Temperature Dependence of the Hardness of Nanocrystalline Titanium Dioxide

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

doi:10.1111/j.1151-2916.1991.tb06819.x

Temperature Dependence of the Hardness of Nanocrystalline Titanium Dioxide

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

Research output: Contribution to journal › Article › peer-review

Abstract

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 language	English (US)
Pages (from-to)	2672-2674
Number of pages	3
Journal	Journal of the American Ceramic Society
Volume	74
Issue number	10
DOIs	https://doi.org/10.1111/j.1151-2916.1991.tb06819.x
State	Published - Oct 1991

Keywords

fracture toughness
hardness
nanocrystalline
polycrystalline materials
titania

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

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10.1111/j.1151-2916.1991.tb06819.x

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AU - Averback, Robert S.

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N2 - 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.

AB - 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.

KW - fracture toughness

KW - hardness

KW - nanocrystalline

KW - polycrystalline materials

KW - titania

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Temperature Dependence of the Hardness of Nanocrystalline Titanium Dioxide

Abstract

Keywords

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