Non-thermal effect on densification kinetics during microwave sintering of alpha-alumina

Fei Zuo 1, 2, 3 Sébastien Saunier 1, 2, 3 Christophe Meunier 1, 2, 3 Dominique Goeuriot 1, 2, 3
1 MPE-ENSMSE - Département Mécanique et Procédés d'Elaboration
2 SMS-ENSMSE - Centre Science des Matériaux et des Structures
3 LGF-ENSMSE - UMR 5307 - Laboratoire Georges Friedel
Abstract : The microstructural evolution and densification kinetics of a-alumina were investigated and compared between conventional sintering and microwave sintering at 2.45 GHz in the intermediate stage, where the microwave seems to be the most efficient. Based on classical kinetics models, the calculated kinetics parameter demonstrated that the densification is greatly influenced by the presence of an electromagnetic field during sintering. It was assumed that the grain boundary diffusion is enhanced by an electromagnetic pressure induced by the microwave. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
Keywords : Sintering Kinetics Grain growth Electromagnetic pressure DIFFUSION CERAMICS FIELD
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Article dans une revue
Scripta Materialia, Elsevier, 2013, 69 (4), pp.331-333. 〈10.1016/j.scriptamat.2013.05.016〉
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https://hal-emse.ccsd.cnrs.fr/emse-01063760
Contributeur : Géraldine Fournier-Moulin <>
Soumis le : vendredi 12 septembre 2014 - 17:56:22
Dernière modification le : mercredi 29 novembre 2017 - 10:06:55

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Fei Zuo, Sébastien Saunier, Christophe Meunier, Dominique Goeuriot. Non-thermal effect on densification kinetics during microwave sintering of alpha-alumina. Scripta Materialia, Elsevier, 2013, 69 (4), pp.331-333. 〈10.1016/j.scriptamat.2013.05.016〉. 〈emse-01063760〉

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