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. 19, 2010
Filed:
Jan. 11, 2006
Frederic Braillard, Chatellerault, FR;
Christelle Foucher, Acigne, FR;
Philippe Perruchaut, Pau, FR;
Frederic Braillard, Chatellerault, FR;
Christelle Foucher, Acigne, FR;
Philippe Perruchaut, Pau, FR;
SNECMA, Paris, FR;
SNECMA Services, Paris, FR;
Abstract
The invention relates to a novel self-lubricating solid material; to a method of preparing such a material from a powder mixture; to said powder mixture; and to mechanical parts made of said novel material. Said powder mixture comprises a powder of a metal alloy that is a precursor for the matrix of said material, particles of a first solid lubricant such as CeFthat are for insertion in said matrix without reacting with said metal alloy, and particles of a second solid lubricant such as WSor MoSfor reacting with a component of said metal alloy during sintering of the powder to form a lubricating phase. Said material can be used for fabricating a bushing that is to receive a root of a variable-pitch vane of an airplane turbojet compressor.