The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 25, 2018
Filed:
Mar. 07, 2012
Juliette Hugot, Jaunay-Clan, FR;
Mathieu Boidot, Toulouse, FR;
Daniel Monceau, Nailloux, FR;
Djar Oquab, Mons, FR;
Claude Estournes, Rieumes, FR;
Juliette Hugot, Jaunay-Clan, FR;
Mathieu Boidot, Toulouse, FR;
Daniel Monceau, Nailloux, FR;
Djar Oquab, Mons, FR;
Claude Estournes, Rieumes, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
Centre National De La Recherche Scientifique, Paris, FR;
Institut National Polytechnique de Toulouse, Toulouse, FR;
Université Paul-SABATIER Toulouse III, Toulouse, FR;
Abstract
A method for producing a thermal barrier in a multilayered system for protecting a metal part made of superalloy, by producing a thermal treatment by flash sintering protection materials in layers superposed on the metal part in an SPS machine enclosure. The layers contain, on a superalloy substrate, at least two layers of zirconium-based refractory ceramics. A metal part is produced according to a SPS flash sintering method and contains a superalloy substrate, a metal sub-layer, a TGO oxide layer and the thermal barrier formed by the method. A first ceramic is an inner ceramic designed to have a substantially higher expansion coefficient. An outer ceramic is designed to have at least lower thermal conductivity, and at least one of a sintering temperature or maximum operating temperature that is substantially higher. The thermal barrier has a composition and porosity gradient from the metal sub-layer to the outer ceramic.