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:
Sep. 27, 1983
Filed:
Feb. 19, 1981
Tasadduq Khan, Jouy en Josas, FR;
Office National d'Etudes et de Recherches Aerospatiales (O.N.E.R.A.), Chatillon Sous Bagneux, FR;
Abstract
The invention relates to a process for increasing the lifetime of a refrary composite material piece comprising a metallic matrix and a reinforcing phase consisting of aligned monocrystalline fibers made of a metallic carbide, when the piece has suffered a plastic deformation in the direction of said fibers. The invention consists in restoring the initial qualities of the piece by subjecting it to a high temperature, inferior to the melting point of the material, more precisely at the temperature at which the piece resumes its initial length after being cooled at ambient temperature. The invention is particularly applicable to pieces forming turbine blades for aircrafts.