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2007
Journal Article
Titel

Simulations of the influence of rearrangement during sintering

Abstract
A three-dimensional application of the discrete element method to free, constrained and pressure-assisted solid-state sintering of powders is presented. Special emphasis is laid on the generation of realistic random initial configuration as well as on the inertia effects. With this method, internal properties such as coordination number and pair correlation function are directly accessible and compare well with theoretical predictions and experimental data. The simulation scheme also enables one to investigate how grain rearrangements on a mesoscopic scale influence macroscopic properties such as densification rate and bulk and shear viscosity. Finally, crack formation during constrained sintering of low-density films is examined.
Author(s)
Henrich, B.
Freiburg Materials Research Center
Wonisch, A.
Fraunhofer-Institut für Werkstoffmechanik IWM
Kraft, T.
Fraunhofer-Institut für Werkstoffmechanik IWM
Moseler, M.
Fraunhofer-Institut für Werkstoffmechanik IWM
Riedel, H.
Fraunhofer-Institut für Werkstoffmechanik IWM
Zeitschrift
Acta Materialia
Funder
Deutsche Forschungsgemeinschaft DFG
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DOI
10.1016/j.actamat.2006.09.005
Language
English
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Fraunhofer-Institut für Werkstoffmechanik IWM
Tags
  • sintering

  • simulation

  • modeling

  • mesostructure

  • discrete element meth...

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