TY  - JOUR
AU  - Krstić, Ivan
AU  - Zec, Slavica
AU  - Lazarević, Vesna B.
AU  - Stanisavljević, Miodrag
AU  - Golubović, Tatjana
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=0350-820X1802139K
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7827
AB  - Galvanization process requires the use a large amount of water and produces wastewaters that are usually purified by conventional cost-effective procedure. This kind of treatment generates waste sludge which becomes a hazardous if is not properly stabilized. Hence, the aim of this paper is to investigate the characteristics of galvanic sludge through the inspection of its physicochemical parameters and consider stabilization of waste materials, including waste glass and aluminum slag by their conversion into an eco-designed material referred to as glass ceramics. The obtained products have been studied by X-ray diffraction (XRD). XRD analyses confirmed occurrence of chemical and phase transformations in treated galvanic sludge and binding of toxic metals (Al3+, Cr3+, Cu2+, Cd2+, Ni2+, Pb2+, Zn2+) into crystalline phases and very sTab. structure.
AB  - Процес галванизације захтева велику количину технолошке воде што има за последицу стварање отпадних вода, које се из економских разлога пречишћавају конвенционалним системима. Овим третманом настаје отпадни муљ који, уколико се адекватно не стабилизује, представља опасан отпад. У том смислу, у раду је извршена карактеризација галванског муља анализом физичкохемијских параметара компонената, а затим стабилизација ових отпадних материја, укључујући отпадно стакло и алуминијумску шљаку, превођењем у еко-синтеровани материјал стаклокерамика. Добијени производ анализиран је рендгенском дифракционом анализом (XRD). На основу XRD спектра потврђене су хемијско-фазне трансформације третираног галванског муља и везивање токсичних метала (Al3+, Cr3+, Cu2+, Cd2+, Ni2+, Pb2+, Zn2+) у веома стабилну кристалну структуру.
T2  - Science of Sintering
T1  - Use of sintering to immobilize toxic metals present in galvanic sludge into a stabile glass-ceramic structure
VL  - 50
IS  - 2
SP  - 139
EP  - 147
DO  - 10.2298/SOS1802139K
ER  - 

@article{
author = "Krstić, Ivan and Zec, Slavica and Lazarević, Vesna B. and Stanisavljević, Miodrag and Golubović, Tatjana",
year = "2018",
abstract = "Galvanization process requires the use a large amount of water and produces wastewaters that are usually purified by conventional cost-effective procedure. This kind of treatment generates waste sludge which becomes a hazardous if is not properly stabilized. Hence, the aim of this paper is to investigate the characteristics of galvanic sludge through the inspection of its physicochemical parameters and consider stabilization of waste materials, including waste glass and aluminum slag by their conversion into an eco-designed material referred to as glass ceramics. The obtained products have been studied by X-ray diffraction (XRD). XRD analyses confirmed occurrence of chemical and phase transformations in treated galvanic sludge and binding of toxic metals (Al3+, Cr3+, Cu2+, Cd2+, Ni2+, Pb2+, Zn2+) into crystalline phases and very sTab. structure., Процес галванизације захтева велику количину технолошке воде што има за последицу стварање отпадних вода, које се из економских разлога пречишћавају конвенционалним системима. Овим третманом настаје отпадни муљ који, уколико се адекватно не стабилизује, представља опасан отпад. У том смислу, у раду је извршена карактеризација галванског муља анализом физичкохемијских параметара компонената, а затим стабилизација ових отпадних материја, укључујући отпадно стакло и алуминијумску шљаку, превођењем у еко-синтеровани материјал стаклокерамика. Добијени производ анализиран је рендгенском дифракционом анализом (XRD). На основу XRD спектра потврђене су хемијско-фазне трансформације третираног галванског муља и везивање токсичних метала (Al3+, Cr3+, Cu2+, Cd2+, Ni2+, Pb2+, Zn2+) у веома стабилну кристалну структуру.",
journal = "Science of Sintering",
title = "Use of sintering to immobilize toxic metals present in galvanic sludge into a stabile glass-ceramic structure",
volume = "50",
number = "2",
pages = "139-147",
doi = "10.2298/SOS1802139K"
}

