Speed-dependent ice bandings in freezing colloidal suspensions

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

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Author(s)

  • Jiaxue You
  • Jincheng Wang
  • Lilin Wang
  • Junjie Li
  • Xin Lin

Detail(s)

Original languageEnglish
Pages (from-to)126-132
Journal / PublicationColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume543
Online published15 Dec 2017
Publication statusPublished - 20 Apr 2018
Externally publishedYes

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-85041534558&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(8e4ed939-d563-4add-a36c-bc3658e779e8).html

Abstract

Formation mechanism of speed-dependent ice bandings in freezing colloidal suspensions, of significance in frost heaving and materials science, remains a mystery. With quantitative experiments, we propose a possible mechanism of speed-dependent ice bandings by focusing on the particle packing density and dynamic interface undercooling. The particle packing density ahead of the freezing interface decreases with increasing pulling speeds, attributed to the speed-dependent packing of particles. Through affecting the curvature undercooling of pore ices, the speed-dependent packing of particles can be used to explain speed-dependent thicknesses of ice bandings. The dynamic interface undercooling was obtained to explore curvature undercooling of pore ices and quantitative details of transient interface positions, speeds and undercooling were given. All the evidences imply that the speed-dependent particle packing and dynamic interface undercooling are responsible for speed-dependent ice bandings.

Research Area(s)

  • Dynamic undercooling, Ice banding, Particle packing, Solidification

Citation Format(s)

[ RIS ] [ BibTeX ]
Speed-dependent ice bandings in freezing colloidal suspensions. / You, Jiaxue; Wang, Jincheng; Wang, Lilin et al.
In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 543, 20.04.2018, p. 126-132.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review