Çelik, Yasemin and Çelik, Ali and Flahaut, Emmanuel and Suvacı, Ender Anisotropic mechanical and functional properties of graphene-based alumina matrix nanocomposites. (2016) Journal of the European Ceramic Society, 36 (8). 2075-2086. ISSN 0955-2219
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(Document in English)
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Official URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2016.02.032
Abstract
Graphene platelets (GPLs) containing Al2O3 nanocomposites, which exhibit anisotropic microstructure,have been prepared by spark plasma sintering (SPS), and effects of this anisotropy on mechanical, elec-trical and thermal properties of the nanocomposites have been investigated. 3 vol.% GPLs addition intomonolithic Al2O3caused fracture toughness (Kıc) to increase by 26.7% in the in-plane direction and todecrease by 17.2% in the through thickness direction. Kıcstarted to decrease in the in-plane direction andto increase in the through-thickness direction with further increase in the GPLs amount. The electricalconductivity of the nanocomposites exhibited a slight anisotropy with a lower resistivity in the in-planedirection. Oriented GPLs also led to a less resistive heat conduction path in the in-plane direction. ∼44%increase in the in-plane thermal conductivity was achieved at 600◦C with 15 vol.% GPLs addition into themonolithic Al2O3and this resulted in ∼52% increase in the kin-plane/kthrough-thicknessratio.
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 of the article can be found at Journal of the European Ceramic Society website : http://www.sciencedirect.com/science/journal/09552219 |
HAL Id: | hal-01451008 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | Other partners > Anadolu University (TURKEY) 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: | |
Funders: | Anadolu University Scientific Research Projects Commission (TURKEY) |
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Deposited On: | 31 Jan 2017 09:06 |
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