Krstić, I., Zec, S., Lazarević, V. B., Stanisavljević, M.,& Golubović, T.. (2018). Use of sintering to immobilize toxic metals present in galvanic sludge into a stabile glass-ceramic structure. in Science of Sintering, 50(2), 139-147.
https://doi.org/10.2298/SOS1802139K

Krstić I, Zec S, Lazarević VB, Stanisavljević M, Golubović T. Use of sintering to immobilize toxic metals present in galvanic sludge into a stabile glass-ceramic structure. in Science of Sintering. 2018;50(2):139-147.
doi:10.2298/SOS1802139K .

Krstić, Ivan, Zec, Slavica, Lazarević, Vesna B., Stanisavljević, Miodrag, Golubović, Tatjana, "Use of sintering to immobilize toxic metals present in galvanic sludge into a stabile glass-ceramic structure" in Science of Sintering, 50, no. 2 (2018):139-147,
https://doi.org/10.2298/SOS1802139K . .

TY  - JOUR
AU  - Jovanović, Milan T.
AU  - Ilić, Nenad
AU  - Cvijović-Alagić, Ivana
AU  - Maksimović, Vesna
AU  - Zec, Slavica
PY  - 2017
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/1833
AB  - Experimental results on processing, structural and mechanical characterization of a multilayer composite based on commercially pure aluminum foils were presented. A multilayer composite was produced by hot-rolling of anodized and non-anodized aluminum foils alternately sandwiched. In addition, the same process was applied for bonding of non-anodized foils. In both cases, obtained multilayer composites were compact and sound. In order to study composites microstructural evolution and mechanical properties, optical and scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffraction (XRD) analysis, hardness, tensile and three-point flexural tests were performed. Microstructural characterization confirmed that the rod-like particles distributed in parallel rows in the composite aluminum matrix with anodized foils correspond to Al2O3. Maximum and minimum peaks of oxygen and aluminum, respectively, suggest that after the final hot-rolling of composite with non-anodized foils, a small amount of coarser particles were formed at boundaries between foils. Hardness, strength, modulus of elasticity and flexural strength of both multilayer composites were much higher than those of pure aluminum, whereas ductility was significantly less. The composite with anodized foils exhibited the highest strength and modulus of elasticity, but lower ductility compared to composite processed from non-anodized foils. Fracture failure corresponded to the change of ductility.
T2  - Transactions of Nonferrous Metals Society of China
T1  - Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils
VL  - 27
IS  - 9
SP  - 1907
EP  - 1919
DO  - 10.1016/S1003-6326(17)60215-2
ER  - 

@article{
author = "Jovanović, Milan T. and Ilić, Nenad and Cvijović-Alagić, Ivana and Maksimović, Vesna and Zec, Slavica",
year = "2017",
abstract = "Experimental results on processing, structural and mechanical characterization of a multilayer composite based on commercially pure aluminum foils were presented. A multilayer composite was produced by hot-rolling of anodized and non-anodized aluminum foils alternately sandwiched. In addition, the same process was applied for bonding of non-anodized foils. In both cases, obtained multilayer composites were compact and sound. In order to study composites microstructural evolution and mechanical properties, optical and scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray diffraction (XRD) analysis, hardness, tensile and three-point flexural tests were performed. Microstructural characterization confirmed that the rod-like particles distributed in parallel rows in the composite aluminum matrix with anodized foils correspond to Al2O3. Maximum and minimum peaks of oxygen and aluminum, respectively, suggest that after the final hot-rolling of composite with non-anodized foils, a small amount of coarser particles were formed at boundaries between foils. Hardness, strength, modulus of elasticity and flexural strength of both multilayer composites were much higher than those of pure aluminum, whereas ductility was significantly less. The composite with anodized foils exhibited the highest strength and modulus of elasticity, but lower ductility compared to composite processed from non-anodized foils. Fracture failure corresponded to the change of ductility.",
journal = "Transactions of Nonferrous Metals Society of China",
title = "Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils",
volume = "27",
number = "9",
pages = "1907-1919",
doi = "10.1016/S1003-6326(17)60215-2"
}

Jovanović, M. T., Ilić, N., Cvijović-Alagić, I., Maksimović, V.,& Zec, S.. (2017). Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils. in Transactions of Nonferrous Metals Society of China, 27(9), 1907-1919.
https://doi.org/10.1016/S1003-6326(17)60215-2

Jovanović MT, Ilić N, Cvijović-Alagić I, Maksimović V, Zec S. Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils. in Transactions of Nonferrous Metals Society of China. 2017;27(9):1907-1919.
doi:10.1016/S1003-6326(17)60215-2 .

