Effect of zirconia nanotube coating on the hydrophilicity and mechanochemical behavior of zirconium for biomedical applications

Nezhad, Erfan Zal and Sarraf, Masoud and Musharavati, Farayi and Jaber, Fadi and Wang, Ji and Hosseini, Hamid Reza Madaah and Bae, Sungchul and Chowdhury, Muhammad and So, Hongyun and Sukiman, Nazatul Liana (2022) Effect of zirconia nanotube coating on the hydrophilicity and mechanochemical behavior of zirconium for biomedical applications. Surfaces and Interfaces, 28. ISSN 2468-0230, DOI https://doi.org/10.1016/j.surfin.2021.101623.

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Zirconium has attracted considerable attention in the biomedical field owing to its biocompatibility and desirable tribological and mechanical properties. In this study, we anodized pure zirconium in an ammonium fluoride and ethylene glycol electrolyte, which produced a coating of ZrO2 nanotubes (NTs). The ZrO2 coated samples were annealed at different temperatures, and the morphology and structure of the coated substrates were studied using XPS, SEM, TEM, EDS, and SAED. The micro/nanomechanical properties and corrosion resistance of the samples were evaluated. Wear tests performed on bare and coated substrates revealed that the coated samples annealed at 400 degrees C had a significantly lower average coefficient of friction than the other substrates. The corrosion test was performed on different substrates, and the results showed that the corrosion resistance of the coated sample annealed at 400 degrees C was considerably higher than that of the other substrates. According to the nanoindentation tests, the elastic modulus of the Zr sample decreased from 74.3 to 31.7 GPa after anodization and the creation of ZrO2 NTs. Biocompatibility tests revealed that cell attachment to the surface of the ZrO2 NTs decreased due to the presence of F-; however, the cell viability increased after the ZrO2 NT-coated samples were annealed at 200 and 400 degrees C.

Item Type: Article
Funders: Qatar National Research Fund, Qatar Foundation, Doha, Qatar [NPRP11S-0102-180178], Universiti Malaya
Uncontrolled Keywords: ZrO2 nanotubes; Wear and corrosion behavior; Biomaterials; Nanoindentation; Mechanical properties; Hydrophilicity
Subjects: T Technology > T Technology (General)
T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering > Department of Mechanical Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 22 Aug 2022 06:41
Last Modified: 22 Aug 2022 06:41
URI: http://eprints.um.edu.my/id/eprint/33429

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