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. 27, 2009
Filed:
Mar. 31, 2004
Marie-pierre Bacos, Antony, FR;
Pierre Josso, Issy les Moulineaux, FR;
Serge Naveos, Chatenay-Malabry, FR;
Marie-Pierre Bacos, Antony, FR;
Pierre Josso, Issy les Moulineaux, FR;
Serge Naveos, Chatenay-Malabry, FR;
ONERA (Office National d'Etudes et de Recherches Aerospatiales), Chatillon, FR;
SNECMA Moteurs, Paris, FR;
Abstract
This relates to an improvement to the process of aluminization or activated cementation in which a donor cement containing the aluminium is attacked at high temperature and in a neutral or reducing atmosphere by a gaseous ammonium halide to form a gaseous aluminium halide which decomposes on contact with a nickel-based substrate depositing aluminium metal thereon. According to the invention the aluminium halide is at least partly replaced by a zirconium halide leading to the inclusion of zirconium in the deposit. Improvement in the protection of the hot parts of aircraft engines made of nickel-based superalloy. No figure is to be published.