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Title: Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars
Authors: Zhao, Yugang
Yang, Chun
Keywords: Hydrophobicity
Issue Date: 2016
Source: Zhao, Y., & Yang, C. (2016). Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars. Applied Physics Letters, 108(6), 061605-.
Series/Report no.: Applied Physics Letters
Abstract: Previous studies have shown ice delay on nano-structured or hierarchical surfaces with nanoscale roughness. Here we report retarded condensate freezing on superhydrophobic silicon substrates fabricated with patterned micropillars of small aspect ratio. We further investigated the pillar size effects on freezing propagation. We found that the velocity of freezing propagation on the surfacepatterned with proper micropillars can be reduced by one order of magnitude, compared to that on the smooth untreated siliconsurface. Additionally, we developed an analytical model to describe the condensate freezing propagation on a structuredsurface with micropillars and the model predictions were compared with our experimental results.
ISSN: 0003-6951
DOI: 10.1063/1.4941927
Schools: School of Mechanical and Aerospace Engineering 
Rights: © 2016 American Institute of Physics (AIP). This paper was published in Applied Physics Letters and is made available as an electronic reprint (preprint) with permission of American Institute of Physics (AIP). The published version is available at: []. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
Fulltext Permission: open
Fulltext Availability: With Fulltext
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