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

Fei Zuo; Sébastien Saunier; Christophe Meunier; Dominique Goeuriot

doi:10.1016/j.scriptamat.2013.05.016

Journal articles

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 - 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

Document type :

Journal articles

Domain :

Engineering Sciences [physics] / Materials

Complete list of metadata

https://hal-emse.ccsd.cnrs.fr/emse-01063760
Contributor : Géraldine Fournier-Moulin <>
Submitted on : Friday, September 12, 2014 - 5:56:22 PM
Last modification on : Wednesday, June 24, 2020 - 4:19:09 PM

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

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

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