Please use this identifier to cite or link to this item: https://doi.org/10.3390/COATINGS10050450
Title: Tunable hierarchical nanostructures onmicro-conical arrays of laser textured TC4 substrate by hydrothermal treatment for enhanced anti-icing property
Authors: Liu, M.
Zhou, R.
Chen, Z.
Yan, H.
Cui, J.
Liu, W.
Pan, J.H.
Hong, M. 
Keywords: Anti-icing
Hydrothermal treatment
Laser ablation
Micro/nano-hierarchical structures
Wetting model
Issue Date: 2020
Publisher: MDPI AG
Citation: Liu, M., Zhou, R., Chen, Z., Yan, H., Cui, J., Liu, W., Pan, J.H., Hong, M. (2020). Tunable hierarchical nanostructures onmicro-conical arrays of laser textured TC4 substrate by hydrothermal treatment for enhanced anti-icing property. Coatings 10 (5) : 450. ScholarBank@NUS Repository. https://doi.org/10.3390/COATINGS10050450
Rights: Attribution 4.0 International
Abstract: In this work, an anti-icing structured surface was fabricated by combining laser ablation with hydrothermal treatment. A micro-patterned surface on a Ti alloy (TC4) substrate was easily fabricated by a highly effective nanosecond pulsed laser ablation. It was observed that titania (TiO2) nanostructures were formed by hydrothermal treatment in aqueous alkali on the laser ablated TC4 substrate to obtain the micro/nano-hierarchical structures. The growth mechanism of the tunable nanoarrays was discussed by the adjustment of hydrothermal temperature. The as-prepared samples exhibited excellent superhydrophobicity with contact angles greater than 160°. It was found that optimized hydrothermal treatment on laser-processed TC4 substrates could further enhance surface anti-icing property. The results showed that the delay time (DT) had been extended by achieving over 90 min for the water droplets to freeze on the as-prepared structured surfaces, providing great potential in various anti-icing applications. © 2020 by the authors.
Source Title: Coatings
URI: https://scholarbank.nus.edu.sg/handle/10635/199211
ISSN: 2079-6412
DOI: 10.3390/COATINGS10050450
Rights: Attribution 4.0 International
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