Controlling the wetting property of the surface present a major challenge but at the same time, it open the possibility of designing surfaces customized for particular applications. For example, allowing self-cleaning surfaces when the surface presents a hydrophobic state with high static contact angle and low contact angle hysteresis. In this work, the effect on the wetting property of patterned surfaces with Si microcones has been studied. It was observed that the height of the structure and center-to-center distance are controlling the wetting property of the surface. Three different wetting states (Cassie-Baxter state, the Wenzel state, and the sunny-side-up state) and the corresponding transition between the states were observed. A sharp Cassie-Wenzel transition was triggered with decreasing the area fraction of the surface.
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ASME 2017 15th International Conference on Nanochannels, Microchannels, and Minichannels
August 27–30, 2017
Cambridge, Massachusetts, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5830-1
PROCEEDINGS PAPER
Study of the Wetting Characteristics of Patterned Silicon Micro Conical Structure Available to Purchase
Maria Fernandino,
Maria Fernandino
NTNU, Trondheim, Norway
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Carlos Albert Dorao
Carlos Albert Dorao
NTNU, Trondheim, Norway
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Il Woong Park
NTNU, Trondheim, Norway
Maria Fernandino
NTNU, Trondheim, Norway
Carlos Albert Dorao
NTNU, Trondheim, Norway
Paper No:
ICNMM2017-5512, V001T08A001; 8 pages
Published Online:
November 10, 2017
Citation
Park, IW, Fernandino, M, & Dorao, CA. "Study of the Wetting Characteristics of Patterned Silicon Micro Conical Structure." Proceedings of the ASME 2017 15th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2017 15th International Conference on Nanochannels, Microchannels, and Minichannels. Cambridge, Massachusetts, USA. August 27–30, 2017. V001T08A001. ASME. https://doi.org/10.1115/ICNMM2017-5512
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