TY  - JOUR
AU  - Janićijević, Željko
AU  - Vujčić, Ivica
AU  - Veljović, Đorđe
AU  - Vujisić, Miloš
AU  - Radovanović, Filip
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4342
AB  - Composite hydrogels capable of controlled drug delivery via ion exchange are an interesting group of materials for the construction of implantable drug reservoirs for electrically charged drugs. In this study, we synthesized composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) (PLGA-PAA) hydrogels by sequential application of UV or gamma irradiation and traditional phase inversion. Physicochemical properties of the composite PLGAPAA hydrogels were investigated using Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). We examined the ion exchange capacity (IEC) and swelling behavior of these materials to determine their potential as drug reservoirs. Composite PLGA-PAA hydrogel synthesized using UV irradiation (UV-PLGA-PAA) exhibited a porous microstructure with submicron-sized hydrogel-rich aggregates and homogeneous chemical composition. Swelling behavior and IEC of this material were highly reproducible. Composite PLGA-PAA hydrogels synthesized using gamma irradiation (G-PLGA-PAAs) had a less uniform microstructure with larger pores and micron-sized hydrogel-rich aggregates while exhibiting rather inhomogeneous chemical composition. These materials showed superior swelling properties, but a more variable IEC, compared to the material fabricated using UV irradiation. Results of DSC analysis showed a dose-dependent decrease in glass transition temperature for G-PLGA-PAAs indicating the effects of PLGA chain scission. Our findings indicate that gamma irradiation is a possible alternative to UV irradiation in the synthesis of composite PLGA-PAA hydrogels which can modify or control important material properties. However, the synthesis protocol using gamma irradiation should be further optimized to improve the IEC reproducibility. In our future research, we will investigate the in vitro release of charged drugs from synthesized composite PLGA-PAA hydrogels under physiological conditions.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Radiation Physics and Chemistry
T1  - Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties
VL  - 166
DO  - 10.1016/j.radphyschem.2019.108466
ER  - 

@article{
author = "Janićijević, Željko and Vujčić, Ivica and Veljović, Đorđe and Vujisić, Miloš and Radovanović, Filip",
year = "2020",
abstract = "Composite hydrogels capable of controlled drug delivery via ion exchange are an interesting group of materials for the construction of implantable drug reservoirs for electrically charged drugs. In this study, we synthesized composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) (PLGA-PAA) hydrogels by sequential application of UV or gamma irradiation and traditional phase inversion. Physicochemical properties of the composite PLGAPAA hydrogels were investigated using Fourier transform infrared spectroscopy with attenuated total reflectance (FTIR-ATR), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). We examined the ion exchange capacity (IEC) and swelling behavior of these materials to determine their potential as drug reservoirs. Composite PLGA-PAA hydrogel synthesized using UV irradiation (UV-PLGA-PAA) exhibited a porous microstructure with submicron-sized hydrogel-rich aggregates and homogeneous chemical composition. Swelling behavior and IEC of this material were highly reproducible. Composite PLGA-PAA hydrogels synthesized using gamma irradiation (G-PLGA-PAAs) had a less uniform microstructure with larger pores and micron-sized hydrogel-rich aggregates while exhibiting rather inhomogeneous chemical composition. These materials showed superior swelling properties, but a more variable IEC, compared to the material fabricated using UV irradiation. Results of DSC analysis showed a dose-dependent decrease in glass transition temperature for G-PLGA-PAAs indicating the effects of PLGA chain scission. Our findings indicate that gamma irradiation is a possible alternative to UV irradiation in the synthesis of composite PLGA-PAA hydrogels which can modify or control important material properties. However, the synthesis protocol using gamma irradiation should be further optimized to improve the IEC reproducibility. In our future research, we will investigate the in vitro release of charged drugs from synthesized composite PLGA-PAA hydrogels under physiological conditions.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Radiation Physics and Chemistry",
title = "Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties",
volume = "166",
doi = "10.1016/j.radphyschem.2019.108466"
}

Janićijević, Ž., Vujčić, I., Veljović, Đ., Vujisić, M.,& Radovanović, F.. (2020). Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. in Radiation Physics and Chemistry
Pergamon-Elsevier Science Ltd, Oxford., 166.
https://doi.org/10.1016/j.radphyschem.2019.108466

Janićijević Ž, Vujčić I, Veljović Đ, Vujisić M, Radovanović F. Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties. in Radiation Physics and Chemistry. 2020;166.
doi:10.1016/j.radphyschem.2019.108466 .

Janićijević, Željko, Vujčić, Ivica, Veljović, Đorđe, Vujisić, Miloš, Radovanović, Filip, "Composite poly(DL-lactide-co-glycolide)/poly(acrylic acid) hydrogels synthesized using UV and gamma irradiation: comparison of material properties" in Radiation Physics and Chemistry, 166 (2020),
https://doi.org/10.1016/j.radphyschem.2019.108466 . .

TY  - JOUR
AU  - Marković, Bojana M.
AU  - Spasojević, Vojislav
AU  - Dapčević, Aleksandra
AU  - Vuković, Zorica M.
AU  - Pavlović, Vladimir B.
AU  - Ranđelović, Danijela
AU  - Nastasović, Aleksandra
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4179
AB  - Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Characterization of glycidyl methacrylate based magnetic nanocomposites
EP  - 35
IS  - 1
SP  - 25
VL  - 73
DO  - 10.2298/HEMIND181113006M
ER  - 

@article{
author = "Marković, Bojana M. and Spasojević, Vojislav and Dapčević, Aleksandra and Vuković, Zorica M. and Pavlović, Vladimir B. and Ranđelović, Danijela and Nastasović, Aleksandra",
year = "2019",
abstract = "Magnetic and non-magnetic macroporous crosslinked copolymers of glycidyl methacrylate and trimethylolpropane trimethacrylate were prepared by suspension copolymerization and functionalized with diethylenetriamine. The samples were characterized by mercury porosimetry, scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), Fourier transform infrared spectroscopy analysis (FTIR-ATR), thermogravimetric analysis (TGA), X-ray diffractometry (XRD), atomic force microscopy (AFM), transmission electron microscopy (TEM) and SQUID magnetometry. The FTIR-ATR analysis of synthesized magnetic nanocomposites confirmed the presence of magnetite and successful aminofunctionalization. Non-functionalized and amino-functionalized nanocomposites exhibited superparamagnetic behavior at 300 K, with a saturation magnetization of 5.0 emu/g and 2.9 emu/g, respectively. TEM analysis of the magnetic nanocomposite has shown that magnetic nanoparticles were homogeneously dispersed in the polymer matrix. It was demonstrated that incorporation of magnetic nanoparticles enhanced the thermal stability of the magnetic nanocomposite in comparison to the initial non-magnetic macroporous copolymer.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Characterization of glycidyl methacrylate based magnetic nanocomposites",
pages = "35-25",
number = "1",
volume = "73",
doi = "10.2298/HEMIND181113006M"
}

Marković, B. M., Spasojević, V., Dapčević, A., Vuković, Z. M., Pavlović, V. B., Ranđelović, D.,& Nastasović, A.. (2019). Characterization of glycidyl methacrylate based magnetic nanocomposites. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 73(1), 25-35.
https://doi.org/10.2298/HEMIND181113006M

Marković BM, Spasojević V, Dapčević A, Vuković ZM, Pavlović VB, Ranđelović D, Nastasović A. Characterization of glycidyl methacrylate based magnetic nanocomposites. in Hemijska industrija. 2019;73(1):25-35.
doi:10.2298/HEMIND181113006M .

Marković, Bojana M., Spasojević, Vojislav, Dapčević, Aleksandra, Vuković, Zorica M., Pavlović, Vladimir B., Ranđelović, Danijela, Nastasović, Aleksandra, "Characterization of glycidyl methacrylate based magnetic nanocomposites" in Hemijska industrija, 73, no. 1 (2019):25-35,
https://doi.org/10.2298/HEMIND181113006M . .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Obradov, M.
AU  - Radulović, Katarina
AU  - Vasiljević-Radović, Dana
AU  - Radojević, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4228
AB  - Copper coatings are produced on silicon wafer by electrodeposition (ED) for various cathode current densities. The resulting composite systems consist of 10 mu m monolavered copper films electrodeposited from sulphate bath on Si wafers with sputtered layers of Cr/Au. Hardness measurements were performed to evaluate properties of the composites. The composite hardness (H-c) was characterized using Vickers microindentation test. Then, an artificial neural network (ANN) model was used to study the relationship between the parameters of metallic composite and their hardness. Two experimental values: applied load during indentation test and current density during the ED process were used as the inputs to the neural network. Finally, the results of the composite hardness (experimental and predicted) were used to estimate the film hardness (H-f) of copper for each variations of the current density. This article shows that ANN is an useful tool in modeling composite hardness change with variation of experimental parameters predicting hardness change of composite Si/Cu with average error of 6 %. Using created ANN model it is possible to predict microhardness of Cu film for current density or indentation load for which we do not have experimental data.
PB  - IEEE, Electron Devices Soc & Reliability Group, New York
C3  - 2019 IEEE 31st International Conference on Microelectronics (MIEL 2019)
T1  - Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters
EP  - 136
SP  - 133
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4228
ER  - 

@conference{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Obradov, M. and Radulović, Katarina and Vasiljević-Radović, Dana and Radojević, Vesna",
year = "2019",
abstract = "Copper coatings are produced on silicon wafer by electrodeposition (ED) for various cathode current densities. The resulting composite systems consist of 10 mu m monolavered copper films electrodeposited from sulphate bath on Si wafers with sputtered layers of Cr/Au. Hardness measurements were performed to evaluate properties of the composites. The composite hardness (H-c) was characterized using Vickers microindentation test. Then, an artificial neural network (ANN) model was used to study the relationship between the parameters of metallic composite and their hardness. Two experimental values: applied load during indentation test and current density during the ED process were used as the inputs to the neural network. Finally, the results of the composite hardness (experimental and predicted) were used to estimate the film hardness (H-f) of copper for each variations of the current density. This article shows that ANN is an useful tool in modeling composite hardness change with variation of experimental parameters predicting hardness change of composite Si/Cu with average error of 6 %. Using created ANN model it is possible to predict microhardness of Cu film for current density or indentation load for which we do not have experimental data.",
publisher = "IEEE, Electron Devices Soc & Reliability Group, New York",
journal = "2019 IEEE 31st International Conference on Microelectronics (MIEL 2019)",
title = "Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters",
pages = "136-133",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4228"
}

Mladenović, I., Lamovec, J., Jović, V., Obradov, M., Radulović, K., Vasiljević-Radović, D.,& Radojević, V.. (2019). Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters. in 2019 IEEE 31st International Conference on Microelectronics (MIEL 2019)
IEEE, Electron Devices Soc & Reliability Group, New York., 133-136.
https://hdl.handle.net/21.15107/rcub_technorep_4228

Mladenović I, Lamovec J, Jović V, Obradov M, Radulović K, Vasiljević-Radović D, Radojević V. Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters. in 2019 IEEE 31st International Conference on Microelectronics (MIEL 2019). 2019;:133-136.
https://hdl.handle.net/21.15107/rcub_technorep_4228 .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Obradov, M., Radulović, Katarina, Vasiljević-Radović, Dana, Radojević, Vesna, "Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters" in 2019 IEEE 31st International Conference on Microelectronics (MIEL 2019) (2019):133-136,
https://hdl.handle.net/21.15107/rcub_technorep_4228 .

