TY  - JOUR
AU  - Kaluđerović, Branka V.
AU  - Jovanovic, Vladislava M.
AU  - Stevanović, Sanja I.
AU  - Bogdanov, Žarko
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5837
AB  - An ultrasonic irradiation was applied for the impregnation by chemical agents in the chemical activation process of new type of active carbon precursor. Plane tree seed, due to the unique fibrous structure and low cost is a promising eco-friendly raw material for the preparation of activated carbon materials. Ultrasonic irradiation was used for the impregnation step allowing the chemical activation by different agents: potassium or sodium hydroxide, hydrogen peroxide and pyrogallol. The porous structures were examined by nitrogen adsorption/desorption isotherms at 77 K and electrochemically by cyclic voltammetry. The textures of these materials were observed by scanning electron microscopy. The application of ultrasonic irradiation in the impregnation step increased surface area of the final material more than two times in comparison to the material which impregnation in the activation process was by conventional stirring. Ultrasonic irradiation enhances the chemical activation process and the activated carbon fibrous materials with nanoporous structure were obtained by impregnation of seeds with alkaline hydroxides. Total surface areas of these samples were 976 m(2) g(-1), and 1130 m(2) g(-1). These fibers have total specific capacitance as high as 125 F g(-1) and 53 F g(-1) which major fraction in both cases originate from internal micropores structure. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Ultrasonics Sonochemistry
T1  - Characterization of nanoporous carbon fibrous materials obtained by chemical activation of plane tree seed under ultrasonic irradiation
VL  - 21
IS  - 2
SP  - 782
EP  - 789
DO  - 10.1016/j.ultsonch.2013.09.004
ER  - 

@article{
author = "Kaluđerović, Branka V. and Jovanovic, Vladislava M. and Stevanović, Sanja I. and Bogdanov, Žarko",
year = "2014",
abstract = "An ultrasonic irradiation was applied for the impregnation by chemical agents in the chemical activation process of new type of active carbon precursor. Plane tree seed, due to the unique fibrous structure and low cost is a promising eco-friendly raw material for the preparation of activated carbon materials. Ultrasonic irradiation was used for the impregnation step allowing the chemical activation by different agents: potassium or sodium hydroxide, hydrogen peroxide and pyrogallol. The porous structures were examined by nitrogen adsorption/desorption isotherms at 77 K and electrochemically by cyclic voltammetry. The textures of these materials were observed by scanning electron microscopy. The application of ultrasonic irradiation in the impregnation step increased surface area of the final material more than two times in comparison to the material which impregnation in the activation process was by conventional stirring. Ultrasonic irradiation enhances the chemical activation process and the activated carbon fibrous materials with nanoporous structure were obtained by impregnation of seeds with alkaline hydroxides. Total surface areas of these samples were 976 m(2) g(-1), and 1130 m(2) g(-1). These fibers have total specific capacitance as high as 125 F g(-1) and 53 F g(-1) which major fraction in both cases originate from internal micropores structure. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Ultrasonics Sonochemistry",
title = "Characterization of nanoporous carbon fibrous materials obtained by chemical activation of plane tree seed under ultrasonic irradiation",
volume = "21",
number = "2",
pages = "782-789",
doi = "10.1016/j.ultsonch.2013.09.004"
}

Kaluđerović, B. V., Jovanovic, V. M., Stevanović, S. I.,& Bogdanov, Ž.. (2014). Characterization of nanoporous carbon fibrous materials obtained by chemical activation of plane tree seed under ultrasonic irradiation. in Ultrasonics Sonochemistry, 21(2), 782-789.
https://doi.org/10.1016/j.ultsonch.2013.09.004

Kaluđerović BV, Jovanovic VM, Stevanović SI, Bogdanov Ž. Characterization of nanoporous carbon fibrous materials obtained by chemical activation of plane tree seed under ultrasonic irradiation. in Ultrasonics Sonochemistry. 2014;21(2):782-789.
doi:10.1016/j.ultsonch.2013.09.004 .

Kaluđerović, Branka V., Jovanovic, Vladislava M., Stevanović, Sanja I., Bogdanov, Žarko, "Characterization of nanoporous carbon fibrous materials obtained by chemical activation of plane tree seed under ultrasonic irradiation" in Ultrasonics Sonochemistry, 21, no. 2 (2014):782-789,
https://doi.org/10.1016/j.ultsonch.2013.09.004 . .

TY  - JOUR
AU  - Stojić, Dragica Lj.
AU  - Ćirić, Katarina D.
AU  - Cekić, Božidar Đ.
AU  - Koteski, Vasil J.
AU  - Zec, Slavica
AU  - Bogdanov, Žarko
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4497
AB  - The hydrogenation properties of HfNi and Hf(2)Ni(7) intermetallics were investigated at the constant pressure of 1 bar and in the temperature ranges 373-573 K for HfNi and 323-473 K for Hf(2)Ni(7). The kinetic parameters, rate constants and activation energies of the absorption processes were determined. Maximal hydrogen absorption, i.e., number of hydrogen atoms absorbed per metal atom, HIM, are 1.05 and 0.04 achieved at 373 K for HfNi and Hf(2)Ni(7), respectively. Multiple hydriding/dehydriding was found to influence the improvement of the kinetic parameters. XRD and SEM methods were used to investigate the structural and morphological changes of the samples due to hydrogen absorption. The thermodynamic parameters of hydriding together with the structural properties of the intermetallics and their hydrides, calculated using the full-potential linearized augmented plane waves (FP-LAPW) code based on the density functional theory (DFT), were utilized for the sake of explaining the experimental investigations. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
T2  - International Journal of Hydrogen Energy
T1  - Hydrogenation properties of Hf-Ni intermetallics - Experimental and theoretical investigation
VL  - 36
IS  - 17
SP  - 10771
EP  - 10778
DO  - 10.1016/j.ijhydene.2011.05.131
ER  - 

@article{
author = "Stojić, Dragica Lj. and Ćirić, Katarina D. and Cekić, Božidar Đ. and Koteski, Vasil J. and Zec, Slavica and Bogdanov, Žarko",
year = "2011",
abstract = "The hydrogenation properties of HfNi and Hf(2)Ni(7) intermetallics were investigated at the constant pressure of 1 bar and in the temperature ranges 373-573 K for HfNi and 323-473 K for Hf(2)Ni(7). The kinetic parameters, rate constants and activation energies of the absorption processes were determined. Maximal hydrogen absorption, i.e., number of hydrogen atoms absorbed per metal atom, HIM, are 1.05 and 0.04 achieved at 373 K for HfNi and Hf(2)Ni(7), respectively. Multiple hydriding/dehydriding was found to influence the improvement of the kinetic parameters. XRD and SEM methods were used to investigate the structural and morphological changes of the samples due to hydrogen absorption. The thermodynamic parameters of hydriding together with the structural properties of the intermetallics and their hydrides, calculated using the full-potential linearized augmented plane waves (FP-LAPW) code based on the density functional theory (DFT), were utilized for the sake of explaining the experimental investigations. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",
journal = "International Journal of Hydrogen Energy",
title = "Hydrogenation properties of Hf-Ni intermetallics - Experimental and theoretical investigation",
volume = "36",
number = "17",
pages = "10771-10778",
doi = "10.1016/j.ijhydene.2011.05.131"
}

Stojić, D. Lj., Ćirić, K. D., Cekić, B. Đ., Koteski, V. J., Zec, S.,& Bogdanov, Ž.. (2011). Hydrogenation properties of Hf-Ni intermetallics - Experimental and theoretical investigation. in International Journal of Hydrogen Energy, 36(17), 10771-10778.
https://doi.org/10.1016/j.ijhydene.2011.05.131

Stojić DL, Ćirić KD, Cekić BĐ, Koteski VJ, Zec S, Bogdanov Ž. Hydrogenation properties of Hf-Ni intermetallics - Experimental and theoretical investigation. in International Journal of Hydrogen Energy. 2011;36(17):10771-10778.
doi:10.1016/j.ijhydene.2011.05.131 .

Stojić, Dragica Lj., Ćirić, Katarina D., Cekić, Božidar Đ., Koteski, Vasil J., Zec, Slavica, Bogdanov, Žarko, "Hydrogenation properties of Hf-Ni intermetallics - Experimental and theoretical investigation" in International Journal of Hydrogen Energy, 36, no. 17 (2011):10771-10778,
https://doi.org/10.1016/j.ijhydene.2011.05.131 . .

TY  - JOUR
AU  - Ristić, Gordana S.
AU  - Bogdanov, Žarko
AU  - Trtica, Milan
AU  - Miljanić, Šćepan S.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4265
AB  - Diamond coatings were deposited onto different cylindrical substrates (Cu, SiC, W and Mo) by the hot filament chemical vapor deposition (CVD) method. Continuous, adhered and well-faceted crystalline coatings of diamond were obtained on Cu-wire using a special pretreatment with a mixture of diamond and metal powders as well as carefully controlled deposition at lower power. Diamond deposition on SiC-fiber gave continuous and uniform coatings when only the filament power was properly selected. Uniform, homogeneous, euchedral diamond coatings on W- and Mo-wires, attained at a higher filament power, confirmed once more the convenience of refractory metals as substrates for diamond deposition by the CVD technique. Characterization of the obtained coatings was realized using scanning electron microscopy (SEM). The obtained results are compared with the literature data. Differences are discussed with regard to the chemical nature of the substrates as well as their thermophysical characteristics.
T2  - Journal of the Serbian Chemical Society
T1  - Diamond deposition on thin cylindrical substrates
VL  - 76
IS  - 3
SP  - 407
EP  - 416
DO  - 10.2298/JSC100420030R
ER  - 

@article{
author = "Ristić, Gordana S. and Bogdanov, Žarko and Trtica, Milan and Miljanić, Šćepan S.",
year = "2011",
abstract = "Diamond coatings were deposited onto different cylindrical substrates (Cu, SiC, W and Mo) by the hot filament chemical vapor deposition (CVD) method. Continuous, adhered and well-faceted crystalline coatings of diamond were obtained on Cu-wire using a special pretreatment with a mixture of diamond and metal powders as well as carefully controlled deposition at lower power. Diamond deposition on SiC-fiber gave continuous and uniform coatings when only the filament power was properly selected. Uniform, homogeneous, euchedral diamond coatings on W- and Mo-wires, attained at a higher filament power, confirmed once more the convenience of refractory metals as substrates for diamond deposition by the CVD technique. Characterization of the obtained coatings was realized using scanning electron microscopy (SEM). The obtained results are compared with the literature data. Differences are discussed with regard to the chemical nature of the substrates as well as their thermophysical characteristics.",
journal = "Journal of the Serbian Chemical Society",
title = "Diamond deposition on thin cylindrical substrates",
volume = "76",
number = "3",
pages = "407-416",
doi = "10.2298/JSC100420030R"
}

Ristić, G. S., Bogdanov, Ž., Trtica, M.,& Miljanić, Š. S.. (2011). Diamond deposition on thin cylindrical substrates. in Journal of the Serbian Chemical Society, 76(3), 407-416.
https://doi.org/10.2298/JSC100420030R

Ristić GS, Bogdanov Ž, Trtica M, Miljanić ŠS. Diamond deposition on thin cylindrical substrates. in Journal of the Serbian Chemical Society. 2011;76(3):407-416.
doi:10.2298/JSC100420030R .

