Role of Density and Grain Size on the Electrocaloric Effect in Ba0.90Ca0.10TiO3 Ceramics

Pure perovskite Ba0.90Ca0.10TiO3 ceramics, with a relative density of between 79 and 98% and grain sizes larger than 1 µm, were prepared by solid-state reaction. The dielectric and electrocaloric properties were investigated and discussed considering the density and grain size of the samples. Room t...

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Bibliographic Details
Published in:Materials 2022-11, Vol.15 (21), p.7825
Main Authors: Curecheriu, Lavinia, Buscaglia, Maria Teresa, Lukacs, Vlad Alexandru, Padurariu, Leontin, Ciomaga, Cristina Elena
Format: Article
Language:English
Subjects:
Ceramics
Dielectric properties
Grain size
Permittivity
Perovskites
Phase transitions
Polarization
Room temperature
Sintering
Specific gravity
Temperature
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Summary:Pure perovskite Ba0.90Ca0.10TiO3 ceramics, with a relative density of between 79 and 98% and grain sizes larger than 1 µm, were prepared by solid-state reaction. The dielectric and electrocaloric properties were investigated and discussed considering the density and grain size of the samples. Room temperature impedance measurements show good dielectric properties for all ceramics with relative permittivity between 800 and 1100 and losses of
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15217825