TY  - JOUR
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Jaćimovski, Stevo
AU  - Jovanov, Goran
AU  - Radojević, Vesna
AU  - Šetrajčić, Jovan
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4292
AB  - Composite systems of monolayer and multilayer nickel films electrochemically deposited on single crystal (100)-oriented silicon wafers were fabricated with and without the ultrasonic agitation. The hardness and adhesion behaviour of these composite structures were characterized by Vickers microindentation test. The dependence of composite microhardness and film adhesion on the structure of the film and mixing conditions of electrolyte were analysed. Mathematical models of Chicot-Lesage and Chen-Gao were applied to experimental data in order to obtain the film hardness and adhesion parameter respectively. It is confirmed that the mechanical properties of composite systems of nickel thin films on silicon substrate can be enhanced by formation of multilayer film structure by ultrasound-assisted electro-deposition and by reducing the layer thickness in the multilayer film.
AB  - Formirani su kompozitni sistemi od jednoslojnih i višeslojnih filmova nikla elektrohemijski deponovanih sa i bez ultrazvučnog mešanja na pločicama od monokristalnog silicijuma orijentacije (100). Tvrdoća i adhezija tih kompozitnih struktura su okarakterisane testom mikrotvrdoće po Vikersu. Analizirana je zavisnost mikrotvrdoće kompozita i adhezije filma od strukture filma i uslova mešanja elektrolita. Matematički modeli Šiko-Lezaža i Čen-Gaoa su primenjeni na eksperimentalne podatke kako bi se dobile vrednosti tvrdoće filma i parametra adhezije. Potvrđeno je da se mehanička svojstva kompozitnih sistema sastavljenih od tankih filmova nikla na silicijumskoj podlozi mogu poboljšati formiranjem višeslojne strukture filmova, primenom ultrazvučnog mešanja pri elektrodepoziciji i smanjenjem debljine sloja u višeslojnom filmu.
PB  - Academy of Criminalistic and Police Studies, Belgrade
T2  - NBP. Nauka, bezbednost, policija
T1  - Hardness and assessment of adhesion of monolayer and multilayer nickel thin films electrochemically deposited on silicon substrates with and without the ultrasonic agitation
T1  - Tvrdoća i procena adhezije jednoslojnih i višeslojnih tankih filmova nikla elektrohemijski deponovanih na silicijumskim podlogama sa i bez ultrazvučnog mešanja
EP  - 29
IS  - 1
SP  - 17
VL  - 24
DO  - 10.5937/nabepo24-19682
ER  - 

@article{
author = "Lamovec, Jelena and Jović, Vesna and Jaćimovski, Stevo and Jovanov, Goran and Radojević, Vesna and Šetrajčić, Jovan",
year = "2019",
abstract = "Composite systems of monolayer and multilayer nickel films electrochemically deposited on single crystal (100)-oriented silicon wafers were fabricated with and without the ultrasonic agitation. The hardness and adhesion behaviour of these composite structures were characterized by Vickers microindentation test. The dependence of composite microhardness and film adhesion on the structure of the film and mixing conditions of electrolyte were analysed. Mathematical models of Chicot-Lesage and Chen-Gao were applied to experimental data in order to obtain the film hardness and adhesion parameter respectively. It is confirmed that the mechanical properties of composite systems of nickel thin films on silicon substrate can be enhanced by formation of multilayer film structure by ultrasound-assisted electro-deposition and by reducing the layer thickness in the multilayer film., Formirani su kompozitni sistemi od jednoslojnih i višeslojnih filmova nikla elektrohemijski deponovanih sa i bez ultrazvučnog mešanja na pločicama od monokristalnog silicijuma orijentacije (100). Tvrdoća i adhezija tih kompozitnih struktura su okarakterisane testom mikrotvrdoće po Vikersu. Analizirana je zavisnost mikrotvrdoće kompozita i adhezije filma od strukture filma i uslova mešanja elektrolita. Matematički modeli Šiko-Lezaža i Čen-Gaoa su primenjeni na eksperimentalne podatke kako bi se dobile vrednosti tvrdoće filma i parametra adhezije. Potvrđeno je da se mehanička svojstva kompozitnih sistema sastavljenih od tankih filmova nikla na silicijumskoj podlozi mogu poboljšati formiranjem višeslojne strukture filmova, primenom ultrazvučnog mešanja pri elektrodepoziciji i smanjenjem debljine sloja u višeslojnom filmu.",
publisher = "Academy of Criminalistic and Police Studies, Belgrade",
journal = "NBP. Nauka, bezbednost, policija",
title = "Hardness and assessment of adhesion of monolayer and multilayer nickel thin films electrochemically deposited on silicon substrates with and without the ultrasonic agitation, Tvrdoća i procena adhezije jednoslojnih i višeslojnih tankih filmova nikla elektrohemijski deponovanih na silicijumskim podlogama sa i bez ultrazvučnog mešanja",
pages = "29-17",
number = "1",
volume = "24",
doi = "10.5937/nabepo24-19682"
}

Lamovec, J., Jović, V., Jaćimovski, S., Jovanov, G., Radojević, V.,& Šetrajčić, J.. (2019). Hardness and assessment of adhesion of monolayer and multilayer nickel thin films electrochemically deposited on silicon substrates with and without the ultrasonic agitation. in NBP. Nauka, bezbednost, policija
Academy of Criminalistic and Police Studies, Belgrade., 24(1), 17-29.
https://doi.org/10.5937/nabepo24-19682

Lamovec J, Jović V, Jaćimovski S, Jovanov G, Radojević V, Šetrajčić J. Hardness and assessment of adhesion of monolayer and multilayer nickel thin films electrochemically deposited on silicon substrates with and without the ultrasonic agitation. in NBP. Nauka, bezbednost, policija. 2019;24(1):17-29.
doi:10.5937/nabepo24-19682 .

Lamovec, Jelena, Jović, Vesna, Jaćimovski, Stevo, Jovanov, Goran, Radojević, Vesna, Šetrajčić, Jovan, "Hardness and assessment of adhesion of monolayer and multilayer nickel thin films electrochemically deposited on silicon substrates with and without the ultrasonic agitation" in NBP. Nauka, bezbednost, policija, 24, no. 1 (2019):17-29,
https://doi.org/10.5937/nabepo24-19682 . .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Obradov, M.
AU  - Radulović, Katarina
AU  - Vasiljević-Radović, Dana
AU  - Radojević, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4186
AB  - Copper coatings are produced on silicon wafer by electrodeposition (ED) for various cathode current densities. The resulting composite systems consist of 10 μm monolayered copper films electrodeposited from sulphate bath on Si wafers with sputtered layers of Cr/Au. Hardness measurements were performed to evaluate properties of the composites. The composite hardness (H c ) was characterized using Vickers microindentation test. Then, an artificial neural network (ANN) model was used to study the relationship between the parameters of metallic composite and their hardness. Two experimental values: applied load during indentation test and current density during the ED process were used as the inputs to the neural network. Finally, the results of the composite hardness (experimental and predicted) were used to estimate the film hardness (H f ) of copper for each variations of the current density. This article shows that ANN is an useful tool in modeling composite hardness change with variation of experimental parameters predicting hardness change of composite Si/Cu with average error of 6 %. Using created ANN model it is possible to predict microhardness of Cu film for current density or indentation load for which we do not have experimental data.
PB  - Institute of Electrical and Electronics Engineers (IEEE)
C3  - 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
T1  - Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters
EP  - 136
SP  - 133
DO  - 10.1109/MIEL.2019.8889610
ER  - 

@conference{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Obradov, M. and Radulović, Katarina and Vasiljević-Radović, Dana and Radojević, Vesna",
year = "2019",
abstract = "Copper coatings are produced on silicon wafer by electrodeposition (ED) for various cathode current densities. The resulting composite systems consist of 10 μm monolayered copper films electrodeposited from sulphate bath on Si wafers with sputtered layers of Cr/Au. Hardness measurements were performed to evaluate properties of the composites. The composite hardness (H c ) was characterized using Vickers microindentation test. Then, an artificial neural network (ANN) model was used to study the relationship between the parameters of metallic composite and their hardness. Two experimental values: applied load during indentation test and current density during the ED process were used as the inputs to the neural network. Finally, the results of the composite hardness (experimental and predicted) were used to estimate the film hardness (H f ) of copper for each variations of the current density. This article shows that ANN is an useful tool in modeling composite hardness change with variation of experimental parameters predicting hardness change of composite Si/Cu with average error of 6 %. Using created ANN model it is possible to predict microhardness of Cu film for current density or indentation load for which we do not have experimental data.",
publisher = "Institute of Electrical and Electronics Engineers (IEEE)",
journal = "2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings",
title = "Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters",
pages = "136-133",
doi = "10.1109/MIEL.2019.8889610"
}

Mladenović, I., Lamovec, J., Jović, V., Obradov, M., Radulović, K., Vasiljević-Radović, D.,& Radojević, V.. (2019). Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
Institute of Electrical and Electronics Engineers (IEEE)., 133-136.
https://doi.org/10.1109/MIEL.2019.8889610

Mladenović I, Lamovec J, Jović V, Obradov M, Radulović K, Vasiljević-Radović D, Radojević V. Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings. 2019;:133-136.
doi:10.1109/MIEL.2019.8889610 .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Obradov, M., Radulović, Katarina, Vasiljević-Radović, Dana, Radojević, Vesna, "Artificial Neural Network for Composite Hardness Modeling of Cu/Si Systems Fabricated Using Various Electrodeposition Parameters" in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings (2019):133-136,
https://doi.org/10.1109/MIEL.2019.8889610 . .

TY  - JOUR
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Obradov, Marko
AU  - Vasiljević-Radović, Dana
AU  - Nikolić, Nebojša
AU  - Radojević, Vesna
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4069
AB  - The mechanical properties of systems consisting of copper coatings electrodeposited on both brass sheet (BS) and thick electrodeposited nickel coating (ED Ni) substrates have been investigated. The electrodeposition of copper coatings was performed with and without the ultrasound assistance. The ultrasound application decreases root mean square (RMS) roughness of deposited Cu coating on both applied substrates, as obtained from non-contact AFM measurement. The coating roughness is highly dependent on the substrate roughness, being the smallest for the Cu coatings deposited on ED Ni substrate with the ultrasound mixing. The hardness and adhesion properties were characterized using the Vickers microindentation test. Model of Korsunsky was applied to the experimental data for determination the film hardness and the model of Chen-Gao was used for the adhesion evaluation. The introduction of ultrasonic agitation caused the changes in the film microstructure, and consequently in the mechanical properties. The copper coatings on both substrates, have higher hardness when deposited from electrolyte with ultrasound agitation. Although the type of the substrate has the major influence on the adhesion strength, it can be said that Cu electrodeposition with ultrasonic mixing contributes to an increase in adhesion.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance
EP  - 741
IS  - 7
SP  - 729
VL  - 84
DO  - 10.2298/JSC181003023M
ER  - 

@article{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Obradov, Marko and Vasiljević-Radović, Dana and Nikolić, Nebojša and Radojević, Vesna",
year = "2019",
abstract = "The mechanical properties of systems consisting of copper coatings electrodeposited on both brass sheet (BS) and thick electrodeposited nickel coating (ED Ni) substrates have been investigated. The electrodeposition of copper coatings was performed with and without the ultrasound assistance. The ultrasound application decreases root mean square (RMS) roughness of deposited Cu coating on both applied substrates, as obtained from non-contact AFM measurement. The coating roughness is highly dependent on the substrate roughness, being the smallest for the Cu coatings deposited on ED Ni substrate with the ultrasound mixing. The hardness and adhesion properties were characterized using the Vickers microindentation test. Model of Korsunsky was applied to the experimental data for determination the film hardness and the model of Chen-Gao was used for the adhesion evaluation. The introduction of ultrasonic agitation caused the changes in the film microstructure, and consequently in the mechanical properties. The copper coatings on both substrates, have higher hardness when deposited from electrolyte with ultrasound agitation. Although the type of the substrate has the major influence on the adhesion strength, it can be said that Cu electrodeposition with ultrasonic mixing contributes to an increase in adhesion.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance",
pages = "741-729",
number = "7",
volume = "84",
doi = "10.2298/JSC181003023M"
}

Mladenović, I., Lamovec, J., Jović, V., Obradov, M., Vasiljević-Radović, D., Nikolić, N.,& Radojević, V.. (2019). Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 84(7), 729-741.
https://doi.org/10.2298/JSC181003023M

Mladenović I, Lamovec J, Jović V, Obradov M, Vasiljević-Radović D, Nikolić N, Radojević V. Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance. in Journal of the Serbian Chemical Society. 2019;84(7):729-741.
doi:10.2298/JSC181003023M .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Obradov, Marko, Vasiljević-Radović, Dana, Nikolić, Nebojša, Radojević, Vesna, "Mechanical characterization of copper coatings electrodeposited onto different substrates with and without ultrasound assistance" in Journal of the Serbian Chemical Society, 84, no. 7 (2019):729-741,
https://doi.org/10.2298/JSC181003023M . .

TY  - CONF
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Mladenović, Ivana
AU  - Radojević, Vesna
AU  - Jaćimovski, Stevo
AU  - Popović, Bogdan
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3765
AB  - Alternate electrodeposition of ordinary and ultrasonic-assisted Ni layers on polycrystalline copper substrates and single-crystal (100)-oriented silicon wafers was used for the formation of composite systems with nickel thin multilayer films. The hardness and adhesion properties of these composite systems were characterized using Vickers microhardness test, with different loads. Dependence of composite microhardness and film adhesion on type of substrate and layer thickness was investigated. Model of Korsunsky, Chicot-Lesage and Chen-Gao were chosen and applied to experimental data for obtaining the film hardness and adhesion evaluation, respectively. It is confirmed that in comparison with the conventional electrodeposited Ni films, the mechanical properties of the ultrasonic-assisted multilayer Ni films are improved. The microhardness and adhesion of the films are enhanced by introduction of ultrasound and by reducing the layer thickness in the film.
PB  - Belgrade : Military Technical Institute
C3  - Proceedings - 8th International scientific conference on defensive technologies-proceedings, Belgrad
T1  - Characterization of nickel thin multilayer films electrodeposited under different agitation conditions
EP  - 426
SP  - 421
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3765
ER  - 

@conference{
author = "Lamovec, Jelena and Jović, Vesna and Mladenović, Ivana and Radojević, Vesna and Jaćimovski, Stevo and Popović, Bogdan",
year = "2018",
abstract = "Alternate electrodeposition of ordinary and ultrasonic-assisted Ni layers on polycrystalline copper substrates and single-crystal (100)-oriented silicon wafers was used for the formation of composite systems with nickel thin multilayer films. The hardness and adhesion properties of these composite systems were characterized using Vickers microhardness test, with different loads. Dependence of composite microhardness and film adhesion on type of substrate and layer thickness was investigated. Model of Korsunsky, Chicot-Lesage and Chen-Gao were chosen and applied to experimental data for obtaining the film hardness and adhesion evaluation, respectively. It is confirmed that in comparison with the conventional electrodeposited Ni films, the mechanical properties of the ultrasonic-assisted multilayer Ni films are improved. The microhardness and adhesion of the films are enhanced by introduction of ultrasound and by reducing the layer thickness in the film.",
publisher = "Belgrade : Military Technical Institute",
journal = "Proceedings - 8th International scientific conference on defensive technologies-proceedings, Belgrad",
title = "Characterization of nickel thin multilayer films electrodeposited under different agitation conditions",
pages = "426-421",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3765"
}

Lamovec, J., Jović, V., Mladenović, I., Radojević, V., Jaćimovski, S.,& Popović, B.. (2018). Characterization of nickel thin multilayer films electrodeposited under different agitation conditions. in Proceedings - 8th International scientific conference on defensive technologies-proceedings, Belgrad
Belgrade : Military Technical Institute., 421-426.
https://hdl.handle.net/21.15107/rcub_technorep_3765

Lamovec J, Jović V, Mladenović I, Radojević V, Jaćimovski S, Popović B. Characterization of nickel thin multilayer films electrodeposited under different agitation conditions. in Proceedings - 8th International scientific conference on defensive technologies-proceedings, Belgrad. 2018;:421-426.
https://hdl.handle.net/21.15107/rcub_technorep_3765 .

