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Revêtement anti-usure déposé par projection plasma sur matériaux composites fibres de carbones/matrice époxy pour applications aéronautiques

Abstract : Carbon fiber reinforced polymers (CFRP) are increasingly used in aircraft structures, due to their good strength to weight ratio. However, they are more sensitive to the impacts of solid and liquid particles, occurring during the aircraft flight cycle, and thus need to be protected. This work focuses on the protection of carbon fiber reinforced epoxy by air plasma spraying (APS). Numerous studies have been conducted on applying such coatings, but the obtained metallic and ceramic coatings show poor adhesion strength, and the underlying composite material is damaged by the APS process. This PhD is organized around two objectives:- Fundamental objective: understand the interactions between molten particles and the composite. A multi-scale study of droplets impacts on the composite led to identify the epoxy resin as responsible for the poor adhesion strength of air plasma sprayed coatings on CFRPs.- Experimental objective: determine the feasibility of producing an anti-wear coating by plasma spraying on CFRP. Two surface treatments prior to APS were chosen and tested in single particles impacts and coating formation. Alumina coatings have been obtained, without thermal or mechanical degradation of the underlying composite.
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https://theses.hal.science/tel-01486564
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Submitted on : Monday, March 13, 2017 - 4:34:26 PM
Last modification on : Saturday, October 22, 2022 - 5:48:17 AM
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  • HAL Id : tel-01486564, version 2

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Axelle Elrikh. Revêtement anti-usure déposé par projection plasma sur matériaux composites fibres de carbones/matrice époxy pour applications aéronautiques. Autre. Université de Limoges; University of Limerick, 2016. Français. ⟨NNT : 2016LIMO0131⟩. ⟨tel-01486564v2⟩

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