Exsolution by spinodal decomposition I: Evolution equation for binary mineral solutions with anisotropic interfacial energy

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ID: 299961
2009
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Abstract
Phase separation in a binary system that results from the uphill diffusion of chemical components is investigated theoretically. We reconsider the original spinodal decomposition model of Cahn and Hilliard taking into account possible intrinsic anisotropy of the underlying system. Specifically we address the effects of orientation dependent interfacial energy. Such anisotropy is of particular importance for mineral systems. The corresponding evolution equation is systematically derived. We show how the anisotropy affects the interfacial energy per unit area, the interface width, scaling laws, and the critical system size at which spinodal decomposition starts to develop. We further obtain numerical solutions and discuss coarsening dynamics for the case where the decomposition products have pronounced shape anisotropy.
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openalex_W2135476652 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Elena Petrishcheva, Rainer Abart
Journal american journal of science
Year 2009
DOI
10.2475/06.2009.01
URL
https://ajsonline.org/article/61779.pdf
Keywords Keywords not found

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