Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA
Само за регистроване кориснике
2016
Аутори
Obradović, NinaĐorđević, Nataša
Filipović, Suzana
Marković, Smilja
Kosanović, Darko
Mitrić, Miodrag
Pavlović, Vladimir B.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Since cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2) (MAS), is a very useful high-temperature ceramic material, it is important to decrease its sintering temperature. In order to accelerate the process of sintering, 5.00 mass% MoO3 was added to the starting mixtures. The mechanical activation of the starting mixtures was performed in a high-energy ball mill in time intervals from 0 to 160 min. After the activation, starting mixtures were sintered at 1300 A degrees C for 2 h. In order to determine the impact of mechanical activation on particle size distribution and powders morphology, the mechanically treated powders were characterized by a laser light-scattering particle size analyzer and scanning electron microscopy. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. In order to determine temperature intervals of chemical reactions and phase transitions, differential thermal analyses (DTA) and thermo-gravimetric... analysis were used. Kissingers equation was employed to calculate apparent activation energies of various processes that occur within the system during heating. Based on the obtained DTA results, it was established that mechanical activation along with MoO3 additive has influence on sintering temperature which was decreased for more than 100 A degrees C, comparing to the literature data.
Кључне речи:
Mechanical activation / DTA-TG / Sintering / Kinetics / CordieriteИзвор:
Journal of Thermal Analysis and Calorimetry, 2016, 124, 2, 667-673Издавач:
- Springer
Финансирање / пројекти:
- Усмерена синтеза, структура и својства мултифункционалних материјала (RS-172057)
- Serbian Academy of Sciences and Arts [F-7/II]
DOI: 10.1007/s10973-015-5132-9
ISSN: 1388-6150; 1572-8943
WoS: 000373576600011
Scopus: 2-s2.0-84976342017
Колекције
Институција/група
VinčaTY - JOUR AU - Obradović, Nina AU - Đorđević, Nataša AU - Filipović, Suzana AU - Marković, Smilja AU - Kosanović, Darko AU - Mitrić, Miodrag AU - Pavlović, Vladimir B. PY - 2016 UR - https://vinar.vin.bg.ac.rs/handle/123456789/999 AB - Since cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2) (MAS), is a very useful high-temperature ceramic material, it is important to decrease its sintering temperature. In order to accelerate the process of sintering, 5.00 mass% MoO3 was added to the starting mixtures. The mechanical activation of the starting mixtures was performed in a high-energy ball mill in time intervals from 0 to 160 min. After the activation, starting mixtures were sintered at 1300 A degrees C for 2 h. In order to determine the impact of mechanical activation on particle size distribution and powders morphology, the mechanically treated powders were characterized by a laser light-scattering particle size analyzer and scanning electron microscopy. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. In order to determine temperature intervals of chemical reactions and phase transitions, differential thermal analyses (DTA) and thermo-gravimetric analysis were used. Kissingers equation was employed to calculate apparent activation energies of various processes that occur within the system during heating. Based on the obtained DTA results, it was established that mechanical activation along with MoO3 additive has influence on sintering temperature which was decreased for more than 100 A degrees C, comparing to the literature data. PB - Springer T2 - Journal of Thermal Analysis and Calorimetry T1 - Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA VL - 124 IS - 2 SP - 667 EP - 673 DO - 10.1007/s10973-015-5132-9 ER -
@article{ author = "Obradović, Nina and Đorđević, Nataša and Filipović, Suzana and Marković, Smilja and Kosanović, Darko and Mitrić, Miodrag and Pavlović, Vladimir B.", year = "2016", abstract = "Since cordierite, 2MgO center dot 2Al(2)O(3)center dot 5SiO(2) (MAS), is a very useful high-temperature ceramic material, it is important to decrease its sintering temperature. In order to accelerate the process of sintering, 5.00 mass% MoO3 was added to the starting mixtures. The mechanical activation of the starting mixtures was performed in a high-energy ball mill in time intervals from 0 to 160 min. After the activation, starting mixtures were sintered at 1300 A degrees C for 2 h. In order to determine the impact of mechanical activation on particle size distribution and powders morphology, the mechanically treated powders were characterized by a laser light-scattering particle size analyzer and scanning electron microscopy. The phase composition of the starting mixtures and sintered samples was analyzed by the X-ray diffraction method. In order to determine temperature intervals of chemical reactions and phase transitions, differential thermal analyses (DTA) and thermo-gravimetric analysis were used. Kissingers equation was employed to calculate apparent activation energies of various processes that occur within the system during heating. Based on the obtained DTA results, it was established that mechanical activation along with MoO3 additive has influence on sintering temperature which was decreased for more than 100 A degrees C, comparing to the literature data.", publisher = "Springer", journal = "Journal of Thermal Analysis and Calorimetry", title = "Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA", volume = "124", number = "2", pages = "667-673", doi = "10.1007/s10973-015-5132-9" }
Obradović, N., Đorđević, N., Filipović, S., Marković, S., Kosanović, D., Mitrić, M.,& Pavlović, V. B.. (2016). Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA. in Journal of Thermal Analysis and Calorimetry Springer., 124(2), 667-673. https://doi.org/10.1007/s10973-015-5132-9
Obradović N, Đorđević N, Filipović S, Marković S, Kosanović D, Mitrić M, Pavlović VB. Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA. in Journal of Thermal Analysis and Calorimetry. 2016;124(2):667-673. doi:10.1007/s10973-015-5132-9 .
Obradović, Nina, Đorđević, Nataša, Filipović, Suzana, Marković, Smilja, Kosanović, Darko, Mitrić, Miodrag, Pavlović, Vladimir B., "Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA" in Journal of Thermal Analysis and Calorimetry, 124, no. 2 (2016):667-673, https://doi.org/10.1007/s10973-015-5132-9 . .