Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars
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...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
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2016
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| Online Access: | https://hdl.handle.net/10356/82792 http://hdl.handle.net/10220/40331 |
| _version_ | 1826120803283894272 |
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| author | Zhao, Yugang Yang, Chun |
| author2 | School of Mechanical and Aerospace Engineering |
| author_facet | School of Mechanical and Aerospace Engineering Zhao, Yugang Yang, Chun |
| author_sort | Zhao, Yugang |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T05:22:45Z |
| format | Journal Article |
| id | ntu-10356/82792 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:22:45Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/827922023-03-04T17:14:08Z Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars Zhao, Yugang Yang, Chun School of Mechanical and Aerospace Engineering Hydrophobicity Superhydrophobic 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. Published version 2016-03-24T09:24:44Z 2019-12-06T15:05:40Z 2016-03-24T09:24:44Z 2019-12-06T15:05:40Z 2016 Journal Article Zhao, Y., & Yang, C. (2016). Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars. Applied Physics Letters, 108(6), 061605-. 0003-6951 https://hdl.handle.net/10356/82792 http://hdl.handle.net/10220/40331 10.1063/1.4941927 en Applied Physics Letters © 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: [http://dx.doi.org/10.1063/1.4941927]. 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. 5 p. application/pdf |
| spellingShingle | Hydrophobicity Superhydrophobic Zhao, Yugang Yang, Chun Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars |
| title | Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars |
| title_full | Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars |
| title_fullStr | Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars |
| title_full_unstemmed | Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars |
| title_short | Retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars |
| title_sort | retarded condensate freezing propagation on superhydrophobic surfaces patterned with micropillars |
| topic | Hydrophobicity Superhydrophobic |
| url | https://hdl.handle.net/10356/82792 http://hdl.handle.net/10220/40331 |
| work_keys_str_mv | AT zhaoyugang retardedcondensatefreezingpropagationonsuperhydrophobicsurfacespatternedwithmicropillars AT yangchun retardedcondensatefreezingpropagationonsuperhydrophobicsurfacespatternedwithmicropillars |