Abstract: The present invention concerns the technique for the manufacture of composite materials.It relates to a process and an apparatus which make it possible continuously to deposit refractory materials, in particular boron, onto a conductive filament heated by means of the Joule effect and by means of a current produced by a high-frequency generator.It also relates to the apparatus for carrying out the said process.This new process has the advantage that it makes it possible, in particular, to obtain a fibre of high tensile strength, while at the same time maintaining a high speed of travel.

Abstract: In panels for use particularly in the aeronautics industry comprising a metal support foil to which is adhered a fiber-reinforced metal matrix layer, the fibers being of high mechanical strength and modulus, the invention provides the improvement of interposing a thin layer of a bonding metal or alloy between the support foil and the fiber-reinforced metal matrix layer.The bonding metal layer serves to improve the adhesion of the metal matrix to the support foil and enables the metal matrix layer to be produced under less severe conditions.