Computational modeling of phase connectivity in microstructures of porous materials during sintering and gain growth

Masayoshi Shimizu, Hideaki Matsubara, Hiroshi Nomura, Hideo Tomioka

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

A Monte Carlo simulation method using a three dimensional lattice was developed to analyze the connectivity of pores in sintered materials. The changes in porosity (fV), mean grain diameter (DS), intercept length of pores (DV), contiguity of the solid phase (C) and fraction of connected pores (fV,C) with the number of Monte Carlo steps (MCS) were analyzed as a function of initial porosity (fV,0) and initial grain diameter (DS,0). In many cases, fV,C decreased with MCS down to 0%, particularly at small and intermediate values of fV,0 and DS,0. However, in some cases of large fV,0 and DS,0, and fV,0 and DS,0, an fV,C of 100% was maintained irrespective of MCS, which means that all pores may remain connected in the material. Systematic plots of DV, DS and C vs fV,0 × fV,C, which indicate the amount (%) of connected pores, are found to be useful for designing sintering and grain growth processes of porous materials.

Original languageEnglish
Pages (from-to)205-211
Number of pages7
JournalJournal of the Ceramic Society of Japan
Volume111
Issue number1291
DOIs
Publication statusPublished - 2003 Mar

Keywords

  • Computational modeling
  • Connectivity
  • Contiguity
  • Grain growth
  • Materials design
  • Monte Carlo method
  • Porosity
  • Porous materials
  • Potts model
  • Sintering

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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