Three-dimensional fiber structure of refractory fibers, a method of making it, and thermostructural composite materials, in particular friction parts, made therefrom

摘要

Carbon nanotubes are incorporated in the fiber structure by growing them on the refractory fibers of the substrate so as to obtain a three-dimensional substrate made of refractory fibers and enriched in carbon nanotubes. The substrate is densified with a matrix to form a part of composite material such as a friction part of C/C composite material.