Electrically conductive alumina–carbon nanocomposites prepared by Spark Plasma Sintering

Inam, Fawad, Yan, Haixue, Jayaseelan, Daniel, Peijs, Ton and Reece, Michael (2010) Electrically conductive alumina–carbon nanocomposites prepared by Spark Plasma Sintering. Journal of the European Ceramic Society, 30 (2). pp. 153-157. ISSN 0955-2219

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Official URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2009.05.0...

Abstract

Carbon nanotubes (CNTs) and carbon black were added to alumina to convert it into a good electrical conductor. Alumina–CNT and alumina–carbon black nanocomposites were fabricated by Spark Plasma Sintering (SPS). The electrical conductivity of alumina–CNT nanocomposites was found to be four times higher as compared to alumina–carbon black nanocomposites due to the fibrous nature and high aspect ratio of CNTs. The electrical conductivity of alumina–CNT nanocomposite increased with increasing grain size due to increasing density of CNTs at the grain boundaries. This effect was not observed for alumina–carbon black nanocomposite due to the particulate geometry of the carbon black.

Item Type: Article
Additional Information: Electroceramics XI Special Issue.
Uncontrolled Keywords: Nanocomposites, electrical conductivity, Al2O3, Carbon, Spark Plasma Sintering (SPS)
Subjects: F200 Materials Science
H300 Mechanical Engineering
H600 Electronic and Electrical Engineering
J300 Ceramics and Glasses
Department: Faculties > Engineering and Environment > Mechanical and Construction Engineering
Depositing User: Fawad Inam
Date Deposited: 23 May 2013 10:38
Last Modified: 10 Aug 2015 11:23
URI: http://nrl.northumbria.ac.uk/id/eprint/12674

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