Ristić, Gordana S., Bogdanov, Žarko, Trtica, Milan, Miljanić, Šćepan S., "Diamond deposition on thin cylindrical substrates" in Journal of the Serbian Chemical Society, 76, no. 3 (2011):407-416,
https://doi.org/10.2298/JSC100420030R . .

TY  - JOUR
AU  - Kljajević, Ljiljana M.
AU  - Jovanovic, Vladislava M.
AU  - Stevanović, Sanja I.
AU  - Bogdanov, Žarko
AU  - Kaluđerović, Branka V.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4515
AB  - Active carbon hollow fibers were prepared from regenerated polysulfone hollow fibers by chemical activation using: disodium hydrogen phosphate 2-hydrate, disodium tetraborate 10-hydrate, hydrogen peroxide, and diammonium hydrogen phosphate. After chemical activation fibers were carbonized in an inert atmosphere. The specific surface area and porosity of obtained carbons were studied by nitrogen adsorption-desorption isotherms at 77 K, while the structures were examined with scanning electron microscopy and X-ray diffraction. The activation process increases these adsorption properties of fibers being more pronounced for active carbon fibers obtained with disodium tetraborate 10-hydrate and hydrogen peroxide as activator. The obtained active hollow carbons are microporous with different pore size distribution. Chemical activation with phosphates produces active carbon material with small surface area but with both mesopores and micropores. X-ray diffraction shows that besides turbostratic structure typical for carbon materials, there are some peaks which indicate some intermediate reaction products when sodium salts were used as activating agent. Based on data from the electrochemical measurements the activity and porosity of the active fibers depend strongly on the oxidizing agent applied.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of chemical agents on the surface area and porosity of active carbon hollow fibers
VL  - 76
IS  - 9
SP  - 1283
EP  - 1294
DO  - 10.2298/JSC100226112K
ER  - 

@article{
author = "Kljajević, Ljiljana M. and Jovanovic, Vladislava M. and Stevanović, Sanja I. and Bogdanov, Žarko and Kaluđerović, Branka V.",
year = "2011",
abstract = "Active carbon hollow fibers were prepared from regenerated polysulfone hollow fibers by chemical activation using: disodium hydrogen phosphate 2-hydrate, disodium tetraborate 10-hydrate, hydrogen peroxide, and diammonium hydrogen phosphate. After chemical activation fibers were carbonized in an inert atmosphere. The specific surface area and porosity of obtained carbons were studied by nitrogen adsorption-desorption isotherms at 77 K, while the structures were examined with scanning electron microscopy and X-ray diffraction. The activation process increases these adsorption properties of fibers being more pronounced for active carbon fibers obtained with disodium tetraborate 10-hydrate and hydrogen peroxide as activator. The obtained active hollow carbons are microporous with different pore size distribution. Chemical activation with phosphates produces active carbon material with small surface area but with both mesopores and micropores. X-ray diffraction shows that besides turbostratic structure typical for carbon materials, there are some peaks which indicate some intermediate reaction products when sodium salts were used as activating agent. Based on data from the electrochemical measurements the activity and porosity of the active fibers depend strongly on the oxidizing agent applied.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of chemical agents on the surface area and porosity of active carbon hollow fibers",
volume = "76",
number = "9",
pages = "1283-1294",
doi = "10.2298/JSC100226112K"
}

Kljajević, L. M., Jovanovic, V. M., Stevanović, S. I., Bogdanov, Ž.,& Kaluđerović, B. V.. (2011). Influence of chemical agents on the surface area and porosity of active carbon hollow fibers. in Journal of the Serbian Chemical Society, 76(9), 1283-1294.
https://doi.org/10.2298/JSC100226112K

Kljajević LM, Jovanovic VM, Stevanović SI, Bogdanov Ž, Kaluđerović BV. Influence of chemical agents on the surface area and porosity of active carbon hollow fibers. in Journal of the Serbian Chemical Society. 2011;76(9):1283-1294.
doi:10.2298/JSC100226112K .

Kljajević, Ljiljana M., Jovanovic, Vladislava M., Stevanović, Sanja I., Bogdanov, Žarko, Kaluđerović, Branka V., "Influence of chemical agents on the surface area and porosity of active carbon hollow fibers" in Journal of the Serbian Chemical Society, 76, no. 9 (2011):1283-1294,
https://doi.org/10.2298/JSC100226112K . .

TY  - JOUR
AU  - Kaluđerović, Branka V.
AU  - Kljajević, Ljiljana M.
AU  - Sekulić, Danijela R.
AU  - Stašić, Jelena
AU  - Bogdanov, Žarko
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3641
AB  - Carbon hollow fibers were prepared with regenerated cellulose or polysulfone hollow fibers by chemical activation using sodium phosphate dibasic followed by the carbonization process The activation process Increases the adsorption properties of fibers which is more prominent for active carbone fibers obtained from the cellulose precursor Chemical activation with sodium phosphate dibasic produces an active carbon material with both mesopores and micropores.
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Adsorption Characteristics of Activated Carbon Hollow Fibers
VL  - 15
IS  - 1
SP  - 29
EP  - 31
DO  - 10.2298/CICEQ0901029K
ER  - 

@article{
author = "Kaluđerović, Branka V. and Kljajević, Ljiljana M. and Sekulić, Danijela R. and Stašić, Jelena and Bogdanov, Žarko",
year = "2009",
abstract = "Carbon hollow fibers were prepared with regenerated cellulose or polysulfone hollow fibers by chemical activation using sodium phosphate dibasic followed by the carbonization process The activation process Increases the adsorption properties of fibers which is more prominent for active carbone fibers obtained from the cellulose precursor Chemical activation with sodium phosphate dibasic produces an active carbon material with both mesopores and micropores.",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Adsorption Characteristics of Activated Carbon Hollow Fibers",
volume = "15",
number = "1",
pages = "29-31",
doi = "10.2298/CICEQ0901029K"
}

Kaluđerović, B. V., Kljajević, L. M., Sekulić, D. R., Stašić, J.,& Bogdanov, Ž.. (2009). Adsorption Characteristics of Activated Carbon Hollow Fibers. in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 15(1), 29-31.
https://doi.org/10.2298/CICEQ0901029K

Kaluđerović BV, Kljajević LM, Sekulić DR, Stašić J, Bogdanov Ž. Adsorption Characteristics of Activated Carbon Hollow Fibers. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2009;15(1):29-31.
doi:10.2298/CICEQ0901029K .

Kaluđerović, Branka V., Kljajević, Ljiljana M., Sekulić, Danijela R., Stašić, Jelena, Bogdanov, Žarko, "Adsorption Characteristics of Activated Carbon Hollow Fibers" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 15, no. 1 (2009):29-31,
https://doi.org/10.2298/CICEQ0901029K . .

TY  - JOUR
AU  - Ristić, Gordana S.
AU  - Trtica, Milan
AU  - Bogdanov, Žarko
AU  - Rakočević, Zlatko Lj.
AU  - Miljanić, Šćepan S.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3758
AB  - Diamond coatings were deposited by the synchronous and coupled action of a hot filament CVD method and a pulsed CO(2) laser in spectro-absorbing and spectro-non-absorbing diamond precursor atmospheres. The obtained coatings were structured/patterned, i.e., they were comprised of uncovered, bare locations. An extra effect observed only in the spectro-active diamond precursor atmosphere was the creation of another laser spot in the coating - a reflection spot. In order to establish the practical usability of the latter one, extensive microscopic investigations were performed with consideration of the morphology changes in the spot of the direct laser beam. Normal incidence SEM images of this spot showed a smooth surface, without any pulse radiation damage. AFM imaging revealed the actual surface condition and gave precise data on the surface characteristics.
T2  - Journal of the Serbian Chemical Society
T1  - Laser reflection spot as a pattern in a diamond coating - a microscopic study
VL  - 74
IS  - 7
SP  - 773
EP  - 779
DO  - 10.2298/JSC0907773R
ER  - 

@article{
author = "Ristić, Gordana S. and Trtica, Milan and Bogdanov, Žarko and Rakočević, Zlatko Lj. and Miljanić, Šćepan S.",
year = "2009",
abstract = "Diamond coatings were deposited by the synchronous and coupled action of a hot filament CVD method and a pulsed CO(2) laser in spectro-absorbing and spectro-non-absorbing diamond precursor atmospheres. The obtained coatings were structured/patterned, i.e., they were comprised of uncovered, bare locations. An extra effect observed only in the spectro-active diamond precursor atmosphere was the creation of another laser spot in the coating - a reflection spot. In order to establish the practical usability of the latter one, extensive microscopic investigations were performed with consideration of the morphology changes in the spot of the direct laser beam. Normal incidence SEM images of this spot showed a smooth surface, without any pulse radiation damage. AFM imaging revealed the actual surface condition and gave precise data on the surface characteristics.",
journal = "Journal of the Serbian Chemical Society",
title = "Laser reflection spot as a pattern in a diamond coating - a microscopic study",
volume = "74",
number = "7",
pages = "773-779",
doi = "10.2298/JSC0907773R"
}

Ristić, G. S., Trtica, M., Bogdanov, Ž., Rakočević, Z. Lj.,& Miljanić, Š. S.. (2009). Laser reflection spot as a pattern in a diamond coating - a microscopic study. in Journal of the Serbian Chemical Society, 74(7), 773-779.
https://doi.org/10.2298/JSC0907773R

Ristić GS, Trtica M, Bogdanov Ž, Rakočević ZL, Miljanić ŠS. Laser reflection spot as a pattern in a diamond coating - a microscopic study. in Journal of the Serbian Chemical Society. 2009;74(7):773-779.
doi:10.2298/JSC0907773R .

Ristić, Gordana S., Trtica, Milan, Bogdanov, Žarko, Rakočević, Zlatko Lj., Miljanić, Šćepan S., "Laser reflection spot as a pattern in a diamond coating - a microscopic study" in Journal of the Serbian Chemical Society, 74, no. 7 (2009):773-779,
https://doi.org/10.2298/JSC0907773R . .

