Accurate Sintering Morphologies From
Monte Carlo Modelling
Author(s)
S. Bordère, D. Gendron, J.-M. Heintz & D. Bernard
Abstract
Through the two-dimensional problems of the sintering of an infinite row and an
infinite square arrangement of mono-sized particles, the relevance of the Monte
Carlo methodology based on the non-discrete energetical model is pointed out to
calculate equilibrium morphologies. In the absence of coarsening, and for the
two cases of free and constrained sintering, the calculated stable morphologies
are shown to precisely superimpose that obtained from analytical resolution.
Therefore, an accurate drawing of surface curvatures and dihedral angles results
from that methodology which is one of the required conditions to deal with more
complex microstructures and to be able to compare the calculated
microstructures with experiments.
Keywords: sintering, Monte Carlo simulation, interfaces, microstructure.
1 Introduction
Grain scale modelling of sintering processes is still the object of many numerical
developments in order to deal with complex microstructures close to real
systems. Two main numerical approaches are distinguishable depending on the
stochastic or deterministic way to solve the problem. In the field of deterministic
methods, the last developments based on the variational principle and the finite
element formulation are demonstrated to be efficient to simulate microstructural
evolution in polycrystalline materials involving surface and grain boundary
diffusion [1]. The phase field modelling is also a very powerful approach to deal
with grain growth and non-densifying sintering processes, producing simulated
microstructure images indistinguishable from real micrographs [2]. In contrast to
the deterministic approach, stochastic modelling minimises an energetical
Keywords
sintering, Monte Carlo simulation, interfaces, microstructure.
Related Book
Other papers in this volume
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