Jovanović, Milan T., Ilić, Nenad, Cvijović-Alagić, Ivana, Maksimović, Vesna, Zec, Slavica, "Multilayer aluminum composites prepared by rolling of pure and anodized aluminum foils" in Transactions of Nonferrous Metals Society of China, 27, no. 9 (2017):1907-1919,
https://doi.org/10.1016/S1003-6326(17)60215-2 . .

TY  - JOUR
AU  - Ilić, Svetlana M.
AU  - Zec, Slavica
AU  - Rosić, Milena
AU  - Maksimović, Vesna
AU  - Ružić, Jovana
AU  - Urbanovich, Vladimir
AU  - Matović, Branko
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/925
AB  - Investigations of the high-pressure sintered nanocrystalline mullite powder are presented. The synthesized mullite powder with crystallite size of 51 nm was densified by using high-pressure anvil-type with hollows apparatus at 4 GPa over the temperature range of 1100-1500 degrees C in 100 degrees C steps. The phase composition and structural parameters of the densified samples were studied as a function of densification temperature. The XRD analysis revealed the appearance of new phases, such as kyanite and corundum, whose development affected the densities of the sintered samples. High relative densities of the sintered samples were obtained because of the application of high pressure. The needle-like microstructure was developed owing to the anisotropic grain growth of mullite. The elongated mullite grains reached the length of approximately 5 mu m at 1400 degrees C, whereas the grains treated at 1500 degrees C became thicker preserving the same needle length. The Vickers microhardness of the developed microstructures increased with the increase of temperature up to 1400 degrees C, while at 1500 degrees C it was slightly reduced due to the grain coarsening. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
PB  - Elsevier
T2  - Ceramics International
T1  - High pressure densification of nanocrystalline mullite powder
VL  - 42
IS  - 4
SP  - 5319
EP  - 5325
DO  - 10.1016/j.ceramint.2015.12.062
ER  - 

@article{
author = "Ilić, Svetlana M. and Zec, Slavica and Rosić, Milena and Maksimović, Vesna and Ružić, Jovana and Urbanovich, Vladimir and Matović, Branko",
year = "2016",
abstract = "Investigations of the high-pressure sintered nanocrystalline mullite powder are presented. The synthesized mullite powder with crystallite size of 51 nm was densified by using high-pressure anvil-type with hollows apparatus at 4 GPa over the temperature range of 1100-1500 degrees C in 100 degrees C steps. The phase composition and structural parameters of the densified samples were studied as a function of densification temperature. The XRD analysis revealed the appearance of new phases, such as kyanite and corundum, whose development affected the densities of the sintered samples. High relative densities of the sintered samples were obtained because of the application of high pressure. The needle-like microstructure was developed owing to the anisotropic grain growth of mullite. The elongated mullite grains reached the length of approximately 5 mu m at 1400 degrees C, whereas the grains treated at 1500 degrees C became thicker preserving the same needle length. The Vickers microhardness of the developed microstructures increased with the increase of temperature up to 1400 degrees C, while at 1500 degrees C it was slightly reduced due to the grain coarsening. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
publisher = "Elsevier",
journal = "Ceramics International",
title = "High pressure densification of nanocrystalline mullite powder",
volume = "42",
number = "4",
pages = "5319-5325",
doi = "10.1016/j.ceramint.2015.12.062"
}

Ilić, S. M., Zec, S., Rosić, M., Maksimović, V., Ružić, J., Urbanovich, V.,& Matović, B.. (2016). High pressure densification of nanocrystalline mullite powder. in Ceramics International
Elsevier., 42(4), 5319-5325.
https://doi.org/10.1016/j.ceramint.2015.12.062

Ilić SM, Zec S, Rosić M, Maksimović V, Ružić J, Urbanovich V, Matović B. High pressure densification of nanocrystalline mullite powder. in Ceramics International. 2016;42(4):5319-5325.
doi:10.1016/j.ceramint.2015.12.062 .

