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Multi-walled carbon nanotube–Al2O3 composites: Covalent or non-covalent functionalization for mechanical reinforcement

Kasperski, Anne and Weibel, Alicia and Estournès, Claude and Laurent, Christophe and Peigney, Alain Multi-walled carbon nanotube–Al2O3 composites: Covalent or non-covalent functionalization for mechanical reinforcement. (2014) Scripta Materialia, 75. 46-49. ISSN 1359-6462

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Official URL: http://dx.doi.org/10.1016/j.scriptamat.2013.11.015

Abstract

Multi-walled carbon nanotube–Al2O3 composites are prepared using carbon nanotubes (8 walls, 1.5 lm long or 20 walls, 10 lm long) previously submitted to either covalent or non-covalent functionalization. High-energy sonication mixing, freeze-drying and spark plasma sintering lead to dense composites. The shorter CNTs are better dispersed than the longer ones, whatever the functionalization. Crack-bridging by CNTs is evidenced only when non-covalent functionalization is used and is correlated with a high fracture toughness for composites with the longer CNTs.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com/science/article/pii/S1359646213005721
HAL Id:hal-01130694
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:12 Mar 2015 10:22

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