Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/19444
Title: An investigation on the effect of ultra-precision machined patterns in wetting transition
Authors: Cheng, CT
To, S 
Chan, CY 
Cheung, CF 
Keywords: Hydrophobic surface
Micro pattern
Ultra-precision raster milling
Wetting transition
Issue Date: 2011
Source: International journal of nanomanufacturing, 2011, v. 7, no. 3-4, p. 245-266 How to cite?
Journal: International Journal of Nanomanufacturing 
Abstract: This paper aims to study the influence of micro patterns on the wetting transition of a hydrophilic material. Surfaces with a designed pattern with various groove widths are machined by ultra-precision raster milling. The impact of different groove widths of the machined patterns on wetting transition will be discussed by studying the spreading of droplets on respective patterns. Contact angle and elongation length were measured using a contact angle goniometer. The present work revealed that machined surfaces on a hydrophilic material with micro patterns can achieve composite solid-liquid-air interfaces when the scales of the machined pattern fall into a critical range. The results from the experiments can provide useful information for designing self-cleaning surfaces.
URI: http://hdl.handle.net/10397/19444
ISSN: 1746-9392
DOI: 10.1504/IJNM.2011.042468
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