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:
Mar. 07, 2006
Filed:
Jul. 11, 2002
Bruno Gilles François Boucard, Les Retinieres, FR;
Jean-paul Fournes, Dannemois, FR;
Frédéric Yves Pierre Jacquot, Chatellerault, FR;
Yann Philippe Jaslier, Melun, FR;
Jacques Louis Leger, Combs la Ville, FR;
André Hubert Louis Malie, Chatellerault, FR;
Guillaume Roger Pierre Oberlaender, Paris, FR;
Catherine Marie-hélène Richin, Roinville sous Dourdan, FR;
Bruno Gilles François Boucard, Les Retinieres, FR;
Jean-Paul Fournes, Dannemois, FR;
Frédéric Yves Pierre Jacquot, Chatellerault, FR;
Yann Philippe Jaslier, Melun, FR;
Jacques Louis Leger, Combs la Ville, FR;
André Hubert Louis Malie, Chatellerault, FR;
Guillaume Roger Pierre Oberlaender, Paris, FR;
Catherine Marie-Hélène Richin, Roinville sous Dourdan, FR;
Snecma Moteurs-Snecma Services, Paris, FR;
Abstract
A method of locally repairing parts coated with a thermal barrier including a ceramic outer layer and a metal underlayer of alumina-forming alloy for protecting the substrate against oxidation and for bonding with the ceramic outer layer, includes: defining the zone for repair with a mechanical mask adapted to the shape of the part and the zone for repair; scouring the zone for repair so as to remove the ceramic, the alumina layer, and the damaged portions of the underlayer; supplying materials for repairing the underlayer to the repair zone by subjecting the partially-scoured part to metal deposition by use of an electrical current; and subjecting the part to a heat treatment in order to enable the added metals to diffuse into the remaining underlayer in the repair zone for repair and to enable a surface film of alumina to form. After the underlayer has been reconstituted, the zone for repair is again defined by a mechanical mask and a new ceramic layer is deposited thereon.