TY  - JOUR
AU  - Zec, Slavica
AU  - Bošković, Snežana B.
AU  - Kaluđerović, Branka V.
AU  - Bogdanov, Žarko
AU  - Popovic, Nada
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3592
AB  - The reduction of commercial and mechanochemically processed CeO2 powders was studied. Nanostructured CeO2, with the crystallite size of 21 nm and the lattice distortion of 0.37%, was obtained during 60 min of milling in a high-energetic vibratory mill. X-ray diffraction, scanning electron microscopy and Brunauer-Emmett-Teller method were applied to characterize the milled powders. During the thermal treatment at 1200 and 1400 degrees C in an argon atmosphere the nonstoichiometric CeO2-x oxides with the defect fluorite structure were formed. Compositions of CeO2-x oxides were determined according to its lattice parameter. The results showed that the release of oxygen, as well as the rate of reduction, was more effective in nanocrystalline then in the microcrystalline CeO2, producing at 1200 degrees C Ce-1.80 and CeO1.85 oxides, while at 1400 degrees C were obtained similarly, CeO1.77 and CeO1.78, compositions. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Chemical reduction of nanocrystalline CeO2
VL  - 35
IS  - 1
SP  - 195
EP  - 198
DO  - 10.1016/j.ceramint.2007.10.031
ER  - 

@article{
author = "Zec, Slavica and Bošković, Snežana B. and Kaluđerović, Branka V. and Bogdanov, Žarko and Popovic, Nada",
year = "2009",
abstract = "The reduction of commercial and mechanochemically processed CeO2 powders was studied. Nanostructured CeO2, with the crystallite size of 21 nm and the lattice distortion of 0.37%, was obtained during 60 min of milling in a high-energetic vibratory mill. X-ray diffraction, scanning electron microscopy and Brunauer-Emmett-Teller method were applied to characterize the milled powders. During the thermal treatment at 1200 and 1400 degrees C in an argon atmosphere the nonstoichiometric CeO2-x oxides with the defect fluorite structure were formed. Compositions of CeO2-x oxides were determined according to its lattice parameter. The results showed that the release of oxygen, as well as the rate of reduction, was more effective in nanocrystalline then in the microcrystalline CeO2, producing at 1200 degrees C Ce-1.80 and CeO1.85 oxides, while at 1400 degrees C were obtained similarly, CeO1.77 and CeO1.78, compositions. (c) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Chemical reduction of nanocrystalline CeO2",
volume = "35",
number = "1",
pages = "195-198",
doi = "10.1016/j.ceramint.2007.10.031"
}

Zec, S., Bošković, S. B., Kaluđerović, B. V., Bogdanov, Ž.,& Popovic, N.. (2009). Chemical reduction of nanocrystalline CeO2. in Ceramics International, 35(1), 195-198.
https://doi.org/10.1016/j.ceramint.2007.10.031

Zec S, Bošković SB, Kaluđerović BV, Bogdanov Ž, Popovic N. Chemical reduction of nanocrystalline CeO2. in Ceramics International. 2009;35(1):195-198.
doi:10.1016/j.ceramint.2007.10.031 .

Zec, Slavica, Bošković, Snežana B., Kaluđerović, Branka V., Bogdanov, Žarko, Popovic, Nada, "Chemical reduction of nanocrystalline CeO2" in Ceramics International, 35, no. 1 (2009):195-198,
https://doi.org/10.1016/j.ceramint.2007.10.031 . .

TY  - JOUR
AU  - Popovic, N.
AU  - Bogdanov, Žarko
AU  - Goncić, Bratislav
AU  - Štrbac, Svetlana
AU  - Rakočević, Zlatko Lj.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3610
AB  - Nickel thin films were deposited on glass substrates at different N-2 gas contents using a dc triode sputtering deposition system. Triode configuration was used to deposit nanostructured thin films with preferred orientation at lower gas pressure and at lower substrate temperature compared to the dc diode sputtering system. A gradual evolution in the composition of the films from Ni, Ni(N), to Ni3N was found by X-ray diffraction analysis. The preferred growth orientation of the nanostructured Ni films changed from (1 1 1) to (1 0 0) for 9% N-2 at 100 degrees C. Ni3N films were formed at 23% N-2 with a particle size of about 65 nm, while for 0% and 9% of nitrogen, the particles sizes were 60 nm, and 37 nm, respectively, as obtained by atomic force microscopy. Magnetic force microscopy imaging showed that the local magnetic structure changed from disordered stripe domains of about 200 nm for Ni and Ni(N) to a structure without a magnetic contrast, indicating the paramagnetic state of this material, which confirmed the structural transformation from Ni to Ni3N. (C) 2008 Elsevier B. V. All rights reserved.
T2  - Applied Surface Science
T1  - Reactively sputtered Ni, Ni(N) and Ni3N films: Structural, electrical and magnetic properties
VL  - 255
IS  - 7
SP  - 4027
EP  - 4032
DO  - 10.1016/j.apsusc.2008.10.076
ER  - 

@article{
author = "Popovic, N. and Bogdanov, Žarko and Goncić, Bratislav and Štrbac, Svetlana and Rakočević, Zlatko Lj.",
year = "2009",
abstract = "Nickel thin films were deposited on glass substrates at different N-2 gas contents using a dc triode sputtering deposition system. Triode configuration was used to deposit nanostructured thin films with preferred orientation at lower gas pressure and at lower substrate temperature compared to the dc diode sputtering system. A gradual evolution in the composition of the films from Ni, Ni(N), to Ni3N was found by X-ray diffraction analysis. The preferred growth orientation of the nanostructured Ni films changed from (1 1 1) to (1 0 0) for 9% N-2 at 100 degrees C. Ni3N films were formed at 23% N-2 with a particle size of about 65 nm, while for 0% and 9% of nitrogen, the particles sizes were 60 nm, and 37 nm, respectively, as obtained by atomic force microscopy. Magnetic force microscopy imaging showed that the local magnetic structure changed from disordered stripe domains of about 200 nm for Ni and Ni(N) to a structure without a magnetic contrast, indicating the paramagnetic state of this material, which confirmed the structural transformation from Ni to Ni3N. (C) 2008 Elsevier B. V. All rights reserved.",
journal = "Applied Surface Science",
title = "Reactively sputtered Ni, Ni(N) and Ni3N films: Structural, electrical and magnetic properties",
volume = "255",
number = "7",
pages = "4027-4032",
doi = "10.1016/j.apsusc.2008.10.076"
}

Popovic, N., Bogdanov, Ž., Goncić, B., Štrbac, S.,& Rakočević, Z. Lj.. (2009). Reactively sputtered Ni, Ni(N) and Ni3N films: Structural, electrical and magnetic properties. in Applied Surface Science, 255(7), 4027-4032.
https://doi.org/10.1016/j.apsusc.2008.10.076

Popovic N, Bogdanov Ž, Goncić B, Štrbac S, Rakočević ZL. Reactively sputtered Ni, Ni(N) and Ni3N films: Structural, electrical and magnetic properties. in Applied Surface Science. 2009;255(7):4027-4032.
doi:10.1016/j.apsusc.2008.10.076 .

Popovic, N., Bogdanov, Žarko, Goncić, Bratislav, Štrbac, Svetlana, Rakočević, Zlatko Lj., "Reactively sputtered Ni, Ni(N) and Ni3N films: Structural, electrical and magnetic properties" in Applied Surface Science, 255, no. 7 (2009):4027-4032,
https://doi.org/10.1016/j.apsusc.2008.10.076 . .

TY  - JOUR
AU  - Kaluđerović, Branka V.
AU  - Jovanovic, V. M.
AU  - Babić, Biljana M.
AU  - Terzić, S.
AU  - Bogdanov, Žarko
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3555
AB  - Platinum supported on high surface area carbon material is one of the most intensively studied catalysts. However, physicochemical characteristics and surface chemistry of carbon influence properties of the support itself as well as of a catalyst. In our studies we deposited platinum on hollow fibers with or without carbon cryogel. Carbon materials were characterized by nitrogen adsorption/desorption isotherms measurements, X-ray fluorescence spectrometry and scanning electron microscope, Deposition of platinum was performed chemically and electrochemically. The electrochemical deposition was performed on the grinded samples at the same conditions for all substrates with the aim to study the activity of the catalyst. It was noticed that the nature of carbon support affected structure of platinum deposits and thus their activity.
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Characterization of platinum deposited on carbon hollow fibers/carbon cryogel composites
VL  - 10
IS  - 10
SP  - 2708
EP  - 2712
UR  - https://hdl.handle.net/21.15107/rcub_vinar_3555
ER  - 

@article{
author = "Kaluđerović, Branka V. and Jovanovic, V. M. and Babić, Biljana M. and Terzić, S. and Bogdanov, Žarko",
year = "2008",
abstract = "Platinum supported on high surface area carbon material is one of the most intensively studied catalysts. However, physicochemical characteristics and surface chemistry of carbon influence properties of the support itself as well as of a catalyst. In our studies we deposited platinum on hollow fibers with or without carbon cryogel. Carbon materials were characterized by nitrogen adsorption/desorption isotherms measurements, X-ray fluorescence spectrometry and scanning electron microscope, Deposition of platinum was performed chemically and electrochemically. The electrochemical deposition was performed on the grinded samples at the same conditions for all substrates with the aim to study the activity of the catalyst. It was noticed that the nature of carbon support affected structure of platinum deposits and thus their activity.",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Characterization of platinum deposited on carbon hollow fibers/carbon cryogel composites",
volume = "10",
number = "10",
pages = "2708-2712",
url = "https://hdl.handle.net/21.15107/rcub_vinar_3555"
}

Kaluđerović, B. V., Jovanovic, V. M., Babić, B. M., Terzić, S.,& Bogdanov, Ž.. (2008). Characterization of platinum deposited on carbon hollow fibers/carbon cryogel composites. in Journal of Optoelectronics and Advanced Materials, 10(10), 2708-2712.
https://hdl.handle.net/21.15107/rcub_vinar_3555

Kaluđerović BV, Jovanovic VM, Babić BM, Terzić S, Bogdanov Ž. Characterization of platinum deposited on carbon hollow fibers/carbon cryogel composites. in Journal of Optoelectronics and Advanced Materials. 2008;10(10):2708-2712.
https://hdl.handle.net/21.15107/rcub_vinar_3555 .

Kaluđerović, Branka V., Jovanovic, V. M., Babić, Biljana M., Terzić, S., Bogdanov, Žarko, "Characterization of platinum deposited on carbon hollow fibers/carbon cryogel composites" in Journal of Optoelectronics and Advanced Materials, 10, no. 10 (2008):2708-2712,
https://hdl.handle.net/21.15107/rcub_vinar_3555 .

TY  - JOUR
AU  - Rakočević, Zlatko Lj.
AU  - Popovic, N.
AU  - Bogdanov, Žarko
AU  - Goncić, Bratislav
AU  - Štrbac, Svetlana
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3480
AB  - Nickel was sputter deposited on a glass with a thin film thickness of 600 nm under either in an argon atmosphere or under a partial pressure of nitrogen of either 1.3x10(-4) or 4x10(-4) mbar. Atomic force microscopy and scanning surface potential microscopy (SSPM) were used to study the morphology and to estimate the surface resistivity of the obtained Ni thin films taking into account surface-roughness effects. For the three samples investigated, the surface resistivity values as estimated using SSPM were in good agreement with the results obtained by standard four-point probe measurements. (c) 2008 American Institute of Physics.
T2  - Review of Scientific Instruments
T1  - Surface resistivity estimation by scanning surface potential microscopy
VL  - 79
IS  - 6
DO  - 10.1063/1.2937647
ER  - 

@article{
author = "Rakočević, Zlatko Lj. and Popovic, N. and Bogdanov, Žarko and Goncić, Bratislav and Štrbac, Svetlana",
year = "2008",
abstract = "Nickel was sputter deposited on a glass with a thin film thickness of 600 nm under either in an argon atmosphere or under a partial pressure of nitrogen of either 1.3x10(-4) or 4x10(-4) mbar. Atomic force microscopy and scanning surface potential microscopy (SSPM) were used to study the morphology and to estimate the surface resistivity of the obtained Ni thin films taking into account surface-roughness effects. For the three samples investigated, the surface resistivity values as estimated using SSPM were in good agreement with the results obtained by standard four-point probe measurements. (c) 2008 American Institute of Physics.",
journal = "Review of Scientific Instruments",
title = "Surface resistivity estimation by scanning surface potential microscopy",
volume = "79",
number = "6",
doi = "10.1063/1.2937647"
}

Rakočević, Z. Lj., Popovic, N., Bogdanov, Ž., Goncić, B.,& Štrbac, S.. (2008). Surface resistivity estimation by scanning surface potential microscopy. in Review of Scientific Instruments, 79(6).
https://doi.org/10.1063/1.2937647

Rakočević ZL, Popovic N, Bogdanov Ž, Goncić B, Štrbac S. Surface resistivity estimation by scanning surface potential microscopy. in Review of Scientific Instruments. 2008;79(6).
doi:10.1063/1.2937647 .

