Dodevski, Dragan

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  • Dodevski, Dragan (1)
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Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering

Labus, Nebojša; Rosić, Milena; Čebela, Maria; Jordanov, Dragana; Dodevski, Dragan; Radović, Ivana

(Belgrade : Institute for Multidisciplinary Research, 2019) 

TY  - CONF
AU  - Labus, Nebojša
AU  - Rosić, Milena
AU  - Čebela, Maria
AU  - Jordanov, Dragana
AU  - Dodevski, Dragan
AU  - Radović, Ivana
PY  - 2019
UR  - https://dais.sanu.ac.rs/123456789/7001
AB  - In this study we have combined two research methods: structure prediction of ZnTiO3 using computational SPuDS software, and the characterization of binary oxides obtained from ZnO TiO2 system. Pure nanosized ZnTiO3 (99.5%), was compacted in cylindrical shape specimens by uniaxial double sided compaction and then sintered in air atmosphere in a dilatometric device [1,2]. One compact was sintered up to 915 °C to retain metastabile ZnTiO3 and held 5 minutes on that temperature, and another one at the same conditions, but now up to 970 °C to induce phase transition and to obtain stabile Zn2TiO4 and TiO2 according to phase diagram [2]. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). The infrared attenuated total reflectivity measurements confirmed XRD results. In order to estimate theoretical stability of these perovskite structure, Goldschmidt tolerance factor Gt and global instability index GII were calculated. Furthermore, the Ti valence states were determined by bond valence calculations (BVC). Also, we have investigated the formation of new phases (Zn2Ti3O8, TiO2 and Zn2TiO4) originating from ZnTiO3 with temperature change, as well as the relation between the crystal structures which have been predicted and the structure of the phases we have experimentally observed.
PB  - Belgrade : Institute for Multidisciplinary Research
C3  - Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
T1  - Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering
SP  - 110
EP  - 110
UR  - https://hdl.handle.net/21.15107/rcub_dais_7001
ER  - 
@conference{
author = "Labus, Nebojša and Rosić, Milena and Čebela, Maria and Jordanov, Dragana and Dodevski, Dragan and Radović, Ivana",
year = "2019",
abstract = "In this study we have combined two research methods: structure prediction of ZnTiO3 using computational SPuDS software, and the characterization of binary oxides obtained from ZnO TiO2 system. Pure nanosized ZnTiO3 (99.5%), was compacted in cylindrical shape specimens by uniaxial double sided compaction and then sintered in air atmosphere in a dilatometric device [1,2]. One compact was sintered up to 915 °C to retain metastabile ZnTiO3 and held 5 minutes on that temperature, and another one at the same conditions, but now up to 970 °C to induce phase transition and to obtain stabile Zn2TiO4 and TiO2 according to phase diagram [2]. Reheated samples obtained at different characteristic temperatures in air were analyzed by X-ray diffraction (XRD). The infrared attenuated total reflectivity measurements confirmed XRD results. In order to estimate theoretical stability of these perovskite structure, Goldschmidt tolerance factor Gt and global instability index GII were calculated. Furthermore, the Ti valence states were determined by bond valence calculations (BVC). Also, we have investigated the formation of new phases (Zn2Ti3O8, TiO2 and Zn2TiO4) originating from ZnTiO3 with temperature change, as well as the relation between the crystal structures which have been predicted and the structure of the phases we have experimentally observed.",
publisher = "Belgrade : Institute for Multidisciplinary Research",
journal = "Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia",
title = "Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering",
pages = "110-110",
url = "https://hdl.handle.net/21.15107/rcub_dais_7001"
}
Labus, N., Rosić, M., Čebela, M., Jordanov, D., Dodevski, D.,& Radović, I.. (2019). Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research., 110-110.
https://hdl.handle.net/21.15107/rcub_dais_7001
Labus N, Rosić M, Čebela M, Jordanov D, Dodevski D, Radović I. Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering. in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:110-110.
https://hdl.handle.net/21.15107/rcub_dais_7001 .
Labus, Nebojša, Rosić, Milena, Čebela, Maria, Jordanov, Dragana, Dodevski, Dragan, Radović, Ivana, "Theoretical and experimental study of polycrystalline phases obtained by the nanometric ZnTiO3 powder sintering" in Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):110-110,
https://hdl.handle.net/21.15107/rcub_dais_7001 .