Lamovec, Jelena, Jović, Vesna, Mladenović, Ivana, Radojević, Vesna, Jaćimovski, Stevo, Popović, Bogdan, "Characterization of nickel thin multilayer films electrodeposited under different agitation conditions" in Proceedings - 8th International scientific conference on defensive technologies-proceedings, Belgrad (2018):421-426,
https://hdl.handle.net/21.15107/rcub_technorep_3765 .

TY  - JOUR
AU  - Lamovec, Jelena
AU  - Mladenović, Ivana
AU  - Jović, Vesna
AU  - Radojević, Vesna
AU  - Jaćimovski, Stevo
AU  - Jovanov, Goran
PY  - 2018
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3831
AB  - Multilayer composite structures of electrodeposited Ni films on polycrystalline copper substrates were fabricated with the assistance of ultrasonic agitation. Alternate ordinary and ultrasonicassisted electrodeposition of Ni layers allowed the formation of laminated films. The adhesion and hardness properties were characterized using bidirectional bending test and Vickers microhardness test with different loads. Dependence of composite microhardness and film adhesion on layer thickness was investigated. It was confirmed that densified parallel interfaces give rise to high hardness and strength of composites. Model of Korsunsky was chosen and applied to experimental data for obtaining the film hardness and model of Chen-Gao was applied for the adhesion evaluation. Compared with the conventional electrodeposited Ni films, the mechanical properties of the ultrasonic-assisted multilayer Ni films are improved. The microhardness and adhesion of the films are enhanced by introduction of ultrasound and by reducing the layer thickness in the film.
AB  - Višeslojne kompozitne strukture su sačinjene od elektrodeponovanih filmova Ni na supstratima od polikristalnog bakra uz pomoć ultrazvučnog mešanja. Naizmenična elektrodepozicija slojeva Ni bez i uz pomoć ultrazvučnog mešanja omogućila je formiranje laminatnih filmova. Adhezija i tvrdoća su okarakterisane ispitivanjem na savijanje u dva pravca i Vikersovim testom mikrotvrdoće sa različitim opterećenjima. Zavisnost kompozitne mikrotvrdoće i adhezije filma od debljine sloja je ispitana. Potvrđeno je da veliki broj međuslojnih granica doprinosi povećanju tvrdoće i jačine kompozita. Za obradu eksperimentalnih podataka su odabrani i primenjeni model Korsunskog za izračunavanje tvrdoće filma i model Čen-Gao za procenu adhezije filma. U poređenju sa filmovima Ni elektrodeponovanim na konvencionalan način, mehanička svojstva filmova elektrodeponovanih u prisustvu uzltrazvuka su poboljšana. Vrednosti mikrotvrdoće i adhezije su povećane uvođenjem ultrazvuka i smanjenjem debljine pojedinačnog sloja Ni u filmu.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Obtaining and characterization of multilayer nickel thin films electrodeposited with the assistance of ultrasonic agitation
T1  - Dobijanje i karakterizacija višeslojnih tankih filmova nikla elektrodeponovanih uz pomoć ultrazvučnog mešanja
EP  - 400
IS  - 3
SP  - 394
VL  - 59
DO  - 10.5937/zasmat1803394L
ER  - 

@article{
author = "Lamovec, Jelena and Mladenović, Ivana and Jović, Vesna and Radojević, Vesna and Jaćimovski, Stevo and Jovanov, Goran",
year = "2018",
abstract = "Multilayer composite structures of electrodeposited Ni films on polycrystalline copper substrates were fabricated with the assistance of ultrasonic agitation. Alternate ordinary and ultrasonicassisted electrodeposition of Ni layers allowed the formation of laminated films. The adhesion and hardness properties were characterized using bidirectional bending test and Vickers microhardness test with different loads. Dependence of composite microhardness and film adhesion on layer thickness was investigated. It was confirmed that densified parallel interfaces give rise to high hardness and strength of composites. Model of Korsunsky was chosen and applied to experimental data for obtaining the film hardness and model of Chen-Gao was applied for the adhesion evaluation. Compared with the conventional electrodeposited Ni films, the mechanical properties of the ultrasonic-assisted multilayer Ni films are improved. The microhardness and adhesion of the films are enhanced by introduction of ultrasound and by reducing the layer thickness in the film., Višeslojne kompozitne strukture su sačinjene od elektrodeponovanih filmova Ni na supstratima od polikristalnog bakra uz pomoć ultrazvučnog mešanja. Naizmenična elektrodepozicija slojeva Ni bez i uz pomoć ultrazvučnog mešanja omogućila je formiranje laminatnih filmova. Adhezija i tvrdoća su okarakterisane ispitivanjem na savijanje u dva pravca i Vikersovim testom mikrotvrdoće sa različitim opterećenjima. Zavisnost kompozitne mikrotvrdoće i adhezije filma od debljine sloja je ispitana. Potvrđeno je da veliki broj međuslojnih granica doprinosi povećanju tvrdoće i jačine kompozita. Za obradu eksperimentalnih podataka su odabrani i primenjeni model Korsunskog za izračunavanje tvrdoće filma i model Čen-Gao za procenu adhezije filma. U poređenju sa filmovima Ni elektrodeponovanim na konvencionalan način, mehanička svojstva filmova elektrodeponovanih u prisustvu uzltrazvuka su poboljšana. Vrednosti mikrotvrdoće i adhezije su povećane uvođenjem ultrazvuka i smanjenjem debljine pojedinačnog sloja Ni u filmu.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Obtaining and characterization of multilayer nickel thin films electrodeposited with the assistance of ultrasonic agitation, Dobijanje i karakterizacija višeslojnih tankih filmova nikla elektrodeponovanih uz pomoć ultrazvučnog mešanja",
pages = "400-394",
number = "3",
volume = "59",
doi = "10.5937/zasmat1803394L"
}

Lamovec, J., Mladenović, I., Jović, V., Radojević, V., Jaćimovski, S.,& Jovanov, G.. (2018). Obtaining and characterization of multilayer nickel thin films electrodeposited with the assistance of ultrasonic agitation. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 59(3), 394-400.
https://doi.org/10.5937/zasmat1803394L

Lamovec J, Mladenović I, Jović V, Radojević V, Jaćimovski S, Jovanov G. Obtaining and characterization of multilayer nickel thin films electrodeposited with the assistance of ultrasonic agitation. in Zaštita materijala. 2018;59(3):394-400.
doi:10.5937/zasmat1803394L .

Lamovec, Jelena, Mladenović, Ivana, Jović, Vesna, Radojević, Vesna, Jaćimovski, Stevo, Jovanov, Goran, "Obtaining and characterization of multilayer nickel thin films electrodeposited with the assistance of ultrasonic agitation" in Zaštita materijala, 59, no. 3 (2018):394-400,
https://doi.org/10.5937/zasmat1803394L . .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Popović, Bogdan
AU  - Vorkapić, Miloš
AU  - Radojević, Vesna
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3485
AB  - Microhardness test is the most commonly used method for assessing the mechanical properties of thin films.This testing method uses controlled contact at a single point of an indenter and chosen material which induces the plastic deformation in material under indenter. The measured hardness is considered as the composite hardness, because the substrate participates in the plastic deformation caused by indentation. This research has been carried out in order to analyze and compare the hardness response of different composite systems consist of monolayer electrodeposited copper thin film on brass and steel alloys as the substrates. The influence of the electrodeposition parameters and of the substrate on the hardness and interlayer adhesion were investigated by Vickers microhardness testing for different load.
PB  - Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering
C3  - Proceedings of 4th International Conference on Electrical, Electronics and Computing Engineering, Ic
T1  - Hardness response and adhesion of thin copper films on alloy substrates
EP  - MOI1.3.6
SP  - MOI1.3.1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3485
ER  - 

@conference{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Popović, Bogdan and Vorkapić, Miloš and Radojević, Vesna",
year = "2017",
abstract = "Microhardness test is the most commonly used method for assessing the mechanical properties of thin films.This testing method uses controlled contact at a single point of an indenter and chosen material which induces the plastic deformation in material under indenter. The measured hardness is considered as the composite hardness, because the substrate participates in the plastic deformation caused by indentation. This research has been carried out in order to analyze and compare the hardness response of different composite systems consist of monolayer electrodeposited copper thin film on brass and steel alloys as the substrates. The influence of the electrodeposition parameters and of the substrate on the hardness and interlayer adhesion were investigated by Vickers microhardness testing for different load.",
publisher = "Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering",
journal = "Proceedings of 4th International Conference on Electrical, Electronics and Computing Engineering, Ic",
title = "Hardness response and adhesion of thin copper films on alloy substrates",
pages = "MOI1.3.6-MOI1.3.1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3485"
}

Mladenović, I., Lamovec, J., Jović, V., Popović, B., Vorkapić, M.,& Radojević, V.. (2017). Hardness response and adhesion of thin copper films on alloy substrates. in Proceedings of 4th International Conference on Electrical, Electronics and Computing Engineering, Ic
Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering., MOI1.3.1-MOI1.3.6.
https://hdl.handle.net/21.15107/rcub_technorep_3485

Mladenović I, Lamovec J, Jović V, Popović B, Vorkapić M, Radojević V. Hardness response and adhesion of thin copper films on alloy substrates. in Proceedings of 4th International Conference on Electrical, Electronics and Computing Engineering, Ic. 2017;:MOI1.3.1-MOI1.3.6.
https://hdl.handle.net/21.15107/rcub_technorep_3485 .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Popović, Bogdan, Vorkapić, Miloš, Radojević, Vesna, "Hardness response and adhesion of thin copper films on alloy substrates" in Proceedings of 4th International Conference on Electrical, Electronics and Computing Engineering, Ic (2017):MOI1.3.1-MOI1.3.6,
https://hdl.handle.net/21.15107/rcub_technorep_3485 .

TY  - JOUR
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Radojević, Vesna
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3529
AB  - Thin copper films were electrodeposited on a polycrystalline cold rolled copper substrate. The composition of the laboratory-made copper sulphate electrolyte was changed by the addition of various additives. The influence of chloride ion (Cl-), polyethylene glycol (PEG) and 3-mercapto-1-propane sulfonic acid (MPSA) on mechanical and adhesion properties of the electrodeposited copper films was investigated using Vickers microindentation technique. Calculations of the film hardness and adhesion were carried out using composite hardness models of Korsunsky and Chen-Gao. The hardness of the composite system is influenced by the adhesion of the copper film to the substrate. Increasing adhesion corresponds to increasing values of the calculated adhesion parameter b, named the critical reduced depth. When additives are added to a plating solution, the copper deposition mechanism is changed and fine-grained microstructure without the formation of microscopic nodules is obtained.
PB  - Faculty of Technical Sciences in Cacak
T2  - Serbian Journal of Electrical Engineering
T1  - Synergetic effect of additives on the hardness and adhesion of thin electrodeposited copper films
EP  - 11
IS  - 1
SP  - 1
VL  - 14
DO  - 10.2298/SJEE1701001M
ER  - 

@article{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Radojević, Vesna",
year = "2017",
abstract = "Thin copper films were electrodeposited on a polycrystalline cold rolled copper substrate. The composition of the laboratory-made copper sulphate electrolyte was changed by the addition of various additives. The influence of chloride ion (Cl-), polyethylene glycol (PEG) and 3-mercapto-1-propane sulfonic acid (MPSA) on mechanical and adhesion properties of the electrodeposited copper films was investigated using Vickers microindentation technique. Calculations of the film hardness and adhesion were carried out using composite hardness models of Korsunsky and Chen-Gao. The hardness of the composite system is influenced by the adhesion of the copper film to the substrate. Increasing adhesion corresponds to increasing values of the calculated adhesion parameter b, named the critical reduced depth. When additives are added to a plating solution, the copper deposition mechanism is changed and fine-grained microstructure without the formation of microscopic nodules is obtained.",
publisher = "Faculty of Technical Sciences in Cacak",
journal = "Serbian Journal of Electrical Engineering",
title = "Synergetic effect of additives on the hardness and adhesion of thin electrodeposited copper films",
pages = "11-1",
number = "1",
volume = "14",
doi = "10.2298/SJEE1701001M"
}

Mladenović, I., Lamovec, J., Jović, V.,& Radojević, V.. (2017). Synergetic effect of additives on the hardness and adhesion of thin electrodeposited copper films. in Serbian Journal of Electrical Engineering
Faculty of Technical Sciences in Cacak., 14(1), 1-11.
https://doi.org/10.2298/SJEE1701001M

Mladenović I, Lamovec J, Jović V, Radojević V. Synergetic effect of additives on the hardness and adhesion of thin electrodeposited copper films. in Serbian Journal of Electrical Engineering. 2017;14(1):1-11.
doi:10.2298/SJEE1701001M .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Radojević, Vesna, "Synergetic effect of additives on the hardness and adhesion of thin electrodeposited copper films" in Serbian Journal of Electrical Engineering, 14, no. 1 (2017):1-11,
https://doi.org/10.2298/SJEE1701001M . .

