Đorđević, Aleksandar

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4413f1b7-6111-4b7d-a97b-ceb5c8ddb22e
  • Đorđević, Aleksandar (10)
Projects

Author's Bibliography

Study of thermal properties and microstructure of the Ag–Ge alloys

Manasijević, Dragan; Balanović, Ljubiša; Marković, Ivana; Gorgievski, Milan; Stamenković, Uroš; Minić, Duško; Premović, Milena; Đorđević, Aleksandar; Ćosović, Vladan

(Springer, 2022)

TY  - JOUR
AU  - Manasijević, Dragan
AU  - Balanović, Ljubiša
AU  - Marković, Ivana
AU  - Gorgievski, Milan
AU  - Stamenković, Uroš
AU  - Minić, Duško
AU  - Premović, Milena
AU  - Đorđević, Aleksandar
AU  - Ćosović, Vladan
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4808
AB  - Microstructure, phase transitions and thermal properties including thermal diffusivity and thermal conductivity of four Ag–Ge alloys with 20, 40, 60 and 80 at % of Ge were experimentally investigated in this study. Observation and analysis of the alloy microstructures and morphologies of (Ge) phase in the hypereutectic alloys were carried out using optical microscopy and scanning electron microscopy with energy-dispersive X-ray spectrometry (SEM–EDS). Phase transitions of the alloys were studied using differential scanning calorimetry (DSC). Experimentally determined temperature of the eutectic reaction was 650.9 °C. The xenon flash method was used for thermal diffusivity measurements in the temperature range from 25 to 400 °C. Based on the measured values of thermal diffusivity, thermal conductivity of the solid Ag–Ge alloys was determined. It was found that both thermal diffusivity and thermal conductivity show a minimum at 20 at % Ge which is close to the eutectic composition. The obtained results were compared with the results of thermodynamic calculation and literature data, and a close agreement was observed.
PB  - Springer
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Study of thermal properties and microstructure of the Ag–Ge alloys
VL  - 147
SP  - 1955
EP  - 1964
DO  - 10.1007/s10973-021-10664-y
ER  - 
@article{
author = "Manasijević, Dragan and Balanović, Ljubiša and Marković, Ivana and Gorgievski, Milan and Stamenković, Uroš and Minić, Duško and Premović, Milena and Đorđević, Aleksandar and Ćosović, Vladan",
year = "2022",
abstract = "Microstructure, phase transitions and thermal properties including thermal diffusivity and thermal conductivity of four Ag–Ge alloys with 20, 40, 60 and 80 at % of Ge were experimentally investigated in this study. Observation and analysis of the alloy microstructures and morphologies of (Ge) phase in the hypereutectic alloys were carried out using optical microscopy and scanning electron microscopy with energy-dispersive X-ray spectrometry (SEM–EDS). Phase transitions of the alloys were studied using differential scanning calorimetry (DSC). Experimentally determined temperature of the eutectic reaction was 650.9 °C. The xenon flash method was used for thermal diffusivity measurements in the temperature range from 25 to 400 °C. Based on the measured values of thermal diffusivity, thermal conductivity of the solid Ag–Ge alloys was determined. It was found that both thermal diffusivity and thermal conductivity show a minimum at 20 at % Ge which is close to the eutectic composition. The obtained results were compared with the results of thermodynamic calculation and literature data, and a close agreement was observed.",
publisher = "Springer",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Study of thermal properties and microstructure of the Ag–Ge alloys",
volume = "147",
pages = "1955-1964",
doi = "10.1007/s10973-021-10664-y"
}
Manasijević, D., Balanović, L., Marković, I., Gorgievski, M., Stamenković, U., Minić, D., Premović, M., Đorđević, A.,& Ćosović, V.. (2022). Study of thermal properties and microstructure of the Ag–Ge alloys. in Journal of Thermal Analysis and Calorimetry
Springer., 147, 1955-1964.
https://doi.org/10.1007/s10973-021-10664-y
Manasijević D, Balanović L, Marković I, Gorgievski M, Stamenković U, Minić D, Premović M, Đorđević A, Ćosović V. Study of thermal properties and microstructure of the Ag–Ge alloys. in Journal of Thermal Analysis and Calorimetry. 2022;147:1955-1964.
doi:10.1007/s10973-021-10664-y .
Manasijević, Dragan, Balanović, Ljubiša, Marković, Ivana, Gorgievski, Milan, Stamenković, Uroš, Minić, Duško, Premović, Milena, Đorđević, Aleksandar, Ćosović, Vladan, "Study of thermal properties and microstructure of the Ag–Ge alloys" in Journal of Thermal Analysis and Calorimetry, 147 (2022):1955-1964,
https://doi.org/10.1007/s10973-021-10664-y . .
3
3

Experimental Investigation of Phase Equilibria in the Bi-Cu-Ge System

Milosavljević, Milan; Premović, Milena; Minić, Duško; Ćosović, Vladan; Đorđević, Aleksandar; Tomović, Milica

(Brazil : SCI FLO, 2021)

