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Philippe Perruchaut

Didier Ribot

Claude Marcel Mons

Frédéric Braillard

Christian Coddet

Christelle Foucher

Philippe Le Biez

Pierre Bertrand

Karim Larabi

Joel Vigneau

Joël Vigneau

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.

Powder mixture suitable for sintering to form a self-lubricating solid material

A powder material for forming an abradable coating, the material comprising a metal powder based for the most part on aluminum and containing manganese or calcium. The material is applicable to seals of a turbomachine.

Powder material for an abradable seal

A material that can be worn away by abrasion, and a method of making the same, includes a substantially oxide free metal alloy based on nickel or cobalt or a ceramic. The material further includes at least one of particles of solid lubricant, closed pores, or surface recesses. The material can be used to make parts, in particular plates, and casings, the inner surface of which is at least partially covered with plates of this material.

Metallic material that can be worn away by abrasion; parts, casings, and a process for producing said material

Dry self-lubricating dense material; a mechanical part formed from said material; a method of manufacturing said material

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Pau, France

Philippe Perruchaut