Temperature Dependence of the Hardness of Nanocrystalline Titanium Dioxide

Mohamed Guermazi, H. Jurgen Höfler, Horst Hahn, Robert S. Averback

Research output: Contribution to journalArticlepeer-review


Vickers hardness of nanocrystalline (N‐) TiO2 was measured in the temperature range 25° to 1200°C and it was compared with that of polycrystalline (P‐) TiO2 in the same temperature range. N‐TiO2 showed a lower hardness than P‐TiO2 at temperatures up to 800°C which resulted in the lack of indentation crack traces for N‐TiO2 presumably implying more plasticity.

Original languageEnglish (US)
Pages (from-to)2672-2674
Number of pages3
JournalJournal of the American Ceramic Society
Issue number10
StatePublished - Oct 1991


  • fracture toughness
  • hardness
  • nanocrystalline
  • polycrystalline materials
  • titania

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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