TY  - JOUR
AU  - Milosavljević, Milan
AU  - Premović, Milena
AU  - Minić, Duško
AU  - Ćosović, Vladan
AU  - Đorđević, Aleksandar
AU  - Tomović, Milica
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4765
AB  - Phase diagram of the Bi-Ce-Ge ternary system has been investigated experimentally and thermodynamically extrapolated by using Pandat software. Experimental results were obtained using differential thermal analysis (DTA), scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), and X-ray powder diffraction (XRD) methods. Examined ternary samples belong to two isothermal sections at 400 and 600 °C as well as three vertical sections Bi-CuGe, Cu-BiGe, and Ge-BiCu. No ternary compound has been detected in the equilibrated samples from the selected isothermal sections. Based on the presented experimental data and available literature data, description of the ternary system has been developed. A reasonable agreement between the experimental data and the calculated phase equilibria was obtained. As an example, ternary Cu80Bi10Ge10 alloy was selected for solidification simulations according to Scheil and Lever Rule assumptions as well as for simulation of the total fraction of each solid at different temperatures, latent heat, and total heat.
PB  - Brazil : SCI FLO
T2  - Materials Research
T1  - Experimental Investigation of Phase Equilibria in the Bi-Cu-Ge System
VL  - 24
IS  - 6
DO  - 10.1590/1980-5373-MR-2021-0201
ER  - 
@article{
author = "Milosavljević, Milan and Premović, Milena and Minić, Duško and Ćosović, Vladan and Đorđević, Aleksandar and Tomović, Milica",
year = "2021",
abstract = "Phase diagram of the Bi-Ce-Ge ternary system has been investigated experimentally and thermodynamically extrapolated by using Pandat software. Experimental results were obtained using differential thermal analysis (DTA), scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), and X-ray powder diffraction (XRD) methods. Examined ternary samples belong to two isothermal sections at 400 and 600 °C as well as three vertical sections Bi-CuGe, Cu-BiGe, and Ge-BiCu. No ternary compound has been detected in the equilibrated samples from the selected isothermal sections. Based on the presented experimental data and available literature data, description of the ternary system has been developed. A reasonable agreement between the experimental data and the calculated phase equilibria was obtained. As an example, ternary Cu80Bi10Ge10 alloy was selected for solidification simulations according to Scheil and Lever Rule assumptions as well as for simulation of the total fraction of each solid at different temperatures, latent heat, and total heat.",
publisher = "Brazil : SCI FLO",
journal = "Materials Research",
title = "Experimental Investigation of Phase Equilibria in the Bi-Cu-Ge System",
volume = "24",
number = "6",
doi = "10.1590/1980-5373-MR-2021-0201"
}
Milosavljević, M., Premović, M., Minić, D., Ćosović, V., Đorđević, A.,& Tomović, M.. (2021). Experimental Investigation of Phase Equilibria in the Bi-Cu-Ge System. in Materials Research
Brazil : SCI FLO., 24(6).
https://doi.org/10.1590/1980-5373-MR-2021-0201
Milosavljević M, Premović M, Minić D, Ćosović V, Đorđević A, Tomović M. Experimental Investigation of Phase Equilibria in the Bi-Cu-Ge System. in Materials Research. 2021;24(6).
doi:10.1590/1980-5373-MR-2021-0201 .
Milosavljević, Milan, Premović, Milena, Minić, Duško, Ćosović, Vladan, Đorđević, Aleksandar, Tomović, Milica, "Experimental Investigation of Phase Equilibria in the Bi-Cu-Ge System" in Materials Research, 24, no. 6 (2021),
https://doi.org/10.1590/1980-5373-MR-2021-0201 . .

Structural and thermal properties of Sn–Ag alloys

Manasijević, Dragan; Balanović, Ljubiša; Marković, Ljubiša; Gorgievski, Milan; Stamenković, Uroš; Đorđević, Aleksandar; Minić, Duško; Ćosović, Vladan

(Elsevier, 2021)

