Modeling diffusional coarsening in eutectic tin/lead solders: a quantitative approach

W. Dreyer, Wolfgang Muller

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44 Citations (Scopus)


This paper presents a quantitative simulation of the phase separation and coarsening phenomenon in eutectic tin/lead (SnPb) solders. The computer modeling is based on continuum theory and phase field models that were evaluated using the most recently available data for the free energy of the tin/lead system, diffusional and mobility coefficients, elastic constants as well as surface tensions of both phases. The model presented allows us to study the influence as well as the interaction between classical diffusion of the Fickean type, surface energies according to Cahn and Hilliard, as well as stresses and strains on phase separation and coarsening. An attempt is made to compare the temporal development of a eutectic SnPb microstructure at different temperature levels and subjected to different stress levels as predicted by the model to actual experiments. © 2001 Elsevier Science Ltd.

Original languageEnglish
Pages (from-to)1433-1458
Number of pages26
JournalInternational Journal of Solids and Structures
Issue number8
Publication statusPublished - Feb 2001


  • Coarsening
  • Modeling
  • Tin/lead solders


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