Rakočević, Zlatko Lj., Popovic, N., Bogdanov, Žarko, Goncić, Bratislav, Štrbac, Svetlana, "Surface resistivity estimation by scanning surface potential microscopy" in Review of Scientific Instruments, 79, no. 6 (2008),
https://doi.org/10.1063/1.2937647 . .

TY  - JOUR
AU  - Mentus, Slavko V.
AU  - Bošković, Ivana V.
AU  - Pjescic, J. M.
AU  - Grudic, V.
AU  - Bogdanov, Žarko
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3346
AB  - Three different forms of Ag/TiO2 composite layers, which have whisker-, dot- and island-like distribution of silver were obtained on a mechanically polished titanium surface by adjusting the conditions of silver deposition from an aqueous AgNO3 solution. The deposit morphology was the result of both the program of electrode polarization and the template action of the simultaneously formed TiO2 layer. The catalytic activity of the composite layers toward the oxygen reduction reaction was studied in aqueous 0.1 M NaOH solutions and found to be a function of both the surface loading of silver and the type of silver distribution within the Ag/TiO2 composite layers. The reaction path of oxygen reduction on the composite layers was found to be always a 4e(-) one, characteristic otherwise of polycrystalline silver electrodes.
T2  - Journal of the Serbian Chemical Society
T1  - Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces
VL  - 72
IS  - 12
SP  - 1403
EP  - 1418
DO  - 10.2298/JSC0712403M
ER  - 

@article{
author = "Mentus, Slavko V. and Bošković, Ivana V. and Pjescic, J. M. and Grudic, V. and Bogdanov, Žarko",
year = "2007",
abstract = "Three different forms of Ag/TiO2 composite layers, which have whisker-, dot- and island-like distribution of silver were obtained on a mechanically polished titanium surface by adjusting the conditions of silver deposition from an aqueous AgNO3 solution. The deposit morphology was the result of both the program of electrode polarization and the template action of the simultaneously formed TiO2 layer. The catalytic activity of the composite layers toward the oxygen reduction reaction was studied in aqueous 0.1 M NaOH solutions and found to be a function of both the surface loading of silver and the type of silver distribution within the Ag/TiO2 composite layers. The reaction path of oxygen reduction on the composite layers was found to be always a 4e(-) one, characteristic otherwise of polycrystalline silver electrodes.",
journal = "Journal of the Serbian Chemical Society",
title = "Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces",
volume = "72",
number = "12",
pages = "1403-1418",
doi = "10.2298/JSC0712403M"
}

Mentus, S. V., Bošković, I. V., Pjescic, J. M., Grudic, V.,& Bogdanov, Ž.. (2007). Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces. in Journal of the Serbian Chemical Society, 72(12), 1403-1418.
https://doi.org/10.2298/JSC0712403M

Mentus SV, Bošković IV, Pjescic JM, Grudic V, Bogdanov Ž. Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces. in Journal of the Serbian Chemical Society. 2007;72(12):1403-1418.
doi:10.2298/JSC0712403M .

Mentus, Slavko V., Bošković, Ivana V., Pjescic, J. M., Grudic, V., Bogdanov, Žarko, "Tailoring the morphology and electrocatalytic properties of electrochemically formed Ag/TiO2 composite deposits on titanium surfaces" in Journal of the Serbian Chemical Society, 72, no. 12 (2007):1403-1418,
https://doi.org/10.2298/JSC0712403M . .

TY  - JOUR
AU  - Ristić, Gordana S.
AU  - Trtica, Milan
AU  - Bogdanov, Žarko
AU  - Romčević, Nebojša Ž.
AU  - Miljanić, Šćepan S.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3190
AB  - Diamond coatings were deposited by synergy of the hot filament CVD method and the pulse TEA CO2 laser, in spectroactive and spectroinactive diamond precursor atmospheres. Resulting diamond coatings are interpreted relying on evidence of scanning electron microscopy as well as microRaman spectroscopy. Thermal synergy component (hot filament) possesses an activating agent for diamond deposition, and contributes significantly to quality and extent of diamond deposition. Laser synergy component comprises a solid surface modification as well as the spectroactive gaseous atmosphere modification. Surface modification consists in changes of the diamond coating being deposited and, at the same time, in changes of the substrate surface structure. Laser modification of the spectroactive diamond precursor atmosphere means specific consumption of the precursor, which enables to skip the deposition on a defined substrate location. The resulting process of diamond coating elimination from certain, desired locations using the CO2 laser might contribute to tailoring diamond coatings for particular applications. Additionally, the substrate laser modification could be optimized by choice of a proper spectroactive precursor concentration, or by a laser radiation multiple pass through an absorbing medium. (c) 2006 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Diamond coating deposition by synergy of thermal and laser methods - A problem revisited
VL  - 253
IS  - 12
SP  - 5233
EP  - 5239
DO  - 10.1016/j.apsusc.2006.11.045
ER  - 

@article{
author = "Ristić, Gordana S. and Trtica, Milan and Bogdanov, Žarko and Romčević, Nebojša Ž. and Miljanić, Šćepan S.",
year = "2007",
abstract = "Diamond coatings were deposited by synergy of the hot filament CVD method and the pulse TEA CO2 laser, in spectroactive and spectroinactive diamond precursor atmospheres. Resulting diamond coatings are interpreted relying on evidence of scanning electron microscopy as well as microRaman spectroscopy. Thermal synergy component (hot filament) possesses an activating agent for diamond deposition, and contributes significantly to quality and extent of diamond deposition. Laser synergy component comprises a solid surface modification as well as the spectroactive gaseous atmosphere modification. Surface modification consists in changes of the diamond coating being deposited and, at the same time, in changes of the substrate surface structure. Laser modification of the spectroactive diamond precursor atmosphere means specific consumption of the precursor, which enables to skip the deposition on a defined substrate location. The resulting process of diamond coating elimination from certain, desired locations using the CO2 laser might contribute to tailoring diamond coatings for particular applications. Additionally, the substrate laser modification could be optimized by choice of a proper spectroactive precursor concentration, or by a laser radiation multiple pass through an absorbing medium. (c) 2006 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Diamond coating deposition by synergy of thermal and laser methods - A problem revisited",
volume = "253",
number = "12",
pages = "5233-5239",
doi = "10.1016/j.apsusc.2006.11.045"
}

Ristić, G. S., Trtica, M., Bogdanov, Ž., Romčević, N. Ž.,& Miljanić, Š. S.. (2007). Diamond coating deposition by synergy of thermal and laser methods - A problem revisited. in Applied Surface Science, 253(12), 5233-5239.
https://doi.org/10.1016/j.apsusc.2006.11.045

Ristić GS, Trtica M, Bogdanov Ž, Romčević NŽ, Miljanić ŠS. Diamond coating deposition by synergy of thermal and laser methods - A problem revisited. in Applied Surface Science. 2007;253(12):5233-5239.
doi:10.1016/j.apsusc.2006.11.045 .

Ristić, Gordana S., Trtica, Milan, Bogdanov, Žarko, Romčević, Nebojša Ž., Miljanić, Šćepan S., "Diamond coating deposition by synergy of thermal and laser methods - A problem revisited" in Applied Surface Science, 253, no. 12 (2007):5233-5239,
https://doi.org/10.1016/j.apsusc.2006.11.045 . .

TY  - CONF
AU  - Bogdanov, Žarko
AU  - Popovic, N.
AU  - Zlatanovic, M.
AU  - Goncić, Bratislav
AU  - Rakočević, Zlatko Lj.
AU  - Zec, Slavica
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6692
AB  - The reactive sputter deposition of TiN thin films onto glass substrate at the ambient temperature using a homemade broad beam argon ion source was investigated in order to deposit the films with nanostructural characteristics. While constant Ar beam energy of 2 keV was used, the N-2 partial pressure and the substrate current, adjusted by different accelerator grid potentials (V-acc) were varied. A negative substrate bias voltage (100 V) was additionally applied. The TiN film structure was investigated by XRD and STM methods. All deposited films exhibited (220) preferred orientation, and the change in normalized peak intensity (I-220/d), lattice spacing (d(220)) and full-with at half-maximum (FWHM) were investigated. As a result of higher energy bombardment with 100 V negative substrate bias, compared to the substrate current change with V-acc, nearly constant (220) peak broadening with the increase of N-2 partial pressure was obtained. The measured grain diameter (STM and XRD) confirms that the grain size is less than 12 nm, and the (220) preferred orientation was disturbed but not destructed.
C3  - Materials Science Forum
T1  - Nano-structured TiN thin films deposited by single ion beam reactive sputtering
VL  - 555
SP  - 303
EP  - +
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6692
ER  - 

@conference{
author = "Bogdanov, Žarko and Popovic, N. and Zlatanovic, M. and Goncić, Bratislav and Rakočević, Zlatko Lj. and Zec, Slavica",
year = "2007",
abstract = "The reactive sputter deposition of TiN thin films onto glass substrate at the ambient temperature using a homemade broad beam argon ion source was investigated in order to deposit the films with nanostructural characteristics. While constant Ar beam energy of 2 keV was used, the N-2 partial pressure and the substrate current, adjusted by different accelerator grid potentials (V-acc) were varied. A negative substrate bias voltage (100 V) was additionally applied. The TiN film structure was investigated by XRD and STM methods. All deposited films exhibited (220) preferred orientation, and the change in normalized peak intensity (I-220/d), lattice spacing (d(220)) and full-with at half-maximum (FWHM) were investigated. As a result of higher energy bombardment with 100 V negative substrate bias, compared to the substrate current change with V-acc, nearly constant (220) peak broadening with the increase of N-2 partial pressure was obtained. The measured grain diameter (STM and XRD) confirms that the grain size is less than 12 nm, and the (220) preferred orientation was disturbed but not destructed.",
journal = "Materials Science Forum",
title = "Nano-structured TiN thin films deposited by single ion beam reactive sputtering",
volume = "555",
pages = "303-+",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6692"
}

Bogdanov, Ž., Popovic, N., Zlatanovic, M., Goncić, B., Rakočević, Z. Lj.,& Zec, S.. (2007). Nano-structured TiN thin films deposited by single ion beam reactive sputtering. in Materials Science Forum, 555, 303-+.
https://hdl.handle.net/21.15107/rcub_vinar_6692

Bogdanov Ž, Popovic N, Zlatanovic M, Goncić B, Rakočević ZL, Zec S. Nano-structured TiN thin films deposited by single ion beam reactive sputtering. in Materials Science Forum. 2007;555:303-+.
https://hdl.handle.net/21.15107/rcub_vinar_6692 .