TY  - JOUR
AU  - Manasijević, Dragan
AU  - Balanović, Ljubiša
AU  - Marković, Ljubiša
AU  - Gorgievski, Milan
AU  - Stamenković, Uroš
AU  - Đorđević, Aleksandar
AU  - Minić, Duško
AU  - Ćosović, Vladan
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4817
AB  - Microstructure and thermal properties of slowly cooled Sn–10% Ag and Sn–20% Ag alloys were experimentally investigated in this study. It was found that microstructure of the studied alloys is composed of large, plate-like grains of Ag3Sn intermetallic phase in the Sn-rich eutectic matrix. Phase transition temperatures and corresponding heat effects were experimentally determined and compared with the results of thermodynamic and phase equilibria calculations using the CALPHAD (CALculation of PHAse Diagrams) method and optimized thermodynamic parameters from literature. The xenon flash method was employed for the measurements of thermal diffusivity and determination of thermal conductivity in the temperature range from 25 to 150 °C. The results show that the thermal diffusivity and thermal conductivity gradually decrease with increasing temperature. The determined values of thermal conductivities of the investigated alloys are very close to each other and only slightly higher than that of pure tin. The contributions of electrons and phonons to the thermal conductivity of the studied alloys at room temperature were determined using the Wiedemann-Franz law and the obtained values of the thermal and electrical conductivities. The percentage contributions of the phonon component to the thermal conductivity for Sn–10% Ag and Sn–20% Ag alloys at 25 °C were found to be 20.5% and 28.9%, respectively.
PB  - Elsevier
T2  - Solid State Sciences
T1  - Structural and thermal properties of Sn–Ag alloys
VL  - 119
SP  - 106685
DO  - 10.1016/j.solidstatesciences.2021.106685
ER  - 
@article{
author = "Manasijević, Dragan and Balanović, Ljubiša and Marković, Ljubiša and Gorgievski, Milan and Stamenković, Uroš and Đorđević, Aleksandar and Minić, Duško and Ćosović, Vladan",
year = "2021",
abstract = "Microstructure and thermal properties of slowly cooled Sn–10% Ag and Sn–20% Ag alloys were experimentally investigated in this study. It was found that microstructure of the studied alloys is composed of large, plate-like grains of Ag3Sn intermetallic phase in the Sn-rich eutectic matrix. Phase transition temperatures and corresponding heat effects were experimentally determined and compared with the results of thermodynamic and phase equilibria calculations using the CALPHAD (CALculation of PHAse Diagrams) method and optimized thermodynamic parameters from literature. The xenon flash method was employed for the measurements of thermal diffusivity and determination of thermal conductivity in the temperature range from 25 to 150 °C. The results show that the thermal diffusivity and thermal conductivity gradually decrease with increasing temperature. The determined values of thermal conductivities of the investigated alloys are very close to each other and only slightly higher than that of pure tin. The contributions of electrons and phonons to the thermal conductivity of the studied alloys at room temperature were determined using the Wiedemann-Franz law and the obtained values of the thermal and electrical conductivities. The percentage contributions of the phonon component to the thermal conductivity for Sn–10% Ag and Sn–20% Ag alloys at 25 °C were found to be 20.5% and 28.9%, respectively.",
publisher = "Elsevier",
journal = "Solid State Sciences",
title = "Structural and thermal properties of Sn–Ag alloys",
volume = "119",
pages = "106685",
doi = "10.1016/j.solidstatesciences.2021.106685"
}
Manasijević, D., Balanović, L., Marković, L., Gorgievski, M., Stamenković, U., Đorđević, A., Minić, D.,& Ćosović, V.. (2021). Structural and thermal properties of Sn–Ag alloys. in Solid State Sciences
Elsevier., 119, 106685.
https://doi.org/10.1016/j.solidstatesciences.2021.106685
Manasijević D, Balanović L, Marković L, Gorgievski M, Stamenković U, Đorđević A, Minić D, Ćosović V. Structural and thermal properties of Sn–Ag alloys. in Solid State Sciences. 2021;119:106685.
doi:10.1016/j.solidstatesciences.2021.106685 .
Manasijević, Dragan, Balanović, Ljubiša, Marković, Ljubiša, Gorgievski, Milan, Stamenković, Uroš, Đorđević, Aleksandar, Minić, Duško, Ćosović, Vladan, "Structural and thermal properties of Sn–Ag alloys" in Solid State Sciences, 119 (2021):106685,
https://doi.org/10.1016/j.solidstatesciences.2021.106685 . .
8
9

Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems

Đorđević, Aleksandar; Premović, Milena; Minić, Duško; Ćosović, Vladan; Manasijević, Dragan

(Elsevier, 2020)

TY  - JOUR
AU  - Đorđević, Aleksandar
AU  - Premović, Milena
AU  - Minić, Duško
AU  - Ćosović, Vladan
AU  - Manasijević, Dragan
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3344
AB  - Due to the wide application of systems based on germanium ternary Bi-Ga-Ge and Bi-Ge-Zn systems were experimentally tested in this study. Used experimental techniques were scanning electron microscope with energy dispersive spectroscopy (SEM-EDS), x-ray diffraction (XRD) and differential thermal analysis (DTA). Three groups of samples were prepared and tested. Alloys were from two isothermal sections at 100 and 300 °C and three vertical sections. Obtained results of experimental tests were compared with predicted phase diagrams. Comparison of EDS and DTA results with calculated phase diagrams of the ternary Bi-Ga-Ge system results in good agreement. While for Bi-Ge-Zn was necessary to introduce new ternary parameters. Introduced ternary parameters were based on experimental results from this study. The thermodynamic descriptions of the ternary Bi-Ga-Ge and Bi-Ge-Zn systems have been developed by using CALPHAD method. Reasonable agreement between experimental data and the calculated phase diagrams has been reached for both ternary Bi-Ga-Ge and Bi-Ge-Zn systems. The liquid projection and invariant equilibria have been calculated by using obtained thermodynamic parameters.
PB  - Elsevier
T2  - Journal of Chemical Thermodynamics
T1  - Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems
VL  - 142
SP  - 106000
DO  - 10.1016/j.jct.2019.106000
ER  - 
@article{
author = "Đorđević, Aleksandar and Premović, Milena and Minić, Duško and Ćosović, Vladan and Manasijević, Dragan",
year = "2020",
abstract = "Due to the wide application of systems based on germanium ternary Bi-Ga-Ge and Bi-Ge-Zn systems were experimentally tested in this study. Used experimental techniques were scanning electron microscope with energy dispersive spectroscopy (SEM-EDS), x-ray diffraction (XRD) and differential thermal analysis (DTA). Three groups of samples were prepared and tested. Alloys were from two isothermal sections at 100 and 300 °C and three vertical sections. Obtained results of experimental tests were compared with predicted phase diagrams. Comparison of EDS and DTA results with calculated phase diagrams of the ternary Bi-Ga-Ge system results in good agreement. While for Bi-Ge-Zn was necessary to introduce new ternary parameters. Introduced ternary parameters were based on experimental results from this study. The thermodynamic descriptions of the ternary Bi-Ga-Ge and Bi-Ge-Zn systems have been developed by using CALPHAD method. Reasonable agreement between experimental data and the calculated phase diagrams has been reached for both ternary Bi-Ga-Ge and Bi-Ge-Zn systems. The liquid projection and invariant equilibria have been calculated by using obtained thermodynamic parameters.",
publisher = "Elsevier",
journal = "Journal of Chemical Thermodynamics",
title = "Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems",
volume = "142",
pages = "106000",
doi = "10.1016/j.jct.2019.106000"
}
Đorđević, A., Premović, M., Minić, D., Ćosović, V.,& Manasijević, D.. (2020). Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems. in Journal of Chemical Thermodynamics
Elsevier., 142, 106000.
https://doi.org/10.1016/j.jct.2019.106000
Đorđević A, Premović M, Minić D, Ćosović V, Manasijević D. Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems. in Journal of Chemical Thermodynamics. 2020;142:106000.
doi:10.1016/j.jct.2019.106000 .
Đorđević, Aleksandar, Premović, Milena, Minić, Duško, Ćosović, Vladan, Manasijević, Dragan, "Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems" in Journal of Chemical Thermodynamics, 142 (2020):106000,
https://doi.org/10.1016/j.jct.2019.106000 . .
2
2
2

Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems

Đorđević, Aleksandar; Premović, Milena; Minić, Duško; Ćosović, Vladan; Manasijević, Dragan

(Elsevier, 2020)

TY  - JOUR
AU  - Đorđević, Aleksandar
AU  - Premović, Milena
AU  - Minić, Duško
AU  - Ćosović, Vladan
AU  - Manasijević, Dragan
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3361
AB  - Due to the wide application of systems based on germanium ternary Bi-Ga-Ge and Bi-Ge-Zn systems were experimentally tested in this study. Used experimental techniques were scanning electron microscope with energy dispersive spectroscopy (SEM-EDS), x-ray diffraction (XRD) and differential thermal analysis (DTA). Three groups of samples were prepared and tested. Alloys were from two isothermal sections at 100 and 300 °C and three vertical sections. Obtained results of experimental tests were compared with predicted phase diagrams. Comparison of EDS and DTA results with calculated phase diagrams of the ternary Bi-Ga-Ge system results in good agreement. While for Bi-Ge-Zn was necessary to introduce new ternary parameters. Introduced ternary parameters were based on experimental results from this study. The thermodynamic descriptions of the ternary Bi-Ga-Ge and Bi-Ge-Zn systems have been developed by using CALPHAD method. Reasonable agreement between experimental data and the calculated phase diagrams has been reached for both ternary Bi-Ga-Ge and Bi-Ge-Zn systems. The liquid projection and invariant equilibria have been calculated by using obtained thermodynamic parameters.
PB  - Elsevier
T2  - Journal of Chemical Thermodynamics
T1  - Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems
VL  - 142
SP  - 106000
DO  - 10.1016/j.jct.2019.106000
ER  - 
@article{
author = "Đorđević, Aleksandar and Premović, Milena and Minić, Duško and Ćosović, Vladan and Manasijević, Dragan",
year = "2020",
abstract = "Due to the wide application of systems based on germanium ternary Bi-Ga-Ge and Bi-Ge-Zn systems were experimentally tested in this study. Used experimental techniques were scanning electron microscope with energy dispersive spectroscopy (SEM-EDS), x-ray diffraction (XRD) and differential thermal analysis (DTA). Three groups of samples were prepared and tested. Alloys were from two isothermal sections at 100 and 300 °C and three vertical sections. Obtained results of experimental tests were compared with predicted phase diagrams. Comparison of EDS and DTA results with calculated phase diagrams of the ternary Bi-Ga-Ge system results in good agreement. While for Bi-Ge-Zn was necessary to introduce new ternary parameters. Introduced ternary parameters were based on experimental results from this study. The thermodynamic descriptions of the ternary Bi-Ga-Ge and Bi-Ge-Zn systems have been developed by using CALPHAD method. Reasonable agreement between experimental data and the calculated phase diagrams has been reached for both ternary Bi-Ga-Ge and Bi-Ge-Zn systems. The liquid projection and invariant equilibria have been calculated by using obtained thermodynamic parameters.",
publisher = "Elsevier",
journal = "Journal of Chemical Thermodynamics",
title = "Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems",
volume = "142",
pages = "106000",
doi = "10.1016/j.jct.2019.106000"
}
Đorđević, A., Premović, M., Minić, D., Ćosović, V.,& Manasijević, D.. (2020). Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems. in Journal of Chemical Thermodynamics
Elsevier., 142, 106000.
https://doi.org/10.1016/j.jct.2019.106000
Đorđević A, Premović M, Minić D, Ćosović V, Manasijević D. Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems. in Journal of Chemical Thermodynamics. 2020;142:106000.
doi:10.1016/j.jct.2019.106000 .
Đorđević, Aleksandar, Premović, Milena, Minić, Duško, Ćosović, Vladan, Manasijević, Dragan, "Experimental examination and thermodynamic description of the ternary Bi-Ge-Ga,Zn systems" in Journal of Chemical Thermodynamics, 142 (2020):106000,
https://doi.org/10.1016/j.jct.2019.106000 . .
2
2
2

Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation

Banić, Nemanja; Krstić, Jugoslav; Stojadinović, Stevan; Brnović, Anđela; Đorđević, Aleksandar; Abramović, Biljana F.

