TY  - JOUR
AU  - Labus, Nebojsa
AU  - Krstić, Jugoslav
AU  - Matijašević, Srđan
AU  - Pavlović, Vladimir
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/743
AB  - Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550ºC with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed.
AB  - Смеша прахова састављена од ZnO, Mn2O3 (MnCO3) и Fe2O3 комбинације
прахова је показивала ламинацију током пресовања. Поливинил алкохол (PVA) и
комбинација PVA са полиетилен гликолом (PEG) који је додат као пластификатор, су
уведени као полимерно везиво за пресовање оксидних прахова. Везиво је уведено тако
што је формирана суспензија смеше различитих оксида прахова у полимерном
раствору. Концентрације полимера и састави су варирани. Уклањањем растварача
добијени су нови материјали који се састоје од честица оксида повезаних полимерима.
Ови хибридни материјали окарактерисани су методама ометене тоталне рефлексије
фурије трансформисане инфрацрвене спектроскопије (ATR-FTIR) као и
диференцијалне термичке анализе (DTA). Микроструктура је посматрана
трансмисоном електронском микроскопијом (TEM). Оксид-полимер материјали су
пресовани на притиску од 200 MPa и ширење испреска током грејања је праћено у температурском опсегу од собне до 550ºC употребом дилатометра. Нађено је да PVA
формира графт полимер са PEG и да постоји специфична интеракција полимера са
површином честица оксида.
PB  - Belgrade : Association for ETRAN Society
T2  - Science of Sintering
T1  - Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer
EP  - 2023
SP  - 189
VL  - 55
DO  - 10.2298/SOS220828005L
ER  - 

@article{
author = "Labus, Nebojsa and Krstić, Jugoslav and Matijašević, Srđan and Pavlović, Vladimir",
year = "2023",
abstract = "Powder mixture consisted of ZnO, Mn2O3 (MnCO3) and Fe2O3 blended powders, was found laminating during compaction. Polyvinyl alcohol (PVA) and a combination of PVA with polyethylene glycol (PEG) added as a plasticizer, were introduced as polymer binders to improve the compaction of oxide mixtures. It has been done by forming a suspension of oxide mixture and varying the polymer solution concentration and composition. By evaporating the solvent, new materials were obtained, which consist of oxide particles bound via polymer. In such a manner obtained hybrid materials were characterized with attenuated total reflection Fourier transformed infrared (ATR-FTIR) spectroscopy, differential thermal analysis (DTA) and transmission electron microscopy (TEM). The oxide polymer material was compacted at 200 MPa and the expansion of this compact during heating was monitored in temperature range up to 550ºC with dilatometer. It was found that PVA forms graft polymer with PEG and specific interaction with oxide particles surface was revealed., Смеша прахова састављена од ZnO, Mn2O3 (MnCO3) и Fe2O3 комбинације
прахова је показивала ламинацију током пресовања. Поливинил алкохол (PVA) и
комбинација PVA са полиетилен гликолом (PEG) који је додат као пластификатор, су
уведени као полимерно везиво за пресовање оксидних прахова. Везиво је уведено тако
што је формирана суспензија смеше различитих оксида прахова у полимерном
раствору. Концентрације полимера и састави су варирани. Уклањањем растварача
добијени су нови материјали који се састоје од честица оксида повезаних полимерима.
Ови хибридни материјали окарактерисани су методама ометене тоталне рефлексије
фурије трансформисане инфрацрвене спектроскопије (ATR-FTIR) као и
диференцијалне термичке анализе (DTA). Микроструктура је посматрана
трансмисоном електронском микроскопијом (TEM). Оксид-полимер материјали су
пресовани на притиску од 200 MPa и ширење испреска током грејања је праћено у температурском опсегу од собне до 550ºC употребом дилатометра. Нађено је да PVA
формира графт полимер са PEG и да постоји специфична интеракција полимера са
површином честица оксида.",
publisher = "Belgrade : Association for ETRAN Society",
journal = "Science of Sintering",
title = "Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer",
pages = "2023-189",
volume = "55",
doi = "10.2298/SOS220828005L"
}

Labus, N., Krstić, J., Matijašević, S.,& Pavlović, V.. (2023). Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer. in Science of Sintering
Belgrade : Association for ETRAN Society., 55, 189-2023.
https://doi.org/10.2298/SOS220828005L

Labus N, Krstić J, Matijašević S, Pavlović V. Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer. in Science of Sintering. 2023;55:189-2023.
doi:10.2298/SOS220828005L .

Labus, Nebojsa, Krstić, Jugoslav, Matijašević, Srđan, Pavlović, Vladimir, "Oxide Powder Mixture with Poly-vinyl Alcohol (PVA) and added Polyethylene Glycol (PEG) as Plasticizer" in Science of Sintering, 55 (2023):189-2023,
https://doi.org/10.2298/SOS220828005L . .

