The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics
Само за регистроване кориснике
2014
Аутори
Kosanović, DarkoŽivojinović, Jelena
Obradović, Nina
Pavlović, Vera P.
Pavlović, Vladimir B.
Peleš, Adriana
Ristić, Momčilo M.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2–anatase). Non-activated mixtures and mixtures mechanically activated in a high-energy planetary ball mill (0, 5, 10, 20, 40, 80 and 120 min) were sintered at 1100, 1200, 1300 and 1400 °C for 2 h in air atmosphere. Defects and the effect of the beginning of the sintering process on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent and resistivity as the function of frequency XC=f(log ν)) were performed for ceramics sintered at 1400 °C for 2 h. It has been found that mechanical activation can reduce the sintering temperature by around 100 °C, which leads to significant energy savings. Furthermore, activated for 80 min and sintered at 1400 °C for 2 h exhibit the largest density values and have about 36% ...lower dielectric loss at a frequency of 1 kHz and about 57% at a frequency of 10 kHz than the samples obtained from the initial non-activated powder sintered under the same conditions.
Кључне речи:
Sintering / Milling / Electrical propertiesИзвор:
Ceramics International, 2014, 40, 8, 11883-11888Издавач:
- Elsevier Sci Ltd, Oxford
Финансирање / пројекти:
- Усмерена синтеза, структура и својства мултифункционалних материјала (RS-MESTD-Basic Research (BR or ON)-172057)
- Serbian Academy of Sciences and Arts [F/198]
DOI: 10.1016/j.ceramint.2014.04.023
ISSN: 0272-8842
WoS: 000340328600051
Scopus: 2-s2.0-84903899502
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Kosanović, Darko AU - Živojinović, Jelena AU - Obradović, Nina AU - Pavlović, Vera P. AU - Pavlović, Vladimir B. AU - Peleš, Adriana AU - Ristić, Momčilo M. PY - 2014 UR - https://machinery.mas.bg.ac.rs/handle/123456789/1918 AB - Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2–anatase). Non-activated mixtures and mixtures mechanically activated in a high-energy planetary ball mill (0, 5, 10, 20, 40, 80 and 120 min) were sintered at 1100, 1200, 1300 and 1400 °C for 2 h in air atmosphere. Defects and the effect of the beginning of the sintering process on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent and resistivity as the function of frequency XC=f(log ν)) were performed for ceramics sintered at 1400 °C for 2 h. It has been found that mechanical activation can reduce the sintering temperature by around 100 °C, which leads to significant energy savings. Furthermore, activated for 80 min and sintered at 1400 °C for 2 h exhibit the largest density values and have about 36% lower dielectric loss at a frequency of 1 kHz and about 57% at a frequency of 10 kHz than the samples obtained from the initial non-activated powder sintered under the same conditions. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics EP - 11888 IS - 8 SP - 11883 VL - 40 DO - 10.1016/j.ceramint.2014.04.023 ER -
@article{ author = "Kosanović, Darko and Živojinović, Jelena and Obradović, Nina and Pavlović, Vera P. and Pavlović, Vladimir B. and Peleš, Adriana and Ristić, Momčilo M.", year = "2014", abstract = "Ferroelectric barium strontium titanate (Ba0.77Sr0.23TiO3), BST, was prepared by solid-state reactions using as the starting compounds powder of barium carbonate (BaCO3), strontium carbonate (SrCO3) and titanium dioxide (TiO2–anatase). Non-activated mixtures and mixtures mechanically activated in a high-energy planetary ball mill (0, 5, 10, 20, 40, 80 and 120 min) were sintered at 1100, 1200, 1300 and 1400 °C for 2 h in air atmosphere. Defects and the effect of the beginning of the sintering process on the microstructure were investigated by scanning electron microscopy (SEM). Electrical measurements (loss tangent and resistivity as the function of frequency XC=f(log ν)) were performed for ceramics sintered at 1400 °C for 2 h. It has been found that mechanical activation can reduce the sintering temperature by around 100 °C, which leads to significant energy savings. Furthermore, activated for 80 min and sintered at 1400 °C for 2 h exhibit the largest density values and have about 36% lower dielectric loss at a frequency of 1 kHz and about 57% at a frequency of 10 kHz than the samples obtained from the initial non-activated powder sintered under the same conditions.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics", pages = "11888-11883", number = "8", volume = "40", doi = "10.1016/j.ceramint.2014.04.023" }
Kosanović, D., Živojinović, J., Obradović, N., Pavlović, V. P., Pavlović, V. B., Peleš, A.,& Ristić, M. M.. (2014). The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics. in Ceramics International Elsevier Sci Ltd, Oxford., 40(8), 11883-11888. https://doi.org/10.1016/j.ceramint.2014.04.023
Kosanović D, Živojinović J, Obradović N, Pavlović VP, Pavlović VB, Peleš A, Ristić MM. The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics. in Ceramics International. 2014;40(8):11883-11888. doi:10.1016/j.ceramint.2014.04.023 .
Kosanović, Darko, Živojinović, Jelena, Obradović, Nina, Pavlović, Vera P., Pavlović, Vladimir B., Peleš, Adriana, Ristić, Momčilo M., "The influence of mechanical activation on the electrical properties of Ba0.77Sr0.23TiO3 ceramics" in Ceramics International, 40, no. 8 (2014):11883-11888, https://doi.org/10.1016/j.ceramint.2014.04.023 . .