(John Wiley and Sons Inc, 2020)

TY  - JOUR
AU  - Banić, Nemanja
AU  - Krstić, Jugoslav
AU  - Stojadinović, Stevan
AU  - Brnović, Anđela
AU  - Đorđević, Aleksandar
AU  - Abramović, Biljana F.
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3640
AB  - Five NiO/TiO2 materials with a different mass ratiо оf NiO tо TiO2 (3.3, 6.7, 16.3, 23.7, and 36.8%) were synthesized by wet impregnation process and characterized by DR UV-vis, scanning electrоn micrоscоpe, transmissiоn electrоn micrоscоpy, X-ray diffractiоn methоd, N2 physisorption, and temperature-programmed reduction. The characterizatiоn confirmed the existence of nano-sized cubic NiO on the commercial TiО2. The оbserved interactiоn between TiO2 and NiО phases confirmed that the оbtained material dоes nоt constitute a physical mixture оf twо species. The photocatalytic hydrоgen generatiоn efficiency [mоnitored by gas chromatography–thermal conductivity detector (GC-TCD)] of these materials from methanol-water mixtures under simulated solar radiation and artificial UV radiation was investigated. For some synthesized NiO/TiO2 materials, higher photocatalytic efficiency was found compared with the commercial TiO2 Degussa P25 catalyst. Also, the obtained results showed that 0.125 g L−1 of 6.7%NiO/TiO2 and 5% (v/v) of methanol were the optimal operating parameters. Furthermоre, fоr the mоst efficient phоtоcatalytic system under the influence оf simulated solar radiation, a 1.8 times higher hydrоgen prоduction rate was achieved cоmpared tо that under the influence оf artificial UV radiatiоn.
PB  - John Wiley and Sons Inc
T2  - International Journal of Energy Research
T1  - Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation
VL  - 44
IS  - 11
SP  - 8951
EP  - 8963
DO  - 10.1002/er.5604
ER  - 
@article{
author = "Banić, Nemanja and Krstić, Jugoslav and Stojadinović, Stevan and Brnović, Anđela and Đorđević, Aleksandar and Abramović, Biljana F.",
year = "2020",
abstract = "Five NiO/TiO2 materials with a different mass ratiо оf NiO tо TiO2 (3.3, 6.7, 16.3, 23.7, and 36.8%) were synthesized by wet impregnation process and characterized by DR UV-vis, scanning electrоn micrоscоpe, transmissiоn electrоn micrоscоpy, X-ray diffractiоn methоd, N2 physisorption, and temperature-programmed reduction. The characterizatiоn confirmed the existence of nano-sized cubic NiO on the commercial TiО2. The оbserved interactiоn between TiO2 and NiО phases confirmed that the оbtained material dоes nоt constitute a physical mixture оf twо species. The photocatalytic hydrоgen generatiоn efficiency [mоnitored by gas chromatography–thermal conductivity detector (GC-TCD)] of these materials from methanol-water mixtures under simulated solar radiation and artificial UV radiation was investigated. For some synthesized NiO/TiO2 materials, higher photocatalytic efficiency was found compared with the commercial TiO2 Degussa P25 catalyst. Also, the obtained results showed that 0.125 g L−1 of 6.7%NiO/TiO2 and 5% (v/v) of methanol were the optimal operating parameters. Furthermоre, fоr the mоst efficient phоtоcatalytic system under the influence оf simulated solar radiation, a 1.8 times higher hydrоgen prоduction rate was achieved cоmpared tо that under the influence оf artificial UV radiatiоn.",
publisher = "John Wiley and Sons Inc",
journal = "International Journal of Energy Research",
title = "Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation",
volume = "44",
number = "11",
pages = "8951-8963",
doi = "10.1002/er.5604"
}
Banić, N., Krstić, J., Stojadinović, S., Brnović, A., Đorđević, A.,& Abramović, B. F.. (2020). Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation. in International Journal of Energy Research
John Wiley and Sons Inc., 44(11), 8951-8963.
https://doi.org/10.1002/er.5604
Banić N, Krstić J, Stojadinović S, Brnović A, Đorđević A, Abramović BF. Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation. in International Journal of Energy Research. 2020;44(11):8951-8963.
doi:10.1002/er.5604 .
Banić, Nemanja, Krstić, Jugoslav, Stojadinović, Stevan, Brnović, Anđela, Đorđević, Aleksandar, Abramović, Biljana F., "Commercial TiO2 loaded with NiO for improving photocatalytic hydrоgen prоduction in the presence оf simulated solar radiation" in International Journal of Energy Research, 44, no. 11 (2020):8951-8963,
https://doi.org/10.1002/er.5604 . .
3
3
2

Experimental Evaluation of 300 degrees C section of Cu-In-Ni Phase Diagram, Hardness and Electrical Conductivity of Selected Alloy

Đorđević, Aleksandar; Premović, Milena; Minić, Duško; Ćosović, Vladan; Živković, Milutin; Manasijević, Dragan; Kolarević, Milan

(Universidade Federal de Sao Carlos, 2018)