Bogdanov, Žarko, Popovic, N., Zlatanovic, M., Goncić, Bratislav, Rakočević, Zlatko Lj., Zec, Slavica, "Nano-structured TiN thin films deposited by single ion beam reactive sputtering" in Materials Science Forum, 555 (2007):303-+,
https://hdl.handle.net/21.15107/rcub_vinar_6692 .

TY  - JOUR
AU  - Zec, Slavica
AU  - Bošković, Snežana B.
AU  - Popovic, N
AU  - Bogdanov, Žarko
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3035
AB  - The phase equilibria in the CeO2-xSiO2-ZrO2 system were studied in the subsolidus region in argon atmosphere, under isothermal heating and hot pressing, at 1400 degrees C, different ceria, silica, and zirconia mixtures. X-ray diffraction (XRD), scanning electron microscopy (SEM) and electron probe microanalysis (EPMA) were performed to identify phases and to establish phase equilibria. Based on the results of many preliminarily investigated ternary compositions, possible tie lines are predicted. Compositions from the proposed tie lines were successively fired and ground until the changes of the phase compositions were not detected or were low enough to be neglected. Phases identified in these compositions confirmed the existence of five tie lines: Ce2Si2O7-ZrSiO4, Ce2Si2O7-ZrO2, Ce-4.67(SiO4)(3)O-ZrO2, Ce-4.67(SiO4)(3)O-Ce2Zr2O7 and Ce2SiO5-Ce2Zr2O7, which divide the CeO2-x-SiO2ZrO2 composition triangle into six compatibility triangles. The formation of ternary compounds or ternary solid solutions in the CeO2-x-SiO2-ZrO2 system was not observed. The monoclinic high temperature polymorph of Ce2Si2O7 was detected. The cubic pyrochlore phases had different lattice parameters, caused by incomplete reduction of the tetravalent cerium ions also observed in the non-stoichiometric cerium oxide.
T2  - International Journal of Materials Research
T1  - Subsolidus phase equilibria in the CeO2-x-SiO2-ZrO2 system: An experimental study
VL  - 97
IS  - 5
SP  - 579
EP  - 583
DO  - 10.3139/146.101274
ER  - 

@article{
author = "Zec, Slavica and Bošković, Snežana B. and Popovic, N and Bogdanov, Žarko",
year = "2006",
abstract = "The phase equilibria in the CeO2-xSiO2-ZrO2 system were studied in the subsolidus region in argon atmosphere, under isothermal heating and hot pressing, at 1400 degrees C, different ceria, silica, and zirconia mixtures. X-ray diffraction (XRD), scanning electron microscopy (SEM) and electron probe microanalysis (EPMA) were performed to identify phases and to establish phase equilibria. Based on the results of many preliminarily investigated ternary compositions, possible tie lines are predicted. Compositions from the proposed tie lines were successively fired and ground until the changes of the phase compositions were not detected or were low enough to be neglected. Phases identified in these compositions confirmed the existence of five tie lines: Ce2Si2O7-ZrSiO4, Ce2Si2O7-ZrO2, Ce-4.67(SiO4)(3)O-ZrO2, Ce-4.67(SiO4)(3)O-Ce2Zr2O7 and Ce2SiO5-Ce2Zr2O7, which divide the CeO2-x-SiO2ZrO2 composition triangle into six compatibility triangles. The formation of ternary compounds or ternary solid solutions in the CeO2-x-SiO2-ZrO2 system was not observed. The monoclinic high temperature polymorph of Ce2Si2O7 was detected. The cubic pyrochlore phases had different lattice parameters, caused by incomplete reduction of the tetravalent cerium ions also observed in the non-stoichiometric cerium oxide.",
journal = "International Journal of Materials Research",
title = "Subsolidus phase equilibria in the CeO2-x-SiO2-ZrO2 system: An experimental study",
volume = "97",
number = "5",
pages = "579-583",
doi = "10.3139/146.101274"
}

Zec, S., Bošković, S. B., Popovic, N.,& Bogdanov, Ž.. (2006). Subsolidus phase equilibria in the CeO2-x-SiO2-ZrO2 system: An experimental study. in International Journal of Materials Research, 97(5), 579-583.
https://doi.org/10.3139/146.101274

Zec S, Bošković SB, Popovic N, Bogdanov Ž. Subsolidus phase equilibria in the CeO2-x-SiO2-ZrO2 system: An experimental study. in International Journal of Materials Research. 2006;97(5):579-583.
doi:10.3139/146.101274 .

Zec, Slavica, Bošković, Snežana B., Popovic, N, Bogdanov, Žarko, "Subsolidus phase equilibria in the CeO2-x-SiO2-ZrO2 system: An experimental study" in International Journal of Materials Research, 97, no. 5 (2006):579-583,
https://doi.org/10.3139/146.101274 . .

TY  - JOUR
AU  - Zec, Slavica
AU  - Bošković, Snežana B.
AU  - Bogdanov, Žarko
AU  - Popovic, N
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2939
AB  - Studying solid state reaction between mechanically activated oxide powders of CeO2 and quartz-SiO2, we obtained directly during heat treatment, the low temperature polymorph of Ce2Si2O7 instead of the high temperature polymorph formed in non-activated oxides mixture. The mixture with composition corresponded to Ce2Si2O7 stoichiometry was mechanically activated by milling in high energetic vibratory mill for 2-120 min. Heating was done in an Astro furnace in a flowing argon atmosphere at 1200-1550 degrees C for 1 h while the specimens were furnace cooled. Crystallite size, lattice distortion and phases identification was performed by X-ray powder diffraction (XRD) analysis. Microstructure characterization of the mixtures was done using scanning electron microscopy (SEM). Low temperature polymorph of Ce2Si2O7 was obtained in activated mixtures at temperatures below 1400 degrees C. (c) 2005 Elsevier B.V All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Low temperature Ce2Si2O7 polymorph formed by mechanical activation
VL  - 95
IS  - 1
SP  - 150
EP  - 153
DO  - 10.1016/j.matchemphys.2005.05.036
ER  - 

@article{
author = "Zec, Slavica and Bošković, Snežana B. and Bogdanov, Žarko and Popovic, N",
year = "2006",
abstract = "Studying solid state reaction between mechanically activated oxide powders of CeO2 and quartz-SiO2, we obtained directly during heat treatment, the low temperature polymorph of Ce2Si2O7 instead of the high temperature polymorph formed in non-activated oxides mixture. The mixture with composition corresponded to Ce2Si2O7 stoichiometry was mechanically activated by milling in high energetic vibratory mill for 2-120 min. Heating was done in an Astro furnace in a flowing argon atmosphere at 1200-1550 degrees C for 1 h while the specimens were furnace cooled. Crystallite size, lattice distortion and phases identification was performed by X-ray powder diffraction (XRD) analysis. Microstructure characterization of the mixtures was done using scanning electron microscopy (SEM). Low temperature polymorph of Ce2Si2O7 was obtained in activated mixtures at temperatures below 1400 degrees C. (c) 2005 Elsevier B.V All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Low temperature Ce2Si2O7 polymorph formed by mechanical activation",
volume = "95",
number = "1",
pages = "150-153",
doi = "10.1016/j.matchemphys.2005.05.036"
}

Zec, S., Bošković, S. B., Bogdanov, Ž.,& Popovic, N.. (2006). Low temperature Ce2Si2O7 polymorph formed by mechanical activation. in Materials Chemistry and Physics, 95(1), 150-153.
https://doi.org/10.1016/j.matchemphys.2005.05.036

Zec S, Bošković SB, Bogdanov Ž, Popovic N. Low temperature Ce2Si2O7 polymorph formed by mechanical activation. in Materials Chemistry and Physics. 2006;95(1):150-153.
doi:10.1016/j.matchemphys.2005.05.036 .

Zec, Slavica, Bošković, Snežana B., Bogdanov, Žarko, Popovic, N, "Low temperature Ce2Si2O7 polymorph formed by mechanical activation" in Materials Chemistry and Physics, 95, no. 1 (2006):150-153,
https://doi.org/10.1016/j.matchemphys.2005.05.036 . .

TY  - JOUR
AU  - Popovic, N
AU  - Bogdanov, Žarko
AU  - Goncić, Bratislav
AU  - Zec, Slavica
AU  - Rakočević, Zlatko Lj.
AU  - Zlatanovic, M
AU  - Peruško, Davor
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6452
AB  - The low energy broad argon ion beam (1.35-2.0) keV was used for sputtering of a Ti target in an atmosphere of nitrogen gas to form TiN films. During deposition the growing thin film was under argon ion irradiation from the beam periphery. The influence of the ion beam energy (E-b) and average energy delivered by assisting ions to condensing film atoms (E-n) on TiN film properties was investigated. The titanium nitride thin films were deposited at a low working pressure of 1 x 10(-4) mbar and at ambient substrate temperature. XRD analysis revealed the formation of a delta-TiN phase with preferred (220) orientation for the stoichiometric composition of TiN films (RBS). The increase of both the intensity of the (220) peak and TiN film crystallite dimension with increasing the energy of Ti target bombarding Ar+ ions (E-b) was observed. By increasing the average ion energy per deposited metal atom (E-n) the (220) peak intensity and crystallite dimension decrease and a complete loss of (220) orientation at E-n close to 162 eV/at was found. In the range of E-n considered, the TiN films grain size decreases leading to the nanostructured surface as revealed by the STM analysis. The incident angle and energy of the assisted bombarding strongly influence the film-preferred orientation and sub-microstructure. (C) 2003 Elsevier B.V. All rights reserved.
T2  - Thin Solid Films
T1  - TiN thin films deposited by ion beam sputtering: effects of energetic particles bombardment
VL  - 459
IS  - 1-2
SP  - 286
EP  - 291
DO  - 10.1016/j.tsf.2003.12.130
ER  - 

