C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 41/52 (2006.01) F16D 69/02 (2006.01)
Patent
CA 2534396
A part made of a composite material containing carbon, having an open internal residual porosity is protected against oxidation by performing at least one stage in which an impregnating composition is applied, said impregnating composition containing at least one metal phosphate and titanium diboride. Efficient protection against oxidation is thus obtained at temperatures of more than 1000~ C, also in the presence of a carbon oxidation catalyst and in a damp medium.
Une pièce en matériau composite contenant du carbone et présentant une porosité résiduelle interne ouverte est protégée contre l'oxydation en réalisant au moins une étape d'application d'une composition d'imprégnation contenant au moins un phosphate métallique et du diborure de titane. Une protection efficace contre l'oxydation est ainsi obtenue à des températures supérieures à 1000· C, y compris en présence de catalyseur d'oxydation du carbone et en milieu humide.
Diss Pascal
Thebault Jacques
Sim & Mcburney
Snecma Propulsion Solide
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