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Fully coupled electrothermal and mechanical simulation of the production of complex shapes by spark plasma sintering

Van der Laan, Antoine and Epherre, Romain and Chevallier, Geoffroy and Beynet, Yannick and Weibel, Alicia and Estournès, Claude Fully coupled electrothermal and mechanical simulation of the production of complex shapes by spark plasma sintering. (2021) Journal of the European Ceramic Society, 41 (7). 4252-4263. ISSN 0955-2219

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Official URL: https://doi.org/10.1016/j.jeurceramsoc.2021.02.010

Abstract

The obtention of an accurate mechanical model of the spark plasma sintering (SPS) requires the identification of creep parameters. Those parameters are usually determined experimentally, which involves several tests and could be a source of error for the model predictions. A numerical identification, based on only one SPS experiment per material, allowed the determination of the creep parameters of Al2O3 and TiAl samples. The resulting mechanical model was then coupled with an electro-thermal model of the system to obtain a fully coupled simulation of the SPS. This model can predict the densification behavior not only of simple pellets, but also of complex shape configurations. It accurately predicts the density gradients inside the complex sintered parts as well as the interface distortion during sintering. Thus, numerical simulation can be used as an efficient predictive tool to obtain fully dense objects with the desired geometry.

Item Type:Article
HAL Id:hal-03215788
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Norimat (FRANCE)
Laboratory name:
Funders:
Association Nationale Recherche Technologie - ANRT (France) as part of the CIFRE (Industrial Agreement of Formation by Research) contract n°2017/1026 - Programme Opérationnel FEDER-FSE Midi-Pyrénées et Garonne 2014-2020
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Deposited On:03 May 2021 13:21

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