Dielectric and relaxor behavior of BaBi4Ti4O15 ceramics
Abstract
Barium bismuth titanate BaBi4Ti4O15 (BBiT) ceramics have been prepared using non-conventional solid-state reaction route based on mechanochemical synthesis during intensive milling. The X-ray diffraction method was used to determine phase composition. Dielectric properties were investigated in a wide range of temperatures (20-800 degrees C) and frequencies (1.21 kHz-1 MHz). The broad dielectric constant peaks at temperature T-m is frequently dependent. A modified Curie-Weiss relationship is used to study the diffuseness behavior of a ferroelectric phase transition where value of gamma indicates the degree of diffuseness of barium bismuth titanate ceramics. The dielectric relaxation rate follows the Vogel-Fulcher relation with E-a = 0.013 eV, v(0) = 2.09 x 10(8) Hz and T-f = 651 K. All these parameters indicate that BaBi4Ti4O15 is a relaxor ferroelectric. Ohmic conductivities and associated activation energies were evaluated using impedance spectroscopy.
Keywords:
Solid-state reactions / Microstructure / Impedance spectroscopy / Dielectric response / CeramicsSource:
Journal of Alloys and Compounds, 2010, 499, 2, 221-226Publisher:
- Elsevier Science Sa, Lausanne
Funding / projects:
- Lithuanian research funding institution - Faculty of Physics
- COSTEuropean Cooperation in Science and Technology (COST) [539]
- Synthesis, characterization and activity of organic and coordination composition and their application in (bio) nanotechnology (RS-142010)
- Sinteza nanoprahova i dobijanje keramike i nanokompozita za primenu u novim tehnologijama (RS-142059)
DOI: 10.1016/j.jallcom.2010.03.171
ISSN: 0925-8388
WoS: 000278974900019
Scopus: 2-s2.0-77953230746
Collections
Institution/Community
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Bobić, Jelena AU - Vijatović-Petrović, Mirjana AU - Greicius, S AU - Banys, J AU - Stojanović, Biljana D PY - 2010 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/431 AB - Barium bismuth titanate BaBi4Ti4O15 (BBiT) ceramics have been prepared using non-conventional solid-state reaction route based on mechanochemical synthesis during intensive milling. The X-ray diffraction method was used to determine phase composition. Dielectric properties were investigated in a wide range of temperatures (20-800 degrees C) and frequencies (1.21 kHz-1 MHz). The broad dielectric constant peaks at temperature T-m is frequently dependent. A modified Curie-Weiss relationship is used to study the diffuseness behavior of a ferroelectric phase transition where value of gamma indicates the degree of diffuseness of barium bismuth titanate ceramics. The dielectric relaxation rate follows the Vogel-Fulcher relation with E-a = 0.013 eV, v(0) = 2.09 x 10(8) Hz and T-f = 651 K. All these parameters indicate that BaBi4Ti4O15 is a relaxor ferroelectric. Ohmic conductivities and associated activation energies were evaluated using impedance spectroscopy. PB - Elsevier Science Sa, Lausanne T2 - Journal of Alloys and Compounds T1 - Dielectric and relaxor behavior of BaBi4Ti4O15 ceramics EP - 226 IS - 2 SP - 221 VL - 499 DO - 10.1016/j.jallcom.2010.03.171 ER -
@article{ author = "Bobić, Jelena and Vijatović-Petrović, Mirjana and Greicius, S and Banys, J and Stojanović, Biljana D", year = "2010", abstract = "Barium bismuth titanate BaBi4Ti4O15 (BBiT) ceramics have been prepared using non-conventional solid-state reaction route based on mechanochemical synthesis during intensive milling. The X-ray diffraction method was used to determine phase composition. Dielectric properties were investigated in a wide range of temperatures (20-800 degrees C) and frequencies (1.21 kHz-1 MHz). The broad dielectric constant peaks at temperature T-m is frequently dependent. A modified Curie-Weiss relationship is used to study the diffuseness behavior of a ferroelectric phase transition where value of gamma indicates the degree of diffuseness of barium bismuth titanate ceramics. The dielectric relaxation rate follows the Vogel-Fulcher relation with E-a = 0.013 eV, v(0) = 2.09 x 10(8) Hz and T-f = 651 K. All these parameters indicate that BaBi4Ti4O15 is a relaxor ferroelectric. Ohmic conductivities and associated activation energies were evaluated using impedance spectroscopy.", publisher = "Elsevier Science Sa, Lausanne", journal = "Journal of Alloys and Compounds", title = "Dielectric and relaxor behavior of BaBi4Ti4O15 ceramics", pages = "226-221", number = "2", volume = "499", doi = "10.1016/j.jallcom.2010.03.171" }
Bobić, J., Vijatović-Petrović, M., Greicius, S., Banys, J.,& Stojanović, B. D.. (2010). Dielectric and relaxor behavior of BaBi4Ti4O15 ceramics. in Journal of Alloys and Compounds Elsevier Science Sa, Lausanne., 499(2), 221-226. https://doi.org/10.1016/j.jallcom.2010.03.171
Bobić J, Vijatović-Petrović M, Greicius S, Banys J, Stojanović BD. Dielectric and relaxor behavior of BaBi4Ti4O15 ceramics. in Journal of Alloys and Compounds. 2010;499(2):221-226. doi:10.1016/j.jallcom.2010.03.171 .
Bobić, Jelena, Vijatović-Petrović, Mirjana, Greicius, S, Banys, J, Stojanović, Biljana D, "Dielectric and relaxor behavior of BaBi4Ti4O15 ceramics" in Journal of Alloys and Compounds, 499, no. 2 (2010):221-226, https://doi.org/10.1016/j.jallcom.2010.03.171 . .