Patent ID: 9463489
Filing Date: 2016-10-11
CPC Classification: B05D,C04B,C23C

Claim Text:
1. A method for preparing a protective coating against oxidation on at least one surface of at least one part made of at least one material capable of being oxidized, wherein the following successive steps are carried out: a) each of the particles of a powder made of a first ceramic selected from refractory ceramics and ceramics which resist oxidation is coated with at least one layer selected from layers made of a refractory ceramic, layers made of a ceramic which resists oxidation, and layers made of a refractory metal, provided that the coating and the particle comprise at least one ceramic which resists oxidation, and at least one refractory ceramic or metal; b) the powder is deposited onto the surface to be coated of the part; c) sintering of the powder is achieved on the surface of the part by a Spark Plasma Sintering (SPS) method; d) the part is cooled; e) the cooled part, coated on at least one of its surfaces with a protective refractory monolayer coating against oxidation, with a three-dimensional microstructure, is recovered.