Abstract
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 44.33vol%. 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°C. The real and imaginary parts of the relative dielectric permittivity; ε′r and ε″r the dielectric loss factor, are obtained using the cavity perturbation theory in TM012 mode at 2.45GHz. These parameters can be used as inputs for coupled thermo-mechano-electromagnetic modelling of Ceria sintering.
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