A geometrical sintering model (GSM) to predict surface area change

Kuk Cho, Pratim Biswas

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

A geometrical sintering model (GSM) to predict the surface area variation with time is proposed. Predictions of the GSM are compared to the commonly used Koch and Friedlander [(1990). The effect of particle coalescence on the surface-area of a coagulating aerosol. Journal of Colloid and Interface Science, 140, 419-427] model, mass transport based viscous flow sintering models and to experimental data reported in the literature. Closed form expressions for the normalized surface area variation with time are derived for specific sintering mechanisms such as overall diffusion and viscous flow. For other sintering mechanisms such as surface, grain boundary, and volume diffusion, closed form expressions could be derived by making simplifying assumptions of a reference radius for the primary particles.

Original languageEnglish (US)
Pages (from-to)1378-1387
Number of pages10
JournalJournal of Aerosol Science
Volume37
Issue number10
DOIs
StatePublished - Oct 2006
Externally publishedYes

Keywords

  • Aerosol
  • Sintering model
  • Surface area

ASJC Scopus subject areas

  • Environmental Engineering
  • Pollution
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes
  • Atmospheric Science

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