Modeling the Microstructural Evolution During Constrained Sintering

A numerical model able to simulate solid‐state constrained sintering is presented. The model couples an existing kinetic Monte Carlo model for free sintering with a finite element model (FEM) for calculating stresses on a microstructural level. The microstructural response to the local stress as wel...

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Bibliographic Details
Published in:Journal of the American Ceramic Society Vol. 98; no. 11; pp. 3490 - 3495
Main Authors: Bjørk, Rasmus, Frandsen, Hendrik Lund, Pryds, Nini
Format: Journal Article
Language:English
Published: Columbus Blackwell Publishing Ltd 01-11-2015
Wiley Subscription Services, Inc
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Summary:A numerical model able to simulate solid‐state constrained sintering is presented. The model couples an existing kinetic Monte Carlo model for free sintering with a finite element model (FEM) for calculating stresses on a microstructural level. The microstructural response to the local stress as well as the FEM calculation of the stress field from the microstructural evolution is discussed. The sintering behavior of a sample constrained by a rigid substrate is simulated. The constrained sintering results in a larger number of pores near the substrate, as well as anisotropic sintering shrinkage, with significantly enhanced strain in the central upper part of the sample surface, and minimal strain at the edges near the substrate. All these features have also previously been observed experimentally.
Bibliography:istex:65C300579E120EC944B148A59ACFA31F6C36377E
ArticleID:JACE13701
ark:/67375/WNG-HFX758B7-2
Danish Agency for Science, Technology and Innovation (FI) - No. 09-072888
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0002-7820
1551-2916
DOI:10.1111/jace.13701