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:
Feb. 13, 2024
Filed:
May. 15, 2019
Safran, Paris, FR;
Safran Ceramics, Le Haillan, FR;
Safran Aircraft Engines, Paris, FR;
Michaël Podgorski, Moissy-Cramayel, FR;
Bruno Jacques Gérard Dambrine, Moissy-Cramayel, FR;
Emilie Chantal Gisèle Mendez, Moissy-Cramayel, FR;
Wen Zhang, Moissy-Cramayel, FR;
Yvan Rappart, Moissy-Cramayel, FR;
Charles Leleu, Moissy-Cramayel, FR;
Abstract
A process for manufacturing a part made of a ceramic matrix composite material, includes coating an outer surface of a porous preform with a layer of a fugitive material to form a model of the part to be obtained, the fugitive material being wax or resin, the fugitive material layer in the model not exceeding the highest peak of surface undulations of the preform, and ceramic and/or carbon particles being present in the porosity of the preform, coating the model formed with a ceramic powder composition, heat treating the coated model to remove the fugitive material and form a ceramic shell mold by sintering of the ceramic powder composition, introducing a molten composition including silicon into the shell mold to obtain the part in the shell mold, the molten composition infiltrating the porosity of the preform to form the ceramic matrix, and separating the shell mold from the part obtained.