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Thermal heating during microwave processing for cerium oxide particles packing: multiphysics modelling approach. Study of the effect of particle and neck sizes

Abstract : In this work a single mode resonant microwave cavity (2.45 GHz) is loaded with spherical particles. A weakly coupled Electromagnetic-Thermal (EM-thermal) solver is used iteratively to determine how the microscopic geometry (local curvatures between the particles, grain size and neck size) modifies the electromagnetic field, and in turn the thermal field in the particles. The modelling is performed with the conformal Finite Element (FE) solver COMSOL Multiphysics. The dielectric and the thermal properties of cerium oxide (ceria) particles up to 1000 degrees C have been determined in our previous study [1].
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https://hal-emse.ccsd.cnrs.fr/emse-01526904
Contributor : Géraldine Fournier-Moulin <>
Submitted on : Tuesday, May 23, 2017 - 4:18:29 PM
Last modification on : Wednesday, June 24, 2020 - 4:19:11 PM

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  • HAL Id : emse-01526904, version 1

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Hussein Hammoud, François Valdivieso, S. Vaucher. Thermal heating during microwave processing for cerium oxide particles packing: multiphysics modelling approach. Study of the effect of particle and neck sizes . 2015 IEEE MTT-S INTERNATIONAL CONFERENCE ON NUMERICAL ELECTROMAGNETIC AND MULTIPHYSICS MODELING AND OPTIMIZATION (NEMO), Aug 2015, OTTAWA, Canada. ⟨emse-01526904⟩

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