TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Krstić, Jugoslav
AU  - Šćepanović, M.
AU  - Pavlović, Vladimir B.
AU  - Paunović, Vesna
AU  - Ristić, Momčilo M.
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/442
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2861
AB  - In this article the influence of ball milling process on structure of MgO-TiO2 system, along with its influence on electrical properties of post-sintering samples, were investigated. Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results were obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 5.5 m2/g. The influence of mechanical activation on lattice vibration spectra was examined by Raman spectroscopy at room temperature. For sintered samples characterization, Raman scattering spectroscopy has been used. Very similar spectra for all samples were observed. Raman spectroscopy of sintered samples indicates a presence of two phases, while varieties in spectra were explained with different ratio of present phases. Effect of activation and sintering process on microstructure was investigated by scanning electron microscopy (SEM). Electrical measurements showed difference in dielectric constant (εr), loss tangent (tgδ) and specific resistance (ρ) as a function of time of mechanical treatment.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
T1  - Structural characterization and electrical properties of sintered magnesium-titanate ceramics
SP  - 80
EP  - 80
UR  - https://hdl.handle.net/21.15107/rcub_dais_442
ER  - 

@conference{
author = "Filipović, Suzana and Obradović, Nina and Krstić, Jugoslav and Šćepanović, M. and Pavlović, Vladimir B. and Paunović, Vesna and Ristić, Momčilo M.",
year = "2012",
abstract = "In this article the influence of ball milling process on structure of MgO-TiO2 system, along with its influence on electrical properties of post-sintering samples, were investigated. Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results were obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 5.5 m2/g. The influence of mechanical activation on lattice vibration spectra was examined by Raman spectroscopy at room temperature. For sintered samples characterization, Raman scattering spectroscopy has been used. Very similar spectra for all samples were observed. Raman spectroscopy of sintered samples indicates a presence of two phases, while varieties in spectra were explained with different ratio of present phases. Effect of activation and sintering process on microstructure was investigated by scanning electron microscopy (SEM). Electrical measurements showed difference in dielectric constant (εr), loss tangent (tgδ) and specific resistance (ρ) as a function of time of mechanical treatment.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts",
title = "Structural characterization and electrical properties of sintered magnesium-titanate ceramics",
pages = "80-80",
url = "https://hdl.handle.net/21.15107/rcub_dais_442"
}

Filipović, S., Obradović, N., Krstić, J., Šćepanović, M., Pavlović, V. B., Paunović, V.,& Ristić, M. M.. (2012). Structural characterization and electrical properties of sintered magnesium-titanate ceramics. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 80-80.
https://hdl.handle.net/21.15107/rcub_dais_442

Filipović S, Obradović N, Krstić J, Šćepanović M, Pavlović VB, Paunović V, Ristić MM. Structural characterization and electrical properties of sintered magnesium-titanate ceramics. in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts. 2012;:80-80.
https://hdl.handle.net/21.15107/rcub_dais_442 .

Filipović, Suzana, Obradović, Nina, Krstić, Jugoslav, Šćepanović, M., Pavlović, Vladimir B., Paunović, Vesna, Ristić, Momčilo M., "Structural characterization and electrical properties of sintered magnesium-titanate ceramics" in The Fourteenth Annual Conference YUCOMAT 2012: Programme and the Book of Abstracts (2012):80-80,
https://hdl.handle.net/21.15107/rcub_dais_442 .

TY  - CONF
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Krstić, Jugoslav
AU  - Kosanović, Darko
AU  - Šćepanović, M.
AU  - Pavlović, Vladimir B.
AU  - Maričić, Aleksa
AU  - Ristić, Momčilo M.
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/629
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2611
AB  - Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results are obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 4.4 m2/g. The influence of mechanical activation on lattice vibrational spectra was examined by Raman spectroscopy at room temperatures. The differential thermal analysis has been performed in order to investigate thermal behavior of the mixtures, indicating at several endothermal peaks in range of RT to 1100oC. SEM gave information about changes in microstructures, showing the clear decrease in particle size.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
T1  - Structural characterization of mechanically activated MgO-TiO2 system
SP  - 101
EP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_dais_629
ER  - 

@conference{
author = "Filipović, Suzana and Obradović, Nina and Krstić, Jugoslav and Kosanović, Darko and Šćepanović, M. and Pavlović, Vladimir B. and Maričić, Aleksa and Ristić, Momčilo M.",
year = "2011",
abstract = "Mixtures of MgO-TiO2 powders were mechanically activated in a planetary ball mill for time interval from 0 to 120 minutes. On thus obtained powders, structural investigations have been performed. N2 adsorption method was used to determine the BET specific surface area and pore size distribution. Unusual results are obtained: specific surface area continuously decreases up to 40 minutes of activation and after that increases, reaching its minimum value of 4.4 m2/g. The influence of mechanical activation on lattice vibrational spectra was examined by Raman spectroscopy at room temperatures. The differential thermal analysis has been performed in order to investigate thermal behavior of the mixtures, indicating at several endothermal peaks in range of RT to 1100oC. SEM gave information about changes in microstructures, showing the clear decrease in particle size.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts",
title = "Structural characterization of mechanically activated MgO-TiO2 system",
pages = "101-101",
url = "https://hdl.handle.net/21.15107/rcub_dais_629"
}

Filipović, S., Obradović, N., Krstić, J., Kosanović, D., Šćepanović, M., Pavlović, V. B., Maričić, A.,& Ristić, M. M.. (2011). Structural characterization of mechanically activated MgO-TiO2 system. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 101-101.
https://hdl.handle.net/21.15107/rcub_dais_629

Filipović S, Obradović N, Krstić J, Kosanović D, Šćepanović M, Pavlović VB, Maričić A, Ristić MM. Structural characterization of mechanically activated MgO-TiO2 system. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts. 2011;:101-101.
https://hdl.handle.net/21.15107/rcub_dais_629 .

Filipović, Suzana, Obradović, Nina, Krstić, Jugoslav, Kosanović, Darko, Šćepanović, M., Pavlović, Vladimir B., Maričić, Aleksa, Ristić, Momčilo M., "Structural characterization of mechanically activated MgO-TiO2 system" in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts (2011):101-101,
https://hdl.handle.net/21.15107/rcub_dais_629 .