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

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.
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https://hal-emse.ccsd.cnrs.fr/emse-01063760
Contributor : Géraldine Fournier-Moulin <>
Submitted on : Friday, August 27, 2021 - 4:22:56 PM
Last modification on : Monday, August 30, 2021 - 10:40:22 AM

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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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