Ilić, Svetlana M., Zec, Slavica, Rosić, Milena, Maksimović, Vesna, Ružić, Jovana, Urbanovich, Vladimir, Matović, Branko, "High pressure densification of nanocrystalline mullite powder" in Ceramics International, 42, no. 4 (2016):5319-5325,
https://doi.org/10.1016/j.ceramint.2015.12.062 . .

TY  - CONF
AU  - Ilić, Svetlana
AU  - Zec, Slavica
AU  - Stojmenović, Marija
AU  - Pantić, Jelena
AU  - Čebela, Maria
AU  - Kljajević, Ljiljana
AU  - Matović, Branko
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11527
AB  - The phase development of hybrid mullite precursor has been studied in the range of synthesized mullite gel to 1550 °C. The sol-gel derived mullite precursor powders were prepared using ethanol-water solutions of TEOS, Al(III) nitrate and urea. TGA/DSC, XRD and FTIR analyses were employed in order to follow structural development and phase transformation of as-prepared gel, combusted ash and calcined powders. Thermal analysis shows the two step mullitization path of synthesized mullite precursor occurred via spinel phase. The XRD patterns confirm that the crystalline mullite did not appear up to 1200 °C. The FTIR spectra of obtained mullite precursors and calcined mullite powders present the characteristic bands of Si–O–Si and Al–O–Al linkages up to 1200 °C indicating the diphasic nature of the examined precursors and powders. The SEM analysis reveals the irregularly agglomerated powder particles composed of smaller plate particles formed during combustion and calcination of the powder precursors.
PB  - University of Novi Sad : Faculty of Technology
C3  - 11th Conference for Young Scientists in Ceramics (SM-2015, and ESR Workshop, COST MP1208) : programme and the book of abstracts
T1  - Phase development and thermal behaviour of hybrid sol-gel derived mullite precursor
SP  - 60
EP  - 60
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11527
ER  - 

@conference{
author = "Ilić, Svetlana and Zec, Slavica and Stojmenović, Marija and Pantić, Jelena and Čebela, Maria and Kljajević, Ljiljana and Matović, Branko",
year = "2015",
abstract = "The phase development of hybrid mullite precursor has been studied in the range of synthesized mullite gel to 1550 °C. The sol-gel derived mullite precursor powders were prepared using ethanol-water solutions of TEOS, Al(III) nitrate and urea. TGA/DSC, XRD and FTIR analyses were employed in order to follow structural development and phase transformation of as-prepared gel, combusted ash and calcined powders. Thermal analysis shows the two step mullitization path of synthesized mullite precursor occurred via spinel phase. The XRD patterns confirm that the crystalline mullite did not appear up to 1200 °C. The FTIR spectra of obtained mullite precursors and calcined mullite powders present the characteristic bands of Si–O–Si and Al–O–Al linkages up to 1200 °C indicating the diphasic nature of the examined precursors and powders. The SEM analysis reveals the irregularly agglomerated powder particles composed of smaller plate particles formed during combustion and calcination of the powder precursors.",
publisher = "University of Novi Sad : Faculty of Technology",
journal = "11th Conference for Young Scientists in Ceramics (SM-2015, and ESR Workshop, COST MP1208) : programme and the book of abstracts",
title = "Phase development and thermal behaviour of hybrid sol-gel derived mullite precursor",
pages = "60-60",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11527"
}

Ilić, S., Zec, S., Stojmenović, M., Pantić, J., Čebela, M., Kljajević, L.,& Matović, B.. (2015). Phase development and thermal behaviour of hybrid sol-gel derived mullite precursor. in 11th Conference for Young Scientists in Ceramics (SM-2015, and ESR Workshop, COST MP1208) : programme and the book of abstracts
University of Novi Sad : Faculty of Technology., 60-60.
https://hdl.handle.net/21.15107/rcub_vinar_11527

Ilić S, Zec S, Stojmenović M, Pantić J, Čebela M, Kljajević L, Matović B. Phase development and thermal behaviour of hybrid sol-gel derived mullite precursor. in 11th Conference for Young Scientists in Ceramics (SM-2015, and ESR Workshop, COST MP1208) : programme and the book of abstracts. 2015;:60-60.
https://hdl.handle.net/21.15107/rcub_vinar_11527 .

