The homogeneous dispersion of surfactantless, slightly disordered, crystalline, multiwalled carbon nanotubes in α-alumina ceramics for structural reinforcement

Mehdi Estili, Akira Kawasaki, Hiroki Sakamoto, Yutaka Mekuchi, Masaki Kuno, Takayuki Tsukada

Research output: Contribution to journalArticlepeer-review

96 Citations (Scopus)

Abstract

Surfactantless, hydrophilic, slightly disordered, crystalline, multiwalled carbon nanotubes (CNTs) were successfully prepared and then homogeneously and individually incorporated in an α-alumina ceramic by a recently established powder technology to investigate their load-carrying and reinforcing capabilities. As predicted, considerable structural reinforcement was obtained after spark plasma sintering, and microstructural characterizations can experimentally prove the effectiveness of the ability of these CNTs to reinforce the alumina ceramic matrix. Reinforcement mechanisms are thoroughly discussed in terms of microstructural characterizations.

Original languageEnglish
Pages (from-to)4070-4079
Number of pages10
JournalActa Materialia
Volume56
Issue number15
DOIs
Publication statusPublished - 2008 Sep 1

Keywords

  • Carbon nanotubes
  • Ceramic matrix composites (CMC)
  • Ceramics
  • Nanocomposite
  • Powder processing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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