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. 29, 2024
Filed:
Jun. 20, 2019
Safran Aircraft Engines, Paris, FR;
Centre National DE LA Recherche Scientifique, Paris, FR;
Universite Paul Sabatier—toulouse Iii, Toulouse, FR;
Serge Georges Vladimir Selezneff, Moissy-Cramayel, FR;
Philippe Charles Alain Le Biez, Moissy-Cramayel, FR;
Arnaud Louis Gabriel Fregeac, Moissy-Cramayel, FR;
Florence Ansart, Labege, FR;
Claude Gilbert Jean-Pierre Estournes, Rieumes, FR;
SAFRAN AIRCRAFT ENGINES, Paris, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
UNIVERSITE PAUL SABATIER—TOULOUSE III, Toulouse, FR;
Abstract
A process for manufacturing an abradable layer, includes compressing a powder composition including at least micrometric ceramic particles having a number-average form factor greater than or equal to 3, a mass content of said micrometric ceramic particles in the powder composition being greater than or equal to 85%, the form factor of a particle being defined as the ratio [largest dimension of the particle]/[largest cross-sectional dimension of the particle], and sintering the powder composition thus compressed to obtain the abradable layer, wherein a temperature imposed during sintering, the sintering time and the compression pressure applied are selected so as to obtain a volume porosity rate of the abradable layer greater than or equal to 20%.