Phase-field investigation of the coarsening of porous structures by surface diffusion

Pierre Antoine Geslin, Mickaël Buchet, Takeshi Wada, Hidemi Kato

Research output: Contribution to journalArticle

Abstract

Nano and microporous connected structures have attracted increasing attention in the past decades due to their high surface area, presenting interesting properties for a number of applications. These structures generally coarsen by surface diffusion, leading to an enlargement of the structure characteristic length scale. We propose to study this coarsening behavior using a phase-field model for surface diffusion. In addition to reproducing the expected scaling law, our simulations enable to investigate precisely the evolution of the topological and morphological characteristics along the coarsening process. In particular, we show that after a transient regime, the coarsening is self-similar as exhibited by the evolution of both morphological and topological features. In addition, the influence of surface anisotropy is discussed and comparisons with experimental tomographic observations are presented.

Original languageEnglish
Article number083401
JournalPhysical Review Materials
Volume3
Issue number8
DOIs
Publication statusPublished - 8 Aug 2019

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy (miscellaneous)

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