Effect of Heat Treatment Temperature on the Wettability Transition from Hydrophilic to Superhydrophobic on Laser-Ablated Metallic Surfaces

doi:10.1002/adem.201701086

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	Effect of Heat Treatment Temperature on the Wettability Transition from Hydrophilic to Superhydrophobic on Laser-Ablated Metallic Surfaces
	Ngo, C. V.; Chun, D. M.
	2018
Source Publication	Advanced Engineering Materials
ISSN	1438-1656
Volume	20 Issue:7 Pages:11
Abstract	Superhydrophobic metallic surfaces made via pulsed laser ablation have been utilized recently. Immediately after laser ablation, metallic surfaces become hydrophilic. By aging the laser-ablated surface in ambient air for a relatively long period of time (several weeks to several months) or using a chemical coating post process, this type of surface becomes superhydrophobic. Herein, a facile post-process heat treatment that does not use any harsh chemicals is introduced to reduce the wettability transition time from hydrophilicity to superhdyrophobicity compared to surfaces treated for extended periods of time in ambient air. Grid patterns are ablated on aluminum, copper, and titanium by a nanosecond pulsed laser. Then, facile post-process heat treatment is applied at different temperatures. The effect of temperature on the wettability transition time is studied. The transition time is reduced from several weeks/months to a few hours. The wettability transition mechanism for each metal is also explained. Additionally, several potential applications, such as self-cleaning, water positioning, and water transport, are proposed.
Keyword	Heat Treatment Nanosecond Laser Ablation Self-Cleaning Superhydrophobic Metallic Surface Water Positioning aluminum-oxide surfaces reflection-absorption spectroscopy functional-groups fabrication coatings adsorption films Materials Science
DOI	10.1002/adem.201701086
Indexed By	SCI ; EI
Citation statistics
Document Type	期刊论文
Identifier	http://ir.ciomp.ac.cn/handle/181722/60965
Collection	中国科学院长春光学精密机械与物理研究所
Recommended Citation GB/T 7714	Ngo, C. V.,Chun, D. M.. Effect of Heat Treatment Temperature on the Wettability Transition from Hydrophilic to Superhydrophobic on Laser-Ablated Metallic Surfaces[J]. Advanced Engineering Materials,2018,20(7):11.
APA	Ngo, C. V.,&Chun, D. M..(2018).Effect of Heat Treatment Temperature on the Wettability Transition from Hydrophilic to Superhydrophobic on Laser-Ablated Metallic Surfaces.Advanced Engineering Materials,20(7),11.
MLA	Ngo, C. V.,et al."Effect of Heat Treatment Temperature on the Wettability Transition from Hydrophilic to Superhydrophobic on Laser-Ablated Metallic Surfaces".Advanced Engineering Materials 20.7(2018):11.

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中国科学院长春光学精密机械与物理研究所