Method of treating ceramic fibers by phosphating
AssigneesHerakles, Centre National De La Recherche Scientifique
InventorsStephane Mazerat, Rene Pailler, Sylvie Loison, Eric Philippe
Life of this patent
Estimating the term…
Abstract
A method of treating silicon carbide fibers comprises phosphating heat treatment in a reactive gas so as to form a coating around each fiber for protection against oxidation. The coating comprises a surface layer of silicon pyrophosphate crystals and at least one underlying bilayer system comprising a layer of a phosphosilicate glass and a layer of microporous carbon.
Claims12
A method of treating silicon carbide fibers, the method comprising phosphating heat treatment in a reactive gas so as to form a coating around each fiber for protection against oxidation, the coating comprising a surface layer of silicon pyrophosphate crystals and at least one underlying bilayer system comprising a layer of a phosphosilicate glass and a layer of microporous carbon.
Dependencies are inferred from the claim text.