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Societe Nationale D'etude Et De Construction De Monteurs D'aviation S.n.e.c.m.a. and Snecma Services

Romain Portal

Yann Philippe Jaslier

Serge Alexandre Alperine

Andr&eacute; Hubert Louis Malie

Jean-Pierre Julien Charles Huchin

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 vapor 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.

Ceramic heat barrier coating having low thermal conductivity, and process for the deposition of said coating

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.

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Evry, France

Romain Portal