TY  - CONF
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Mladenović, Ivana
AU  - Popović, Bogdan
AU  - Vorkapić, Miloš
AU  - Radojević, Vesna
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3174
AB  - Composite systems of monolayered electrodeposited Ni and Cu thin films (5-10 μm) on monocrystalline Si wafers and 50 μm-thick electrodeposited Ni film as the substrates were fabricated. On the basis of their difference in hardness, these systems can be thought of as “soft film on hard substrate” composite systems. Adhesion of electrodeposited films on different substrates was investigated by Vickers microindentation hardness testing. Strong adhesion corresponds to extended plastic deformation zone at the film/substrate interface. Interfacial tension effects contribute to the measured hardness. Composite hardness models of Chicot-Lesage (C-L) and Chen-Gao (C-G) were applied in order to investigate the influence of adhesion on microhardness test results. When adhesion exists between the film and the substrate, the critical reduced depth (the ratio between the radius of the plastic zone beneath the indent and the indentation depth) increases. Microhardness measurements are useful tool for assessment and quantification of the film/substrate interface strength.
PB  - Belgrade : Military Technical Institute
C3  - Proceedings - 7th International scientific conference on defensive technologies-proceedings, Belgrad
T1  - On the correlation of microhardness with the film adhesion for “soft film on hard substrate” composite system
EP  - 540
SP  - 536
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3174
ER  - 

@conference{
author = "Lamovec, Jelena and Jović, Vesna and Mladenović, Ivana and Popović, Bogdan and Vorkapić, Miloš and Radojević, Vesna",
year = "2016",
abstract = "Composite systems of monolayered electrodeposited Ni and Cu thin films (5-10 μm) on monocrystalline Si wafers and 50 μm-thick electrodeposited Ni film as the substrates were fabricated. On the basis of their difference in hardness, these systems can be thought of as “soft film on hard substrate” composite systems. Adhesion of electrodeposited films on different substrates was investigated by Vickers microindentation hardness testing. Strong adhesion corresponds to extended plastic deformation zone at the film/substrate interface. Interfacial tension effects contribute to the measured hardness. Composite hardness models of Chicot-Lesage (C-L) and Chen-Gao (C-G) were applied in order to investigate the influence of adhesion on microhardness test results. When adhesion exists between the film and the substrate, the critical reduced depth (the ratio between the radius of the plastic zone beneath the indent and the indentation depth) increases. Microhardness measurements are useful tool for assessment and quantification of the film/substrate interface strength.",
publisher = "Belgrade : Military Technical Institute",
journal = "Proceedings - 7th International scientific conference on defensive technologies-proceedings, Belgrad",
title = "On the correlation of microhardness with the film adhesion for “soft film on hard substrate” composite system",
pages = "540-536",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3174"
}

Lamovec, J., Jović, V., Mladenović, I., Popović, B., Vorkapić, M.,& Radojević, V.. (2016). On the correlation of microhardness with the film adhesion for “soft film on hard substrate” composite system. in Proceedings - 7th International scientific conference on defensive technologies-proceedings, Belgrad
Belgrade : Military Technical Institute., 536-540.
https://hdl.handle.net/21.15107/rcub_technorep_3174

Lamovec J, Jović V, Mladenović I, Popović B, Vorkapić M, Radojević V. On the correlation of microhardness with the film adhesion for “soft film on hard substrate” composite system. in Proceedings - 7th International scientific conference on defensive technologies-proceedings, Belgrad. 2016;:536-540.
https://hdl.handle.net/21.15107/rcub_technorep_3174 .

Lamovec, Jelena, Jović, Vesna, Mladenović, Ivana, Popović, Bogdan, Vorkapić, Miloš, Radojević, Vesna, "On the correlation of microhardness with the film adhesion for “soft film on hard substrate” composite system" in Proceedings - 7th International scientific conference on defensive technologies-proceedings, Belgrad (2016):536-540,
https://hdl.handle.net/21.15107/rcub_technorep_3174 .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Radojević, Vesna
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3156
AB  - Tanki bakarni filmovi debljine 10 μm deponovani su na hladno-valjanim supstratima od bakra i mesinga procesom elektrohemijske depozicije iz laboratorijski napravljenog sulfatnog kupatila sa dodatkom različitih aditiva (hloridnih jona (Cl-) i polietilen glikola (PEG)). Ispitivan je uticaj aditiva i parametara depozicije na strukturna i mehanička svojstva bakarnih prevlaka. Prisustvo aditiva omogućilo je nastajanje glatkih i sjajnih depozita usled promene njihove mikrostrukture. Mikromehanička svojstva filmova bakra ispitivana su metodom mikroindentacije po Vikersu. Izmerena vrednost tvrdoće kompozitnog sistema Cu film – supstrat je složena funkcija tvrdoće supstrata i tvrdoće filma. Za određivanje tvrdoće filmova iz kompozitne mikrotvrdoće korišćeni su modeli Korsunskog i Šiko-Lezaža. Eksperimentalna ispitivanja su pokazala da se istovremenim dodatkom aditiva (PEG+Cl-) ostvaruje kvalitetnija mikrostruktura depozita koji usled toga imaju bolja mikromehanička svojstva.
PB  - Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering
C3  - Zbornik 60. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni
T1  - Sinergetski efekat aditiva na morfološka i mikromehanička svojstva bakarnih prevlaka na različitim podlogama
EP  - MO1.1.6
SP  - MO1.1.1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_3156
ER  - 

@conference{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Radojević, Vesna",
year = "2016",
abstract = "Tanki bakarni filmovi debljine 10 μm deponovani su na hladno-valjanim supstratima od bakra i mesinga procesom elektrohemijske depozicije iz laboratorijski napravljenog sulfatnog kupatila sa dodatkom različitih aditiva (hloridnih jona (Cl-) i polietilen glikola (PEG)). Ispitivan je uticaj aditiva i parametara depozicije na strukturna i mehanička svojstva bakarnih prevlaka. Prisustvo aditiva omogućilo je nastajanje glatkih i sjajnih depozita usled promene njihove mikrostrukture. Mikromehanička svojstva filmova bakra ispitivana su metodom mikroindentacije po Vikersu. Izmerena vrednost tvrdoće kompozitnog sistema Cu film – supstrat je složena funkcija tvrdoće supstrata i tvrdoće filma. Za određivanje tvrdoće filmova iz kompozitne mikrotvrdoće korišćeni su modeli Korsunskog i Šiko-Lezaža. Eksperimentalna ispitivanja su pokazala da se istovremenim dodatkom aditiva (PEG+Cl-) ostvaruje kvalitetnija mikrostruktura depozita koji usled toga imaju bolja mikromehanička svojstva.",
publisher = "Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering",
journal = "Zbornik 60. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni",
title = "Sinergetski efekat aditiva na morfološka i mikromehanička svojstva bakarnih prevlaka na različitim podlogama",
pages = "MO1.1.6-MO1.1.1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_3156"
}

Mladenović, I., Lamovec, J., Jović, V.,& Radojević, V.. (2016). Sinergetski efekat aditiva na morfološka i mikromehanička svojstva bakarnih prevlaka na različitim podlogama. in Zbornik 60. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni
Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering., MO1.1.1-MO1.1.6.
https://hdl.handle.net/21.15107/rcub_technorep_3156

Mladenović I, Lamovec J, Jović V, Radojević V. Sinergetski efekat aditiva na morfološka i mikromehanička svojstva bakarnih prevlaka na različitim podlogama. in Zbornik 60. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni. 2016;:MO1.1.1-MO1.1.6.
https://hdl.handle.net/21.15107/rcub_technorep_3156 .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Radojević, Vesna, "Sinergetski efekat aditiva na morfološka i mikromehanička svojstva bakarnih prevlaka na različitim podlogama" in Zbornik 60. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni (2016):MO1.1.1-MO1.1.6,
https://hdl.handle.net/21.15107/rcub_technorep_3156 .

TY  - JOUR
AU  - Tomković, Tanja
AU  - Radovanović, Filip
AU  - Grgur, Branimir
AU  - Nastasović, Aleksandra
AU  - Vasiljević-Radović, Dana
AU  - Onjia, Antonije
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3255
AB  - A novel method combining a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution was used to prepare asymmetric polyethersulfone membranes with submicron particles incorporating glycidyl methacrylate copolymer. In order to introduce sulfonic groups, the epoxide rings of glycidyl methacrylate were opened using two methods. The first method was functionalization with sodium sulfite, and the second was functionalization with sulfuric acid and then grafting with 2-acrylamido-2-methylpropanesulfonic acid. The obtained membranes were characterized using infrared spectroscopy, conductometric titration and water permeability measurements. Scanning electron microscopy and atomic force microscopy were used to investigate the surface morphology and topology of the membranes. Dynamic adsorption of rhodamine B as a model dye was used to demonstrate the suitability of these novel membranes for membrane adsorption since the adsorption capacity for dye cations was much better for the membranes functionalized with sodium sulfite and the membranes grafted with 2-acrylamido-2-methylpropanesulfonic acid compared to the non-functionalized membranes.
PB  - Srpsko hemijsko društvo, Beograd
T2  - Journal of the Serbian Chemical Society
T1  - Novel negatively charged membrane adsorbers made using a combination of photopolymerization and immersion precipitation
EP  - 431
IS  - 4
SP  - 419
VL  - 81
DO  - 10.2298/JSC150805083T
ER  - 

@article{
author = "Tomković, Tanja and Radovanović, Filip and Grgur, Branimir and Nastasović, Aleksandra and Vasiljević-Radović, Dana and Onjia, Antonije",
year = "2016",
abstract = "A novel method combining a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution was used to prepare asymmetric polyethersulfone membranes with submicron particles incorporating glycidyl methacrylate copolymer. In order to introduce sulfonic groups, the epoxide rings of glycidyl methacrylate were opened using two methods. The first method was functionalization with sodium sulfite, and the second was functionalization with sulfuric acid and then grafting with 2-acrylamido-2-methylpropanesulfonic acid. The obtained membranes were characterized using infrared spectroscopy, conductometric titration and water permeability measurements. Scanning electron microscopy and atomic force microscopy were used to investigate the surface morphology and topology of the membranes. Dynamic adsorption of rhodamine B as a model dye was used to demonstrate the suitability of these novel membranes for membrane adsorption since the adsorption capacity for dye cations was much better for the membranes functionalized with sodium sulfite and the membranes grafted with 2-acrylamido-2-methylpropanesulfonic acid compared to the non-functionalized membranes.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Novel negatively charged membrane adsorbers made using a combination of photopolymerization and immersion precipitation",
pages = "431-419",
number = "4",
volume = "81",
doi = "10.2298/JSC150805083T"
}

Tomković, T., Radovanović, F., Grgur, B., Nastasović, A., Vasiljević-Radović, D.,& Onjia, A.. (2016). Novel negatively charged membrane adsorbers made using a combination of photopolymerization and immersion precipitation. in Journal of the Serbian Chemical Society
Srpsko hemijsko društvo, Beograd., 81(4), 419-431.
https://doi.org/10.2298/JSC150805083T

Tomković T, Radovanović F, Grgur B, Nastasović A, Vasiljević-Radović D, Onjia A. Novel negatively charged membrane adsorbers made using a combination of photopolymerization and immersion precipitation. in Journal of the Serbian Chemical Society. 2016;81(4):419-431.
doi:10.2298/JSC150805083T .

Tomković, Tanja, Radovanović, Filip, Grgur, Branimir, Nastasović, Aleksandra, Vasiljević-Radović, Dana, Onjia, Antonije, "Novel negatively charged membrane adsorbers made using a combination of photopolymerization and immersion precipitation" in Journal of the Serbian Chemical Society, 81, no. 4 (2016):419-431,
https://doi.org/10.2298/JSC150805083T . .

