Dilatometric study of the ZnTiO3 phase transition kinetic influenced by nano powder sintering
Abstract
Sintering is often accompanied with phase transition. Phase transition kinetic is thushard to deconvolute due to the superposition of the sintering and phase transition dimensionalchange phenomena. Metastabile perovskite phase ZnTiO3 reforms to stabile spinel Zn2TiO4 at950°C with high kinetic rate. Dimensional change during heating of ZnTiO3 nano powdercompacts up to 1050°C was monitored using dilatometric thermo mechanical analyzer TMAmodel SETSYS Evolution. Shrinkage of simultaneous sintering and phase transition wererecorded. The obtained non-isothermally sintered specimens were then second run treatedwith same schedule. Sintering phenomenon of the ZnTiO3 nanopowder compact was alsorecorded up to 900°C with isothermal holding of 25 minutes. Here phase transition wasavoided with lower temperature and isothermal holding. Second run heating, of isothermallyobtained specimens at 900°C, was recorded with non-isothermal heating schedule to 1050°C.This has led to the dilatometric curve rec...ord of the ZnTiO3 phase transition in polycrystallinebulk specimen, now recorded without sintering. In such a manner when kinetic is complex,the separation of phenomena such as sintering, linear expansion and phase transition areleading to the knowledge of their mutual interconnected relations. Also application ofmathematical operations on dilatometric data leads to the established procedure for thesintering and phase transition data treatment.
Keywords:
sintering / phase transition / ZnTiO3 / nanopowders / perovskitesSource:
2021Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200175 (Institute of Technical Sciences of SASA, Belgrade) (RS-MESTD-inst-2020-200175)
Note:
- Sound recording of the presentation: Labus, Nebojša, Rosić, Milena, Marković, Smilja, Nikolić, Maria Vesna, "Dilatometric study of the ZnTiO3 phase transition kinetic influenced by nano powder sintering" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application IX : New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 20-21. September 2021 (2021):41-41, https://hdl.handle.net/21.15107/rcub_dais_11894
- Conference abstract: https://hdl.handle.net/21.15107/rcub_dais_11894
- Conference presentation: https://hdl.handle.net/21.15107/rcub_dais_11892
Related info:
- Referenced by
https://hdl.handle.net/21.15107/rcub_dais_11892 - Referenced by
https://hdl.handle.net/21.15107/rcub_dais_11894
Institution/Community
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - SOUND AU - Labus, Nebojša PY - 2021 UR - https://dais.sanu.ac.rs/123456789/11893 AB - Sintering is often accompanied with phase transition. Phase transition kinetic is thushard to deconvolute due to the superposition of the sintering and phase transition dimensionalchange phenomena. Metastabile perovskite phase ZnTiO3 reforms to stabile spinel Zn2TiO4 at950°C with high kinetic rate. Dimensional change during heating of ZnTiO3 nano powdercompacts up to 1050°C was monitored using dilatometric thermo mechanical analyzer TMAmodel SETSYS Evolution. Shrinkage of simultaneous sintering and phase transition wererecorded. The obtained non-isothermally sintered specimens were then second run treatedwith same schedule. Sintering phenomenon of the ZnTiO3 nanopowder compact was alsorecorded up to 900°C with isothermal holding of 25 minutes. Here phase transition wasavoided with lower temperature and isothermal holding. Second run heating, of isothermallyobtained specimens at 900°C, was recorded with non-isothermal heating schedule to 1050°C.This has led to the dilatometric curve record of the ZnTiO3 phase transition in polycrystallinebulk specimen, now recorded without sintering. In such a manner when kinetic is complex,the separation of phenomena such as sintering, linear expansion and phase transition areleading to the knowledge of their mutual interconnected relations. Also application ofmathematical operations on dilatometric data leads to the established procedure for thesintering and phase transition data treatment. T1 - Dilatometric study of the ZnTiO3 phase transition kinetic influenced by nano powder sintering UR - https://hdl.handle.net/21.15107/rcub_dais_11893 ER -
@misc{ author = "Labus, Nebojša", year = "2021", abstract = "Sintering is often accompanied with phase transition. Phase transition kinetic is thushard to deconvolute due to the superposition of the sintering and phase transition dimensionalchange phenomena. Metastabile perovskite phase ZnTiO3 reforms to stabile spinel Zn2TiO4 at950°C with high kinetic rate. Dimensional change during heating of ZnTiO3 nano powdercompacts up to 1050°C was monitored using dilatometric thermo mechanical analyzer TMAmodel SETSYS Evolution. Shrinkage of simultaneous sintering and phase transition wererecorded. The obtained non-isothermally sintered specimens were then second run treatedwith same schedule. Sintering phenomenon of the ZnTiO3 nanopowder compact was alsorecorded up to 900°C with isothermal holding of 25 minutes. Here phase transition wasavoided with lower temperature and isothermal holding. Second run heating, of isothermallyobtained specimens at 900°C, was recorded with non-isothermal heating schedule to 1050°C.This has led to the dilatometric curve record of the ZnTiO3 phase transition in polycrystallinebulk specimen, now recorded without sintering. In such a manner when kinetic is complex,the separation of phenomena such as sintering, linear expansion and phase transition areleading to the knowledge of their mutual interconnected relations. Also application ofmathematical operations on dilatometric data leads to the established procedure for thesintering and phase transition data treatment.", title = "Dilatometric study of the ZnTiO3 phase transition kinetic influenced by nano powder sintering", url = "https://hdl.handle.net/21.15107/rcub_dais_11893" }
Labus, N.. (2021). Dilatometric study of the ZnTiO3 phase transition kinetic influenced by nano powder sintering. . https://hdl.handle.net/21.15107/rcub_dais_11893
Labus N. Dilatometric study of the ZnTiO3 phase transition kinetic influenced by nano powder sintering. 2021;. https://hdl.handle.net/21.15107/rcub_dais_11893 .
Labus, Nebojša, "Dilatometric study of the ZnTiO3 phase transition kinetic influenced by nano powder sintering" (2021), https://hdl.handle.net/21.15107/rcub_dais_11893 .