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. 10, 1991
Filed:
Apr. 27, 1989
Applicant:
Inventors:
Louis Heraud, Bordeaux, FR;
Joelle Lalande, Bordeaux, FR;
Assignee:
Societe Europeenne de Propulsion, Suresnes, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; C04B / ;
U.S. Cl.
CPC ...
427264 ; 427204 ; 427309 ; 501 35 ; 501 90 ;
Abstract
The process comprises the steps of forming a fibrous reinforcement with silicium carbide fibers, forming on the fibers an intermediate coating designed to constitute an interface between the fibers and a matrix, and forming a matrix in ceramic material within the residual porosity of the fibrous reinforcement. In a step prior to the formation of the intermediate coating, a treatment is carried out by the chemical route for the elimination of the silica present on the surface of the silicium carbide fibers.