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Dynamics of Dendritic Ice Freezing in Confinement

James Campbell, Bjornar Sandnes Orcid Logo, Eirik G. Flekkøy, Knut Jørgen Måløy

Crystal Growth and Design, Volume: 22, Issue: 4, Pages: 2433 - 2440

Swansea University Authors: James Campbell, Bjornar Sandnes Orcid Logo

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Abstract

We use high-speed photography to observe the dendritic freezing of ice between two closely spaced parallel plates. Measuring the propagation speeds of dendrites, we investigate whether there is a confinement-induced thermal influence upon the speed beyond that provided by a single surface. Plates of...

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Published in: Crystal Growth and Design
ISSN: 1528-7483 1528-7505
Published: American Chemical Society (ACS) 2022
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa59633
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Abstract: We use high-speed photography to observe the dendritic freezing of ice between two closely spaced parallel plates. Measuring the propagation speeds of dendrites, we investigate whether there is a confinement-induced thermal influence upon the speed beyond that provided by a single surface. Plates of thermally insulating plastic and moderately thermally conductive glass are used alone and in combination, at temperatures between −10.6 and −4.8 °C, with separations between 17 and 135 μm wide. No effect of confinement was detected for propagation on glass surfaces, but a possible slowing of propagation speed was seen between insulating plates. The pattern of dendritic growth was also studied, with a change from curving to straight dendrites being strongly associated with a switch from a glass to a plastic substrate.
College: Faculty of Science and Engineering
Funders: J.M.C., E.G.F., and K.J.M. thank the Research Council of Norway through its Centres of Excellence funding scheme, project number 262644. J.M.C. and B.S. acknowledge a grant from the Engineering and Physical Sciences Research Council (EPSRC), Grant Number EP/S034587/1.
Issue: 4
Start Page: 2433
End Page: 2440