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Coarsening kinetics with elastic effects

Brener1, Marchenko, Muller-Krumbhaar

  • 1Institut fur Festkorperforschung, Forschungszentrum Julich, D-52425 Julich, Germany.

Physical Review Letters
|September 16, 2000
PubMed
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Melt inclusions coarsen and become oblate due to elastic effects. This study reveals new scaling laws for their size evolution, with lateral particle size following R ~ t(5/12).

Area of Science:

  • Materials Science
  • Physics
  • Geology

Background:

  • Melt inclusions within solid phases undergo coarsening.
  • Elastic interactions significantly influence inclusion morphology and behavior.
  • Standard mean-field approximations are insufficient for these complex systems.

Purpose of the Study:

  • To investigate the coarsening dynamics of melt inclusions under elastic effects.
  • To identify and analyze the various length scales governing the system.
  • To derive scaling laws for the coarsening process.

Main Methods:

  • Theoretical analysis of diffusional and elastic interactions.
  • Development of models accounting for multiple length scales.
  • Derivation of scaling laws for particle size evolution.

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Main Results:

  • Elastic effects induce an oblate shape in melt inclusions.
  • Strong coupled diffusional and elastic interactions are observed.
  • A nontrivial growth law, R ~ t(5/12), is determined for the lateral particle size in parallel-oriented systems.

Conclusions:

  • The coarsening of melt inclusions is complex, requiring advanced theoretical approaches.
  • The derived scaling laws provide quantitative insights into particle growth.
  • This work advances the understanding of microstructural evolution in materials.