Nano Archive

Temperature dependence of the electrical conductivity of epoxy/expanded graphite nanosheet composites

Jovic, N and Dudic, D and Montone, A and Antisari, M. Vittori and Mitric, M and Djokovic, V (2008) Temperature dependence of the electrical conductivity of epoxy/expanded graphite nanosheet composites. SCRIPTA MATERIALIA, 58 (10). pp. 846-849.

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Official URL: http://www.scriptamat.org/article/S1359-6462(08)00...

Abstract

The electrical conductivity of composites obtained by mixing epoxy resin and expanded graphite (EG) nanosheets has been investigated. Conductivity changes of up to I I orders of magnitude were observed as the filler load increased from 0 to 8 wt.%, while the percolation threshold was around 3 wt.%. It was also shown that epoxy/EG composites with intermediate filler contents exhibit a ``phase transition'' from predominantly ``contact conductivity'' to ``tunneling conductivity'' during heating from room temperature to 120 degrees C. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Item Type:Article
Uncontrolled Keywords:electrical resistivity/conductivity; scanning electron microscopy (SEM); polymer matrix composites; nanocomposite; electrical properties
Subjects:Physical Science > Nanophysics
Physical Science > Nanoelectronics
Material Science > Nanochemistry
Material Science > Nanostructured materials
ID Code:1360
Deposited By:Anuj Seth
Deposited On:09 Dec 2008 12:56
Last Modified:19 Feb 2009 18:07

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