Fast fabrication of superhydrophobic metallic surface using nanosecond laser texturing and low-temperature annealing. Issue 1 (2016)

• Record Type: Journal Article
• Authors: Chun, Doo-Man; Ngo, Chi-Vinh; Lee, Kyong-Min
• Is Part Of: CIRP annals. Volume 65:Issue 1(2016)
• Page Start: 519
• Page End: 522
• Publication Date: 2016
• Subjects: Laser beam machining (LBM) -- Surface modification -- Superhydrophobic metallic surface; Production engineering -- Research -- Periodicals; 670.5
• DOI: 10.1016/j.cirp.2016.04.019
• Languages: English
• ISSNs: 0007-8506

Abstract

Abstract: Recently, cost-effective nanosecond laser texturing has been used for the fabrication of superhydrophobic surface on metals such as copper and brass. However, the wettability change from hydrophilicity to superhydrophobicity took a relatively long time from several days to several months since the textured surface was exposed to ambient conditions. To reduce the time required for wettability changes for industrial applications, a facile post process was introduced. This paper demonstrates fast wettability change of a nanosecond laser textured copper surface from hydrophilic to superhydrophobic using additional low-temperature annealing (100 °C). Surface characteristics were evaluated to explain the underlying mechanism.