@article{
author = "Popovic, N and Bogdanov, Žarko and Goncić, Bratislav and Zec, Slavica and Rakočević, Zlatko Lj. and Zlatanovic, M and Peruško, Davor",
year = "2004",
abstract = "The low energy broad argon ion beam (1.35-2.0) keV was used for sputtering of a Ti target in an atmosphere of nitrogen gas to form TiN films. During deposition the growing thin film was under argon ion irradiation from the beam periphery. The influence of the ion beam energy (E-b) and average energy delivered by assisting ions to condensing film atoms (E-n) on TiN film properties was investigated. The titanium nitride thin films were deposited at a low working pressure of 1 x 10(-4) mbar and at ambient substrate temperature. XRD analysis revealed the formation of a delta-TiN phase with preferred (220) orientation for the stoichiometric composition of TiN films (RBS). The increase of both the intensity of the (220) peak and TiN film crystallite dimension with increasing the energy of Ti target bombarding Ar+ ions (E-b) was observed. By increasing the average ion energy per deposited metal atom (E-n) the (220) peak intensity and crystallite dimension decrease and a complete loss of (220) orientation at E-n close to 162 eV/at was found. In the range of E-n considered, the TiN films grain size decreases leading to the nanostructured surface as revealed by the STM analysis. The incident angle and energy of the assisted bombarding strongly influence the film-preferred orientation and sub-microstructure. (C) 2003 Elsevier B.V. All rights reserved.",
journal = "Thin Solid Films",
title = "TiN thin films deposited by ion beam sputtering: effects of energetic particles bombardment",
volume = "459",
number = "1-2",
pages = "286-291",
doi = "10.1016/j.tsf.2003.12.130"
}

Popovic, N., Bogdanov, Ž., Goncić, B., Zec, S., Rakočević, Z. Lj., Zlatanovic, M.,& Peruško, D.. (2004). TiN thin films deposited by ion beam sputtering: effects of energetic particles bombardment. in Thin Solid Films, 459(1-2), 286-291.
https://doi.org/10.1016/j.tsf.2003.12.130

Popovic N, Bogdanov Ž, Goncić B, Zec S, Rakočević ZL, Zlatanovic M, Peruško D. TiN thin films deposited by ion beam sputtering: effects of energetic particles bombardment. in Thin Solid Films. 2004;459(1-2):286-291.
doi:10.1016/j.tsf.2003.12.130 .

Popovic, N, Bogdanov, Žarko, Goncić, Bratislav, Zec, Slavica, Rakočević, Zlatko Lj., Zlatanovic, M, Peruško, Davor, "TiN thin films deposited by ion beam sputtering: effects of energetic particles bombardment" in Thin Solid Films, 459, no. 1-2 (2004):286-291,
https://doi.org/10.1016/j.tsf.2003.12.130 . .

TY  - JOUR
AU  - Kaluđerović, Branka V.
AU  - Trtica, Milan
AU  - Sreckovic, M
AU  - Babić, Biljana M.
AU  - Zec, Slavica
AU  - Bogdanov, Žarko
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6432
AB  - The interaction of a Transversely Excited Atmospheric (TEA) CO2 laser (pulse duration less than 2 mus) with carbon and activated carbon cloth was investigated. The investigations have shown that carbon cloth had been physically modified by the TEA CO2 laser. The type of modification strongly depends on laser working regime, such as energy density of the laser beam, etc. The morphology transformations induced by interaction with TEA CO2 laser beams resulted in different specific surface area of activated carbon cloth. Also, laser interaction induced minor changes in crystallographic structure parameters.
T2  - Materials Science Forum
T1  - Modification of carbon cloth by interaction with pulsed TEA CO2 laser
VL  - 453-454
SP  - 355
EP  - 359
DO  - 10.4028/www.scientific.net/MSF.453-454.355
ER  - 

@article{
author = "Kaluđerović, Branka V. and Trtica, Milan and Sreckovic, M and Babić, Biljana M. and Zec, Slavica and Bogdanov, Žarko",
year = "2004",
abstract = "The interaction of a Transversely Excited Atmospheric (TEA) CO2 laser (pulse duration less than 2 mus) with carbon and activated carbon cloth was investigated. The investigations have shown that carbon cloth had been physically modified by the TEA CO2 laser. The type of modification strongly depends on laser working regime, such as energy density of the laser beam, etc. The morphology transformations induced by interaction with TEA CO2 laser beams resulted in different specific surface area of activated carbon cloth. Also, laser interaction induced minor changes in crystallographic structure parameters.",
journal = "Materials Science Forum",
title = "Modification of carbon cloth by interaction with pulsed TEA CO2 laser",
volume = "453-454",
pages = "355-359",
doi = "10.4028/www.scientific.net/MSF.453-454.355"
}

Kaluđerović, B. V., Trtica, M., Sreckovic, M., Babić, B. M., Zec, S.,& Bogdanov, Ž.. (2004). Modification of carbon cloth by interaction with pulsed TEA CO2 laser. in Materials Science Forum, 453-454, 355-359.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.355

Kaluđerović BV, Trtica M, Sreckovic M, Babić BM, Zec S, Bogdanov Ž. Modification of carbon cloth by interaction with pulsed TEA CO2 laser. in Materials Science Forum. 2004;453-454:355-359.
doi:10.4028/www.scientific.net/MSF.453-454.355 .

Kaluđerović, Branka V., Trtica, Milan, Sreckovic, M, Babić, Biljana M., Zec, Slavica, Bogdanov, Žarko, "Modification of carbon cloth by interaction with pulsed TEA CO2 laser" in Materials Science Forum, 453-454 (2004):355-359,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.355 . .

TY  - JOUR
AU  - Zlatanovic, M
AU  - Popovic, N
AU  - Bogdanov, Žarko
AU  - Kunosic, A
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6419
AB  - Quenched and tempered samples made of plain carbon steel C 15 were salt bath nitrided at 580(0)C for 210 minutes and subsequently water quenched. The nitrided samples were half cut to obtain ail untreated surface that was polished before further processing. Both, salt bath nitrocarburized and untreated surfaces, were subjected to oxygen containing gas mixture glow discharge in the same bath. The plasma pulse power supply generated 16.6 kHz pulses with 0.95% duty cycle at a temperature of 480(0)C and pressure of 400 Pa for 60 minutes. The thickness of compound surface layer was measured by calotest method, while optical microscopy and SEM analyses were used to investigate the modified surface zone structure and morphology. The phase composition of obtained surface structure was analyzed by XRD. It was found that the salt bath treatment may produce the single epsilon phase or the single gamma zone on the plain carbon steel specimens depending on the active species concentration in the salt bath. The oxide layer phase formed depends on the applied surface pretreatment.
T2  - Materials Science Forum
T1  - Plasma oxidation of salt bath nitrided C 15 steel samples
VL  - 453-454
SP  - 61
EP  - 66
DO  - 10.4028/www.scientific.net/MSF.453-454.61
ER  - 

@article{
author = "Zlatanovic, M and Popovic, N and Bogdanov, Žarko and Kunosic, A",
year = "2004",
abstract = "Quenched and tempered samples made of plain carbon steel C 15 were salt bath nitrided at 580(0)C for 210 minutes and subsequently water quenched. The nitrided samples were half cut to obtain ail untreated surface that was polished before further processing. Both, salt bath nitrocarburized and untreated surfaces, were subjected to oxygen containing gas mixture glow discharge in the same bath. The plasma pulse power supply generated 16.6 kHz pulses with 0.95% duty cycle at a temperature of 480(0)C and pressure of 400 Pa for 60 minutes. The thickness of compound surface layer was measured by calotest method, while optical microscopy and SEM analyses were used to investigate the modified surface zone structure and morphology. The phase composition of obtained surface structure was analyzed by XRD. It was found that the salt bath treatment may produce the single epsilon phase or the single gamma zone on the plain carbon steel specimens depending on the active species concentration in the salt bath. The oxide layer phase formed depends on the applied surface pretreatment.",
journal = "Materials Science Forum",
title = "Plasma oxidation of salt bath nitrided C 15 steel samples",
volume = "453-454",
pages = "61-66",
doi = "10.4028/www.scientific.net/MSF.453-454.61"
}

Zlatanovic, M., Popovic, N., Bogdanov, Ž.,& Kunosic, A.. (2004). Plasma oxidation of salt bath nitrided C 15 steel samples. in Materials Science Forum, 453-454, 61-66.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.61

Zlatanovic M, Popovic N, Bogdanov Ž, Kunosic A. Plasma oxidation of salt bath nitrided C 15 steel samples. in Materials Science Forum. 2004;453-454:61-66.
doi:10.4028/www.scientific.net/MSF.453-454.61 .

Zlatanovic, M, Popovic, N, Bogdanov, Žarko, Kunosic, A, "Plasma oxidation of salt bath nitrided C 15 steel samples" in Materials Science Forum, 453-454 (2004):61-66,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.61 . .

TY  - JOUR
AU  - Zlatanovic, M
AU  - Popovic, N
AU  - Bogdanov, Žarko
AU  - Zlatanovic, S
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6403
AB  - Pulse plasma oxidation of untreated, salt bath nitrocarburized and plasma nitrided/nitrocarburized samples made of hot work steel grade H11 was investigated. A continuous multi-step plasma processing was performed consisting of a half an hour plasma nitriding at 520 degreesC followed by 3.5 h nitrocarburizing at the same temperature and by a subsequent post-oxidation in a low current density H2O glow discharge during 45 min at 450 degreesC. The salt bath nitrocarburizing was carried out at a temperature of 580 degreesC for 210 min and was followed by the oil quench. In order to compare the oxide layer growth on the base material and on the epsilon-Fe-2(N,C)(1-x) layer, the salt bath treated sample. was half cut and plasma post-oxidized in a 80% H2O-20% H-2 glow discharge for 45 min at the temperature of 480 degreesC. In plasma processing pulse power supply was used with 57 mus pulse duration and 3 mus pulse pause. The surface structures were analyzed by optical microscopy, SEM and XRD, while Vickers microhardness test was used for measuring the surface microhardness and microhardness distribution over the sample cross sections. On the nitrocarburized surfaces XRD analyses revealed the existence of a superficial magnetite oxide layer and the presence of a e phase and a small amount of gamma phase, while a hematite Fe2O3 layer was formed on untreated sample surface. (C) 2003 Elsevier B.V. All rights reserved.
T2  - Surface and Coatings Technology
T1  - Plasma post oxidation of nitrocarburized hot work steel samples
VL  - 177
SP  - 277
EP  - 283
DO  - 10.1016/j.surfcoat.2003.09.012
ER  - 

@article{
author = "Zlatanovic, M and Popovic, N and Bogdanov, Žarko and Zlatanovic, S",
year = "2004",
abstract = "Pulse plasma oxidation of untreated, salt bath nitrocarburized and plasma nitrided/nitrocarburized samples made of hot work steel grade H11 was investigated. A continuous multi-step plasma processing was performed consisting of a half an hour plasma nitriding at 520 degreesC followed by 3.5 h nitrocarburizing at the same temperature and by a subsequent post-oxidation in a low current density H2O glow discharge during 45 min at 450 degreesC. The salt bath nitrocarburizing was carried out at a temperature of 580 degreesC for 210 min and was followed by the oil quench. In order to compare the oxide layer growth on the base material and on the epsilon-Fe-2(N,C)(1-x) layer, the salt bath treated sample. was half cut and plasma post-oxidized in a 80% H2O-20% H-2 glow discharge for 45 min at the temperature of 480 degreesC. In plasma processing pulse power supply was used with 57 mus pulse duration and 3 mus pulse pause. The surface structures were analyzed by optical microscopy, SEM and XRD, while Vickers microhardness test was used for measuring the surface microhardness and microhardness distribution over the sample cross sections. On the nitrocarburized surfaces XRD analyses revealed the existence of a superficial magnetite oxide layer and the presence of a e phase and a small amount of gamma phase, while a hematite Fe2O3 layer was formed on untreated sample surface. (C) 2003 Elsevier B.V. All rights reserved.",
journal = "Surface and Coatings Technology",
title = "Plasma post oxidation of nitrocarburized hot work steel samples",
volume = "177",
pages = "277-283",
doi = "10.1016/j.surfcoat.2003.09.012"
}

Zlatanovic, M., Popovic, N., Bogdanov, Ž.,& Zlatanovic, S.. (2004). Plasma post oxidation of nitrocarburized hot work steel samples. in Surface and Coatings Technology, 177, 277-283.
https://doi.org/10.1016/j.surfcoat.2003.09.012

Zlatanovic M, Popovic N, Bogdanov Ž, Zlatanovic S. Plasma post oxidation of nitrocarburized hot work steel samples. in Surface and Coatings Technology. 2004;177:277-283.
doi:10.1016/j.surfcoat.2003.09.012 .

