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Wettability surface and friction characterisation of ZrO2 ceramics by femtosecond laser texturing

Qibiao Yang (School of Mechanical Engineering, Hubei University of Technology, Wuhan, China)
Yunhan You (School of Mechanical Engineering, Hubei University of Technology, Wuhan, China)
Bojin Cheng (School of Mechanical Engineering, Hubei University of Technology, Wuhan, China)
Lie Chen (School of Mechanical Engineering, Hubei University of Technology, Wuhan, China)
Jian Cheng (School of Mechanical Engineering, Hubei University of Technology, Wuhan, China)
Deyuan Lou (School of Mechanical Engineering, Hubei University of Technology, Wuhan, China)
Yutao Wang (Shanghai Institute of Laser Technology, Shanghai, China and Shanghai Keylab of Laser Beam Micro Processing, Shanghai, China)
Dun Liu (School of Mechanical Engineering, Hubei University of Technology, Wuhan, China)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 5 December 2022

Issue publication date: 2 January 2023

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Abstract

Purpose

The purpose of this study is to process the wettability surface of the ZrO2 ceramics to improve their surface friction performance.

Design/methodology/approach

Microtexture was processed on the surface of ZrO2 ceramics using a femtosecond laser. The three-dimensional texture morphology, surface contact angle, friction curve and wear morphology were measured by the laser confocal microscope, the contact angle meter, the reciprocating friction and wear tester and the scanning electron microscope, respectively. Based on Wenzel and partial impalement models, a geometric model of micro pits is established to study the influence mechanism of micro pit depth, diameter and distribution density on wettability and to analyze the relationship between surface wettability and tribological properties.

Findings

The results show that changing the geometric characteristics of the texture will lead to a change in the solid-liquid contact mode, and then lead to a change of in the surface contact angle. Wettability is an essential factor that affects the reduction of surface friction. The construction of a reasonable texture can enhance the surface hydrophilicity, which is conducive to the formation of a lubricating film on the ceramic surface, thereby reducing abrasive and adhesive wear, and improving the wear resistance of the ZrO2 ceramic surface.

Originality/value

The results provide a theoretical reference for femtosecond laser surface texture wettability regulation and tribological performance improvement.

Keywords

Acknowledgements

This work was supported by Scientific Research Project of Science and Technology Commission of Shanghai Municipality (Grant No.19511130400).

Conflict of interest. The authors declare that they have no conflicts of interest.

Citation

Yang, Q., You, Y., Cheng, B., Chen, L., Cheng, J., Lou, D., Wang, Y. and Liu, D. (2023), "Wettability surface and friction characterisation of ZrO2 ceramics by femtosecond laser texturing", Industrial Lubrication and Tribology, Vol. 75 No. 1, pp. 118-125. https://doi.org/10.1108/ILT-08-2022-0241

Publisher

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Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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