Mirković, Miljana M.

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4a3e8601-ba90-4160-8e09-80b71cf86299
  • Mirković, Miljana M. (2)
  • Mirković, Miljana (1)

Author's Bibliography

Multiferroic Heterostructure BaTiO3/ε-Fe2O3 Composite Obtained by in situ Reaction

Filipović, Suzana; Obradović, Nina; Anđelković, Ljubica; Olćan, Dragan; Petrović, Jovana; Mirković, Miljana; Pavlović, Vladimir B.; Jeremić, Dejan; Vlahović, Branislav; Đorđević, Antonije

(Belgrade : International Institute for the Science of Sintering, 2021)

TY  - JOUR
AU  - Filipović, Suzana
AU  - Obradović, Nina
AU  - Anđelković, Ljubica
AU  - Olćan, Dragan
AU  - Petrović, Jovana
AU  - Mirković, Miljana
AU  - Pavlović, Vladimir B.
AU  - Jeremić, Dejan
AU  - Vlahović, Branislav
AU  - Đorđević, Antonije
PY  - 2021
UR  - https://dais.sanu.ac.rs/123456789/11230
AB  - Solid-state reaction between BaTiO3 and Fe2O3 was used to produce a multiferroic heterostructure composite. Commercial BaTiO3 and Fe(NO3)3•9H2O were suspended in ethanol for 30 minutes in an ultrasound bath. The prepared mixture was thermally processed at 300 oC for 6 h. Sintering at 1300 oC for 1 h resulted in a mixture of different phases, BaTiO3, BaFe12O19 and Ba12Ti28Fe15O84, which were confirmed by x-ray powder diffraction. A dense microstructure with a small volume fraction of closed porosity was indicated by the scanning electron microscopy, while a homogeneous distribution of Fe ions over BaTiO3 phase was visible from energy dispersive spectroscopy mapping. Doping of BaTiO3 with Fe2O3 resulted in formation of magnetic hexaferrite phases, as confirmed by dielectric measurements that showed a broadened maximum of the permittivity measured as a function of temperature.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Multiferroic Heterostructure BaTiO3/ε-Fe2O3 Composite Obtained by in situ Reaction
SP  - 1
EP  - 8
VL  - 53
DO  - 10.2298/SOS2101001F
ER  - 
@article{
author = "Filipović, Suzana and Obradović, Nina and Anđelković, Ljubica and Olćan, Dragan and Petrović, Jovana and Mirković, Miljana and Pavlović, Vladimir B. and Jeremić, Dejan and Vlahović, Branislav and Đorđević, Antonije",
year = "2021",
url = "https://dais.sanu.ac.rs/123456789/11230",
abstract = "Solid-state reaction between BaTiO3 and Fe2O3 was used to produce a multiferroic heterostructure composite. Commercial BaTiO3 and Fe(NO3)3•9H2O were suspended in ethanol for 30 minutes in an ultrasound bath. The prepared mixture was thermally processed at 300 oC for 6 h. Sintering at 1300 oC for 1 h resulted in a mixture of different phases, BaTiO3, BaFe12O19 and Ba12Ti28Fe15O84, which were confirmed by x-ray powder diffraction. A dense microstructure with a small volume fraction of closed porosity was indicated by the scanning electron microscopy, while a homogeneous distribution of Fe ions over BaTiO3 phase was visible from energy dispersive spectroscopy mapping. Doping of BaTiO3 with Fe2O3 resulted in formation of magnetic hexaferrite phases, as confirmed by dielectric measurements that showed a broadened maximum of the permittivity measured as a function of temperature.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Multiferroic Heterostructure BaTiO3/ε-Fe2O3 Composite Obtained by in situ Reaction",
pages = "1-8",
volume = "53",
doi = "10.2298/SOS2101001F"
}
Filipović, S., Obradović, N., Anđelković, L., Olćan, D., Petrović, J., Mirković, M., Pavlović, V. B., Jeremić, D., Vlahović, B.,& Đorđević, A. (2021). Multiferroic Heterostructure BaTiO3/ε-Fe2O3 Composite Obtained by in situ Reaction.
Science of Sintering
Belgrade : International Institute for the Science of Sintering., 53, 1-8.
https://doi.org/10.2298/SOS2101001F
Filipović S, Obradović N, Anđelković L, Olćan D, Petrović J, Mirković M, Pavlović VB, Jeremić D, Vlahović B, Đorđević A. Multiferroic Heterostructure BaTiO3/ε-Fe2O3 Composite Obtained by in situ Reaction. Science of Sintering. 2021;53:1-8
Filipović Suzana, Obradović Nina, Anđelković Ljubica, Olćan Dragan, Petrović Jovana, Mirković Miljana, Pavlović Vladimir B., Jeremić Dejan, Vlahović Branislav, Đorđević Antonije, "Multiferroic Heterostructure BaTiO3/ε-Fe2O3 Composite Obtained by in situ Reaction" Science of Sintering, 53 (2021):1-8,
https://doi.org/10.2298/SOS2101001F .

