Reaction kinetics of mechanically activated cordierite-based ceramics studied via DTA
Authorized Users Only
2016
Authors
Obradović, NinaĐorđević, Nataša
Filipović, Suzana
Marković, Smilja
Kosanović, Darko
Mitrić, Miodrag
Pavlović, Vladimir B.
Article (Published version)
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Show full item recordAbstract
Since cordierite, 2MgO·2Al2O3·5SiO2 (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 °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. Kissinger’s equ...ation 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 °C, comparing to the literature data.
Keywords:
Mechanical activation / DTA–TG / Sintering / Kinetics / CordieriteSource:
Journal of Thermal Analysis and Calorimetry, 2016, 124, 2, 667-673Publisher:
- Springer
Funding / projects:
- Directed synthesis, structure and properties of multifunctional materials (RS-172057)
- Serbian Academy of Sciences and Arts, Project F-7
DOI: 10.1007/s10973-015-5132-9
ISSN: 1388-6150
WoS: 000373576600011
Scopus: 2-s2.0-84976342017
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - 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://dais.sanu.ac.rs/123456789/15995 AB - Since cordierite, 2MgO·2Al2O3·5SiO2 (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 °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. Kissinger’s 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 °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 SP - 667 EP - 673 VL - 124 IS - 2 DO - 10.1007/s10973-015-5132-9 UR - https://hdl.handle.net/21.15107/rcub_dais_15995 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·2Al2O3·5SiO2 (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 °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. Kissinger’s 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 °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", pages = "667-673", volume = "124", number = "2", doi = "10.1007/s10973-015-5132-9", url = "https://hdl.handle.net/21.15107/rcub_dais_15995" }
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 https://hdl.handle.net/21.15107/rcub_dais_15995
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 https://hdl.handle.net/21.15107/rcub_dais_15995 .
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 ., https://hdl.handle.net/21.15107/rcub_dais_15995 .