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Freezing-induced wetting transitions on superhydrophobic surfaces
Supercooled droplet freezing on surfaces occurs frequently in nature and industry, often adversely affecting the efficiency and reliability of technological processes. The ability of superhydrophobic surfaces to rapidly shed water and reduce ice adhesion make them promising candidates for resistance...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10185467/ https://www.ncbi.nlm.nih.gov/pubmed/37205127 http://dx.doi.org/10.1038/s41567-023-01946-3 |
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author | Lambley, Henry Graeber, Gustav Vogt, Raphael Gaugler, Leon C. Baumann, Enea Schutzius, Thomas M. Poulikakos, Dimos |
author_facet | Lambley, Henry Graeber, Gustav Vogt, Raphael Gaugler, Leon C. Baumann, Enea Schutzius, Thomas M. Poulikakos, Dimos |
author_sort | Lambley, Henry |
collection | PubMed |
description | Supercooled droplet freezing on surfaces occurs frequently in nature and industry, often adversely affecting the efficiency and reliability of technological processes. The ability of superhydrophobic surfaces to rapidly shed water and reduce ice adhesion make them promising candidates for resistance to icing. However, the effect of supercooled droplet freezing—with its inherent rapid local heating and explosive vaporization—on the evolution of droplet–substrate interactions, and the resulting implications for the design of icephobic surfaces, are little explored. Here we investigate the freezing of supercooled droplets resting on engineered textured surfaces. On the basis of investigations in which freezing is induced by evacuation of the atmosphere, we determine the surface properties required to promote ice self-expulsion and, simultaneously, identify two mechanisms through which repellency falters. We elucidate these outcomes by balancing (anti-)wetting surface forces with those triggered by recalescent freezing phenomena and demonstrate rationally designed textures to promote ice expulsion. Finally, we consider the complementary case of freezing at atmospheric pressure and subzero temperature, where we observe bottom-up ice suffusion within the surface texture. We then assemble a rational framework for the phenomenology of ice adhesion of supercooled droplets throughout freezing, informing ice-repellent surface design across the phase diagram. |
format | Online Article Text |
id | pubmed-10185467 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-101854672023-05-17 Freezing-induced wetting transitions on superhydrophobic surfaces Lambley, Henry Graeber, Gustav Vogt, Raphael Gaugler, Leon C. Baumann, Enea Schutzius, Thomas M. Poulikakos, Dimos Nat Phys Letter Supercooled droplet freezing on surfaces occurs frequently in nature and industry, often adversely affecting the efficiency and reliability of technological processes. The ability of superhydrophobic surfaces to rapidly shed water and reduce ice adhesion make them promising candidates for resistance to icing. However, the effect of supercooled droplet freezing—with its inherent rapid local heating and explosive vaporization—on the evolution of droplet–substrate interactions, and the resulting implications for the design of icephobic surfaces, are little explored. Here we investigate the freezing of supercooled droplets resting on engineered textured surfaces. On the basis of investigations in which freezing is induced by evacuation of the atmosphere, we determine the surface properties required to promote ice self-expulsion and, simultaneously, identify two mechanisms through which repellency falters. We elucidate these outcomes by balancing (anti-)wetting surface forces with those triggered by recalescent freezing phenomena and demonstrate rationally designed textures to promote ice expulsion. Finally, we consider the complementary case of freezing at atmospheric pressure and subzero temperature, where we observe bottom-up ice suffusion within the surface texture. We then assemble a rational framework for the phenomenology of ice adhesion of supercooled droplets throughout freezing, informing ice-repellent surface design across the phase diagram. Nature Publishing Group UK 2023-02-09 2023 /pmc/articles/PMC10185467/ /pubmed/37205127 http://dx.doi.org/10.1038/s41567-023-01946-3 Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Letter Lambley, Henry Graeber, Gustav Vogt, Raphael Gaugler, Leon C. Baumann, Enea Schutzius, Thomas M. Poulikakos, Dimos Freezing-induced wetting transitions on superhydrophobic surfaces |
title | Freezing-induced wetting transitions on superhydrophobic surfaces |
title_full | Freezing-induced wetting transitions on superhydrophobic surfaces |
title_fullStr | Freezing-induced wetting transitions on superhydrophobic surfaces |
title_full_unstemmed | Freezing-induced wetting transitions on superhydrophobic surfaces |
title_short | Freezing-induced wetting transitions on superhydrophobic surfaces |
title_sort | freezing-induced wetting transitions on superhydrophobic surfaces |
topic | Letter |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10185467/ https://www.ncbi.nlm.nih.gov/pubmed/37205127 http://dx.doi.org/10.1038/s41567-023-01946-3 |
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