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:
Nov. 22, 2022
Filed:
Dec. 29, 2017
Safran Ceramics, Le Haillan, FR;
Centre National DE LA Recherche Scientifique (Cnrs), Paris, FR;
Universite DE Bordeaux, Bordeaux, FR;
Lisa Pin, Moissy-Cramayel, FR;
Simon Arnal, Bordeaux, FR;
Francis Rebillat, Pessac, FR;
Fabrice Mauvy, Canejan, FR;
SAFRAN CERAMICS, Le Haillan, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS), Paris, FR;
UNIVERSITE DE BORDEAUX, Bordeaux, FR;
Abstract
A part includes a substrate having, adjacent to a surface of the substrate, at least a portion that is made of a material that contains silicon, and an environmental barrier formed on the surface of the substrate, the environmental barrier including a first layer including at least one first rare earth silicate and presenting grains with a mean size less than or equal to 1 μm; and a second layer covering the first layer, the second layer including at least one rare earth silicate and presenting grains with a mean size greater than 1 μm.