Electrically conductive alumina–carbon nanocomposites prepared by Spark Plasma Sintering

Fawad Inam, Haixue Yan, Daniel Jayaseelan, Ton Peijs, Michael Reece

Research output: Contribution to journalArticlepeer-review

94 Citations (Scopus)

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.
Original languageEnglish
Pages (from-to)153-157
JournalJournal of the European Ceramic Society
Volume30
Issue number2
DOIs
Publication statusPublished - Jan 2010

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