Influence of mechanochemical activation on the thermal behavior of pyrophyllite
Аутори
Mitrović Rajić, AnđelaPantić, Tijana
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Milošević-Govedarović, Sanja
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Paskaš Mamula, Bojana
Filipović, Nenad
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Grbović Novaković, Jasmina
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Dimitrijević, Silvana
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
The effect of mechanical milling on the thermal behavior of pyrophyllite ore from a deposit in Parsovići, Bosnia and Herzegovina, was characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Particle size distribution. The thermal behavior of the material was followed by thermogravimetric and differential thermal analysis and correlated to its microstructural properties. The Williamson-Hall model was used to calculate the crystallite size and microstrain. Mechanochemical treatment of pyrophyllite ore produced a substantial structural modification, mainly along the c axis, resulting in disorder and partial degradation of the crystal structure of the ore. The particle size diminution, induced defects, and microstrain in the crystal lattice cause decrease in the peak intensity until the final disappearance. As confirmed by scanning electron microscopy and particle-size-distribution analysis, the surface area and the agglomeratio...n is more pronounced as grinding time increases. Dehydroxylation of the minerals in the unmilled ore was realized at 716oC confirm by FTIR analysis. The endothermic peak that corresponds to dehydroxylation is shifted toward lower temperatures and becomes broad giving rise to the formation of amorphous SiO2 as milling time increases.
Кључне речи:
thermal behavior / ceramics / pyrophyllite clay / mechanochemistryИзвор:
Science of Sintering, 2023, 55, 4, 453-467Издавач:
- Belgrade : ETRAN
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
Институција/група
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - JOUR AU - Mitrović Rajić, Anđela AU - Pantić, Tijana AU - Milošević-Govedarović, Sanja AU - Paskaš Mamula, Bojana AU - Filipović, Nenad AU - Grbović Novaković, Jasmina AU - Dimitrijević, Silvana PY - 2023 UR - https://dais.sanu.ac.rs/123456789/16244 AB - The effect of mechanical milling on the thermal behavior of pyrophyllite ore from a deposit in Parsovići, Bosnia and Herzegovina, was characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Particle size distribution. The thermal behavior of the material was followed by thermogravimetric and differential thermal analysis and correlated to its microstructural properties. The Williamson-Hall model was used to calculate the crystallite size and microstrain. Mechanochemical treatment of pyrophyllite ore produced a substantial structural modification, mainly along the c axis, resulting in disorder and partial degradation of the crystal structure of the ore. The particle size diminution, induced defects, and microstrain in the crystal lattice cause decrease in the peak intensity until the final disappearance. As confirmed by scanning electron microscopy and particle-size-distribution analysis, the surface area and the agglomeration is more pronounced as grinding time increases. Dehydroxylation of the minerals in the unmilled ore was realized at 716oC confirm by FTIR analysis. The endothermic peak that corresponds to dehydroxylation is shifted toward lower temperatures and becomes broad giving rise to the formation of amorphous SiO2 as milling time increases. PB - Belgrade : ETRAN T2 - Science of Sintering T1 - Influence of mechanochemical activation on the thermal behavior of pyrophyllite SP - 453 EP - 467 VL - 55 IS - 4 DO - 10.2298/SOS220715018M UR - https://hdl.handle.net/21.15107/rcub_dais_16244 ER -
@article{ author = "Mitrović Rajić, Anđela and Pantić, Tijana and Milošević-Govedarović, Sanja and Paskaš Mamula, Bojana and Filipović, Nenad and Grbović Novaković, Jasmina and Dimitrijević, Silvana", year = "2023", abstract = "The effect of mechanical milling on the thermal behavior of pyrophyllite ore from a deposit in Parsovići, Bosnia and Herzegovina, was characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and Particle size distribution. The thermal behavior of the material was followed by thermogravimetric and differential thermal analysis and correlated to its microstructural properties. The Williamson-Hall model was used to calculate the crystallite size and microstrain. Mechanochemical treatment of pyrophyllite ore produced a substantial structural modification, mainly along the c axis, resulting in disorder and partial degradation of the crystal structure of the ore. The particle size diminution, induced defects, and microstrain in the crystal lattice cause decrease in the peak intensity until the final disappearance. As confirmed by scanning electron microscopy and particle-size-distribution analysis, the surface area and the agglomeration is more pronounced as grinding time increases. Dehydroxylation of the minerals in the unmilled ore was realized at 716oC confirm by FTIR analysis. The endothermic peak that corresponds to dehydroxylation is shifted toward lower temperatures and becomes broad giving rise to the formation of amorphous SiO2 as milling time increases.", publisher = "Belgrade : ETRAN", journal = "Science of Sintering", title = "Influence of mechanochemical activation on the thermal behavior of pyrophyllite", pages = "453-467", volume = "55", number = "4", doi = "10.2298/SOS220715018M", url = "https://hdl.handle.net/21.15107/rcub_dais_16244" }
Mitrović Rajić, A., Pantić, T., Milošević-Govedarović, S., Paskaš Mamula, B., Filipović, N., Grbović Novaković, J.,& Dimitrijević, S.. (2023). Influence of mechanochemical activation on the thermal behavior of pyrophyllite. in Science of Sintering Belgrade : ETRAN., 55(4), 453-467. https://doi.org/10.2298/SOS220715018M https://hdl.handle.net/21.15107/rcub_dais_16244
Mitrović Rajić A, Pantić T, Milošević-Govedarović S, Paskaš Mamula B, Filipović N, Grbović Novaković J, Dimitrijević S. Influence of mechanochemical activation on the thermal behavior of pyrophyllite. in Science of Sintering. 2023;55(4):453-467. doi:10.2298/SOS220715018M https://hdl.handle.net/21.15107/rcub_dais_16244 .
Mitrović Rajić, Anđela, Pantić, Tijana, Milošević-Govedarović, Sanja, Paskaš Mamula, Bojana, Filipović, Nenad, Grbović Novaković, Jasmina, Dimitrijević, Silvana, "Influence of mechanochemical activation on the thermal behavior of pyrophyllite" in Science of Sintering, 55, no. 4 (2023):453-467, https://doi.org/10.2298/SOS220715018M ., https://hdl.handle.net/21.15107/rcub_dais_16244 .