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:
Jan. 27, 2015
Filed:
Dec. 23, 2009
Emilie Courcot, Pessac, FR;
Francis Rebillat, Merignac, FR;
Caroline Louchet-pouillerie, Arsac, FR;
Henri Tawil, Le Bouscat, FR;
Emilie Courcot, Pessac, FR;
Francis Rebillat, Merignac, FR;
Caroline Louchet-Pouillerie, Arsac, FR;
Henri Tawil, Le Bouscat, FR;
Herakles, Le Haillan, FR;
Universite de Bordeaux 1, Talence, FR;
Abstract
In order to protect a substrate having at least a portion adjacent to a surface that is made of a refractory material containing silicon, while the substrate is in use at high temperature in a medium that is oxidizing and wet, there is formed on the surface of the substrate an environmental barrier that contains no boron and that has at least one layer that is essentially constituted by a system of oxides formed by at least one rare earth oxide, silica, and alumina, and that is capable of self-healing by maintaining the presence of at least one solid phase in a temperature range extending up to at least 1400° C. approximately.