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Jeong, Hoon Eui
Multiscale Biomimetics & Manufacturing Lab
Research Interests
  • Biomimetics

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Engineering stainless steel surface via wire electrical discharge machining for controlling the wettability

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Title
Engineering stainless steel surface via wire electrical discharge machining for controlling the wettability
Author
Bae, Won-GyuKim, DoogonSong, Ki YoungJeong, Hoon EuiChu, Chong Nam
Keywords
Wettability; Interfaces; Stainless steel; Electrical discharge machining
Issue Date
201508
Publisher
ELSEVIER SCIENCE SA
Citation
SURFACE & COATINGS TECHNOLOGY, v.275, no., pp.316 - 323
Abstract
We present a straightforward method to realize a wettability-controlled stainless steel surface via wire electrical discharge machining. Samples of AISI 304 stainless steel were prepared, having various depth of groove, while width and pitch of groove were set to be 500 mu m and 600 mu m. Wetting properties of the fabricated samples were quantified by measuring static contact angle of deionized water and silicone oil, and sliding angle of water droplets. Mechanical robustness test was conducted by comparing static contact angle of water and silicone oil before and after 1000 cycles of abrasion. In order to propose potential applications, we demonstrate oil-water separation and polymer molding for fabricating superhydrophobic surfaces. (C) 2015 Elsevier B.V. All rights reserved
URI
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DOI
http://dx.doi.org/10.1016/j.surfcoat.2015.04.047
ISSN
0257-8972
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