Journal
THERMOCHIMICA ACTA
Volume 617, Issue -, Pages 83-89Publisher
ELSEVIER
DOI: 10.1016/j.tca.2015.08.011
Keywords
Cerium dioxide; Thermal conductivity; Dielectric properties; Porosity; Cavity perturbation theory
Funding
- CCEM Project [CCEM-Nr 705]
- Methods of Advanced Waste Treatment (MeAWaT)
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This work presents the experimental determination of the thermal and dielectric properties of conventionally sintered cerium dioxide (CeO2) samples, with a porosity ranging from 3.68 up to 44.33 vol%. The thermal conductivity, the thermal diffusivity and the heat capacity is determined using Laser Flash analysis and Differential Scanning Calorimetry. A cylindrical microwave cavity was developed to measure dielectric properties up to 1000 degrees C. The real and imaginary parts of the relative dielectric permittivity; the dielectric loss factor, are obtained using the cavity perturbation theory in TM012 mode at 2.45 GHz. These parameters can be used as inputs for coupled thermo-mechano-electromagnetic modelling of Ceria sintering. (C) 2015 Elsevier B.V. All rights reserved.
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