PROCESS FOR THE THERMAL TREATMENT OF CERAMIC FIBERS BASED ON SILICON AND CARBON AND FIBERS OF THE SAME NATURE WITH A LAMINATED STRUCTURE

摘要

The invention relates to a method for treating ceramic fibers based on silicon and carbon, as well as fibers of the same nature with a laminated structure comprising an outer layer of carbon. the invention consists in carrying out a heat treatment under vacuum for a period of at least 3 hours and at a temperature of the order of 1000 ° C. This treatment makes it possible to obtain fibers surrounded by a layer of endogenous SiO 2, itself coated with an endogenous carbon layer. These fibers can be used for the production of composite materials with fibrous reinforcement. . / P