Weibel, Alicia and Peigney, Alain and Chevallier, Geoffroy and Estournès, Claude and Laurent, Christophe Toughened carbon nanotube-iron-mullite composites prepared by spark plasma sintering. (2013) Ceramics International, 39 (5). 5513-5519. ISSN 0272-8842
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(Document in English)
PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader 12MB |
Official URL: http://dx.doi.org/10.1016/j.ceramint.2012.12.063
Abstract
Carbon nanotube-iron mullite nanocomposite powders were prepared by a direct method involing a reduction in H2-CH4 and without any mechanical mixing step. The carbon nanotubes are mostly double-andfew-walled (3-6walls). Some carbon nanofibers are also observed. The materials were consolidated by spark plasmas intering. Their electrical conductivity is 2.4S/cm where as pure mullite is insulating. There is no increase in fracture strength, but the SENB toughness is twice than the one for unreinforced mullite(3.3vs.1.6 MPam½). The mechanisms of carbon nanotube bundle pull out and large-scale crack-bridging have been evidenced.
Item Type: | Article |
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Additional Information: | Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF can be found at Ceramics International website: http://www.sciencedirect.com/science/article/pii/S0272884212014241/science/article/pii/S0272884212014241 |
HAL Id: | hal-00864749 |
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 - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) |
Laboratory name: | |
Statistics: | download |
Deposited On: | 23 Sep 2013 09:11 |
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