Dielectric investigations of La-doped barium titanate
Аутори
Ramoška, TadasBanys, Juras
Sobiestianskas, Ricardas
Vijatović Petrović, Mirjana
Bobić, Jelena
Stojanović, Biljana D
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
In the present paper results of the dielectric investigation of barium titanate (BaTiO3) doped with different
concentrations of lanthanum are presented. Ceramic samples were prepared by the Pechini process. With increased
doping the grain size of ceramics decreases from 2.5 μm in pure samples down to 0.2 μm in 0.5 mol%
La - doped BaTiO3. Ceramics showed maximally enhanced dielectric permittivity around low-, room and hightemperature
phase transitions, which are the phase transitions of the pure BaTiO3. The Curie temperature, TC,
is lowered by 30 K with increase of doping concentration to 0.5 mol% La. Dielectric spectra revealed three
parts: low frequency part which is caused by conductivity process, middle frequency relaxational process part
and high frequency relaxational/polar modes contribution.
Кључне речи:
barium titanate / lanthanum / dielectric spectroscopy / dielectric dispersionИзвор:
Processing and Application of Ceramics, 2010, 4, 3, 193-198Издавач:
- Faculty of Technology, University of Novi Sad
Институција/група
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Ramoška, Tadas AU - Banys, Juras AU - Sobiestianskas, Ricardas AU - Vijatović Petrović, Mirjana AU - Bobić, Jelena AU - Stojanović, Biljana D PY - 2010 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2191 AB - In the present paper results of the dielectric investigation of barium titanate (BaTiO3) doped with different concentrations of lanthanum are presented. Ceramic samples were prepared by the Pechini process. With increased doping the grain size of ceramics decreases from 2.5 μm in pure samples down to 0.2 μm in 0.5 mol% La - doped BaTiO3. Ceramics showed maximally enhanced dielectric permittivity around low-, room and hightemperature phase transitions, which are the phase transitions of the pure BaTiO3. The Curie temperature, TC, is lowered by 30 K with increase of doping concentration to 0.5 mol% La. Dielectric spectra revealed three parts: low frequency part which is caused by conductivity process, middle frequency relaxational process part and high frequency relaxational/polar modes contribution. PB - Faculty of Technology, University of Novi Sad T2 - Processing and Application of Ceramics T1 - Dielectric investigations of La-doped barium titanate EP - 198 IS - 3 SP - 193 VL - 4 DO - 10.2298/PAC1003193R ER -
@article{ author = "Ramoška, Tadas and Banys, Juras and Sobiestianskas, Ricardas and Vijatović Petrović, Mirjana and Bobić, Jelena and Stojanović, Biljana D", year = "2010", abstract = "In the present paper results of the dielectric investigation of barium titanate (BaTiO3) doped with different concentrations of lanthanum are presented. Ceramic samples were prepared by the Pechini process. With increased doping the grain size of ceramics decreases from 2.5 μm in pure samples down to 0.2 μm in 0.5 mol% La - doped BaTiO3. Ceramics showed maximally enhanced dielectric permittivity around low-, room and hightemperature phase transitions, which are the phase transitions of the pure BaTiO3. The Curie temperature, TC, is lowered by 30 K with increase of doping concentration to 0.5 mol% La. Dielectric spectra revealed three parts: low frequency part which is caused by conductivity process, middle frequency relaxational process part and high frequency relaxational/polar modes contribution.", publisher = "Faculty of Technology, University of Novi Sad", journal = "Processing and Application of Ceramics", title = "Dielectric investigations of La-doped barium titanate", pages = "198-193", number = "3", volume = "4", doi = "10.2298/PAC1003193R" }
Ramoška, T., Banys, J., Sobiestianskas, R., Vijatović Petrović, M., Bobić, J.,& Stojanović, B. D.. (2010). Dielectric investigations of La-doped barium titanate. in Processing and Application of Ceramics Faculty of Technology, University of Novi Sad., 4(3), 193-198. https://doi.org/10.2298/PAC1003193R
Ramoška T, Banys J, Sobiestianskas R, Vijatović Petrović M, Bobić J, Stojanović BD. Dielectric investigations of La-doped barium titanate. in Processing and Application of Ceramics. 2010;4(3):193-198. doi:10.2298/PAC1003193R .
Ramoška, Tadas, Banys, Juras, Sobiestianskas, Ricardas, Vijatović Petrović, Mirjana, Bobić, Jelena, Stojanović, Biljana D, "Dielectric investigations of La-doped barium titanate" in Processing and Application of Ceramics, 4, no. 3 (2010):193-198, https://doi.org/10.2298/PAC1003193R . .