On Studying Surface and Nanomechanical Properties of Ti-O Films by Alkali Treatment

Feng Wen; Yang Cao; Yu Zhou

doi:10.4028/www.scientific.net/AMM.138-139.821

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 138-139On Studying Surface and Nanomechanical Properties...

On Studying Surface and Nanomechanical Properties of Ti-O Films by Alkali Treatment

Abstract:

Titanium oxide (Ti-O) films have been widely used in the fields of electron, photology and medicine due to its distinctive optical, electrical and chemical properties. In this paper, Ti-O films were synthesized by micro-arc oxidation firstly, and then surface was modified by NaOH alkali solution under different treatment time. The wettabilities of as-prepared films were investigated by contact angle measurements using four common liquids. nanoindentation was adopted to obtain the films’ nanohardness and modulus. The results show that Ti-O films tend towards hydrophilia and its surface energy increased after alkali treatment, but no obvious effects to nanohardness and modulus of Ti-O films. Surface roughness of Ti-O films increases after alkali treatment firstly, but decreased with continuing to increasing the times of alkali treatment.

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Periodical:

Applied Mechanics and Materials (Volumes 138-139)

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821-825

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https://doi.org/10.4028/www.scientific.net/AMM.138-139.821

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Online since:

November 2011

Authors:

Feng Wen, Yang Cao, Yu Zhou

Keywords:

AFM, Alkali Treatment, Nanohardness, Surface Energy, Ti-O Films

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