Commenced in January 2007
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TiO₂–ZrO₂ Related Abstracts

1 Comparison of Tribological Properties of TiO₂, ZrO₂ and TiO₂–ZrO₂ Composite Films Prepared by Sol–Gel Method

Authors: A. Çelik, O. Çomaklı, M. Yazıcı, T. Yetim, A. F. Yetim

Abstract:

In this study, TiO₂, ZrO₂, and TiO₂–ZrO₂ composite films were coated on Cp-Ti substrates by sol-gel method. Structures of uncoated and coated samples were investigated by X-ray diffraction and SEM. XRD data identified anatase phase in TiO₂ coated samples and tetragonal zirconia phase in ZrO₂ coated samples while both of anatase and tetragonal zirconia phases in TiO₂–ZrO₂ composite films. The mechanical and wear properties of samples were investigated using micro hardness, pin-on-disk tribotester, and 3D profilometer. The best wear resistance was obtained from TiO₂–ZrO₂ composite films. This can be attributed to their high surface hardness, low surface roughness and high thickness of the film.

Keywords: Wear, TiO2, sol-gel, composite films, ZrO2, TiO₂–ZrO₂

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