Journal
SURFACE ENGINEERING
Volume 32, Issue 2, Pages 108-113Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1179/1743294414Y.0000000405
Keywords
Micromilling; Abrasive belt grinding; Microstructure; Superhydrophobic; Aluminium alloy
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Funding
- National Natural Science Foundation of China [51275056]
- Jilin Province Science Foundation for Youths [201201123]
- Natural Science Foundation of Jilin Province of China [201215139]
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An efficient method for processing superhydrophobic surface is presented in this paper, which can realise the microstructure machining on a large area. First, themicrogroove arrays were processed by high speed precision micromilling machine on the surface of the aluminium alloy. Then, the surface of the microgroove was ground by 1000 # electrostatic sand alumina water resistant abrasive belt. The machined surface topography was observed by SEM, which showed that the microgroove arrays were uniform. The contact angles of the water on the microgroove arrays were measured in different directions. In the parallel direction, the contact angle of microgroove arrays is 142 +/- 0.5 degrees, whereas in the vertical direction, it arrives 160 +/- 0.6 degrees. The above values of contact angle mean that a stable superhydrophobic metallic surface was prepared by the micromilling and grinding.
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