The influence of thermodynamic parameters of the alkaline activator on the mechanical properties of geopolymers

Ivanović, Marija D.; Đukić, Dunja; Mladenović, Nataša; Kljajević, Ljiljana M.; Pavlović, Vladimir B.; Nenadović, Snežana S.; Mirković, Miljana M.

(Belgrade : Institute of Technical Sciences of SASA, 2019)

TY  - CONF
AU  - Ivanović, Marija D.
AU  - Đukić, Dunja
AU  - Mladenović, Nataša
AU  - Kljajević, Ljiljana M.
AU  - Pavlović, Vladimir B.
AU  - Nenadović, Snežana S.
AU  - Mirković, Miljana M.
PY  - 2019
UR  - http://dais.sanu.ac.rs/123456789/6965
AB  - In order to optimize process of geopolymerization, the investigation of thermodynamic parameters of alkali activators are important. The aim of this research was to investigate the influence of thermodynamic parameters (density, viscosity, refractive index and sound velocity) of alkaline activators on mechanical properties (compressive strength and hardness) of synthesized geopolymer samples. Geopolymers were synthetized by alkaline activation of metakaolin, having the density 2.524 g/cm3, using the activators at elevated temperature of 60 oC for two days. Based on the obtained results thermodynamic properties has been selected to predict the properties of materials. Four series of alkaline activators have been used. Activators remarked as AA1, AA2, AA3 and AA4 present the mixtures of Na2SiO3 and solutions of NaOH, of different molarities 2M, 4M, 6M and 8M respectively. The volume ratio of Na2SiO3 and aqueous solution of NaOH was the same for all samples. Densities, viscosities and refractive indices of alkaline activators were determined over the temperature range 15-60 oC of process of geopolymerizations. The values of density, viscosity and refractive index decrease with temperature increase over the investigated temperature range. Increasing molarity of alkali activator solutions, the sound velocity of activators is changed. For sample AA2 the values of sound velocity rises from room temperature to 45 °C and then begins to decrease while for the sample AA3 sound velocity grows until 30 °C and then starts to decrease with further increasing of temperature. Four series of geopolymer samples GP1 to GP4 were synthesiyed using the constant ratio of solid and liquid phase. FTIR, XRD, SEM-EDS methods were used for physicochemical further characterization of geopolymer samples.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia
T1  - The influence of thermodynamic parameters of the alkaline activator on the mechanical properties of geopolymers
SP  - 87
EP  - 87
ER  - 
@conference{
author = "Ivanović, Marija D. and Đukić, Dunja and Mladenović, Nataša and Kljajević, Ljiljana M. and Pavlović, Vladimir B. and Nenadović, Snežana S. and Mirković, Miljana M.",
year = "2019",
url = "http://dais.sanu.ac.rs/123456789/6965",
abstract = "In order to optimize process of geopolymerization, the investigation of thermodynamic parameters of alkali activators are important. The aim of this research was to investigate the influence of thermodynamic parameters (density, viscosity, refractive index and sound velocity) of alkaline activators on mechanical properties (compressive strength and hardness) of synthesized geopolymer samples. Geopolymers were synthetized by alkaline activation of metakaolin, having the density 2.524 g/cm3, using the activators at elevated temperature of 60 oC for two days. Based on the obtained results thermodynamic properties has been selected to predict the properties of materials. Four series of alkaline activators have been used. Activators remarked as AA1, AA2, AA3 and AA4 present the mixtures of Na2SiO3 and solutions of NaOH, of different molarities 2M, 4M, 6M and 8M respectively. The volume ratio of Na2SiO3 and aqueous solution of NaOH was the same for all samples. Densities, viscosities and refractive indices of alkaline activators were determined over the temperature range 15-60 oC of process of geopolymerizations. The values of density, viscosity and refractive index decrease with temperature increase over the investigated temperature range. Increasing molarity of alkali activator solutions, the sound velocity of activators is changed. For sample AA2 the values of sound velocity rises from room temperature to 45 °C and then begins to decrease while for the sample AA3 sound velocity grows until 30 °C and then starts to decrease with further increasing of temperature. Four series of geopolymer samples GP1 to GP4 were synthesiyed using the constant ratio of solid and liquid phase. FTIR, XRD, SEM-EDS methods were used for physicochemical further characterization of geopolymer samples.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia",
title = "The influence of thermodynamic parameters of the alkaline activator on the mechanical properties of geopolymers",
pages = "87-87"
}
Ivanović, M. D., Đukić, D., Mladenović, N., Kljajević, L. M., Pavlović, V. B., Nenadović, S. S.,& Mirković, M. M. (2019). The influence of thermodynamic parameters of the alkaline activator on the mechanical properties of geopolymers.
Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 87-87.
Ivanović MD, Đukić D, Mladenović N, Kljajević LM, Pavlović VB, Nenadović SS, Mirković MM. The influence of thermodynamic parameters of the alkaline activator on the mechanical properties of geopolymers. Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia. 2019;:87-87
Ivanović Marija D., Đukić Dunja, Mladenović Nataša, Kljajević Ljiljana M., Pavlović Vladimir B., Nenadović Snežana S., Mirković Miljana M., "The influence of thermodynamic parameters of the alkaline activator on the mechanical properties of geopolymers" Program and the Book of abstracts / Eighteenth Young Researchers' Conference Materials Sciences and Engineering, December 4-6, 2019, Belgrade, Serbia (2019):87-87

