Preparation and electrical properties of carbon nanotubes dispersed zirconia nanocomposites

T. Ukai, T. Sekino, A. Hirvonen, N. Tanaka, T. Kusunose, T. Nakayama, K. Niihara

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)


Multi Wall Carbon Nanotubes (MWCNTs) with a diameter of 20-30 nm were used as a conductive phase to add electric conductivity to yttria stabilized tetragonal zirconia (3Y-TZP). Almost fully dense 3Y-TZP/MWCNTs nanocomposite was obtained by pressureless sintering under inert atmosphere and Hot Isostatic Pressing (HIP) treatment. The conductivity of the nanocomposites increased with increasing content of MWCNTs. Moreover, the fracture toughness increment of the composite was confirmed at 0.5 wt% addition. Scanning electron microscopy and transmission electron microscopy observation of the microstructures showed that MWCNTs were fairly homogeneously dispersed in the 3Y-TZP matrix.

Original languageEnglish
Pages (from-to)661-664
Number of pages4
JournalKey Engineering Materials
Publication statusPublished - 2006


  • Carbon nanotubes
  • Electrical property
  • Nanocomposite
  • Tetragonal zirconia
  • Toughning

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Preparation and electrical properties of carbon nanotubes dispersed zirconia nanocomposites'. Together they form a unique fingerprint.

Cite this