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Anisotropic phase-field model: interfaces and junctions

Nestler, B. and Wheeler, A.A. (1998) Anisotropic phase-field model: interfaces and junctions Physical Review E, 57, (3A), pp. 2602-2609. (doi:10.1103/PhysRevE.57.2602).

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n this paper we bring together and extend two recent developments in phase-field models, namely, a phase-field model of a multiphase system [I. Steinbach et al., Physica D 94, 135 (1996)] and the extension of the Cahn-Hoffman ?-vector theory of anisotropic sharp interfaces to phase-field models [A. A. Wheeler and G. B. McFadden, Eur. J. Appl. Math. 7, 369 (1996); Proc. R. Soc. London, Ser. A 453, 1611 (1997)]. We develop the phase-field model of a multiphase system proposed by Steinbach et al. to include both surface energy and interfacial kinetic anisotropy. We show that this model may be compactly expressed in terms of generalized Cahn-Hoffman ? vectors. This generalized Cahn-Hoffman ?-vector formalism is subsequently developed to include the notion of a stress tensor, which is used to succinctly derive the leading-order conditions at both moving interfaces and stationary multijunctions in the sharp interface limit.

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Published date: 1998


Local EPrints ID: 29098
ISSN: 1063-651X
PURE UUID: 6c6727ac-6250-419a-8d65-08f81f6d007d

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Date deposited: 09 Jan 2007
Last modified: 12 Sep 2017 16:32

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Author: B. Nestler
Author: A.A. Wheeler

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