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:
Jun. 29, 2021
Filed:
Mar. 29, 2012
Alain Couret, Saverdun, FR;
Jean-philippe Monchoux, Toulouse, FR;
Lise Durand, Toulouse, FR;
Houria Jabbar, Toulouse, FR;
Thomas Voisin, Toulouse, FR;
Alain Couret, Saverdun, FR;
Jean-Philippe Monchoux, Toulouse, FR;
Lise Durand, Toulouse, FR;
Houria Jabbar, Toulouse, FR;
Thomas Voisin, Toulouse, FR;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
Abstract
The invention relates to a method for manufacturing a metal, ceramic, or composite part (PF) by flash sintering, which comprises simultaneously applying, inside a die (M), a uniaxial pressure and an electric current to a device containing a powder constituent material, said uniaxial pressure being applied by means of at least two pistons (P, P) which slide toward one another inside said die and each of which has a bearing surface (F, F) contacting said material, said bearing surfaces engaging so as to define the shape of the part to be manufactured, characterised in that: said part has a complex shape, including at least one first slender portion (V), such as a rod, plate, bevel, or shell, and a second portion (B), such as a base, plinth, or solid part, which is not slender in the slender direction of said first portion, and in that said uniaxial pressure is applied in a direction (z) substantially parallel to the smallest dimension of said first portion of the part, or to one of the two smallest dimensions thereof if said part is a rod. The invention also relates to a device for implementing such a method, and to a turbine blade made of a TiAl intermetallic alloy or a metal/silicide composite sintered by flash sintering.