Microstructural analysis and dielectric performance of spark plasma sintered BaTiO₃ based ceramics for power electronic modules
Abstract
BaTiO₃ is an important ferroelectric ceramic that leads progress across various industries. Spark plasma sintering is a technique used to obtain highly densified ceramics with fine grain sizes. Thermal treatment is often necessary after spark plasma sintering to restore the ceramics’ insulating behavior. The literature on BaTiO₃ is extensive, with reported permittivity values ranging from a few thousand up to several hundred thousand with the latter typically referred to as colossal permittivity. This paper aims to investigate the microstructure and dielectric properties of BaTiO₃ based ceramics exhibiting wide range of permittivity values. BaTiO₃ is shaped by spark plasma sintering followed by annealing for 12, 24, 36, and 48h at 850 °C. High-temperature impedance spectroscopy is performed allowing the modelling of different contributions in the microstructure. The results show that the dielectric characteristics of BaTiO3 are affected by the ongoing reoxidation during the annealing process.
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BibTeX
@article{rashed2026microstructural,
title = {{Microstructural analysis and dielectric performance of spark plasma sintered BaTiO₃ based ceramics for power electronic modules}},
author = {Abdellatif Rashed and Veronika Gavrilenko and Romain Raisson and Sophie Guillemet-Fritsch and Thomas Hérisson de Beauvoir and Aurélie Boisard and Paul-Etienne Vidal},
journal = {Open Ceramics},
year = {2026},
month = oct,
doi = {10.1016/j.oceram.2026.101075},
url = {https://hal.science/hal-05826675v2},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Microstructural analysis and dielectric performance of spark plasma sintered BaTiO₃ based ceramics for power electronic modules
AU - Abdellatif Rashed
AU - Veronika Gavrilenko
AU - Romain Raisson
AU - Sophie Guillemet-Fritsch
AU - Thomas Hérisson de Beauvoir
AU - Aurélie Boisard
AU - Paul-Etienne Vidal
PY - 2026
DA - 2026/10/29
JO - Open Ceramics
DO - 10.1016/j.oceram.2026.101075
UR - https://hal.science/hal-05826675v2
AB - BaTiO₃ is an important ferroelectric ceramic that leads progress across various industries. Spark plasma sintering is a technique used to obtain highly densified ceramics with fine grain sizes. Thermal treatment is often necessary after spark plasma sintering to restore the ceramics’ insulating behavior. The literature on BaTiO₃ is extensive, with reported permittivity values ranging from a few thousand up to several hundred thousand with the latter typically referred to as colossal permittivity. This paper aims to investigate the microstructure and dielectric properties of BaTiO₃ based ceramics exhibiting wide range of permittivity values. BaTiO₃ is shaped by spark plasma sintering followed by annealing for 12, 24, 36, and 48h at 850 °C. High-temperature impedance spectroscopy is performed allowing the modelling of different contributions in the microstructure. The results show that the dielectric characteristics of BaTiO3 are affected by the ongoing reoxidation during the annealing process.
SN - 2666-5395
ER -