C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 41/85 (2006.01) C03C 8/14 (2006.01) C03C 8/20 (2006.01) C04B 41/50 (2006.01) C04B 41/52 (2006.01) C04B 41/86 (2006.01) C04B 41/89 (2006.01) F02K 9/97 (2006.01) F16D 69/02 (2006.01)
Patent
CA 2482001
A piece for protection has applied thereto a composition comprising a mixture of boride powder constituted for the most part of TiB2, at least one vitreous refractory oxide powder constituted for the most part by a mixture of borosilicate glass, and a binder containing a ceramic-precursor resin. The resin is cured and is subsequently transformed into a ceramic by heat treatment or during first exposure of the coated part to high temperatures.
On applique sur une pièce à protéger une composition contenant un mélange de poudre de borure constituée majoritairement de TiB2, de poudre d'au moins un oxyde réfractaire vitreux constituée majoritairement d'un mélange borosilicaté, et d'un liant contenant une résine précurseur de céramique. La résine est réticulée et est ensuite transformée en céramique par traitement thermique ou lors d'une première exposition de la pièce en service à des températures élevées.
Diss Pascal
Lavasserie Eric
Laxague Michel
Thebault Jacques
Sim & Mcburney
Snecma Propulsion Solide
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