Abstract
Silica present on the surface of ceramic fibres plays a critical role in the mechanical behaviour of composites due to fibre-matrix (F/M) interaction. This study has examined reaction kinetics and diffusion phenomena in the SiO2/Al(Mg,Cu) system between 400-800 °C. Magnesium strongly affects the rate of reaction. Apparent activation energies in the solid-liquid state were 8-74 kcal/mol depending on alloy composition. Analysis by TEM showed limited reaction between silica fibres and metal matrices for short liquid infiltration times. The F/M interface was found to be mechanically discontinuous.
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© 1990 Elsevier Science Publishers Ltd
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Stephenson, T., Lepetitcorps, Y., Quenisset, J.M. (1990). The Interfacial Role of Silica on Ceramic Fibre — Reinforced Aluminium Alloy Composites. In: Füller, J., Grüninger, G., Schulte, K., Bunsell, A.R., Massiah, A. (eds) Developments in the Science and Technology of Composite Materials. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-0787-4_32
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DOI: https://doi.org/10.1007/978-94-009-0787-4_32
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