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Improvement of the tribological behavior of PTFE-anodic film composites prepared on 1050 aluminum substrate

Escobar, Julien and Arurault, Laurent and Turq, Viviane Improvement of the tribological behavior of PTFE-anodic film composites prepared on 1050 aluminum substrate. (2012) Applied Surface Science, 258 (20). 8199-8208. ISSN 0169-4332

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Official URL: http://dx.doi.org/10.1016/j.apsusc.2012.05.022

Abstract

A model anodic film was prepared to incorporate PolyTetraFluoroEthylene (PTFE) nanoparticles into the porous structure of the film. Firstly, the influence of the anodization parameters on the morphology (thickness and pore diameter) was studied, using notably FEG scanning electronic microscopy. Then, using an improved sedimentation technique, the nanoparticles were successfully inserted into the porous structure and onto its surface. EDX and Raman spectroscopy attested the presence of PTFE particles down to the bottom of the pores. Secondly, the study demonstrated the benefit of incorporating the PTFE particles. Tribological tests were also carried out and the lubricating properties of the composite analyzed. Friction coefficient curves showed a 75 fold improvement of the total lifetime of the anodic film with a reduced friction coefficient.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF can be found at Applied Surface Science website: http://www.sciencedirect.com/science/article/pii/S0169433212008677
HAL Id:hal-00864926
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:23 Sep 2013 13:17

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