Patents Assigned to Societe Nationale d'Etude et de Construction de Moteurs d'Aviation “Snecma” and Snecma Services
  • Ceramic heat barrier coating having low thermal conductivity, and process for the deposition of said coating
    Patent number: 6432478
    Abstract: 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.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: August 13, 2002
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation “Snecma” and Snecma Services
    Inventors: Yann Philippe Jaslier, André Hubert Louis Malie, Jean-Pierre Julien Charles Huchin, Serge Alexandre Alperine, Romain Portal