C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 41/88 (2006.01) C04B 41/50 (2006.01) C04B 41/52 (2006.01) C04B 41/87 (2006.01) C04B 41/89 (2006.01) C23C 4/08 (2006.01) C23C 4/18 (2006.01) C23C 24/10 (2006.01) C23C 26/00 (2006.01) C23C 26/02 (2006.01)
Patent
CA 2162028
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.
Un revêtement de protection anti-oxydation est formé au moins à la surface du matériau et comprend une phase réfractaire qui est formée principalement du siliciure réfractaire Ti(0,4-0,95)Mo(0,6-0,05)Si2 et qui présente une microstructure ramifiée formant une armature au sein de laquelle est répartie une phase cicatrisante constituée par un eutectique qui est formé principalement de silicium non lié, de siliciure Ti(0,4-0,95)Mo(0,6-0,05)Si2 et d'au moins le disiliciure TiSi2. Le revêtement est obtenu à partir d'un mélange de poudres déposé à la surface du matériau et soumis à un traitement thermique sous atmosphère neutre.
Bogachkova Olga Petrovna
Goriatcheva Elena Valentinovna
Terentieva Valentina Sergeevna
Sim & Mcburney
Societe Europeenne de Propulsion
Societe Nationale D'etude Et de Construction de Moteurs D'aviati
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