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Discrete element study on the influence of initial coordination numbers on sintering behaviour

: Rasp, T.; Kraft, T.; Riedel, H.

Preprint urn:nbn:de:0011-n-2641545 (1.0 MByte PDF)
MD5 Fingerprint: 6a1625aab84b86f2cf19047a52d7289e
Created on: 5.12.2014

Scripta materialia 69 (2013), No.11-12, pp.805-808
ISSN: 1359-6462
Deutsche Forschungsgemeinschaft DFG
KR 1729/10-2
Journal Article, Electronic Publication
Fraunhofer IWM ()
sintering; modelling; simulation; ceramics; discrete element method

A particle-based simulation approach using the discrete element method (DEM) to simulate solid-state sintering is extended in order to account for variable coordination numbers. The model is applied to green particle configurations with different coordination numbers, but similar green densities. For configurations both with monosized particles and with particles having a size distribution it is shown that a decrease in initial coordination number strongly retards densification. This observation is independent of the selected green density.