Ilić, Svetlana, Zec, Slavica, Stojmenović, Marija, Pantić, Jelena, Čebela, Maria, Kljajević, Ljiljana, Matović, Branko, "Phase development and thermal behaviour of hybrid sol-gel derived mullite precursor" in 11th Conference for Young Scientists in Ceramics (SM-2015, and ESR Workshop, COST MP1208) : programme and the book of abstracts (2015):60-60,
https://hdl.handle.net/21.15107/rcub_vinar_11527 .

TY  - CONF
AU  - Ilić, Svetlana
AU  - Zec, Slavica
AU  - Maksimović, Vesna
AU  - Urbanovich, Vladimir
AU  - Egelja, Adela
AU  - Čebela, Maria
AU  - Matović, Branko
PY  - 2015
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11528
AB  - The effect of sintering temperature on microstructure and density of the sintered mullite samples during the high pressure sintering process was investigated. High pressure sintering is one of the effective methods for producing fully dense bulk ceramics products enhancing densification and limiting grain growth. Synthesized mullite precursor powder was calcinated at 1200 °C for 4 h in order to obtain crystalline mullite powder that was confirmed by XRPD analysis. To determine the optimum sintering temperature for obtaining fully dense mullite samples crystalline mullite powder was compacted at 4.0 GPa in the temperature range 1100-1500 °C with step of 100 °C for 60 s. The measured densities of sintered samples rise with increasing the sintering temperature due to recrystallization of mullite particles. The particles of the starting powder are agglomerated while the microstructure of sintered samples reveals needle-like grains. The needles become elongated with increasing the temperature of sintering process and reach the grain length about 5 μm at 1400 and 1500 °C whereas the grains at 1500 °C are wider.
PB  - Belgrade : Institute for Multidisciplinary Research, University of Belgrade
C3  - Advanced Ceramics and Application : 3rd Conference of The Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia
T1  - The influence of temperature on microstructure of mullite sintered at high pressure
SP  - 103
EP  - 104
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11528
ER  - 

@conference{
author = "Ilić, Svetlana and Zec, Slavica and Maksimović, Vesna and Urbanovich, Vladimir and Egelja, Adela and Čebela, Maria and Matović, Branko",
year = "2015",
abstract = "The effect of sintering temperature on microstructure and density of the sintered mullite samples during the high pressure sintering process was investigated. High pressure sintering is one of the effective methods for producing fully dense bulk ceramics products enhancing densification and limiting grain growth. Synthesized mullite precursor powder was calcinated at 1200 °C for 4 h in order to obtain crystalline mullite powder that was confirmed by XRPD analysis. To determine the optimum sintering temperature for obtaining fully dense mullite samples crystalline mullite powder was compacted at 4.0 GPa in the temperature range 1100-1500 °C with step of 100 °C for 60 s. The measured densities of sintered samples rise with increasing the sintering temperature due to recrystallization of mullite particles. The particles of the starting powder are agglomerated while the microstructure of sintered samples reveals needle-like grains. The needles become elongated with increasing the temperature of sintering process and reach the grain length about 5 μm at 1400 and 1500 °C whereas the grains at 1500 °C are wider.",
publisher = "Belgrade : Institute for Multidisciplinary Research, University of Belgrade",
journal = "Advanced Ceramics and Application : 3rd Conference of The Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia",
title = "The influence of temperature on microstructure of mullite sintered at high pressure",
pages = "103-104",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11528"
}

Ilić, S., Zec, S., Maksimović, V., Urbanovich, V., Egelja, A., Čebela, M.,& Matović, B.. (2015). The influence of temperature on microstructure of mullite sintered at high pressure. in Advanced Ceramics and Application : 3rd Conference of The Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia
Belgrade : Institute for Multidisciplinary Research, University of Belgrade., 103-104.
https://hdl.handle.net/21.15107/rcub_vinar_11528

Ilić S, Zec S, Maksimović V, Urbanovich V, Egelja A, Čebela M, Matović B. The influence of temperature on microstructure of mullite sintered at high pressure. in Advanced Ceramics and Application : 3rd Conference of The Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia. 2015;:103-104.
https://hdl.handle.net/21.15107/rcub_vinar_11528 .

