Abstract
Abstract This paper aims to provide a method in improving tribological properties of Al2O3/TiC ceramics. Biomimetic shark skin was produced on Al2O3/TiC ceramic surfaces by laser surface texturing. Then WS2 coating was deposited on the biomimetic skin by electrohydrodynamic atomization and its dry friction behaviours and wear mechanisms were investigated. Results revealed that the synergy effect of biomimetic shark skin and WS2 coatings has an effective influence on the tribological properties of Al2O3/TiC ceramics. The friction coefficient reduced to ∼0.3 and ∼0.07 after texturing biomimetic shark skin and depositing WS2 coatings, which reduced by 29% and 84%, respectively, compared with those of only polished Al2O3/TiC ceramics. The contribution of biomimetic shark skin was primarily decreasing the friction surface, reducing shear stress and trapping wear debris. Moreover, the grooves acted as lubricant reservoir could keep a thicker trio-film and realize continuous lubrication for a longer friction time.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
