METHOD FOR PROTECTING PRODUCTS MADE OF REFRACTORY MATERIAL AGAINST OXIDATION, AND RESULTING PROTECTED PRODUCTS

摘要

A coating for providing anti-oxidation protection is formed at least on the surface of the material and it comprises a refractory phase which is formed mainly of the refractory silicide Ti(0.4-0.95)Mo(0.6-0.05)Si2, and which has a branching microstructure forming an armature within which a healing phase is distributed that is constituted by a eutectic which is formed mainly of unbound silicon of the silicide Ti(0.4-0.95)Mo(0.6-0.05)Si2, and of at least the disilicide TiS2. The coating is obtained from a mixture of powders that is deposited on the surface of the material and that is subjected to heat treatment under an inert atmosphere.