Please use this identifier to cite or link to this item: https://doi.org/10.2961/jlmn.2011.01.0002
Title: Laser ablation of metal substrates for super-hydrophobic effect
Authors: Tang, M. 
Shim, V. 
Pan, Z.Y.
Choo, Y.S. 
Hong, M.H. 
Keywords: Contact angle and high speed camera imaging
Laser ablation
Super-hydrophobic surface
Issue Date: Mar-2011
Citation: Tang, M., Shim, V., Pan, Z.Y., Choo, Y.S., Hong, M.H. (2011-03). Laser ablation of metal substrates for super-hydrophobic effect. Journal of Laser Micro Nanoengineering 6 (1) : 6-9. ScholarBank@NUS Repository. https://doi.org/10.2961/jlmn.2011.01.0002
Abstract: Pulsed UV laser ablation is applied to fabricate super-hydrophobic surfaces on metal substrates. The spike shape micro-structure arrays achieved by the laser ablation on the brass substrates increase the surface roughness (Ra) from ~ 400 nm to ~ 5 μm. Meanwhile, plenty of nano-structures (200 ~ 600 nm) are also formed and scattered on the surface of the micro-structures. It is found that the water contact angle of the brass substrate increases from 110° to 161°. Super-hydrophobic property of the metal surfaces with both the micro- & nano-roughness is explained by water repellent model for double roughness structures. High speed camera imaging is used to analyze water droplet dynamics during its rolling down along the slanted super-hydrophobic brass surface. It shows that the pulsed laser ablation is a versatile approach to create large area super-hydrophobic surfaces for industrial applications.
Source Title: Journal of Laser Micro Nanoengineering
URI: http://scholarbank.nus.edu.sg/handle/10635/82603
ISSN: 18800688
DOI: 10.2961/jlmn.2011.01.0002
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

37
checked on Oct 17, 2018

WEB OF SCIENCETM
Citations

34
checked on Oct 10, 2018

Page view(s)

90
checked on Aug 10, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.