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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.3c02318
|2 doi
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|a eng
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| 100 |
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|a Cui, Jiawang
|e verfasserin
|4 aut
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| 245 |
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|a Melting Process of Frozen Sessile Droplets on Superhydrophobic Surfaces
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|c 2023
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 31.10.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Superhydrophobic surfaces can exhibit icephobicity in many ways due to their large contact angles and small rolling angles. The melting process of frozen droplets on superhydrophobic surfaces is still unclear, hindering the understanding of surface icephobicity. In this experimental study of the melting process of frozen sessile droplets on superhydrophobic surfaces, we find two types of melting morphologies with opposite vortex directions on a single-scale nanostructured (SN) superhydrophobic substrate and a hierarchical-scale micronanostructured (HMN) superhydrophobic substrate. Melting pattern visualizations and flow field measurements showed Marangoni convection and natural convection occurring in the melting sessile droplets. For the HMN superhydrophobic substrate, the internal flow was found to be dominated by Marangoni convection due to the temperature gradient along the surface of the droplet. For the SN superhydrophobic substrate, Marangoni convection was inhibited by the superhydrophobic particles at the surface of the droplet, which were shed from the fragile superhydrophobic substrate during the freezing-melting process, as confirmed by surface characterizations of the substrate and flow measurements of a water pool. These results will help researchers better understand the melting process of frozen droplets and in designing novel icephobic surfaces for numerous applications
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|a Journal Article
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|a Wang, Tianyou
|e verfasserin
|4 aut
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| 700 |
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|a Che, Zhizhao
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 39(2023), 41 vom: 17. Okt., Seite 14800-14810
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|x 1520-5827
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|g volume:39
|g year:2023
|g number:41
|g day:17
|g month:10
|g pages:14800-14810
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|u http://dx.doi.org/10.1021/acs.langmuir.3c02318
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