Als Flammschutzschicht verwendbarer Verbundwerkstoff mit Siliciumcarbidmatrix

A composite which resists mechanical and thermal stresses in an oxidising and/or reducing medium, comprising a silicon carbide matrix reinforced with refractory fibres. The composite according to the invention is characterised in that the said matrix is formed by heat treatment of an impregnating resin containing silicon carbide particles. To obtain such a composite, refractory fibres impregnated with a resin containing silicon carbide particles are reeled to form a precursor which is subjected to a heat treatment to pyrolyse the resin and to provide cohesion by sintering the silicon carbide particles. This type of composite can be employed especially as a flame-shield layer for a ramjet engine chamber.