Electrical and thermal conductivities of aluminum-based composites containing multi-walled carbon nanotubes

S. E. Shin, H. J. Choi, D. H. Bae

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26 Citations (Scopus)


Aluminum-based composites containing multi-walled carbon nanotubes are produced by a powder metallurgy route involving a ball-milling technique. Effects of processing parameters on the dispersion of multi-walled carbon nanotubes and resulting properties are investigated. Multi-walled carbon nanotubes, initially located on the powder surface with maintaining their connectivity, become dispersed individually and embedded progressively in the aluminum powder during a milling process. The composite with individually dispersed multi-walled carbon nanotubes shows a good strength but poor electrical and thermal conductivities. On the other hand, the composite with a network structure of MWCNTs reveals much enhanced electrical conductivity of 3.316 × 107 Sm-1 and thermal conductivity of 172 W/m K.

Original languageEnglish
Pages (from-to)2249-2256
Number of pages8
JournalJournal of Composite Materials
Issue number18
Publication statusPublished - 2013 Aug

Bibliographical note

Funding Information:
This research was supported by the Korea Science and Engineering Foundation Grant (No. 2010-0016139) and the Second Stage of Brain Korea 21 Project in 2010.

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Chemistry


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