Advection-diffusion model for the stagnation of normal grain growth in thin films

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Abstract

This paper presents an advection-diffusion model to describe the stagnation of normal grain growth in thin films. The underlying advection-diffusion model describes grain growth in a two-dimensional topological-class/size space. Grain boundary grooving and the correlation between neighbouring grains are introduced into the model to represent stagnation. Grain boundary grooving causes the stagnation of grain growth, and the correlation between neighbouring grains accelerates the effects of stagnation. Numerical solution of continuity equations gives a grain size distribution that is close to log-normal, and fits experiments well. The time development of average grain size also shows the stagnation of grain growth.

Original languageEnglish
Pages (from-to)1805-1811
Number of pages6
JournalJournal of Physics D: Applied Physics
Volume35
Issue number14
Publication statusPublished - 2002

Keywords

  • SIMULATION

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