C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 14/08 (2006.01) F02C 7/00 (2006.01)
Patent
CA 2273598
A ceramic heat barrier coating is deposited on a substrate so that the coating has a columnar growth pattern which is interrupted and repeated a number of times throughout its thickness by successive regermination of the ceramic deposit. The regermination is obtained by a vapour phase deposition process wherein a polluting gas is introduced intermittently during the deposition of the ceramic. The resulting ceramic coating has a lower thermal conductivity than conventional columnar ceramic coatings.
Le revêtement céramique de type barrière thermique comporte, en épaisseur, un motif de croissance colonnaire interrompu et répété plusieurs fois par regermination successive du dépôt de céramique. La regermination est obtenue par un procédé de dépôt en phase vapeur dans lequel un gaz polluant est introduit de façon intermittente pendant le dépôt de la céramique. Le revêtement céramique obtenu comporte une conductivité thermique plus faible que les revêtements céramiques colonnaires classiques.
Alperine Serge Alexandre
Huchin Jean-Pierre Julien Charles
Jaslier Yann Philippe
Malie Andre Hubert Louis
Portal Romain
Goudreau Gage Dubuc
Snecma
Snecma Services
Societe Nationale D'etude Et de Construction de Moteurs D'aviati
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