TY  - JOUR
AU  - Đorđević, Aleksandar
AU  - Premović, Milena
AU  - Minić, Duško
AU  - Ćosović, Vladan
AU  - Živković, Milutin
AU  - Manasijević, Dragan
AU  - Kolarević, Milan
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2305
AB  - The paper reports comparative experimental and thermodynamic calculation of a Cu-In-Ni ternary system. An isothermal section of the Cu-In-Ni system at 300 degrees C was extrapolated using optimized thermodynamic parameters for the constitutive binary systems from literature. Microstructural and phase composition analysis were carried out using scanning electron microscopy coupled with energy dispersive spectrometry (SEM-EDS) and X-ray powder diffraction (XRD) technique. Brinell hardness and electrical conductivity of a selected number of alloy samples with compositions along three vertical sections (Cu-In0.5Ni0.5, In-Cu0.8Ni0.2, and x(In) = 0.4) of the studied Cu-In-Ni system were experimentally determined. Based on the obtained experimental results and by using appropriate mathematical models values of hardness and electrical conductivity for the whole ternary system were predicted. A close agreement between calculations and experimental results was obtained both in case of thermodynamic, electrical conductivity and hardness predictions.
PB  - Universidade Federal de Sao Carlos
T2  - Materials Research-Ibero-American Journal of Materials
T1  - Experimental Evaluation of 300 degrees C section of Cu-In-Ni Phase Diagram, Hardness and Electrical Conductivity of Selected Alloy
VL  - 21
IS  - 3
SP  - e20170699
DO  - 10.1590/1980-5373-MR-2017-0699
ER  - 
@article{
author = "Đorđević, Aleksandar and Premović, Milena and Minić, Duško and Ćosović, Vladan and Živković, Milutin and Manasijević, Dragan and Kolarević, Milan",
year = "2018",
abstract = "The paper reports comparative experimental and thermodynamic calculation of a Cu-In-Ni ternary system. An isothermal section of the Cu-In-Ni system at 300 degrees C was extrapolated using optimized thermodynamic parameters for the constitutive binary systems from literature. Microstructural and phase composition analysis were carried out using scanning electron microscopy coupled with energy dispersive spectrometry (SEM-EDS) and X-ray powder diffraction (XRD) technique. Brinell hardness and electrical conductivity of a selected number of alloy samples with compositions along three vertical sections (Cu-In0.5Ni0.5, In-Cu0.8Ni0.2, and x(In) = 0.4) of the studied Cu-In-Ni system were experimentally determined. Based on the obtained experimental results and by using appropriate mathematical models values of hardness and electrical conductivity for the whole ternary system were predicted. A close agreement between calculations and experimental results was obtained both in case of thermodynamic, electrical conductivity and hardness predictions.",
publisher = "Universidade Federal de Sao Carlos",
journal = "Materials Research-Ibero-American Journal of Materials",
title = "Experimental Evaluation of 300 degrees C section of Cu-In-Ni Phase Diagram, Hardness and Electrical Conductivity of Selected Alloy",
volume = "21",
number = "3",
pages = "e20170699",
doi = "10.1590/1980-5373-MR-2017-0699"
}
Đorđević, A., Premović, M., Minić, D., Ćosović, V., Živković, M., Manasijević, D.,& Kolarević, M.. (2018). Experimental Evaluation of 300 degrees C section of Cu-In-Ni Phase Diagram, Hardness and Electrical Conductivity of Selected Alloy. in Materials Research-Ibero-American Journal of Materials
Universidade Federal de Sao Carlos., 21(3), e20170699.
https://doi.org/10.1590/1980-5373-MR-2017-0699
Đorđević A, Premović M, Minić D, Ćosović V, Živković M, Manasijević D, Kolarević M. Experimental Evaluation of 300 degrees C section of Cu-In-Ni Phase Diagram, Hardness and Electrical Conductivity of Selected Alloy. in Materials Research-Ibero-American Journal of Materials. 2018;21(3):e20170699.
doi:10.1590/1980-5373-MR-2017-0699 .
Đorđević, Aleksandar, Premović, Milena, Minić, Duško, Ćosović, Vladan, Živković, Milutin, Manasijević, Dragan, Kolarević, Milan, "Experimental Evaluation of 300 degrees C section of Cu-In-Ni Phase Diagram, Hardness and Electrical Conductivity of Selected Alloy" in Materials Research-Ibero-American Journal of Materials, 21, no. 3 (2018):e20170699,
https://doi.org/10.1590/1980-5373-MR-2017-0699 . .
4
3
4

The influence of chemical composition on microstructure, hardness and electrical conductivity of Ag-Bi-In alloys at 100 degrees C

Ćosović, Vladan; Minić, Duško; Premović, Milena; Manasijević, Dragan; Đorđević, Aleksandar; Milisavljević, Dušan; Marković, Aleksandar

(Serbia : Association of Metallurgical Engineers of Serbia AMES, 2017)