TY  - JOUR
AU  - Nastasović, Aleksandra
AU  - Ekmeščić, Bojana
AU  - Sandić, Zvjezdana P.
AU  - Ranđelović, Danijela
AU  - Mozetić, Miran
AU  - Vesel, Alenka
AU  - Onjia, Antonije
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3230
AB  - The mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME) functionalized by reaction of the pendant epoxy groups with diethylene triamine (PGME-deta) was studied using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) analysis. Atomic force microscopy (AFM) and scanning energy-dispersive X-ray spectroscopy (SEM-EDX) were used for the determination of surface morphology of the copolymer particles. The sorption behavior of heavy metals Cu(II), Cd(II) and Pb(II) ions sorption was investigated in batch static experiments under non-competitive conditions at room temperature (298 K). The obtained results were fitted to pseudo-first order, pseudo-second order and intraparticle diffusion kinetic model. The kinetics studies showed that Cu(II), Cd(II) and Pb(II) sorption obeys the pseudo-second-order model under all investigated operating conditions with evident influence of pore diffusion.
PB  - Elsevier Science Bv, Amsterdam
T2  - Applied Surface Science
T1  - Mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)
EP  - 615
SP  - 605
VL  - 385
DO  - 10.1016/j.apsusc.2016.05.165
ER  - 

@article{
author = "Nastasović, Aleksandra and Ekmeščić, Bojana and Sandić, Zvjezdana P. and Ranđelović, Danijela and Mozetić, Miran and Vesel, Alenka and Onjia, Antonije",
year = "2016",
abstract = "The mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate) (PGME) functionalized by reaction of the pendant epoxy groups with diethylene triamine (PGME-deta) was studied using X-ray photoelectron spectroscopy (XPS) and Fourier transform infrared spectroscopy (FTIR) analysis. Atomic force microscopy (AFM) and scanning energy-dispersive X-ray spectroscopy (SEM-EDX) were used for the determination of surface morphology of the copolymer particles. The sorption behavior of heavy metals Cu(II), Cd(II) and Pb(II) ions sorption was investigated in batch static experiments under non-competitive conditions at room temperature (298 K). The obtained results were fitted to pseudo-first order, pseudo-second order and intraparticle diffusion kinetic model. The kinetics studies showed that Cu(II), Cd(II) and Pb(II) sorption obeys the pseudo-second-order model under all investigated operating conditions with evident influence of pore diffusion.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Applied Surface Science",
title = "Mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)",
pages = "615-605",
volume = "385",
doi = "10.1016/j.apsusc.2016.05.165"
}

Nastasović, A., Ekmeščić, B., Sandić, Z. P., Ranđelović, D., Mozetić, M., Vesel, A.,& Onjia, A.. (2016). Mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate). in Applied Surface Science
Elsevier Science Bv, Amsterdam., 385, 605-615.
https://doi.org/10.1016/j.apsusc.2016.05.165

Nastasović A, Ekmeščić B, Sandić ZP, Ranđelović D, Mozetić M, Vesel A, Onjia A. Mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate). in Applied Surface Science. 2016;385:605-615.
doi:10.1016/j.apsusc.2016.05.165 .

Nastasović, Aleksandra, Ekmeščić, Bojana, Sandić, Zvjezdana P., Ranđelović, Danijela, Mozetić, Miran, Vesel, Alenka, Onjia, Antonije, "Mechanism of Cu(II), Cd(II) and Pb(II) ions sorption from aqueous solutions by macroporous poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate)" in Applied Surface Science, 385 (2016):605-615,
https://doi.org/10.1016/j.apsusc.2016.05.165 . .

TY  - CONF
AU  - Mladenović, Ivana
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Radojević, Vesna
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2871
AB  - Multilayer Ni/Cu films were alternately electrochemically deposited on polycrystalline Cu substrate by dual-bath technique. Change of the parameters such as total film thickness, sublayer thickness and sublayer thickness ratio influences the mechanical properties of the multilayer Ni/Cu films and gives the possibilities for different MEMS fabrication applications. Thin Ni and Cu films with sublayer thickness from 75 nm to 5 µm have good interlayer adhesion. Decreasing the sublayer thickness leads to increase in the composite microhardness value. Delamination of the layers is noticed for the sublayer thickness greater than 5 µm. Three-dimensional Ni microstructures can be fabricated using multilayer Ni/Cu film by selective etching of Cu layers in in acidic thiourea solution („surface micromachining“ technique).
AB  - Tehnikom elektrohemijske depozicije iz dva kupatila (DBT), dobijeni su višeslojni filmovi Ni i Cu naizmeničnim deponovanjem na polikristalni bakarni supstrat. Promena parametara kao što su ukupna debljina filma, debljina pojedinačnog sloja i odnos debljina pojedinačnih slojeva Ni i Cu u filmu, utiče na mehanička svojstva višeslojnih filmova i omogućava formiranje različitih struktura za njihovu primenu u MEMS-u. Tanki filmovi Ni i Cu sa debljinom slojeva od 75 nm do 5 μm pokazuju dobru međuslojnu adheziju. Smanjenjem debljine pojedinačnog sloja do 300 nm i povećanjem odnosa debljina slojeva Ni:Cu na 1:4, došlo se do višestrukog povećanja vrednosti Vikersove mikrotvrdoće u odnosu na jednoslojne metalne filmove. Filmovi sa debljinom slojeva većom od 5 mikrometara, nemaju dobru medjuslojnu adheziju i uočava se delaminacija slojeva. Sve strukture višeslojnih filmova Ni i Cu se mogu primeniti za izradu trodimenzionalnih MEMS struktura od nikla, metodom selektivnog nagrizanja sloja bakra u kiselom rastvoru tiouree (tehnikom „površinskog mikromašinstva“).
PB  - Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering
C3  - Zbornik 59. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni
T1  - Influence of the structure of multilayer thin Ni/Cu films
on their mechanical properties and MEMS devices
fabrication applications
T1  - Uticaj strukture višeslojnih tankih filmova nikla i bakra na njihova mehanička svojstva i primenu u izradi MEMS naprava
EP  - MO2.1.4
SP  - MO2.1.1
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2871
ER  - 

@conference{
author = "Mladenović, Ivana and Lamovec, Jelena and Jović, Vesna and Radojević, Vesna",
year = "2015",
abstract = "Multilayer Ni/Cu films were alternately electrochemically deposited on polycrystalline Cu substrate by dual-bath technique. Change of the parameters such as total film thickness, sublayer thickness and sublayer thickness ratio influences the mechanical properties of the multilayer Ni/Cu films and gives the possibilities for different MEMS fabrication applications. Thin Ni and Cu films with sublayer thickness from 75 nm to 5 µm have good interlayer adhesion. Decreasing the sublayer thickness leads to increase in the composite microhardness value. Delamination of the layers is noticed for the sublayer thickness greater than 5 µm. Three-dimensional Ni microstructures can be fabricated using multilayer Ni/Cu film by selective etching of Cu layers in in acidic thiourea solution („surface micromachining“ technique)., Tehnikom elektrohemijske depozicije iz dva kupatila (DBT), dobijeni su višeslojni filmovi Ni i Cu naizmeničnim deponovanjem na polikristalni bakarni supstrat. Promena parametara kao što su ukupna debljina filma, debljina pojedinačnog sloja i odnos debljina pojedinačnih slojeva Ni i Cu u filmu, utiče na mehanička svojstva višeslojnih filmova i omogućava formiranje različitih struktura za njihovu primenu u MEMS-u. Tanki filmovi Ni i Cu sa debljinom slojeva od 75 nm do 5 μm pokazuju dobru međuslojnu adheziju. Smanjenjem debljine pojedinačnog sloja do 300 nm i povećanjem odnosa debljina slojeva Ni:Cu na 1:4, došlo se do višestrukog povećanja vrednosti Vikersove mikrotvrdoće u odnosu na jednoslojne metalne filmove. Filmovi sa debljinom slojeva većom od 5 mikrometara, nemaju dobru medjuslojnu adheziju i uočava se delaminacija slojeva. Sve strukture višeslojnih filmova Ni i Cu se mogu primeniti za izradu trodimenzionalnih MEMS struktura od nikla, metodom selektivnog nagrizanja sloja bakra u kiselom rastvoru tiouree (tehnikom „površinskog mikromašinstva“).",
publisher = "Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering",
journal = "Zbornik 59. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni",
title = "Influence of the structure of multilayer thin Ni/Cu films
on their mechanical properties and MEMS devices
fabrication applications, Uticaj strukture višeslojnih tankih filmova nikla i bakra na njihova mehanička svojstva i primenu u izradi MEMS naprava",
pages = "MO2.1.4-MO2.1.1",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2871"
}

Mladenović, I., Lamovec, J., Jović, V.,& Radojević, V.. (2015). Influence of the structure of multilayer thin Ni/Cu films
on their mechanical properties and MEMS devices
fabrication applications. in Zbornik 59. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni
Belgrade: ETRAN – Society for electronics, telecommunication, computing, automatics and nuclear engineering., MO2.1.1-MO2.1.4.
https://hdl.handle.net/21.15107/rcub_technorep_2871

Mladenović I, Lamovec J, Jović V, Radojević V. Influence of the structure of multilayer thin Ni/Cu films
on their mechanical properties and MEMS devices
fabrication applications. in Zbornik 59. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni. 2015;:MO2.1.1-MO2.1.4.
https://hdl.handle.net/21.15107/rcub_technorep_2871 .

Mladenović, Ivana, Lamovec, Jelena, Jović, Vesna, Radojević, Vesna, "Influence of the structure of multilayer thin Ni/Cu films
on their mechanical properties and MEMS devices
fabrication applications" in Zbornik 59. konferencije za elektroniku, telekomunikacije, računarstvo, automatiku i nuklearnu tehni (2015):MO2.1.1-MO2.1.4,
https://hdl.handle.net/21.15107/rcub_technorep_2871 .

TY  - JOUR
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Mladenović, Ivana
AU  - Stojanović, Dušica
AU  - Kojović, Aleksandar
AU  - Radojević, Vesna
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2961
AB  - This investigation has been carried out in order to analyse and compare the hardness response of different composite systems of the same type, named 'soft film on hard substrate' composite system. Composite systems of mono- and multilayered electrodeposited Ni and Cu thin films on (100) and (111)-oriented monocrystalline Si wafers and 100 µm-thick electrodeposited Ni film as the substrates were fabricated. The indentation behaviour of these composite structures was characterized using Berkovich nanohardness and Vickers microhardness testing. The measured hardness is so-called 'composite hardness', because the substrate participates in the plastic deformation during the indentation process. The contribution of the substrate to the measured hardness starts at indentation depths of the order of 0.07- 0.2 times the film thickness. Dependence of nanohardness and microhardness values on electrodeposition process conditions, substrate and film microstructure, total film thickness, layer thickness and Ni/Cu layer thickness ratio for different composite systems ratio was investigated. Composite hardness model of Chicot-Lesage (C-L) was chosen and applied to experimental data in order to determine absolute film hardness.
AB  - Ovo istraživanje je izvršeno u cilju analize i upoređivanja odziva različitih kompozitnih sistema koji pripadaju istom tipu sistema nazvanom 'mek film na tvrdom supstratu', pri merenju tvrdoće. Formirani su kompozitni sistemi elektrodepozicijom jedno- i višeslojnih Ni i Cu tankih filmova na (100) i (111)- orijentisanim monokristalnim Si pločicama i 100-µm debelom elektrodeponovanom Ni filmu kao supstratima. Ponašanje ovih kompozitnih struktura pri utiskivanju je okarakterisano merenjem nanotvrdoće po Berkoviču i mikrotvrdoće po Vikersu. Izmerena vrednost mikrotvrdoće se naziva 'kompozitnom tvrdoćom' jer prilikom testiranja utiskivanjem dolazi i do plastične deformacije supstrata. Doprinos deformacije supstrata izmerenoj tvrdoći počinje na dubinama utiskivanja koje su reda 0.07-0.2 puta manje od debljine filma. Istraživana je zavisnost vrednosti nanotvrdoće i mikrotvrdoće od procesnih parametera elektrodepozicije, mikrostrukture supstrata i filmova, ukupne debljine filma, debljine pojedinačnog sloja u filmu i odnosa debljina Ni/Cu pojedinačnih slojeva u filmu za različite kompozitne sisteme. Radi određivanja apsolutne tvrdoće filma u sistemu, odabran je i na eksperimentalne rezultate primenjen model kompozitne tvrdoće Šiko-Lezaž (C-L).
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Indentation behaviour of 'soft film on hard substrate' composite system type
T1  - Ponašanje kompozitnih sistema tipa 'mek film na tvrdom supstratu' na testu utiskivanja
EP  - 277
IS  - 3
SP  - 269
VL  - 56
DO  - 10.5937/ZasMat1503269L
ER  - 

