Patents by Inventor Serge Alexandre Alperine

Serge Alexandre Alperine has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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
  • Method of improving oxidation and corrosion resistance of a superalloy article, and a superalloy article obtained by the method
    Patent number: 6332937
    Abstract: A method of improving the oxidation and corrosion resistance of a superalloy article comprises providing a superalloy substrate having a sulphur content which is less than 0.8 ppm by weight, and depositing on the substrate a protective antioxidation coating having a sulphur content also less than 0.8 ppm by weight. A heat barrier layer may also be provided by depositing on the protective anti-oxidation coating a ceramic coating of columnar structure.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: December 25, 2001
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation “Snecma”
    Inventors: Yann Jaslier, Serge Alexandre Alperine, Jacques Louis Leger
  • Low thermal conductivity heat barrier coating, a metal article having such a coating, and a process for depositing the coating
    Patent number: 6312832
    Abstract: A low thermal conductivity heat barrier coating deposited on a superalloy substrate is characterised in that it comprises a homogeneous mixture of oxides and has a composition containing a zirconia base, a zirconia-stabilizing oxide, and from 0.5 to 12 weight % of an additional metal element selected from nickel, cobalt, iron and mixtures thereof. The additional metal element may be added in an oxidised form, and the coating may also contain from 0.01 to 1 weight % of carbon.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: November 6, 2001
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation “Snecma”
    Inventors: Serge Alexandre Alperine, Serge Gerzdev, Yann Philippe Jaslier, Yuri Tamarine
  • Ceramic heat barrier coating having low thermal conductivity, and process for the deposition of said coating
    Publication number: 20010008708
    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 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.
    Type: Application
    Filed: January 12, 2001
    Publication date: July 19, 2001
    Applicant: SOCIETE NATIONAL D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION "SNECMA"
    Inventors: Yann Philippe Jaslier, Andre Hubert Louis Malie, Jean-Pierre Julien Charles Huchin, Serge Alexandre Alperine, Romain Portal
  • Ceramic heat barrier coating having low thermal conductivity, and process for the deposition of said coating
    Patent number: 6251504
    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 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.
    Type: Grant
    Filed: June 3, 1999
    Date of Patent: June 26, 2001
    Assignee: Societe Nationale d'Etude et de Construction de Monteurs d'Aviation S.N.E.C.M.A. and Snecma Services
    Inventors: Yann Philippe Jaslier, André Hubert Louis Malie, Jean-Pierre Julien Charles Huchin, Serge Alexandre Alperine, Romain Portal
  • Method of improving oxidation and corrosion resistance of a superalloy article, and a superalloy article obtained by the method
    Patent number: 6228513
    Abstract: A method of improving the oxidation and corrosion resistance of a superalloy article comprises providing a superalloy substrate having a sulphur content which is less than 0.8 ppm by weight, and depositing on the substrate a protective antioxidation coating having a sulphur content also less than 0.8 ppm by weight. A heat barrier layer may also be provided by depositing on the protective anti-oxidation coating a ceramic coating of columnar structure.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: May 8, 2001
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation “SNECMA”
    Inventors: Yann Jaslier, Serge Alexandre Alperine, Jacques Louis Leger
  • Thermal barrier coating with improved sub-layer and parts coated with said thermal barrier
    Patent number: 5843585
    Abstract: A thermal barrier coating for a superalloy part used, in particular, in turbomachines comprises a ceramic coating and a sub-layer interposed between the superalloy substrate and the ceramic coating, the sub-layer being composed of a nickel and/or cobalt aluminide containing at least one platinum-like metal and at least one metal for promoting the formation of a layer of oxide constituted by the alpha-allotropic variety of alumina.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: December 1, 1998
    Assignees: Societe Nationale D'Etude et de Construction de Moteurs D'Aviation "Snecma", Societe Sochata, Office National d'Etudes et de Recherche Aerospatiales (ONERA)
    Inventors: Serge Alexandre Alperine, Jean-Paul Fournes, Pierre Josso, Jacques Louis Leger, Andre Hubert Louis Malie, Denis Georges Manesse