Patent ID: 6761937
Filing Date: 2004-07-13
Classification: C04B,C23C,Y02T

Abstract:
A process for the manufacturing of a high-temperature-resistant ceramic-matrix composite layers, comprising:preparing powders for the feeding of a deposition plant comprising a thermal spraying device and a deposition chamber, by wet mixing of ceramics constituting material in a powder form thereby obtaining a suspension; and atomizing the suspension in the presence of a hot air jet; depositing said suspension by plasma thermal spraying in a deposition chamber containing inert gas at a pressure greater than 200 kPa, wherein the powders are prepared mixing different ceramics materials, in the form of powders having a <10 &mgr;m average particle size, and wherein the powders are made of two distinct ceramics materials, the first material being selected from the group consisting of at least one boride, oxide and mixtures thereof, and the second material being at least one carbide.