@article{
author = "Lamovec, Jelena and Jović, Vesna and Mladenović, Ivana and Stojanović, Dušica and Kojović, Aleksandar and Radojević, Vesna",
year = "2015",
abstract = "This investigation has been carried out in order to analyse and compare the hardness response of different composite systems of the same type, named 'soft film on hard substrate' composite system. Composite systems of mono- and multilayered electrodeposited Ni and Cu thin films on (100) and (111)-oriented monocrystalline Si wafers and 100 µm-thick electrodeposited Ni film as the substrates were fabricated. The indentation behaviour of these composite structures was characterized using Berkovich nanohardness and Vickers microhardness testing. The measured hardness is so-called 'composite hardness', because the substrate participates in the plastic deformation during the indentation process. The contribution of the substrate to the measured hardness starts at indentation depths of the order of 0.07- 0.2 times the film thickness. Dependence of nanohardness and microhardness values on electrodeposition process conditions, substrate and film microstructure, total film thickness, layer thickness and Ni/Cu layer thickness ratio for different composite systems ratio was investigated. Composite hardness model of Chicot-Lesage (C-L) was chosen and applied to experimental data in order to determine absolute film hardness., Ovo istraživanje je izvršeno u cilju analize i upoređivanja odziva različitih kompozitnih sistema koji pripadaju istom tipu sistema nazvanom 'mek film na tvrdom supstratu', pri merenju tvrdoće. Formirani su kompozitni sistemi elektrodepozicijom jedno- i višeslojnih Ni i Cu tankih filmova na (100) i (111)- orijentisanim monokristalnim Si pločicama i 100-µm debelom elektrodeponovanom Ni filmu kao supstratima. Ponašanje ovih kompozitnih struktura pri utiskivanju je okarakterisano merenjem nanotvrdoće po Berkoviču i mikrotvrdoće po Vikersu. Izmerena vrednost mikrotvrdoće se naziva 'kompozitnom tvrdoćom' jer prilikom testiranja utiskivanjem dolazi i do plastične deformacije supstrata. Doprinos deformacije supstrata izmerenoj tvrdoći počinje na dubinama utiskivanja koje su reda 0.07-0.2 puta manje od debljine filma. Istraživana je zavisnost vrednosti nanotvrdoće i mikrotvrdoće od procesnih parametera elektrodepozicije, mikrostrukture supstrata i filmova, ukupne debljine filma, debljine pojedinačnog sloja u filmu i odnosa debljina Ni/Cu pojedinačnih slojeva u filmu za različite kompozitne sisteme. Radi određivanja apsolutne tvrdoće filma u sistemu, odabran je i na eksperimentalne rezultate primenjen model kompozitne tvrdoće Šiko-Lezaž (C-L).",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Indentation behaviour of 'soft film on hard substrate' composite system type, Ponašanje kompozitnih sistema tipa 'mek film na tvrdom supstratu' na testu utiskivanja",
pages = "277-269",
number = "3",
volume = "56",
doi = "10.5937/ZasMat1503269L"
}

Lamovec, J., Jović, V., Mladenović, I., Stojanović, D., Kojović, A.,& Radojević, V.. (2015). Indentation behaviour of 'soft film on hard substrate' composite system type. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 56(3), 269-277.
https://doi.org/10.5937/ZasMat1503269L

Lamovec J, Jović V, Mladenović I, Stojanović D, Kojović A, Radojević V. Indentation behaviour of 'soft film on hard substrate' composite system type. in Zaštita materijala. 2015;56(3):269-277.
doi:10.5937/ZasMat1503269L .

Lamovec, Jelena, Jović, Vesna, Mladenović, Ivana, Stojanović, Dušica, Kojović, Aleksandar, Radojević, Vesna, "Indentation behaviour of 'soft film on hard substrate' composite system type" in Zaštita materijala, 56, no. 3 (2015):269-277,
https://doi.org/10.5937/ZasMat1503269L . .

TY  - JOUR
AU  - Lamovec, Jelena
AU  - Jović, Vesna B.
AU  - Mladenović, Ivana
AU  - Popović, Bogdan
AU  - Radojević, Vesna
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2928
AB  - Multilayer Ni/Cu thin films were produced by dual-bath electrodeposition technique (DBT) on polycrystalline cold-rolled Cu substrate. Different Ni/Cu multilayer structures were realized by changing of process parameters such as total film thickness, sublayer thickness and Ni/Cu sublayer thickness ratio. The mechanical properties of Vickers microhardness and interfacial adhesion in the films were investigated. Decreasing of sublayer thickness down to 300 nm and increasing of Ni:Cu sublayer thickness ratio to 1:4, lead to higher values of Vickers microhardness compared to monolayer metal films. Thin films with sublayer thicknesses from 75 nm to 5 μm show strong interfacial adhesion. A weak adhesion and sublayer exfoliation for the films with sublayer thickness greater than 5μm were found. Three-dimensional Ni microstructures can be fabricated using multilayer Ni/Cu film by selective etching of Cu layers in an acidic thiourea solution ('surface micromachining' technique).
AB  - Tehnikom elektrohemijske depozicije iz dva kupatila (dual-bath technique, DBT), dobijeni su višeslojni filmovi Ni i Cu, naizmeničnim deponovanjem na polikristalni, hladno-valjani bakarni supstrat. Različite strukture Ni/Cu višeslojnih filmova su ostvarene promenom procesnih parametara kao što su ukupna debljina filma, debljina pojedinačnog sloja u filmu i odnos debljina pojedinačnih slojeva Ni i Cu u filmu. Ispitana su mehanička svojstva mikrotvrdoće po Vikersu i adhezije filma na supstratu i kontaktnim površinama slojeva u filmu. Smanjenjem debljine pojedinačnog sloja do 300 nm i povećanjem odnosa debljina slojeva Ni:Cu na 1:4, došlo se do višestrukog povećanja vrednosti Vikersove mikrotvrdoće u odnosu na jednoslojne metalne filmove. Tanki slojevi Ni i Cu sa debljinom od 75 nm do 5 μm pokazuju dobru međuslojnu adheziju. Filmovi sa debljinom slojeva većom od 5 μm, nemaju dobru međuslojnu adheziju i uočava se delaminacija (razdvajanje) slojeva. Sve strukture višeslojnih filmova Ni i Cu se mogu primeniti za izradu trodimenzionalnih MEMS struktura od Ni, metodom selektivnog nagrizanja slojeva Cu u kiselom rastvoru tiouree tehnikom 'površinskog mikromašinstva'.
PB  - Savez inženjera i tehničara Srbije, Beograd
T2  - Tehnika
T1  - Analysis of the influence of structure on mechanical properties of multilayer Ni/Cu thin films for use in microelectronic technologies
T1  - Analiza uticaja strukture na mehanička svojstva višeslojnih tankih filmova Ni/Cu za primenu u mikroelektronskim tehnologijama
EP  - 920
IS  - 6
SP  - 915
VL  - 70
DO  - 10.5937/tehnika1506915L
ER  - 

@article{
author = "Lamovec, Jelena and Jović, Vesna B. and Mladenović, Ivana and Popović, Bogdan and Radojević, Vesna",
year = "2015",
abstract = "Multilayer Ni/Cu thin films were produced by dual-bath electrodeposition technique (DBT) on polycrystalline cold-rolled Cu substrate. Different Ni/Cu multilayer structures were realized by changing of process parameters such as total film thickness, sublayer thickness and Ni/Cu sublayer thickness ratio. The mechanical properties of Vickers microhardness and interfacial adhesion in the films were investigated. Decreasing of sublayer thickness down to 300 nm and increasing of Ni:Cu sublayer thickness ratio to 1:4, lead to higher values of Vickers microhardness compared to monolayer metal films. Thin films with sublayer thicknesses from 75 nm to 5 μm show strong interfacial adhesion. A weak adhesion and sublayer exfoliation for the films with sublayer thickness greater than 5μm were found. Three-dimensional Ni microstructures can be fabricated using multilayer Ni/Cu film by selective etching of Cu layers in an acidic thiourea solution ('surface micromachining' technique)., Tehnikom elektrohemijske depozicije iz dva kupatila (dual-bath technique, DBT), dobijeni su višeslojni filmovi Ni i Cu, naizmeničnim deponovanjem na polikristalni, hladno-valjani bakarni supstrat. Različite strukture Ni/Cu višeslojnih filmova su ostvarene promenom procesnih parametara kao što su ukupna debljina filma, debljina pojedinačnog sloja u filmu i odnos debljina pojedinačnih slojeva Ni i Cu u filmu. Ispitana su mehanička svojstva mikrotvrdoće po Vikersu i adhezije filma na supstratu i kontaktnim površinama slojeva u filmu. Smanjenjem debljine pojedinačnog sloja do 300 nm i povećanjem odnosa debljina slojeva Ni:Cu na 1:4, došlo se do višestrukog povećanja vrednosti Vikersove mikrotvrdoće u odnosu na jednoslojne metalne filmove. Tanki slojevi Ni i Cu sa debljinom od 75 nm do 5 μm pokazuju dobru međuslojnu adheziju. Filmovi sa debljinom slojeva većom od 5 μm, nemaju dobru međuslojnu adheziju i uočava se delaminacija (razdvajanje) slojeva. Sve strukture višeslojnih filmova Ni i Cu se mogu primeniti za izradu trodimenzionalnih MEMS struktura od Ni, metodom selektivnog nagrizanja slojeva Cu u kiselom rastvoru tiouree tehnikom 'površinskog mikromašinstva'.",
publisher = "Savez inženjera i tehničara Srbije, Beograd",
journal = "Tehnika",
title = "Analysis of the influence of structure on mechanical properties of multilayer Ni/Cu thin films for use in microelectronic technologies, Analiza uticaja strukture na mehanička svojstva višeslojnih tankih filmova Ni/Cu za primenu u mikroelektronskim tehnologijama",
pages = "920-915",
number = "6",
volume = "70",
doi = "10.5937/tehnika1506915L"
}

Lamovec, J., Jović, V. B., Mladenović, I., Popović, B.,& Radojević, V.. (2015). Analysis of the influence of structure on mechanical properties of multilayer Ni/Cu thin films for use in microelectronic technologies. in Tehnika
Savez inženjera i tehničara Srbije, Beograd., 70(6), 915-920.
https://doi.org/10.5937/tehnika1506915L

Lamovec J, Jović VB, Mladenović I, Popović B, Radojević V. Analysis of the influence of structure on mechanical properties of multilayer Ni/Cu thin films for use in microelectronic technologies. in Tehnika. 2015;70(6):915-920.
doi:10.5937/tehnika1506915L .

Lamovec, Jelena, Jović, Vesna B., Mladenović, Ivana, Popović, Bogdan, Radojević, Vesna, "Analysis of the influence of structure on mechanical properties of multilayer Ni/Cu thin films for use in microelectronic technologies" in Tehnika, 70, no. 6 (2015):915-920,
https://doi.org/10.5937/tehnika1506915L . .

TY  - JOUR
AU  - Tomković, Tanja
AU  - Radovanović, Filip
AU  - Nastasović, Aleksandra
AU  - Vasiljević-Radović, Dana
AU  - Marković, Jelena P.
AU  - Grgur, Branimir
AU  - Onjia, Antonije
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3048
AB  - Asymmetric polyethersulfone membranes with submicron particles comprising crosslinked poly(glycidyl methacrylate-co-2-acrylamido-2-methylpropane sulfonic acid) were prepared by a combination of a traditional liquid phase inversion process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. Scanning electron microscope images of the membrane cross-section revealed a hybrid structure with an interconnected network of submicron particles embedded within the porous polyethersulfone support. Permeation of toluidine blue solutions through non-functionalized membranes showed a dramatic effect of 2-acrylamido-2-methylpropane sulfonic acid concentration in the casting solution on the dynamic adsorption performance. The epoxide groups present in glycidyl methacrylate copolymer were transformed into amine functionalities by ring opening under alkaline conditions. Permeation of dilute Cu2+ solutions through functionalized membranes demonstrated that the plate height for some of these membranes was an order of magnitude smaller than for commercial particle-filled membranes used in solid phase extraction.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - European Polymer Journal
T1  - Solid phase extraction membranes with submicron multifunctional adsorbent particles
EP  - 100
SP  - 90
VL  - 63
DO  - 10.1016/j.eurpolymj.2014.12.015
ER  - 

@article{
author = "Tomković, Tanja and Radovanović, Filip and Nastasović, Aleksandra and Vasiljević-Radović, Dana and Marković, Jelena P. and Grgur, Branimir and Onjia, Antonije",
year = "2015",
abstract = "Asymmetric polyethersulfone membranes with submicron particles comprising crosslinked poly(glycidyl methacrylate-co-2-acrylamido-2-methylpropane sulfonic acid) were prepared by a combination of a traditional liquid phase inversion process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. Scanning electron microscope images of the membrane cross-section revealed a hybrid structure with an interconnected network of submicron particles embedded within the porous polyethersulfone support. Permeation of toluidine blue solutions through non-functionalized membranes showed a dramatic effect of 2-acrylamido-2-methylpropane sulfonic acid concentration in the casting solution on the dynamic adsorption performance. The epoxide groups present in glycidyl methacrylate copolymer were transformed into amine functionalities by ring opening under alkaline conditions. Permeation of dilute Cu2+ solutions through functionalized membranes demonstrated that the plate height for some of these membranes was an order of magnitude smaller than for commercial particle-filled membranes used in solid phase extraction.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "European Polymer Journal",
title = "Solid phase extraction membranes with submicron multifunctional adsorbent particles",
pages = "100-90",
volume = "63",
doi = "10.1016/j.eurpolymj.2014.12.015"
}

Tomković, T., Radovanović, F., Nastasović, A., Vasiljević-Radović, D., Marković, J. P., Grgur, B.,& Onjia, A.. (2015). Solid phase extraction membranes with submicron multifunctional adsorbent particles. in European Polymer Journal
Pergamon-Elsevier Science Ltd, Oxford., 63, 90-100.
https://doi.org/10.1016/j.eurpolymj.2014.12.015

Tomković T, Radovanović F, Nastasović A, Vasiljević-Radović D, Marković JP, Grgur B, Onjia A. Solid phase extraction membranes with submicron multifunctional adsorbent particles. in European Polymer Journal. 2015;63:90-100.
doi:10.1016/j.eurpolymj.2014.12.015 .

