In-situ studies on preparation of ZnAl2O4 spinel using microwave reactive sintering technique

Nathalie Peillon; F. Zuo; Christophe Meunier; Sébastien Saunier; Sylvain Marinel; Dominique Goeuriot

doi:10.1016/j.matlet.2015.12.143

Journal articles

In-situ studies on preparation of ZnAl2O4 spinel using microwave reactive sintering technique

Nathalie Peillon ^{1, 2, 3} F. Zuo ^{1, 2, 3} Christophe Meunier ^{1, 2, 3} Sébastien Saunier ^{1, 2, 3} Sylvain Marinel ⁴ 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

4 CRISMAT - Laboratoire de cristallographie et sciences des matériaux

Abstract : The objective of this investigation is to deepen the understanding of microwave effect on the reactive sintering of ceramics powders. The formation of the spinel ZnAl2O4 from Al2O3 and ZnO powders have been studied during conventional and 2.45 GHz microwave-assisted heating processes under the same thermal cycle. The continuous dilatometric curves under both heating processes are presented. The experimental results showed that electromagnetic field had significant influence on reactive sintering: the solid-phase reaction took place at a lower temperature and at a higher rate under microwave heating. Furthermore, the difference in response to electromagnetic field between alumina and ZnO made a different microstructural evolution compared to conventional reactive sintering process.

Keywords : Ceramics ALPHA-ALUMINA In-situ measurement Sintering Microwave processing ZnAl2O4 DENSIFICATION

Document type :

Journal articles

Domain :

Engineering Sciences [physics] / Materials

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https://hal-emse.ccsd.cnrs.fr/emse-01353688
Contributor : Géraldine Fournier-Moulin <>
Submitted on : Friday, August 12, 2016 - 2:08:36 PM
Last modification on : Thursday, July 8, 2021 - 3:26:38 AM

In-situ studies on preparation of ZnAl2O4 spinel using microwave reactive sintering technique

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In-situ studies on preparation of ZnAl2O4 spinel using microwave reactive sintering technique

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