INTERFACE TAILORING IN CARBON-FIBERS REINFORCED METAL-MATRIX COMPOSITES

The fabrication of high performance metal matrix composites requires t he optimization of the interfacial bonding, which supposes a strict co ntrol of the reactivity and of the wettability between the matrix and the reinforcement, specially for materials produced by casting techniq ues. In this rope, two methods are described consisting on the one han d, in the surface treatment of carbon fibres by a particular type of C VD and, on the other hand, in modifying the composition of the matrix. The two methods can be used either separately or in combination, suce ssful tailoring of the interface being the result of thermodynamic or kinetic effects.