Title:
METHOD FOR PRODUCING A METAL SUBLAYER MADE FROM PLATINUM ON A METAL SUBSTRATE
Document Type and Number:
WIPO Patent Application WO/2015/007983
Kind Code:
A3
Abstract:
The invention concerns a method for producing a metal sublayer made from platinum on a metal substrate. Characteristically, the method comprises the following steps: a) providing a metal part forming the substrate (100), b) providing an electrolyte bath formed from an ionic liquid medium with one or a plurality of aluminium salts, c) depositing a first layer of a first metal (120) on the substrate (100) in such a way as to obtain a substrate coated with the first metal layer (100+120), d) depositing a second layer of a second metal on the first layer, in such a way as to obtain a substrate coated with the first metal layer and the second metal layer, in which one of the first metal and the second metal is a metal from the platinum group (platinoid) and the other of the first metal and the second metal is aluminium deposited by electrodeposition with said electrolyte bath formed from an ionic liquid medium, and the aluminium layer (130) has a thickness of between 10 and 50 μm. Application to a turbomachine part.
Inventors:
HUGOT JULIETTE (FR)
MOLET HERVÉ (FR)
MOLET HERVÉ (FR)
Application Number:
PCT/FR2014/051795
Publication Date:
April 09, 2015
Filing Date:
July 11, 2014
Export Citation:
Assignee:
SNECMA (FR)
International Classes:
C25D3/66; C25D5/10; C25D5/50; C25D7/10; C25D3/44; C25D3/50
Foreign References:
| EP2465977A1 | 2012-06-20 | |||
| EP2481836A1 | 2012-08-01 | |||
| CN101643902A | 2010-02-10 | |||
| EP0784104A1 | 1997-07-16 |
Other References:
ABBOTT A P ET AL: "ELECTRODEPOSITION OF ALUMINIUM AND ALUMINIUM/PLATINUM ALLOYS FROM ALCL3/BENZYLTRIMETHYLAMMONIUM CHLORIDE ROOM TEMPERATURE IONIC LIQUIDS", JOURNAL OF APPLIED ELECTROCHEMISTRY, SPRINGER, DORDRECHT, NL, vol. 31, no. 12, 1 December 2001 (2001-12-01), pages 1345 - 1350, XP001114897, ISSN: 0021-891X, DOI: 10.1023/A:1013800721923
Attorney, Agent or Firm:
HENRICH, Christel et al. (158 Rue de l'Université, Paris Cedex 07, FR)
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