Journal
CHINESE SCIENCE BULLETIN
Volume 59, Issue 28, Pages 3691-3695Publisher
SCIENCE PRESS
DOI: 10.1007/s11434-014-0524-y
Keywords
Bionic; Superhydrophobic; Wire cut electrical discharge machining; Aluminum alloy; Rice leaf
Categories
Funding
- National Natural Science Foundation of China [51275056]
- Jilin Provincial Science and Technology Development Program of China [201201123]
- Changchun University of Science and Technology Young Scientists Foundation, China [202000490]
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In this work, bionic-superhydrophobic surfaces on aluminum alloy 5083 are fabricated by reciprocating-type high-speed wire cut electrical discharge machining based on the hydrophobic property of the rice leaf. Sub-millimeter-scale rectangular grooves are processed on the surfaces. The superhydrophobic surface has shown a static contact angle of 158A degrees, which is similar to the rice leaf. The morphological features are characterized by scanning electron microscopy, showing that the craters and bumps are uniformly distributed on the surfaces of the rectangular grooves with porous nanostructures. The method proposed in this work has the advantages of using only one step, requiring no further procedure to lower the surface energy and processing a large-area surface efficiently.
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