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How ice grows from premelting films and water droplets

Close to the triple point, the surface of ice is covered by a thin liquid layer (so-called quasi-liquid layer) which crucially impacts growth and melting rates. Experimental probes cannot observe the growth processes below this layer, and classical models of growth by vapor deposition do not account...

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Autores principales: Sibley, David N., Llombart, Pablo, Noya, Eva G., Archer, Andrew J., MacDowell, Luis G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7801427/
https://www.ncbi.nlm.nih.gov/pubmed/33431836
http://dx.doi.org/10.1038/s41467-020-20318-6
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author Sibley, David N.
Llombart, Pablo
Noya, Eva G.
Archer, Andrew J.
MacDowell, Luis G.
author_facet Sibley, David N.
Llombart, Pablo
Noya, Eva G.
Archer, Andrew J.
MacDowell, Luis G.
author_sort Sibley, David N.
collection PubMed
description Close to the triple point, the surface of ice is covered by a thin liquid layer (so-called quasi-liquid layer) which crucially impacts growth and melting rates. Experimental probes cannot observe the growth processes below this layer, and classical models of growth by vapor deposition do not account for the formation of premelting films. Here, we develop a mesoscopic model of liquid-film mediated ice growth, and identify the various resulting growth regimes. At low saturation, freezing proceeds by terrace spreading, but the motion of the buried solid is conveyed through the liquid to the outer liquid–vapor interface. At higher saturations water droplets condense, a large crater forms below, and freezing proceeds undetectably beneath the droplet. Our approach is a general framework that naturally models freezing close to three phase coexistence and provides a first principle theory of ice growth and melting which may prove useful in the geosciences.
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spelling pubmed-78014272021-01-21 How ice grows from premelting films and water droplets Sibley, David N. Llombart, Pablo Noya, Eva G. Archer, Andrew J. MacDowell, Luis G. Nat Commun Article Close to the triple point, the surface of ice is covered by a thin liquid layer (so-called quasi-liquid layer) which crucially impacts growth and melting rates. Experimental probes cannot observe the growth processes below this layer, and classical models of growth by vapor deposition do not account for the formation of premelting films. Here, we develop a mesoscopic model of liquid-film mediated ice growth, and identify the various resulting growth regimes. At low saturation, freezing proceeds by terrace spreading, but the motion of the buried solid is conveyed through the liquid to the outer liquid–vapor interface. At higher saturations water droplets condense, a large crater forms below, and freezing proceeds undetectably beneath the droplet. Our approach is a general framework that naturally models freezing close to three phase coexistence and provides a first principle theory of ice growth and melting which may prove useful in the geosciences. Nature Publishing Group UK 2021-01-11 /pmc/articles/PMC7801427/ /pubmed/33431836 http://dx.doi.org/10.1038/s41467-020-20318-6 Text en © The Author(s) 2021 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/.
spellingShingle Article
Sibley, David N.
Llombart, Pablo
Noya, Eva G.
Archer, Andrew J.
MacDowell, Luis G.
How ice grows from premelting films and water droplets
title How ice grows from premelting films and water droplets
title_full How ice grows from premelting films and water droplets
title_fullStr How ice grows from premelting films and water droplets
title_full_unstemmed How ice grows from premelting films and water droplets
title_short How ice grows from premelting films and water droplets
title_sort how ice grows from premelting films and water droplets
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7801427/
https://www.ncbi.nlm.nih.gov/pubmed/33431836
http://dx.doi.org/10.1038/s41467-020-20318-6
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