Tomković, Tanja, Radovanović, Filip, Nastasović, Aleksandra, Vasiljević-Radović, Dana, Marković, Jelena P., Grgur, Branimir, Onjia, Antonije, "Solid phase extraction membranes with submicron multifunctional adsorbent particles" in European Polymer Journal, 63 (2015):90-100,
https://doi.org/10.1016/j.eurpolymj.2014.12.015 . .

TY  - JOUR
AU  - Stajčić, Aleksandar
AU  - Nastasović, Aleksandra
AU  - Stajić-Trošić, Jasna
AU  - Marković, Jelena P.
AU  - Onjia, Antonije
AU  - Radovanović, Filip
PY  - 2015
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2917
AB  - Polyethersulfone membranes with integrated negatively-charged hydrogel of crosslinked poly (acrylamido-2-methylpropane sulfonic acid) were prepared by a combination of a liquid phase inversion process with photopolymerization and crosslinking of functional monomers included in the casting solution. A designed experiment was conducted to select the optimal composition for preparing membranes with a sufficient degree of swelling and ion exchange capacity. Scanning electron microscopy images revealed an ultrafine hybrid structure with an interconnected network of submicron particles embedded within the microporous polyethersulfone support. An intramembrane diffusion model was used to describe kinetics of heavy metal sorption by these hydrogels and the calculated apparent diffusion coefficients were 2-3 times larger than in commercial ion-exchange resins. Equilibrium sorption of heavy metals was described using a semi-empirical Langmuir model.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of Environmental Chemical Engineering
T1  - Novel membrane-supported hydrogel for removal of heavy metals
EP  - 461
IS  - 1
SP  - 453
VL  - 3
DO  - 10.1016/j.jece.2015.01.005
ER  - 

@article{
author = "Stajčić, Aleksandar and Nastasović, Aleksandra and Stajić-Trošić, Jasna and Marković, Jelena P. and Onjia, Antonije and Radovanović, Filip",
year = "2015",
abstract = "Polyethersulfone membranes with integrated negatively-charged hydrogel of crosslinked poly (acrylamido-2-methylpropane sulfonic acid) were prepared by a combination of a liquid phase inversion process with photopolymerization and crosslinking of functional monomers included in the casting solution. A designed experiment was conducted to select the optimal composition for preparing membranes with a sufficient degree of swelling and ion exchange capacity. Scanning electron microscopy images revealed an ultrafine hybrid structure with an interconnected network of submicron particles embedded within the microporous polyethersulfone support. An intramembrane diffusion model was used to describe kinetics of heavy metal sorption by these hydrogels and the calculated apparent diffusion coefficients were 2-3 times larger than in commercial ion-exchange resins. Equilibrium sorption of heavy metals was described using a semi-empirical Langmuir model.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of Environmental Chemical Engineering",
title = "Novel membrane-supported hydrogel for removal of heavy metals",
pages = "461-453",
number = "1",
volume = "3",
doi = "10.1016/j.jece.2015.01.005"
}

Stajčić, A., Nastasović, A., Stajić-Trošić, J., Marković, J. P., Onjia, A.,& Radovanović, F.. (2015). Novel membrane-supported hydrogel for removal of heavy metals. in Journal of Environmental Chemical Engineering
Elsevier Sci Ltd, Oxford., 3(1), 453-461.
https://doi.org/10.1016/j.jece.2015.01.005

Stajčić A, Nastasović A, Stajić-Trošić J, Marković JP, Onjia A, Radovanović F. Novel membrane-supported hydrogel for removal of heavy metals. in Journal of Environmental Chemical Engineering. 2015;3(1):453-461.
doi:10.1016/j.jece.2015.01.005 .

Stajčić, Aleksandar, Nastasović, Aleksandra, Stajić-Trošić, Jasna, Marković, Jelena P., Onjia, Antonije, Radovanović, Filip, "Novel membrane-supported hydrogel for removal of heavy metals" in Journal of Environmental Chemical Engineering, 3, no. 1 (2015):453-461,
https://doi.org/10.1016/j.jece.2015.01.005 . .

TY  - JOUR
AU  - Radovanović, Filip
AU  - Nastasović, Aleksandra
AU  - Tomković, Tanja
AU  - Vasiljević-Radović, Dana
AU  - Nešić, Aleksandra
AU  - Veličković, Sava
AU  - Onjia, Antonije
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2836
AB  - Asymmetric polyethersulfone membranes with submicron particles comprising crosslinked glycidyl methacrylate copolymer were prepared by a combination of a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. As the concentration of polymerizable monomers increased the original macrovoid structure was replaced by a hybrid morphology with microglobules typical of macroporous methacrylate adsorbers embedded within microporous structure with no significant effects on water permeability. The epoxide groups present in glycidyl methacrylate copolymer were transformed into amine functionalities by ring opening under alkaline conditions. Permeation of Orange G solution at low transmembrane pressures was used to demonstrate suitability of these novel membranes for membrane adsorption.
PB  - Elsevier Science Bv, Amsterdam
T2  - Reactive & Functional Polymers
T1  - Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate
EP  - 10
SP  - 1
VL  - 77
DO  - 10.1016/j.reactfunctpolym.2014.01.007
ER  - 

@article{
author = "Radovanović, Filip and Nastasović, Aleksandra and Tomković, Tanja and Vasiljević-Radović, Dana and Nešić, Aleksandra and Veličković, Sava and Onjia, Antonije",
year = "2014",
abstract = "Asymmetric polyethersulfone membranes with submicron particles comprising crosslinked glycidyl methacrylate copolymer were prepared by a combination of a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. As the concentration of polymerizable monomers increased the original macrovoid structure was replaced by a hybrid morphology with microglobules typical of macroporous methacrylate adsorbers embedded within microporous structure with no significant effects on water permeability. The epoxide groups present in glycidyl methacrylate copolymer were transformed into amine functionalities by ring opening under alkaline conditions. Permeation of Orange G solution at low transmembrane pressures was used to demonstrate suitability of these novel membranes for membrane adsorption.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "Reactive & Functional Polymers",
title = "Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate",
pages = "10-1",
volume = "77",
doi = "10.1016/j.reactfunctpolym.2014.01.007"
}

Radovanović, F., Nastasović, A., Tomković, T., Vasiljević-Radović, D., Nešić, A., Veličković, S.,& Onjia, A.. (2014). Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate. in Reactive & Functional Polymers
Elsevier Science Bv, Amsterdam., 77, 1-10.
https://doi.org/10.1016/j.reactfunctpolym.2014.01.007

Radovanović F, Nastasović A, Tomković T, Vasiljević-Radović D, Nešić A, Veličković S, Onjia A. Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate. in Reactive & Functional Polymers. 2014;77:1-10.
doi:10.1016/j.reactfunctpolym.2014.01.007 .

Radovanović, Filip, Nastasović, Aleksandra, Tomković, Tanja, Vasiljević-Radović, Dana, Nešić, Aleksandra, Veličković, Sava, Onjia, Antonije, "Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate" in Reactive & Functional Polymers, 77 (2014):1-10,
https://doi.org/10.1016/j.reactfunctpolym.2014.01.007 . .

TY  - DATA
AU  - Radovanović, Filip
AU  - Nastasović, Aleksandra
AU  - Tomković, Tanja
AU  - Vasiljević-Radović, Dana
AU  - Nešić, Aleksandra
AU  - Veličković, Sava
AU  - Onjia, Antonije
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2577
AB  - Asymmetric polyethersulfone membranes with submicron particles comprising crosslinked glycidyl methacrylate copolymer were prepared by a combination of a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. As the concentration of polymerizable monomers increased the original macrovoid structure was replaced by a hybrid morphology with microglobules typical of macroporous methacrylate adsorbers embedded within microporous structure with no significant effects on water permeability. The epoxide groups present in glycidyl methacrylate copolymer were transformed into amine functionalities by ring opening under alkaline conditions. Permeation of Orange G solution at low transmembrane pressures was used to demonstrate suitability of these novel membranes for membrane adsorption.
PB  - Elsevier, Amsterdam
T2  - Reactive & Functional Polymers
T1  - Supplementary materials for the article: Radovanović, F., Nastasović, A., Tomković, T., Vasiljević-Radović, D., Nešić, A., Veličković, S., Onjia, A., 2014. Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate. Reactive and Functional Polymers 77, 1–10. https://doi.org/10.1016/j.reactfunctpolym.2014.01.007
UR  - https://hdl.handle.net/21.15107/rcub_dais_4728
ER  - 

@misc{
author = "Radovanović, Filip and Nastasović, Aleksandra and Tomković, Tanja and Vasiljević-Radović, Dana and Nešić, Aleksandra and Veličković, Sava and Onjia, Antonije",
year = "2014",
abstract = "Asymmetric polyethersulfone membranes with submicron particles comprising crosslinked glycidyl methacrylate copolymer were prepared by a combination of a traditional immersion precipitation process for making membranes with photopolymerization and crosslinking of functional monomers included in the casting solution. As the concentration of polymerizable monomers increased the original macrovoid structure was replaced by a hybrid morphology with microglobules typical of macroporous methacrylate adsorbers embedded within microporous structure with no significant effects on water permeability. The epoxide groups present in glycidyl methacrylate copolymer were transformed into amine functionalities by ring opening under alkaline conditions. Permeation of Orange G solution at low transmembrane pressures was used to demonstrate suitability of these novel membranes for membrane adsorption.",
publisher = "Elsevier, Amsterdam",
journal = "Reactive & Functional Polymers",
title = "Supplementary materials for the article: Radovanović, F., Nastasović, A., Tomković, T., Vasiljević-Radović, D., Nešić, A., Veličković, S., Onjia, A., 2014. Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate. Reactive and Functional Polymers 77, 1–10. https://doi.org/10.1016/j.reactfunctpolym.2014.01.007",
url = "https://hdl.handle.net/21.15107/rcub_dais_4728"
}

Radovanović, F., Nastasović, A., Tomković, T., Vasiljević-Radović, D., Nešić, A., Veličković, S.,& Onjia, A.. (2014). Supplementary materials for the article: Radovanović, F., Nastasović, A., Tomković, T., Vasiljević-Radović, D., Nešić, A., Veličković, S., Onjia, A., 2014. Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate. Reactive and Functional Polymers 77, 1–10. https://doi.org/10.1016/j.reactfunctpolym.2014.01.007. in Reactive & Functional Polymers
Elsevier, Amsterdam..
https://hdl.handle.net/21.15107/rcub_dais_4728

Radovanović F, Nastasović A, Tomković T, Vasiljević-Radović D, Nešić A, Veličković S, Onjia A. Supplementary materials for the article: Radovanović, F., Nastasović, A., Tomković, T., Vasiljević-Radović, D., Nešić, A., Veličković, S., Onjia, A., 2014. Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate. Reactive and Functional Polymers 77, 1–10. https://doi.org/10.1016/j.reactfunctpolym.2014.01.007. in Reactive & Functional Polymers. 2014;.
https://hdl.handle.net/21.15107/rcub_dais_4728 .

Radovanović, Filip, Nastasović, Aleksandra, Tomković, Tanja, Vasiljević-Radović, Dana, Nešić, Aleksandra, Veličković, Sava, Onjia, Antonije, "Supplementary materials for the article: Radovanović, F., Nastasović, A., Tomković, T., Vasiljević-Radović, D., Nešić, A., Veličković, S., Onjia, A., 2014. Novel membrane adsorbers incorporating functionalized polyglycidyl methacrylate. Reactive and Functional Polymers 77, 1–10. https://doi.org/10.1016/j.reactfunctpolym.2014.01.007" in Reactive & Functional Polymers (2014),
https://hdl.handle.net/21.15107/rcub_dais_4728 .

