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Kinetics of thermally activated processes in cordierite-based ceramics

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2019
JTAC-D-18-01579_R1.pdf (1.671Mb)
Authors
Obradović, Nina
Blagojević, Vladimir A.
Filipović, Suzana
Đorđević, Nataša
Kosanović, Darko
Marković, Smilja
Kachlik, Martin
Maca, Karel
Pavlović, Vladimir B.
Article (Accepted Version)
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Abstract
Thermally activated processes in cordierite-based ceramics were investigated to determine the effect of the mechanical activation and the addition of TeO2 on kinetic and thermodynamic parameters of these processes. Using a combination of dilatometry and DTA measurements in the 100–1400 °C temperature range, it was established that both the mechanical activation and the addition of TeO2 have a significant effect on processes in cordierite-based ceramics. A combination of 5 mass% addition of TeO2 and mechanical activation for 40 min reduced the sintering temperature of cordierite ceramics to around 1100 °C. In addition, the analysis of DTA measurements of mechanically activated samples indicates that the mechanical activation leads to intensification of the cordierite formation through an increase in concentration of surface defects and an increase in grain contact surface in the initial powder.
Keywords:
DTA / sintering kinetics / cordierite / mechanical activation / TeO2
Source:
Journal of Thermal Analysis and Calorimetry, 2019, 138, 2989-2998
Publisher:
  • Springer
Funding / projects:
  • Directed synthesis, structure and properties of multifunctional materials (RS-172057)
  • Czech Science Foundation (GACR) - 17-05620S
  • Ministry of Education, Youth and Sports (MEYS) of Czech Republic - CEITEC 2020 [LQ1601]
Note:
  • This is a post-peer-review, pre-copyedit version of the article: Obradović, N., Blagojević, V., Filipović, S., Đorđević, N., Kosanović, D., Marković, S., Kachlik, M., Maca, K., Pavlović, V., 2018. Kinetics of thermally activated processes in cordierite-based ceramics. J Therm Anal Calorim. https://doi.org/10.1007/s10973-018-7924-1

DOI: 10.1007/s10973-018-7924-1

ISSN: 1588-2926

WoS: 000499706100003

Scopus: 2-s2.0-85057947179
[ Google Scholar ]
3
1
Handle
https://hdl.handle.net/21.15107/rcub_dais_4558
URI
https://dais.sanu.ac.rs/123456789/4558
Collections
  • ИТН САНУ - Општа колекција / ITS SASA - General collection
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASA
TY  - JOUR
AU  - Obradović, Nina
AU  - Blagojević, Vladimir A.
AU  - Filipović, Suzana
AU  - Đorđević, Nataša
AU  - Kosanović, Darko
AU  - Marković, Smilja
AU  - Kachlik, Martin
AU  - Maca, Karel
AU  - Pavlović, Vladimir B.
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/4558
AB  - Thermally activated processes in cordierite-based ceramics were investigated to determine the effect of the mechanical activation and the addition of TeO2 on kinetic and thermodynamic parameters of these processes. Using a combination of dilatometry and DTA measurements in the 100–1400 °C temperature range, it was established that both the mechanical activation and the addition of TeO2 have a significant effect on processes in cordierite-based ceramics. A combination of 5 mass% addition of TeO2 and mechanical activation for 40 min reduced the sintering temperature of cordierite ceramics to around 1100 °C. In addition, the analysis of DTA measurements of mechanically activated samples indicates that the mechanical activation leads to intensification of the cordierite formation through an increase in concentration of surface defects and an increase in grain contact surface in the initial powder.
PB  - Springer
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Kinetics of thermally activated processes in cordierite-based ceramics
SP  - 2989
EP  - 2998
VL  - 138
DO  - 10.1007/s10973-018-7924-1
UR  - https://hdl.handle.net/21.15107/rcub_dais_4558
ER  - 
@article{
author = "Obradović, Nina and Blagojević, Vladimir A. and Filipović, Suzana and Đorđević, Nataša and Kosanović, Darko and Marković, Smilja and Kachlik, Martin and Maca, Karel and Pavlović, Vladimir B.",
year = "2019",
abstract = "Thermally activated processes in cordierite-based ceramics were investigated to determine the effect of the mechanical activation and the addition of TeO2 on kinetic and thermodynamic parameters of these processes. Using a combination of dilatometry and DTA measurements in the 100–1400 °C temperature range, it was established that both the mechanical activation and the addition of TeO2 have a significant effect on processes in cordierite-based ceramics. A combination of 5 mass% addition of TeO2 and mechanical activation for 40 min reduced the sintering temperature of cordierite ceramics to around 1100 °C. In addition, the analysis of DTA measurements of mechanically activated samples indicates that the mechanical activation leads to intensification of the cordierite formation through an increase in concentration of surface defects and an increase in grain contact surface in the initial powder.",
publisher = "Springer",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Kinetics of thermally activated processes in cordierite-based ceramics",
pages = "2989-2998",
volume = "138",
doi = "10.1007/s10973-018-7924-1",
url = "https://hdl.handle.net/21.15107/rcub_dais_4558"
}
Obradović, N., Blagojević, V. A., Filipović, S., Đorđević, N., Kosanović, D., Marković, S., Kachlik, M., Maca, K.,& Pavlović, V. B.. (2019). Kinetics of thermally activated processes in cordierite-based ceramics. in Journal of Thermal Analysis and Calorimetry
Springer., 138, 2989-2998.
https://doi.org/10.1007/s10973-018-7924-1
https://hdl.handle.net/21.15107/rcub_dais_4558
Obradović N, Blagojević VA, Filipović S, Đorđević N, Kosanović D, Marković S, Kachlik M, Maca K, Pavlović VB. Kinetics of thermally activated processes in cordierite-based ceramics. in Journal of Thermal Analysis and Calorimetry. 2019;138:2989-2998.
doi:10.1007/s10973-018-7924-1
https://hdl.handle.net/21.15107/rcub_dais_4558 .
Obradović, Nina, Blagojević, Vladimir A., Filipović, Suzana, Đorđević, Nataša, Kosanović, Darko, Marković, Smilja, Kachlik, Martin, Maca, Karel, Pavlović, Vladimir B., "Kinetics of thermally activated processes in cordierite-based ceramics" in Journal of Thermal Analysis and Calorimetry, 138 (2019):2989-2998,
https://doi.org/10.1007/s10973-018-7924-1 .,
https://hdl.handle.net/21.15107/rcub_dais_4558 .

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