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:
Oct. 31, 2017
Filed:
Nov. 27, 2012
Applicants:
Herakles, Le Haillan, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Inventors:
Stephane Mazerat, Louvroil, FR;
Rene Pailler, Cestas, FR;
Sylvie Loison, Saint Medard en Jalles, FR;
Eric Philippe, Merignac, FR;
Assignees:
HERAKLES, Le Haillan, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 16/00 (2006.01); C04B 41/45 (2006.01); C04B 35/565 (2006.01); C04B 35/628 (2006.01); C04B 35/80 (2006.01); B29B 15/10 (2006.01); D06M 11/68 (2006.01); B29B 15/08 (2006.01); B29B 11/16 (2006.01);
U.S. Cl.
CPC ...
C04B 41/4556 (2013.01); B29B 15/08 (2013.01); B29B 15/10 (2013.01); C04B 35/565 (2013.01); C04B 35/62844 (2013.01); C04B 35/62873 (2013.01); C04B 35/62881 (2013.01); C04B 35/62884 (2013.01); C04B 35/62894 (2013.01); C04B 35/62897 (2013.01); C04B 35/806 (2013.01); D06M 11/68 (2013.01); B29B 11/16 (2013.01); C04B 2235/447 (2013.01); C04B 2235/5244 (2013.01); C04B 2235/614 (2013.01); C04B 2235/9684 (2013.01); Y10T 428/292 (2015.01); Y10T 442/2008 (2015.04);
Abstract
A method of treating silicon carbide fibers comprises phosphating heat treatment in a reactive gas so as to form a coating around each fiber for protection against oxidation. The coating comprises a surface layer of silicon pyrophosphate crystals and at least one underlying bilayer system comprising a layer of a phosphosilicate glass and a layer of microporous carbon.