CERAMIC COATING WITH LOW THERMAL CONDUCTIVITY AND THERMAL BARRIER TYPE, METHOD FOR DEPOSITING SUCH A CERAMIC COATING, AND METAL PART PROTECTED BY THIS CERAMIC COATING

摘要

The ceramic coating of the thermal barrier type comprises, in thickness, a columnar growth pattern interrupted and repeated several times by successive regermination of the ceramic deposit. Regermination is obtained by a vapor deposition process in which a polluting gas is introduced intermittently during the deposition of the ceramic. The ceramic coating obtained has a lower thermal conductivity than conventional columnar ceramic coatings.