Particle Trapping and Banding in Rapid Colloidal Solidification

J. A. W. Elliott and S. S. L. Peppin
Phys. Rev. Lett. 107, 168301 – Published 11 October 2011

Abstract

We derive an expression for the nonequilibrium segregation coefficient of colloidal particles near a moving solid-liquid interface. The resulting kinetic phase diagram has applications for the rapid solidification of clay soils, gels, and related colloidal systems. We use it to explain the formation of bandlike defects in rapidly solidified alumina suspensions.

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  • Received 30 June 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.168301

© 2011 American Physical Society

Authors & Affiliations

J. A. W. Elliott

  • Department of Chemical and Materials Engineering, University of Edmonton, Edmonton, Alberta, Canada, T6G 2V4

S. S. L. Peppin

  • OCCAM, Mathematical Institute, Oxford University, Oxford, United Kingdom, OX1 3LB

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Vol. 107, Iss. 16 — 14 October 2011

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