Influence of Grain Size and Humidity on the Nanotribological Properties of Wear-Resistant Nanostructured ZrO2 Coatings

E. Tocha, Holger Schönherr, Gyula J. Vancso, Natasha Siebelt

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9 Citations (Scopus)


The nanotribological properties of nanostructured thin films of tetragonal ZrO2 on oxidized Si (100) were studied as a function of grain size and relative humidity (RH) by atomic force microscopy. The nanostructured ZrO2 showed a 50% decrease in friction coefficient μ compared with oxidized Si (100) in dry nitrogen atmosphere and 40% RH. A maximum of μ was observed at ca. 40% RH for both samples, while there were insignificant differences in μ for ZrO2 samples with grain sizes between 12 and 30 nm. The good tribological properties open the possibility for nanostructured zirconia to be applied as wear-resistant, low friction coatings on various materials.
Original languageUndefined
Pages (from-to)2498-2503
Number of pages6
JournalJournal of the American Ceramic Society
Issue number9
Publication statusPublished - 2005


  • IR-72011
  • METIS-228990

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