The potential of hybrid geopolymer composites

Vukčević, Mira; Bošković, Ivana; Nenadović, Snežana S.; Mirković, Miljana M.; Gulicovski, Jelena; Pavlović, Vladimir B.; Kljajević, Ljiljana M.

(Belgrade : Institute for Multidisciplinary Research, 2019)

TY  - CONF
AU  - Vukčević, Mira
AU  - Bošković, Ivana
AU  - Nenadović, Snežana S.
AU  - Mirković, Miljana M.
AU  - Gulicovski, Jelena
AU  - Pavlović, Vladimir B.
AU  - Kljajević, Ljiljana M.
PY  - 2019
UR  - http://dais.sanu.ac.rs/123456789/7004
AB  - Hybrid geopolymers represent a new class of composite materials formed by incorporating organic polymer into a geopolymer matrix. The properties of hybrid geopolymer depend on the addition of organic phase and the starting raw material composition (concentration of NaOH in alkaline activator, Si/Al mass ratio and solid/liquid mass ratio). In addition to these relevant parameters, this paper examines the synthesis conditions of these materials through the influence of the type, amount and manner of adding organic modifiers (commercial epoxy resins and 3- (methoxyl) propyl methacrylates) on forming the structure with significantly reduced pore distribution and decreased pore size, which exhibits good mechanical properties. The purpose of this research is to define the optimal conditions of the hybrid geopolymers' synthesis through the examination of relevant parameters. Expected improvement of mechanical properties was confirmed through values of compressive stength. Characterization of hybrid geopolymer composities was performed by XRD analysis, DRIFT spectroscopy and SEM analysis.
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  - The potential of hybrid geopolymer composites
SP  - 71
EP  - 71
ER  - 
@conference{
author = "Vukčević, Mira and Bošković, Ivana and Nenadović, Snežana S. and Mirković, Miljana M. and Gulicovski, Jelena and Pavlović, Vladimir B. and Kljajević, Ljiljana M.",
year = "2019",
url = "http://dais.sanu.ac.rs/123456789/7004",
abstract = "Hybrid geopolymers represent a new class of composite materials formed by incorporating organic polymer into a geopolymer matrix. The properties of hybrid geopolymer depend on the addition of organic phase and the starting raw material composition (concentration of NaOH in alkaline activator, Si/Al mass ratio and solid/liquid mass ratio). In addition to these relevant parameters, this paper examines the synthesis conditions of these materials through the influence of the type, amount and manner of adding organic modifiers (commercial epoxy resins and 3- (methoxyl) propyl methacrylates) on forming the structure with significantly reduced pore distribution and decreased pore size, which exhibits good mechanical properties. The purpose of this research is to define the optimal conditions of the hybrid geopolymers' synthesis through the examination of relevant parameters. Expected improvement of mechanical properties was confirmed through values of compressive stength. Characterization of hybrid geopolymer composities was performed by XRD analysis, DRIFT spectroscopy and SEM analysis.",
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 = "The potential of hybrid geopolymer composites",
pages = "71-71"
}
Vukčević, M., Bošković, I., Nenadović, S. S., Mirković, M. M., Gulicovski, J., Pavlović, V. B.,& Kljajević, L. M. (2019). The potential of hybrid geopolymer composites.
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., 71-71.
Vukčević M, Bošković I, Nenadović SS, Mirković MM, Gulicovski J, Pavlović VB, Kljajević LM. The potential of hybrid geopolymer composites. Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia. 2019;:71-71
Vukčević Mira, Bošković Ivana, Nenadović Snežana S., Mirković Miljana M., Gulicovski Jelena, Pavlović Vladimir B., Kljajević Ljiljana M., "The potential of hybrid geopolymer composites" Programme and the Book of Abstracts / 5th Conference of The Serbian Society for Ceramic Materials, 5CSCS-2019, June 11-13, 2019, Belgrade, Serbia (2019):71-71