Fast fabrication of superhydrophobic metallic surface using nanosecond laser texturing and low-temperature annealing

被引:133
作者
Chun, Doo-Man [1 ]
Chi-Vinh Ngo [1 ]
Lee, Kyong-Min [1 ]
机构
[1] Univ Ulsan, Sch Mech Engn, Ulsan, South Korea
基金
新加坡国家研究基金会;
关键词
Laser beam machining (LBM); Surface modification; Superhydrophobic metallic surface; ALUMINUM;
D O I
10.1016/j.cirp.2016.04.019
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Recently, cost-effective nanosecond laser texturing has been used for the fabrication of super hydrophobic 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 degrees C). Surface characteristics were evaluated to explain the underlying mechanism. (C) 2016 CIRP.
引用
收藏
页码:519 / 522
页数:4
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