Zlatanovic, M, Popovic, N, Bogdanov, Žarko, Zlatanovic, S, "Plasma post oxidation of nitrocarburized hot work steel samples" in Surface and Coatings Technology, 177 (2004):277-283,
https://doi.org/10.1016/j.surfcoat.2003.09.012 . .

TY  - JOUR
AU  - Zlantanovic, M
AU  - Popovic, N
AU  - Bogdanov, Žarko
PY  - 2004
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6483
AB  - Duplex surface treatments of steel products are known to enhance fatigue strength, tribological properties, and corrosion resistance. In combined nitriding/coating deposition or nitriding/oxidation processes, a precise control of all steps of process parameters is necessary to get the required surface architecture. The process parameters are specific for different steel grades, which require detailed investigations and surface treatment of different steel-grade workpieces in separate charges. The samples made of steel grades AISI C 1045, 4140, and H 11 were salt bath and pulse plasma-nitrided, and untreated and surface treated samples were plasma-postoxidized. The Vickerss method was used for surface microhardness and depth profiling measurements, while the microstructure and surface zone morphology were examined by optical microscopy and scanning electron microscopy (SEM). The surface zone phase composition was analyzed by X-ray diffraction (XRD) method using CuKalpha radiation, and ball-grinding technique was used to measure the compound zone thickness. It was demonstrated that a low-friction, chemically stable, single-phase magnetite Fe3O4 superficial layer can be formed by plasma postoxidation of various steel-grade substrates in the same batch. Based on experiments performed on different steel-grade substrates, a source drain model was proposed to predict the phase composition of nitrided and postoxidized selected steel-grade samples. (C) 2004 Elsevier B.V. All rights reserved.
T2  - Surface and Coatings Technology
T1  - Formation of magnetite overlayer on nitrocarburized low-alloy steel by plasma postoxidation
VL  - 188
SP  - 307
EP  - 313
DO  - 10.1016/j.surfcoat.2004.08.049
ER  - 

@article{
author = "Zlantanovic, M and Popovic, N and Bogdanov, Žarko",
year = "2004",
abstract = "Duplex surface treatments of steel products are known to enhance fatigue strength, tribological properties, and corrosion resistance. In combined nitriding/coating deposition or nitriding/oxidation processes, a precise control of all steps of process parameters is necessary to get the required surface architecture. The process parameters are specific for different steel grades, which require detailed investigations and surface treatment of different steel-grade workpieces in separate charges. The samples made of steel grades AISI C 1045, 4140, and H 11 were salt bath and pulse plasma-nitrided, and untreated and surface treated samples were plasma-postoxidized. The Vickerss method was used for surface microhardness and depth profiling measurements, while the microstructure and surface zone morphology were examined by optical microscopy and scanning electron microscopy (SEM). The surface zone phase composition was analyzed by X-ray diffraction (XRD) method using CuKalpha radiation, and ball-grinding technique was used to measure the compound zone thickness. It was demonstrated that a low-friction, chemically stable, single-phase magnetite Fe3O4 superficial layer can be formed by plasma postoxidation of various steel-grade substrates in the same batch. Based on experiments performed on different steel-grade substrates, a source drain model was proposed to predict the phase composition of nitrided and postoxidized selected steel-grade samples. (C) 2004 Elsevier B.V. All rights reserved.",
journal = "Surface and Coatings Technology",
title = "Formation of magnetite overlayer on nitrocarburized low-alloy steel by plasma postoxidation",
volume = "188",
pages = "307-313",
doi = "10.1016/j.surfcoat.2004.08.049"
}

Zlantanovic, M., Popovic, N.,& Bogdanov, Ž.. (2004). Formation of magnetite overlayer on nitrocarburized low-alloy steel by plasma postoxidation. in Surface and Coatings Technology, 188, 307-313.
https://doi.org/10.1016/j.surfcoat.2004.08.049

Zlantanovic M, Popovic N, Bogdanov Ž. Formation of magnetite overlayer on nitrocarburized low-alloy steel by plasma postoxidation. in Surface and Coatings Technology. 2004;188:307-313.
doi:10.1016/j.surfcoat.2004.08.049 .

Zlantanovic, M, Popovic, N, Bogdanov, Žarko, "Formation of magnetite overlayer on nitrocarburized low-alloy steel by plasma postoxidation" in Surface and Coatings Technology, 188 (2004):307-313,
https://doi.org/10.1016/j.surfcoat.2004.08.049 . .

TY  - JOUR
AU  - Ristić, Gordana
AU  - Bogdanov, Žarko
AU  - Zec, Slavica
AU  - Romčević, Nebojša Ž.
AU  - Dohcevic-Mitrovic, Z
AU  - Miljanić, Šćepan S.
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2629
AB  - Diamond coatings were deposited onto different substrates (Cu, Si, WC-Co, Mo) by hot-filament chemical vapor deposition (CVD). Characterization of the obtained coatings was performed using scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis, Raman spectroscopy and Fourier transform infrared reflection (FTIR) spectroscopy. The results and observed differences are discussed from the aspect of the chemical nature of the substrate and its reactivity with a gaseous medium. 2003 Elsevier Science B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Effect of the substrate material on diamond CVD coating properties
VL  - 80
IS  - 2
SP  - 529
EP  - 536
DO  - 10.1016/S0254-0584(03)00094-4
ER  - 

@article{
author = "Ristić, Gordana and Bogdanov, Žarko and Zec, Slavica and Romčević, Nebojša Ž. and Dohcevic-Mitrovic, Z and Miljanić, Šćepan S.",
year = "2003",
abstract = "Diamond coatings were deposited onto different substrates (Cu, Si, WC-Co, Mo) by hot-filament chemical vapor deposition (CVD). Characterization of the obtained coatings was performed using scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis, Raman spectroscopy and Fourier transform infrared reflection (FTIR) spectroscopy. The results and observed differences are discussed from the aspect of the chemical nature of the substrate and its reactivity with a gaseous medium. 2003 Elsevier Science B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Effect of the substrate material on diamond CVD coating properties",
volume = "80",
number = "2",
pages = "529-536",
doi = "10.1016/S0254-0584(03)00094-4"
}

Ristić, G., Bogdanov, Ž., Zec, S., Romčević, N. Ž., Dohcevic-Mitrovic, Z.,& Miljanić, Š. S.. (2003). Effect of the substrate material on diamond CVD coating properties. in Materials Chemistry and Physics, 80(2), 529-536.
https://doi.org/10.1016/S0254-0584(03)00094-4

Ristić G, Bogdanov Ž, Zec S, Romčević NŽ, Dohcevic-Mitrovic Z, Miljanić ŠS. Effect of the substrate material on diamond CVD coating properties. in Materials Chemistry and Physics. 2003;80(2):529-536.
doi:10.1016/S0254-0584(03)00094-4 .

Ristić, Gordana, Bogdanov, Žarko, Zec, Slavica, Romčević, Nebojša Ž., Dohcevic-Mitrovic, Z, Miljanić, Šćepan S., "Effect of the substrate material on diamond CVD coating properties" in Materials Chemistry and Physics, 80, no. 2 (2003):529-536,
https://doi.org/10.1016/S0254-0584(03)00094-4 . .

TY  - JOUR
AU  - Goncić, Bratislav
AU  - Popovic, N
AU  - Bogdanov, Žarko
AU  - Zec, Slavica
AU  - Zlatanovic, M
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6350
AB  - The method and parameters of TiN film deposition processes are of dominant influence on the film growth microstructure and its physical properties. One of the PVD methods is the low energy ion beam reactive sputter deposition that offers the changes in the film properties by means of changing the beam parameters such as energy, divergence and current density. In this work, a laboratory made, broad beam, argon ion source was used for the reactive sputter deposition of TiN, thin films onto the glass substrates at ambient temperature. At constant argon beam energy (2keV), partial pressure of nitrogen (up to 6.6x10(-6) mbar), the substrate ion current and residual gas pressure were changed. The film deposition rate and thickness were controlled in situ by means of a light sensitive device placed on the rear side of the glass substrate. The physical properties of films: color, electrical resistivity and grain size, were correlated with the deposition parameters. High energy ion bombardment of growing film, relatively small ion to atom flux ratio up to 0.04, and low working pressure of 10(-5) mbar enabled the formation of a strong (220) preferred orientation rarely obtained for TiNx thin films.
T2  - Materials Science Forum
T1  - Low-energy broad-beam sputter deposition of TiNx thin films
VL  - 413
SP  - 159
EP  - 164
UR  - https://hdl.handle.net/21.15107/rcub_vinar_6350
ER  - 

@article{
author = "Goncić, Bratislav and Popovic, N and Bogdanov, Žarko and Zec, Slavica and Zlatanovic, M",
year = "2003",
abstract = "The method and parameters of TiN film deposition processes are of dominant influence on the film growth microstructure and its physical properties. One of the PVD methods is the low energy ion beam reactive sputter deposition that offers the changes in the film properties by means of changing the beam parameters such as energy, divergence and current density. In this work, a laboratory made, broad beam, argon ion source was used for the reactive sputter deposition of TiN, thin films onto the glass substrates at ambient temperature. At constant argon beam energy (2keV), partial pressure of nitrogen (up to 6.6x10(-6) mbar), the substrate ion current and residual gas pressure were changed. The film deposition rate and thickness were controlled in situ by means of a light sensitive device placed on the rear side of the glass substrate. The physical properties of films: color, electrical resistivity and grain size, were correlated with the deposition parameters. High energy ion bombardment of growing film, relatively small ion to atom flux ratio up to 0.04, and low working pressure of 10(-5) mbar enabled the formation of a strong (220) preferred orientation rarely obtained for TiNx thin films.",
journal = "Materials Science Forum",
title = "Low-energy broad-beam sputter deposition of TiNx thin films",
volume = "413",
pages = "159-164",
url = "https://hdl.handle.net/21.15107/rcub_vinar_6350"
}

Goncić, B., Popovic, N., Bogdanov, Ž., Zec, S.,& Zlatanovic, M.. (2003). Low-energy broad-beam sputter deposition of TiNx thin films. in Materials Science Forum, 413, 159-164.
https://hdl.handle.net/21.15107/rcub_vinar_6350

Goncić B, Popovic N, Bogdanov Ž, Zec S, Zlatanovic M. Low-energy broad-beam sputter deposition of TiNx thin films. in Materials Science Forum. 2003;413:159-164.
https://hdl.handle.net/21.15107/rcub_vinar_6350 .

