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The preparation of carbon nanotube (CNT)/copper composites and the effect of the number of CNT walls on their hardness, friction and wear properties

Guiderdoni, Christophe and Pavlenko, Ekaterina and Turq, Viviane and Weibel, Alicia and Puech, Pascal and Estournès, Claude and Peigney, Alain and Bacsa, Wolfgang and Laurent, Christophe The preparation of carbon nanotube (CNT)/copper composites and the effect of the number of CNT walls on their hardness, friction and wear properties. (2013) Carbon, 58. 185-197. ISSN 0008-6223

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Official URL: http://dx.doi.org/10.1016/j.carbon.2013.02.049

Abstract

Carbon nanotubes with 2, 3, 8 and 20 walls are mixed with a copper powder (micrometer sized) and consolidated by spark plasma sintering. The microhardness of resulting composites is found to be over 50% higher than that for Cu and the friction coefficient against a steel ball is decreased by a factor of 3-4 while the wear and wear rate are reduced by a factor of 10-20. Raman maps of selected specimens outside and inside the worn surface show that double-wall carbon nanotubes remain intact. The reasons for the effect of the number of walls and carbon content are discussed.

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 Carbon website: http://www.sciencedirect.com/science/article/pii/S0008622313001905
HAL Id:hal-00869492
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:03 Oct 2013 12:29

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