TY  - JOUR
AU  - Ćosović, Vladan
AU  - Minić, Duško
AU  - Premović, Milena
AU  - Manasijević, Dragan
AU  - Đorđević, Aleksandar
AU  - Milisavljević, Dušan
AU  - Marković, Aleksandar
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3860
AB  - Considering possible applications and scarceness of literature data, Ag-Bi-In system was investigated in terms of microstructure, mechanical and electrical properties of ternary alloys from an isothermal section at 100 °C. Based on the experimentally obtained results hardness and electrical conductivity of all ternary alloys from the ternary Ag-Bi-In system at 100 °C were predicted. In addition, the selected isothermal section was further thermodynamically assessed and experimentally studied using scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), X-ray powder diffraction (XRD) analysis and light optical microscopy (LOM). Phase transition temperatures of alloys with overall compositions along vertical sections x(Ag)=0.5 as well as liquidus temperatures were experimentally determined by DTA. The experimentally obtained results were compared with literature data and with the results of thermodynamic calculation of phase equilibria based on CALPHAD method and corrected data for Ag-In binary system. Calculated liquidus projection, invariant equilibria and phase diagram of the Ag-Bi-In ternary system are presented as well.
PB  - Serbia : Association of Metallurgical Engineers of Serbia AMES
T2  - Metallurgical and Materials Engineering
T1  - The influence of chemical composition on microstructure, hardness and electrical conductivity of Ag-Bi-In alloys at  100 degrees C
VL  - 23
IS  - 1
SP  - 65
EP  - 82
DO  - 10.30544/265
ER  - 
@article{
author = "Ćosović, Vladan and Minić, Duško and Premović, Milena and Manasijević, Dragan and Đorđević, Aleksandar and Milisavljević, Dušan and Marković, Aleksandar",
year = "2017",
abstract = "Considering possible applications and scarceness of literature data, Ag-Bi-In system was investigated in terms of microstructure, mechanical and electrical properties of ternary alloys from an isothermal section at 100 °C. Based on the experimentally obtained results hardness and electrical conductivity of all ternary alloys from the ternary Ag-Bi-In system at 100 °C were predicted. In addition, the selected isothermal section was further thermodynamically assessed and experimentally studied using scanning electron microscopy (SEM) with energy dispersive spectrometry (EDS), X-ray powder diffraction (XRD) analysis and light optical microscopy (LOM). Phase transition temperatures of alloys with overall compositions along vertical sections x(Ag)=0.5 as well as liquidus temperatures were experimentally determined by DTA. The experimentally obtained results were compared with literature data and with the results of thermodynamic calculation of phase equilibria based on CALPHAD method and corrected data for Ag-In binary system. Calculated liquidus projection, invariant equilibria and phase diagram of the Ag-Bi-In ternary system are presented as well.",
publisher = "Serbia : Association of Metallurgical Engineers of Serbia AMES",
journal = "Metallurgical and Materials Engineering",
title = "The influence of chemical composition on microstructure, hardness and electrical conductivity of Ag-Bi-In alloys at  100 degrees C",
volume = "23",
number = "1",
pages = "65-82",
doi = "10.30544/265"
}
Ćosović, V., Minić, D., Premović, M., Manasijević, D., Đorđević, A., Milisavljević, D.,& Marković, A.. (2017). The influence of chemical composition on microstructure, hardness and electrical conductivity of Ag-Bi-In alloys at  100 degrees C. in Metallurgical and Materials Engineering
Serbia : Association of Metallurgical Engineers of Serbia AMES., 23(1), 65-82.
https://doi.org/10.30544/265
Ćosović V, Minić D, Premović M, Manasijević D, Đorđević A, Milisavljević D, Marković A. The influence of chemical composition on microstructure, hardness and electrical conductivity of Ag-Bi-In alloys at  100 degrees C. in Metallurgical and Materials Engineering. 2017;23(1):65-82.
doi:10.30544/265 .
Ćosović, Vladan, Minić, Duško, Premović, Milena, Manasijević, Dragan, Đorđević, Aleksandar, Milisavljević, Dušan, Marković, Aleksandar, "The influence of chemical composition on microstructure, hardness and electrical conductivity of Ag-Bi-In alloys at  100 degrees C" in Metallurgical and Materials Engineering, 23, no. 1 (2017):65-82,
https://doi.org/10.30544/265 . .
2
1

Effect of chemical composition on microstructure, hardness and electrical conductivity profiles of the Bi-Cu-Ga alloys at 100 °C

Gurešić, Dejan; Talijan, Nadežda M.; Ćosović, Vladan; Milisavljević, Dušan; Đorđević, Aleksandar; Tomović, Milica

(Serbia : Association of Metallurgical Engineers of Serbia, 2016)

TY  - JOUR
AU  - Gurešić, Dejan
AU  - Talijan, Nadežda M.
AU  - Ćosović, Vladan
AU  - Milisavljević, Dušan
AU  - Đorđević, Aleksandar
AU  - Tomović, Milica
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3928
AB  - Theoretical calculation and experimental investigation of the isothermal section of a ternary Bi-Cu-Ga system at 100 oC are presented in this paper. Thermodynamic binary-based calculation of the isothermal section was performed using Pandat software. Experimental investigation included microstructural analysis carried out using light optical microscopy (LOM) and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS), phase composition analysis using X-ray diffraction (XRD), Brinell and Vickers hardness testing and electrical conductivity measurements. In total, thirty alloy samples with compositions along three vertical sections Bi-CuGa, Cu-BiGa and Ga-BiCu were studied. The obtained experimental results support the calculated phase regions of the isothermal section at 100 oC. Hardness of individual phases as well as hardness and electrical conductivity of the studied alloys were measured. Based on the experimentally obtained results iso-lines of Brinell hardness and electrical conductivity along the whole compositional range were calculated by using appropriate mathematical models.
PB  - Serbia : Association of Metallurgical Engineers of Serbia
T2  - Metallurgical & Materials Engineering
T1  - Effect of chemical composition on microstructure, hardness and electrical conductivity profiles of the Bi-Cu-Ga alloys at 100 °C
VL  - 22
IS  - 3
SP  - 179
EP  - 192
DO  - 10.30544/211
ER  - 
@article{
author = "Gurešić, Dejan and Talijan, Nadežda M. and Ćosović, Vladan and Milisavljević, Dušan and Đorđević, Aleksandar and Tomović, Milica",
year = "2016",
abstract = "Theoretical calculation and experimental investigation of the isothermal section of a ternary Bi-Cu-Ga system at 100 oC are presented in this paper. Thermodynamic binary-based calculation of the isothermal section was performed using Pandat software. Experimental investigation included microstructural analysis carried out using light optical microscopy (LOM) and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS), phase composition analysis using X-ray diffraction (XRD), Brinell and Vickers hardness testing and electrical conductivity measurements. In total, thirty alloy samples with compositions along three vertical sections Bi-CuGa, Cu-BiGa and Ga-BiCu were studied. The obtained experimental results support the calculated phase regions of the isothermal section at 100 oC. Hardness of individual phases as well as hardness and electrical conductivity of the studied alloys were measured. Based on the experimentally obtained results iso-lines of Brinell hardness and electrical conductivity along the whole compositional range were calculated by using appropriate mathematical models.",
publisher = "Serbia : Association of Metallurgical Engineers of Serbia",
journal = "Metallurgical & Materials Engineering",
title = "Effect of chemical composition on microstructure, hardness and electrical conductivity profiles of the Bi-Cu-Ga alloys at 100 °C",
volume = "22",
number = "3",
pages = "179-192",
doi = "10.30544/211"
}
Gurešić, D., Talijan, N. M., Ćosović, V., Milisavljević, D., Đorđević, A.,& Tomović, M.. (2016). Effect of chemical composition on microstructure, hardness and electrical conductivity profiles of the Bi-Cu-Ga alloys at 100 °C. in Metallurgical & Materials Engineering
Serbia : Association of Metallurgical Engineers of Serbia., 22(3), 179-192.
https://doi.org/10.30544/211
Gurešić D, Talijan NM, Ćosović V, Milisavljević D, Đorđević A, Tomović M. Effect of chemical composition on microstructure, hardness and electrical conductivity profiles of the Bi-Cu-Ga alloys at 100 °C. in Metallurgical & Materials Engineering. 2016;22(3):179-192.
doi:10.30544/211 .
Gurešić, Dejan, Talijan, Nadežda M., Ćosović, Vladan, Milisavljević, Dušan, Đorđević, Aleksandar, Tomović, Milica, "Effect of chemical composition on microstructure, hardness and electrical conductivity profiles of the Bi-Cu-Ga alloys at 100 °C" in Metallurgical & Materials Engineering, 22, no. 3 (2016):179-192,
https://doi.org/10.30544/211 . .
1

