LaFeO3 Dielectric Fired by Spark Plasma Sintering: First Experiences

0571804 - ÚFP 2024 RIV DE eng C - Konferenční příspěvek (zahraniční konf.)
Ctibor, Pavel - Sedláček, J. - Straka, L. … celkem 4 autorů
LaFeO3 Dielectric Fired by Spark Plasma Sintering: First Experiences.
Proceedings of International Workshop on Impedance Spectroscopy. Chemnitz: Institute of Electrical and Electronics Engineers Inc., 2022, s. 92-94. ISBN 979-835031039-9.
[International Workshop on Impedance Spectroscopy, IWIS 2022. Chemnitz (DE), 27.09.2022-30.09.2022]
Institucionální podpora: RVO:61389021
Klíčová slova: perovskite * LaFeO3 * dielectrics * spark plasma sintering
Obor OECD: Materials engineering

LaFeO3 commercial powder was fired by spark plasma sintering. Microstructure with homogeneous grain size and certain porosity was produced. Microhardness of the compact was rather high. The dielectric measurements showed high permittivity, but very frequency dependent, associated also with a high loss tangent. Analysis of the data showed high contribution of grain boundaries to the total impedance. The results roughly agree with the literature.
Trvalý link: https://hdl.handle.net/11104/0342703