TY  - CONF
AU  - Labus, Nebojsa
AU  - Marković, Smilja
AU  - Nikolić, Maria Vesna
AU  - Rosić, Milena
AU  - Matijašević, Srđan
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/742
AB  - Sintering and phase transition are often superimposed at dimensional change diagram recorded during heating. Phase transition kinetic is thus hard to deconvolute due to the superposition of the sintering and phase transition dimensional change phenomena. 
Metastabile perovskite phase ZnTiO3 has transition to stabile spinel Zn2TiO4 which occurs at 945oC with high kinetic rate. Nano powder with 40 nm particle diameter was pressed uniaxially at 200 MPa pressure without binder to form compact that will be consequently sintered. Dimensional change during heating was monitored using dilatometric thermo-mechanical analyzer TMA model SETSYS Evolution. Lever`s rule was used to calculate amount of the emerging phase during phase transition.
The compacted specimens were treated on the non-isothermal schedule up to 1050oC.Sintering phenomenon of the ZnTiO3 nanopowder compact was also recorded up to 900oC with isothermal holding of 25 minutes where phase transition was avoided due to lower temperature and isothermal holding. Second run heating of the obtained sintered specimens were recorded with the heating schedule of non-isothermal heating up to 1050oC.
Kinetic of the phase transition was obtained from dilatograms recorded during sintering and from bulk on the second run heating. Furthermore, phase transition kinetics was obtained by subsequent data subtraction of the sintering curves without phase transition from the dilatation sintering curves containing phase transition.
In such a manner complex kinetics of phenomena such as sintering, linear expansion and phase transition recorded as dimensional change during heating brings the recognition of their mutual interconnected relations. Also application of these mathematical operations on dilatometric data leads to the established procedure for the sintering and phase transition data treatment.
PB  - Belgrade : Association for ETRAN Society
C3  - IX International Conference IcETRAN and LXVI ETRAN Conference
T1  - Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution
EP  - 471
SP  - 464
ER  - 

@conference{
author = "Labus, Nebojsa and Marković, Smilja and Nikolić, Maria Vesna and Rosić, Milena and Matijašević, Srđan",
year = "2022",
abstract = "Sintering and phase transition are often superimposed at dimensional change diagram recorded during heating. Phase transition kinetic is thus hard to deconvolute due to the superposition of the sintering and phase transition dimensional change phenomena. 
Metastabile perovskite phase ZnTiO3 has transition to stabile spinel Zn2TiO4 which occurs at 945oC with high kinetic rate. Nano powder with 40 nm particle diameter was pressed uniaxially at 200 MPa pressure without binder to form compact that will be consequently sintered. Dimensional change during heating was monitored using dilatometric thermo-mechanical analyzer TMA model SETSYS Evolution. Lever`s rule was used to calculate amount of the emerging phase during phase transition.
The compacted specimens were treated on the non-isothermal schedule up to 1050oC.Sintering phenomenon of the ZnTiO3 nanopowder compact was also recorded up to 900oC with isothermal holding of 25 minutes where phase transition was avoided due to lower temperature and isothermal holding. Second run heating of the obtained sintered specimens were recorded with the heating schedule of non-isothermal heating up to 1050oC.
Kinetic of the phase transition was obtained from dilatograms recorded during sintering and from bulk on the second run heating. Furthermore, phase transition kinetics was obtained by subsequent data subtraction of the sintering curves without phase transition from the dilatation sintering curves containing phase transition.
In such a manner complex kinetics of phenomena such as sintering, linear expansion and phase transition recorded as dimensional change during heating brings the recognition of their mutual interconnected relations. Also application of these mathematical operations on dilatometric data leads to the established procedure for the sintering and phase transition data treatment.",
publisher = "Belgrade : Association for ETRAN Society",
journal = "IX International Conference IcETRAN and LXVI ETRAN Conference",
title = "Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution",
pages = "471-464"
}

Labus, N., Marković, S., Nikolić, M. V., Rosić, M.,& Matijašević, S.. (2022). Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution. in IX International Conference IcETRAN and LXVI ETRAN Conference
Belgrade : Association for ETRAN Society., 464-471.

Labus N, Marković S, Nikolić MV, Rosić M, Matijašević S. Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution. in IX International Conference IcETRAN and LXVI ETRAN Conference. 2022;:464-471..

Labus, Nebojsa, Marković, Smilja, Nikolić, Maria Vesna, Rosić, Milena, Matijašević, Srđan, "Sintering and Phase Transition of the ZnTiO3 Nano Powder Dilatometric Data Deconvolution" in IX International Conference IcETRAN and LXVI ETRAN Conference (2022):464-471.