Snecma

Safran Aircraft Engines

Onera

Annie Pasquet

Claude Marcel Mons

Jérôme Brossier

Justine Menuey

Pierre J Josso

Marie-Pierre Bacos

Andre Hubert Malie

Sarah Hamadi

Pascal Fabrice Bilhe

Serge Naveos

Marie Pierre Bacos

Marie-Ange Boheas

Yannick Cadoret

Samuel Hervier

An estimation method for estimating thickness of a ceramic thermal barrier coating that is to be deposited by physical vapor deposition from at least one target and onto a gas turbine hot part mounted on a support tooling, the method including: digitally modeling a geometrical shape of the hot part and its movements relative to the target; representing the modeled hot part as a surface mesh; and estimating, for at least one mesh element of the hot part exposed to the radiation from the target during deposition of the coating, a coating thickness to be deposited on the mesh element at a given instant by using a radiation model modeling radiation from the target and taking account of the position of the mesh element at that given instant relative to the target.

Method and device for estimating a thickness of a ceramic thermal barrier coating

A method for assembling two blades of a turbomachine nozzle, includes positioning a first surface of a first blade and a second surface of a second blade facing one another, the first and second surfaces being spaced apart from one another by an assembly clearance, and vapor phase aluminizing the first and second surfaces so as to fill the assembly clearance.

Method for assembling two blades of a turbomachine nozzle

A method for forming a protective coating containing aluminum and zirconium on the surface of a metal part. The part is put into contact with a cement made of aluminum alloy, at a treatment temperature, with an atmosphere containing an active gas which reacts with the cement to form a gaseous aluminum halide, which decomposes in contact with the part depositing metallic aluminum thereon, the active gas containing ZrOClthat decomposes in contact with the part depositing Zr metal thereon, and being formed by vaporizing granules of ZrOClthat are solid at ambient temperature. The part, the cement, and ZrOClgranules are then progressively heated together in a chamber from ambient temperature to the treatment temperature with a plateau at 400&#xb0; C.&#xb1;200&#xb0; C.

Method for forming a protective coating containing aluminium and zirconium on a metal part

A method for forming a protective coating containing aluminum on the surface of a metal part, wherein the part is contacted with a carburizer made of an aluminum alloy, at a treatment temperature and in a chamber, the atmosphere of which contains an active gas which reacts with the carburizer to form a gaseous aluminum halide, which decomposes upon contacting the part while depositing aluminum metal thereon. In the method the aluminum alloy of the carburizer includes at least one element, zirconium and/or hafnium, the active gas reacting with the carburizer to also form a halide of the reactive element which decomposes upon contacting the part while depositing the element thereon at the same time as the aluminum.

Method for forming a protective coating containing aluminum on the surface of a metal part

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Longjumeau, France

Annie Pasquet