Goncić, Bratislav, Popovic, N, Bogdanov, Žarko, Zec, Slavica, Zlatanovic, M, "Low-energy broad-beam sputter deposition of TiNx thin films" in Materials Science Forum, 413 (2003):159-164,
https://hdl.handle.net/21.15107/rcub_vinar_6350 .

TY  - JOUR
AU  - Zlatanovic, M
AU  - Popovic, N
AU  - Bogdanov, Žarko
AU  - Zlatanovic, S
PY  - 2003
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6382
AB  - Plasma nitrided/nitrocarburized samples made of steel grade DIN C15 were post oxidized in a mixtures of H-2 and O-2 gases using pulse power supply. Plasma nitrocarburizing post-oxidation were performed at 520 degreesC. The applied process is a combination of plasma nitriding, plasma nitrocarburizing and plasma-oxidation of the compound layer. Pulse plasma was used in all process steps at 5 kHz frequency and pause/pulse ratio 1:19. The XRD examination revealed the existence of the compound zone composed of of the gamma or gamma+ epsilon carbonitride phase with a thin overlayer of magnetite Fe3O4. The architecture of formed surface structure provides the unique mechanical and tribological properties with the diffusion zone responsible for load bearing capacity, wear and fatigue resistance and the double compound layer resistant to wear and corrosion. The results of Vickers microhardness measurements, optical microscopy, XRD and SEM analyses were presented. The obtained surface structures were compared with the samples salt bath nitrided in a conventional industrial unit. (C) 2003 Elsevier Science B.V. All rights reserved.
T2  - Surface and Coatings Technology
T1  - Pulsed plasma-oxidation of nitrided steel samples
VL  - 174
SP  - 1220
EP  - 1224
DO  - 10.1016/S0257-8972(03)00590-5
ER  - 

@article{
author = "Zlatanovic, M and Popovic, N and Bogdanov, Žarko and Zlatanovic, S",
year = "2003",
abstract = "Plasma nitrided/nitrocarburized samples made of steel grade DIN C15 were post oxidized in a mixtures of H-2 and O-2 gases using pulse power supply. Plasma nitrocarburizing post-oxidation were performed at 520 degreesC. The applied process is a combination of plasma nitriding, plasma nitrocarburizing and plasma-oxidation of the compound layer. Pulse plasma was used in all process steps at 5 kHz frequency and pause/pulse ratio 1:19. The XRD examination revealed the existence of the compound zone composed of of the gamma or gamma+ epsilon carbonitride phase with a thin overlayer of magnetite Fe3O4. The architecture of formed surface structure provides the unique mechanical and tribological properties with the diffusion zone responsible for load bearing capacity, wear and fatigue resistance and the double compound layer resistant to wear and corrosion. The results of Vickers microhardness measurements, optical microscopy, XRD and SEM analyses were presented. The obtained surface structures were compared with the samples salt bath nitrided in a conventional industrial unit. (C) 2003 Elsevier Science B.V. All rights reserved.",
journal = "Surface and Coatings Technology",
title = "Pulsed plasma-oxidation of nitrided steel samples",
volume = "174",
pages = "1220-1224",
doi = "10.1016/S0257-8972(03)00590-5"
}

Zlatanovic, M., Popovic, N., Bogdanov, Ž.,& Zlatanovic, S.. (2003). Pulsed plasma-oxidation of nitrided steel samples. in Surface and Coatings Technology, 174, 1220-1224.
https://doi.org/10.1016/S0257-8972(03)00590-5

Zlatanovic M, Popovic N, Bogdanov Ž, Zlatanovic S. Pulsed plasma-oxidation of nitrided steel samples. in Surface and Coatings Technology. 2003;174:1220-1224.
doi:10.1016/S0257-8972(03)00590-5 .

Zlatanovic, M, Popovic, N, Bogdanov, Žarko, Zlatanovic, S, "Pulsed plasma-oxidation of nitrided steel samples" in Surface and Coatings Technology, 174 (2003):1220-1224,
https://doi.org/10.1016/S0257-8972(03)00590-5 . .

TY  - JOUR
AU  - Popovic, N
AU  - Bogdanov, Žarko
AU  - Goncić, Bratislav
AU  - Zec, Slavica
AU  - Rakočević, Zlatko Lj.
PY  - 1999
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6271
AB  - Nickel films were deposited from a vapour phase (e-gun source) onto amorphous glass substrates at room temperature during a simultaneous bombardment with nitrogen ions at low pressure (4 x 10(-2) Pa). Under a constant partial pressure of nitrogen and negative substrate bias voltages the effect of bombardment intensity on the texture and morphology of Ni films (about 1 mu m) has been investigated by XRD and STM methods. The films under investigation exhibit a Variable degree of (200) preferred orientation by changing the ion to atom flux ratio (IAR) from 0.03 to 0.3. It was found that complete (200) texture was achieved for an IAR of about 0.1 and that further increase of IAR induces the decrease of preferred orientation. X-ray diffraction in combination with profiling by a 1 keV argon ion beam bombardment has been used for in depth texture and grain size analysis. It has been shown that oriented growth, grain size and morphology correlate with changes of bombardment intensity during the deposition as well as with the substrate bias potential. (C) 1999 Elsevier Science S.A. All rights reserved.
T2  - Thin Solid Films
T1  - The influence of ion bombardment intensity during deposition on nickel films microstructure
VL  - 343
SP  - 75
EP  - 80
DO  - 10.1016/S0040-6090(98)01578-8
ER  - 

@article{
author = "Popovic, N and Bogdanov, Žarko and Goncić, Bratislav and Zec, Slavica and Rakočević, Zlatko Lj.",
year = "1999",
abstract = "Nickel films were deposited from a vapour phase (e-gun source) onto amorphous glass substrates at room temperature during a simultaneous bombardment with nitrogen ions at low pressure (4 x 10(-2) Pa). Under a constant partial pressure of nitrogen and negative substrate bias voltages the effect of bombardment intensity on the texture and morphology of Ni films (about 1 mu m) has been investigated by XRD and STM methods. The films under investigation exhibit a Variable degree of (200) preferred orientation by changing the ion to atom flux ratio (IAR) from 0.03 to 0.3. It was found that complete (200) texture was achieved for an IAR of about 0.1 and that further increase of IAR induces the decrease of preferred orientation. X-ray diffraction in combination with profiling by a 1 keV argon ion beam bombardment has been used for in depth texture and grain size analysis. It has been shown that oriented growth, grain size and morphology correlate with changes of bombardment intensity during the deposition as well as with the substrate bias potential. (C) 1999 Elsevier Science S.A. All rights reserved.",
journal = "Thin Solid Films",
title = "The influence of ion bombardment intensity during deposition on nickel films microstructure",
volume = "343",
pages = "75-80",
doi = "10.1016/S0040-6090(98)01578-8"
}

Popovic, N., Bogdanov, Ž., Goncić, B., Zec, S.,& Rakočević, Z. Lj.. (1999). The influence of ion bombardment intensity during deposition on nickel films microstructure. in Thin Solid Films, 343, 75-80.
https://doi.org/10.1016/S0040-6090(98)01578-8

Popovic N, Bogdanov Ž, Goncić B, Zec S, Rakočević ZL. The influence of ion bombardment intensity during deposition on nickel films microstructure. in Thin Solid Films. 1999;343:75-80.
doi:10.1016/S0040-6090(98)01578-8 .

Popovic, N, Bogdanov, Žarko, Goncić, Bratislav, Zec, Slavica, Rakočević, Zlatko Lj., "The influence of ion bombardment intensity during deposition on nickel films microstructure" in Thin Solid Films, 343 (1999):75-80,
https://doi.org/10.1016/S0040-6090(98)01578-8 . .

TY  - JOUR
AU  - Ristić, Gordana
AU  - Petkovska, Ljubica T.
AU  - Bogdanov, Žarko
AU  - Zec, Slavica
AU  - Miljanić, Šćepan S.
PY  - 1998
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2129
AB  - A tungsten filament, 0.12 mm in diameter, was conditioned by heating in a mixture of methane and hydrogen of three different concentration ratios. The filament was heated by an electric current. The procedure was carried out stepwise keeping either the voltage or the temperature of the filament constant. Changes in the filament material were monitored by resistance and temperature measurements. The chemical composition was checked using X-ray diffraction (XRD) analysis. The final state of the filament was investigated and photographed using the scanning-electron microscopy (SEM) technique.
T2  - Journal of the Serbian Chemical Society
T1  - Conditioning of the filament for diamond deposition by hot-filament chemical vapour deposition method
VL  - 63
IS  - 3
SP  - 231
EP  - 235
UR  - https://hdl.handle.net/21.15107/rcub_vinar_2129
ER  - 

@article{
author = "Ristić, Gordana and Petkovska, Ljubica T. and Bogdanov, Žarko and Zec, Slavica and Miljanić, Šćepan S.",
year = "1998",
abstract = "A tungsten filament, 0.12 mm in diameter, was conditioned by heating in a mixture of methane and hydrogen of three different concentration ratios. The filament was heated by an electric current. The procedure was carried out stepwise keeping either the voltage or the temperature of the filament constant. Changes in the filament material were monitored by resistance and temperature measurements. The chemical composition was checked using X-ray diffraction (XRD) analysis. The final state of the filament was investigated and photographed using the scanning-electron microscopy (SEM) technique.",
journal = "Journal of the Serbian Chemical Society",
title = "Conditioning of the filament for diamond deposition by hot-filament chemical vapour deposition method",
volume = "63",
number = "3",
pages = "231-235",
url = "https://hdl.handle.net/21.15107/rcub_vinar_2129"
}

Ristić, G., Petkovska, L. T., Bogdanov, Ž., Zec, S.,& Miljanić, Š. S.. (1998). Conditioning of the filament for diamond deposition by hot-filament chemical vapour deposition method. in Journal of the Serbian Chemical Society, 63(3), 231-235.
https://hdl.handle.net/21.15107/rcub_vinar_2129

Ristić G, Petkovska LT, Bogdanov Ž, Zec S, Miljanić ŠS. Conditioning of the filament for diamond deposition by hot-filament chemical vapour deposition method. in Journal of the Serbian Chemical Society. 1998;63(3):231-235.
https://hdl.handle.net/21.15107/rcub_vinar_2129 .

Ristić, Gordana, Petkovska, Ljubica T., Bogdanov, Žarko, Zec, Slavica, Miljanić, Šćepan S., "Conditioning of the filament for diamond deposition by hot-filament chemical vapour deposition method" in Journal of the Serbian Chemical Society, 63, no. 3 (1998):231-235,
https://hdl.handle.net/21.15107/rcub_vinar_2129 .