Interaction of Multiple Particles with a Solidification Front: From Compacted Particle Layer to Particle Trapping

Langmuir : the ACS Journal of Surfaces and Colloids
Brice Saint-MichelAlain Pocheau

Abstract

The interaction of solidification fronts with objects such as particles, droplets, cells, or bubbles is a phenomenon with many natural and technological occurrences. For an object facing the front, it may yield various fates, from trapping to rejection, with large implications regarding the solidification pattern. However, whereas most situations involve multiple particles interacting with each other and the front, attention has focused almost exclusively on the interaction of a single, isolated object with the front. Here we address experimentally the interaction of multiple particles with a solidification front by performing solidification experiments of a monodisperse particle suspension in a Hele-Shaw cell with precise control of growth conditions and real-time visualization. We evidence the growth of a particle layer ahead of the front at a close-packing volume fraction, and we document its steady-state value at various solidification velocities. We then extend single-particle models to the situation of multiple particles by taking into account the additional force induced on an entering particle by viscous friction in the compacted particle layer. By a force balance model this provides an indirect measure of the repelling...Continue Reading

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Citations

Nov 20, 2018·Soft Matter·Brice Saint-MichelAlain Pocheau
Jun 20, 2019·Physical Review. E·Brice Saint-MichelAlain Pocheau
Dec 18, 2020·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Kankan QinFrancisco M Fernandes
Jan 5, 2021·Soft Matter·Jiaxue YouM Grae Worster
Feb 12, 2021·Scientific Reports·Sidhanth TyagiSylvain Deville
Apr 2, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Etienne Jambon-Puillet

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