http://hdl.handle.net/20.500.12128/17891
Tytuł: | Dielectric and electrical properties of BLT ceramics modified by Fe ions |
Autor: | Wodecka-Duś, Beata Goryczka, Tomasz Adamczyk-Habrajska, Małgorzata Bara, Mateusz Dzik, Jolanta Szalbot, Diana |
Słowa kluczowe: | traditional ceramics; BLTF; X-ray di raction (XRD); dielectric properties; electrical properties |
Data wydania: | 2020 |
Źródło: | "Materials" (2020), iss. 24, art. no. 5623, s. 1-13 |
Abstrakt: | The solid solution of the perovskite type structure Ba0.996La0.004Ti1yFeyO3 (BLTF) for varying iron content (y = 0.10.4 mol.%) was obtained as a result of a solid state reaction using the conventional method. At room temperature (Tr < TC), the as-received ceramics reveals a single-phase, tetragonal structure and a P4mm space group. An increase in the iron content causes a slight decrease in the volume of the elementary cell. In addition, this admixture significantly reduces the maximum permittivity value ("m) and the shift of the phase transition temperature (TC) towards lower temperatures. The BLTF solid solution shows a classical phase transition and low values of dielectric loss tangent (tg ), both at room temperature and in the phase transition area. The Curie–Weiss temperature (T0) and Curie constant (C) were also determined on the basis of the dielectric measurements results. The analysis of temperature changes in DC conductivity revealed presence of the positive temperature coe cient of resistivity (PTCR) e ect in the phase transition area. |
URI: | http://hdl.handle.net/20.500.12128/17891 |
DOI: | 10.3390/ma13245623 |
ISSN: | 1996-1944 |
Pojawia się w kolekcji: | Artykuły (WNŚiT) |
Plik | Opis | Rozmiar | Format | |
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Wodecka_Dus_Goryczka_dielectric_and_electrical_properties.pdf | 7,42 MB | Adobe PDF | Przejrzyj / Otwórz |
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