Effects of chemical composition on the microstructure and properties of the CU-Ge-Sb alloys

Gurešić, Dejan; Đorđević, Aleksandar; Marković, Aleksandar; Tomović, Milica; Talijan, Nadežda M.; Manasijević, Ivana

(Sarajevo : University of East Sarajevo, Faculty of Technology, 2016)

TY  - JOUR
AU  - Gurešić, Dejan
AU  - Đorđević, Aleksandar
AU  - Marković, Aleksandar
AU  - Tomović, Milica
AU  - Talijan, Nadežda M.
AU  - Manasijević, Ivana
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4749
AB  - In the current study a ternary Cu-Ge-Sb system has been experimentally assessed. Chemical and phase compositions of the alloy samples from three vertical sections Cu-GeSb, Ge-CuSb and SbCuGe were studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) and confirmed by X-ray diffraction analysis (XRD). Hardness of the alloys was measured by Brinell method while hardness of phases was measured using micro Vickers method. Electrical conductivity of the studied alloys was measured using eddy current instrument. Based on experimentally determined values iso-lines of hardness and electrical conductivity for the whole ternary system were calculated using assumed mathematical models.
PB  - Sarajevo : University of East Sarajevo, Faculty of Technology
T2  - Journal of Engineering & Processing Management
T1  - Effects of chemical composition on the microstructure and properties of the CU-Ge-Sb alloys
VL  - 8
IS  - 1
SP  - 45
EP  - 64
DO  - 10.7251/JEPMEN1608045G
ER  - 
@article{
author = "Gurešić, Dejan and Đorđević, Aleksandar and Marković, Aleksandar and Tomović, Milica and Talijan, Nadežda M. and Manasijević, Ivana",
year = "2016",
abstract = "In the current study a ternary Cu-Ge-Sb system has been experimentally assessed. Chemical and phase compositions of the alloy samples from three vertical sections Cu-GeSb, Ge-CuSb and SbCuGe were studied using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) and confirmed by X-ray diffraction analysis (XRD). Hardness of the alloys was measured by Brinell method while hardness of phases was measured using micro Vickers method. Electrical conductivity of the studied alloys was measured using eddy current instrument. Based on experimentally determined values iso-lines of hardness and electrical conductivity for the whole ternary system were calculated using assumed mathematical models.",
publisher = "Sarajevo : University of East Sarajevo, Faculty of Technology",
journal = "Journal of Engineering & Processing Management",
title = "Effects of chemical composition on the microstructure and properties of the CU-Ge-Sb alloys",
volume = "8",
number = "1",
pages = "45-64",
doi = "10.7251/JEPMEN1608045G"
}
Gurešić, D., Đorđević, A., Marković, A., Tomović, M., Talijan, N. M.,& Manasijević, I.. (2016). Effects of chemical composition on the microstructure and properties of the CU-Ge-Sb alloys. in Journal of Engineering & Processing Management
Sarajevo : University of East Sarajevo, Faculty of Technology., 8(1), 45-64.
https://doi.org/10.7251/JEPMEN1608045G
Gurešić D, Đorđević A, Marković A, Tomović M, Talijan NM, Manasijević I. Effects of chemical composition on the microstructure and properties of the CU-Ge-Sb alloys. in Journal of Engineering & Processing Management. 2016;8(1):45-64.
doi:10.7251/JEPMEN1608045G .
Gurešić, Dejan, Đorđević, Aleksandar, Marković, Aleksandar, Tomović, Milica, Talijan, Nadežda M., Manasijević, Ivana, "Effects of chemical composition on the microstructure and properties of the CU-Ge-Sb alloys" in Journal of Engineering & Processing Management, 8, no. 1 (2016):45-64,
https://doi.org/10.7251/JEPMEN1608045G . .