above 450 degreesC. Ln the first
part of the paper, a review of the most important properties and oxidation
mechanisms of C and SiC has been carried out. The influence of each materia
l disposition, individually and as composite, has been analysed.