Kinetics of nanocrystalline phase transformations in spray pyrolysed ZnO particles
The thermal behavior of ZnO powder obtained by ultrasonic spray pyrolysis of nitrate solution (c=0.8mol/dm3, D0=2.695µm, Tmax=6000C, FG=1.2dm3/min) was investigated using non-isothermal differential scanning calorimetry (DSC, heating rates 5, 10, 15, 20O/min). The exothermic heat effects at the temp...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2002-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2002/1450-53390204179M.pdf |
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| author | Mančić Lidija T. Marinković Zorica V. Milošević Olivera B. |
| author_facet | Mančić Lidija T. Marinković Zorica V. Milošević Olivera B. |
| author_sort | Mančić Lidija T. |
| collection | DOAJ |
| description | The thermal behavior of ZnO powder obtained by ultrasonic spray pyrolysis of nitrate solution (c=0.8mol/dm3, D0=2.695µm, Tmax=6000C, FG=1.2dm3/min) was investigated using non-isothermal differential scanning calorimetry (DSC, heating rates 5, 10, 15, 20O/min). The exothermic heat effects at the temperature range from 350 to 5000C were linked to particles structural data obtained by XRD, SEM and TEM analysis. Produced particles are characterized by uniform submicronic size (D=800nm, BET=4.94m2/g), high phase purity and granular or circular “open” surface due to the presence of primary crystallites (d= 20nm). Observed structural changes during heating of this powder were attributed to simultaneous processes of nucleation and growth of primary crystallites inside the produced particles. |
| format | Article |
| id | doaj-art-34faa109fa514c4cb7afd7edbe5b30ce |
| institution | Kabale University |
| issn | 1450-5339 |
| language | English |
| publishDate | 2002-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-34faa109fa514c4cb7afd7edbe5b30ce2025-02-02T06:04:00ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392002-01-01383-417918710.2298/JMMB0204179MKinetics of nanocrystalline phase transformations in spray pyrolysed ZnO particlesMančić Lidija T.Marinković Zorica V.Milošević Olivera B.The thermal behavior of ZnO powder obtained by ultrasonic spray pyrolysis of nitrate solution (c=0.8mol/dm3, D0=2.695µm, Tmax=6000C, FG=1.2dm3/min) was investigated using non-isothermal differential scanning calorimetry (DSC, heating rates 5, 10, 15, 20O/min). The exothermic heat effects at the temperature range from 350 to 5000C were linked to particles structural data obtained by XRD, SEM and TEM analysis. Produced particles are characterized by uniform submicronic size (D=800nm, BET=4.94m2/g), high phase purity and granular or circular “open” surface due to the presence of primary crystallites (d= 20nm). Observed structural changes during heating of this powder were attributed to simultaneous processes of nucleation and growth of primary crystallites inside the produced particles.http://www.doiserbia.nb.rs/img/doi/1450-5339/2002/1450-53390204179M.pdfnanocrystalline ZnO powdersstructural changesJMA equation |
| spellingShingle | Mančić Lidija T. Marinković Zorica V. Milošević Olivera B. Kinetics of nanocrystalline phase transformations in spray pyrolysed ZnO particles Journal of Mining and Metallurgy. Section B: Metallurgy nanocrystalline ZnO powders structural changes JMA equation |
| title | Kinetics of nanocrystalline phase transformations in spray pyrolysed ZnO particles |
| title_full | Kinetics of nanocrystalline phase transformations in spray pyrolysed ZnO particles |
| title_fullStr | Kinetics of nanocrystalline phase transformations in spray pyrolysed ZnO particles |
| title_full_unstemmed | Kinetics of nanocrystalline phase transformations in spray pyrolysed ZnO particles |
| title_short | Kinetics of nanocrystalline phase transformations in spray pyrolysed ZnO particles |
| title_sort | kinetics of nanocrystalline phase transformations in spray pyrolysed zno particles |
| topic | nanocrystalline ZnO powders structural changes JMA equation |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2002/1450-53390204179M.pdf |
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