TY  - CONF
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Mladenović, Ivana
AU  - Sarajlić, Milija
AU  - Radojević, Vesna
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2716
AB  - Nickel and copper thin films were alternately electrodeposited from sulphamate and sulphate-based electrolytes respectively, on different substrates: polycrystalline cold rolled copper, single crystal (111)-oriented Si and 100 mu m-thick electrodeposited nickel films. Electrodeposition of layers at a very narrow spacing contribute to high strength of the composites. The influence of the substrate and plating conditions on the mechanical properties of these composite structures were investigated by Vickers microhardness testing for different loads. Composite hardness models were applied to the experimental data in order to obtaine absolute film hardness.
PB  - IEEE, New York
C3  - 2014 29th International Conference on Microelectronics Proceedings - MIEL 2014
T1  - Assessment of the Composite Behavior of Different Ni/Cu Multilayer Composite Systems
EP  - 186
SP  - 183
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2716
ER  - 

@conference{
author = "Lamovec, Jelena and Jović, Vesna and Mladenović, Ivana and Sarajlić, Milija and Radojević, Vesna",
year = "2014",
abstract = "Nickel and copper thin films were alternately electrodeposited from sulphamate and sulphate-based electrolytes respectively, on different substrates: polycrystalline cold rolled copper, single crystal (111)-oriented Si and 100 mu m-thick electrodeposited nickel films. Electrodeposition of layers at a very narrow spacing contribute to high strength of the composites. The influence of the substrate and plating conditions on the mechanical properties of these composite structures were investigated by Vickers microhardness testing for different loads. Composite hardness models were applied to the experimental data in order to obtaine absolute film hardness.",
publisher = "IEEE, New York",
journal = "2014 29th International Conference on Microelectronics Proceedings - MIEL 2014",
title = "Assessment of the Composite Behavior of Different Ni/Cu Multilayer Composite Systems",
pages = "186-183",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2716"
}

Lamovec, J., Jović, V., Mladenović, I., Sarajlić, M.,& Radojević, V.. (2014). Assessment of the Composite Behavior of Different Ni/Cu Multilayer Composite Systems. in 2014 29th International Conference on Microelectronics Proceedings - MIEL 2014
IEEE, New York., 183-186.
https://hdl.handle.net/21.15107/rcub_technorep_2716

Lamovec J, Jović V, Mladenović I, Sarajlić M, Radojević V. Assessment of the Composite Behavior of Different Ni/Cu Multilayer Composite Systems. in 2014 29th International Conference on Microelectronics Proceedings - MIEL 2014. 2014;:183-186.
https://hdl.handle.net/21.15107/rcub_technorep_2716 .

Lamovec, Jelena, Jović, Vesna, Mladenović, Ivana, Sarajlić, Milija, Radojević, Vesna, "Assessment of the Composite Behavior of Different Ni/Cu Multilayer Composite Systems" in 2014 29th International Conference on Microelectronics Proceedings - MIEL 2014 (2014):183-186,
https://hdl.handle.net/21.15107/rcub_technorep_2716 .

TY  - CONF
AU  - Lamovec, Jelena
AU  - Jović, Vesna
AU  - Mladenović, Ivana
AU  - Popović, Bogdan
AU  - Radojević, Vesna
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2563
AB  - Thin metallic multilayer films consisting of nanometer layer thickness deposited on different substrates have shown promising mechanical, electrical and magnetical properties, especially for applications in fabrication of microelectromechanical (MEMS) structures and wear-resistant applications. Electrodeposition of Ni/Cu multilayer films on substrates of (111)-oriented single crystal Si and 100μm-thick electrodeposited Ni film was carried out using dual-bath technique (DBT). The current density values was maintained at 10 mA cm-2 and projected thickness of deposit was 5μm. Vickers microhardness of Ni/Cu thin multilayer films was investigated. The substrate starts to contribute the measured hardness at penetration depths of the order of 0.07 - 0.20 times the film thickness. The measured “composite hardness” is a complex value that depends on the microstructure and the hardness of the film and the substrate and their relative differences. Ni/Cu films on (111)-oriented Si wafer and 100μm-thick electrodeposited Ni film as the substrates can be thought as “soft film on hard substrate” composite systems. Chicot-Lesage model based on the model for reinforced composites can be applied to experimental data for all specimen and the film hardness was calculated for each indentation diagonal. The values obtained for the film hardness HF are not constant for all types of these composite systems, but influenced by the applied load.
PB  - Belgrade : Military Technical Institute
C3  - Proceedings - 6th International scientific conference on defensive technologies-proceedings, Belgrad
T1  - Effect of substrate type on microhardness of multilayer thin film composite system
EP  - 683
SP  - 680
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2563
ER  - 

@conference{
author = "Lamovec, Jelena and Jović, Vesna and Mladenović, Ivana and Popović, Bogdan and Radojević, Vesna",
year = "2014",
abstract = "Thin metallic multilayer films consisting of nanometer layer thickness deposited on different substrates have shown promising mechanical, electrical and magnetical properties, especially for applications in fabrication of microelectromechanical (MEMS) structures and wear-resistant applications. Electrodeposition of Ni/Cu multilayer films on substrates of (111)-oriented single crystal Si and 100μm-thick electrodeposited Ni film was carried out using dual-bath technique (DBT). The current density values was maintained at 10 mA cm-2 and projected thickness of deposit was 5μm. Vickers microhardness of Ni/Cu thin multilayer films was investigated. The substrate starts to contribute the measured hardness at penetration depths of the order of 0.07 - 0.20 times the film thickness. The measured “composite hardness” is a complex value that depends on the microstructure and the hardness of the film and the substrate and their relative differences. Ni/Cu films on (111)-oriented Si wafer and 100μm-thick electrodeposited Ni film as the substrates can be thought as “soft film on hard substrate” composite systems. Chicot-Lesage model based on the model for reinforced composites can be applied to experimental data for all specimen and the film hardness was calculated for each indentation diagonal. The values obtained for the film hardness HF are not constant for all types of these composite systems, but influenced by the applied load.",
publisher = "Belgrade : Military Technical Institute",
journal = "Proceedings - 6th International scientific conference on defensive technologies-proceedings, Belgrad",
title = "Effect of substrate type on microhardness of multilayer thin film composite system",
pages = "683-680",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2563"
}

Lamovec, J., Jović, V., Mladenović, I., Popović, B.,& Radojević, V.. (2014). Effect of substrate type on microhardness of multilayer thin film composite system. in Proceedings - 6th International scientific conference on defensive technologies-proceedings, Belgrad
Belgrade : Military Technical Institute., 680-683.
https://hdl.handle.net/21.15107/rcub_technorep_2563

Lamovec J, Jović V, Mladenović I, Popović B, Radojević V. Effect of substrate type on microhardness of multilayer thin film composite system. in Proceedings - 6th International scientific conference on defensive technologies-proceedings, Belgrad. 2014;:680-683.
https://hdl.handle.net/21.15107/rcub_technorep_2563 .

Lamovec, Jelena, Jović, Vesna, Mladenović, Ivana, Popović, Bogdan, Radojević, Vesna, "Effect of substrate type on microhardness of multilayer thin film composite system" in Proceedings - 6th International scientific conference on defensive technologies-proceedings, Belgrad (2014):680-683,
https://hdl.handle.net/21.15107/rcub_technorep_2563 .

TY  - CONF
AU  - Tomković, Tanja
AU  - Radovanović, Filip
AU  - Nastasović, Aleksandra
AU  - Marković, Jelena
AU  - Ekmeščić, Bojana
AU  - Vidojković, Sonja
AU  - Onjia, Antonije
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2582
AB  - Novel polyethersulfone membranes with integrated submicron adsorbent particles were prepared by combining photoirradiation with liquid phase inversion. These particles consist of cross-linked poly(glycidyl methacrylate-co-acrylamido-2-methylpropane sulfonic acid), pGMA-AMPS. After membrane preparation, the epoxide groups were reacted with diethylene triamine to incorporate amine functionalities. Membranes were characterized using FTIR-ATR, SEM and dynamic adsorption of copper from a dilute solution. Effects of monomer concentrations on the properties and separation performance of membrane adsorbers are presented.
PB  - Belgrade, Serbia : Society of Physical Chemists of Serbia
C3  - Proceedings of the 12th International Conference on Fundamental and Applied Aspects of Physical Chem
T1  - Polyethersulfone membranes with integrated adsorbent particles for heavy metals capture
EP  - 790
SP  - 787
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7531
ER  - 

@conference{
author = "Tomković, Tanja and Radovanović, Filip and Nastasović, Aleksandra and Marković, Jelena and Ekmeščić, Bojana and Vidojković, Sonja and Onjia, Antonije",
year = "2014",
abstract = "Novel polyethersulfone membranes with integrated submicron adsorbent particles were prepared by combining photoirradiation with liquid phase inversion. These particles consist of cross-linked poly(glycidyl methacrylate-co-acrylamido-2-methylpropane sulfonic acid), pGMA-AMPS. After membrane preparation, the epoxide groups were reacted with diethylene triamine to incorporate amine functionalities. Membranes were characterized using FTIR-ATR, SEM and dynamic adsorption of copper from a dilute solution. Effects of monomer concentrations on the properties and separation performance of membrane adsorbers are presented.",
publisher = "Belgrade, Serbia : Society of Physical Chemists of Serbia",
journal = "Proceedings of the 12th International Conference on Fundamental and Applied Aspects of Physical Chem",
title = "Polyethersulfone membranes with integrated adsorbent particles for heavy metals capture",
pages = "790-787",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7531"
}

Tomković, T., Radovanović, F., Nastasović, A., Marković, J., Ekmeščić, B., Vidojković, S.,& Onjia, A.. (2014). Polyethersulfone membranes with integrated adsorbent particles for heavy metals capture. in Proceedings of the 12th International Conference on Fundamental and Applied Aspects of Physical Chem
Belgrade, Serbia : Society of Physical Chemists of Serbia., 787-790.
https://hdl.handle.net/21.15107/rcub_vinar_7531

Tomković T, Radovanović F, Nastasović A, Marković J, Ekmeščić B, Vidojković S, Onjia A. Polyethersulfone membranes with integrated adsorbent particles for heavy metals capture. in Proceedings of the 12th International Conference on Fundamental and Applied Aspects of Physical Chem. 2014;:787-790.
https://hdl.handle.net/21.15107/rcub_vinar_7531 .

Tomković, Tanja, Radovanović, Filip, Nastasović, Aleksandra, Marković, Jelena, Ekmeščić, Bojana, Vidojković, Sonja, Onjia, Antonije, "Polyethersulfone membranes with integrated adsorbent particles for heavy metals capture" in Proceedings of the 12th International Conference on Fundamental and Applied Aspects of Physical Chem (2014):787-790,
https://hdl.handle.net/21.15107/rcub_vinar_7531 .

TY  - CONF
AU  - Tomković, Tanja
AU  - Radovanović, Filip
AU  - Nastasović, Aleksandra
AU  - Vasiljević-Radović, Dana
AU  - Onjia, Antonije
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2284
AB  - Membrane adsorption has started to replace fixed bed chromatography for separation and purification of small quantities of valuable species in biotechnology and related areas. Membrane functionalization is usually required to introduce affinity groups for these applications. In this work novel membranes adsorbers were prepared by combining liquid phase inversion with photopolymerization of the solution comprising polyethersulfone, glycidyl methacrylate, sodium salt of 2-acrylamido-2-methylpropane sulfonic acid and a cross-linker. Membranes were characterized using SEM, AFM, FTIR, titration and water permeability measurements. Dynamic adsorption of Toluidine blue as a model dye was used to demonstrate suitability of these novel membranes for membrane adsorption.
PB  - Belgrade: Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Eng
T1  - Novel membrane adsorbers incorporating cross-linked poly(glycidyl methacrylate-co-2-acrylamido-2-methylpropane sulfonic acid)
SP  - 38
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2284
ER  - 

@conference{
author = "Tomković, Tanja and Radovanović, Filip and Nastasović, Aleksandra and Vasiljević-Radović, Dana and Onjia, Antonije",
year = "2013",
abstract = "Membrane adsorption has started to replace fixed bed chromatography for separation and purification of small quantities of valuable species in biotechnology and related areas. Membrane functionalization is usually required to introduce affinity groups for these applications. In this work novel membranes adsorbers were prepared by combining liquid phase inversion with photopolymerization of the solution comprising polyethersulfone, glycidyl methacrylate, sodium salt of 2-acrylamido-2-methylpropane sulfonic acid and a cross-linker. Membranes were characterized using SEM, AFM, FTIR, titration and water permeability measurements. Dynamic adsorption of Toluidine blue as a model dye was used to demonstrate suitability of these novel membranes for membrane adsorption.",
publisher = "Belgrade: Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Eng",
title = "Novel membrane adsorbers incorporating cross-linked poly(glycidyl methacrylate-co-2-acrylamido-2-methylpropane sulfonic acid)",
pages = "38",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2284"
}

Tomković, T., Radovanović, F., Nastasović, A., Vasiljević-Radović, D.,& Onjia, A.. (2013). Novel membrane adsorbers incorporating cross-linked poly(glycidyl methacrylate-co-2-acrylamido-2-methylpropane sulfonic acid). in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Eng
Belgrade: Institute of Technical Sciences of SASA., 38.
https://hdl.handle.net/21.15107/rcub_technorep_2284

Tomković T, Radovanović F, Nastasović A, Vasiljević-Radović D, Onjia A. Novel membrane adsorbers incorporating cross-linked poly(glycidyl methacrylate-co-2-acrylamido-2-methylpropane sulfonic acid). in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Eng. 2013;:38.
https://hdl.handle.net/21.15107/rcub_technorep_2284 .

Tomković, Tanja, Radovanović, Filip, Nastasović, Aleksandra, Vasiljević-Radović, Dana, Onjia, Antonije, "Novel membrane adsorbers incorporating cross-linked poly(glycidyl methacrylate-co-2-acrylamido-2-methylpropane sulfonic acid)" in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Eng (2013):38,
https://hdl.handle.net/21.15107/rcub_technorep_2284 .