Ilić, Svetlana, Zec, Slavica, Maksimović, Vesna, Urbanovich, Vladimir, Egelja, Adela, Čebela, Maria, Matović, Branko, "The influence of temperature on microstructure of mullite sintered at high pressure" in Advanced Ceramics and Application : 3rd Conference of The Serbian Society for Ceramic Materials, 3CSCS-2015, June 15-17, 2015, Belgrade, Serbia (2015):103-104,
https://hdl.handle.net/21.15107/rcub_vinar_11528 .

TY  - JOUR
AU  - Stanić, Vojislav
AU  - Dimitrijević, Suzana I.
AU  - Antonović, Dušan
AU  - Jokić, Bojan M.
AU  - Zec, Slavica
AU  - Tanaskovic, Sladjana T.
AU  - Raičević, Slavica
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5820
AB  - Synthetic biomaterials based on fluorine substituted hydroxyapatite are potentially attractive for orthopedic and dental implant applications. The new synthesis of fluorine substituted hydroxyapatite samples were done by neutralization, which consists of adding the solution of HF and H3PO4 in suspension of Ca(OH)(2). Characterization studies from XRD, SEM and FTIR spectra showed that crystals are obtained with apatite structure and those particles of all samples are nano size, with an average length of 80 nm and about 15-25 nm in diameter. The central composite design was used in order to determine the optimal conditions for the antimicrobial activity of the synthesized samples. In order to evaluate the influence of operating parameters on the percent of viable cell reduction of Streptococcus mutans, three independent variables were chosen: exposure time, pH of saline and floride concentration in apatite samples. The experimental and predicted antimicrobial activities were in close agreement. Antimicrobial activity of the samples increases with the increase of fluoride concentration and the decreased pH of saline. The maximum antimicrobial activity was achieved at the initial pH of 4. (C) 2013 Elsevier B.V. All rights reserved.
T2  - Applied Surface Science
T1  - Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects
VL  - 290
SP  - 346
EP  - 352
DO  - 10.1016/j.apsusc.2013.11.081
ER  - 

@article{
author = "Stanić, Vojislav and Dimitrijević, Suzana I. and Antonović, Dušan and Jokić, Bojan M. and Zec, Slavica and Tanaskovic, Sladjana T. and Raičević, Slavica",
year = "2014",
abstract = "Synthetic biomaterials based on fluorine substituted hydroxyapatite are potentially attractive for orthopedic and dental implant applications. The new synthesis of fluorine substituted hydroxyapatite samples were done by neutralization, which consists of adding the solution of HF and H3PO4 in suspension of Ca(OH)(2). Characterization studies from XRD, SEM and FTIR spectra showed that crystals are obtained with apatite structure and those particles of all samples are nano size, with an average length of 80 nm and about 15-25 nm in diameter. The central composite design was used in order to determine the optimal conditions for the antimicrobial activity of the synthesized samples. In order to evaluate the influence of operating parameters on the percent of viable cell reduction of Streptococcus mutans, three independent variables were chosen: exposure time, pH of saline and floride concentration in apatite samples. The experimental and predicted antimicrobial activities were in close agreement. Antimicrobial activity of the samples increases with the increase of fluoride concentration and the decreased pH of saline. The maximum antimicrobial activity was achieved at the initial pH of 4. (C) 2013 Elsevier B.V. All rights reserved.",
journal = "Applied Surface Science",
title = "Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects",
volume = "290",
pages = "346-352",
doi = "10.1016/j.apsusc.2013.11.081"
}

Stanić, V., Dimitrijević, S. I., Antonović, D., Jokić, B. M., Zec, S., Tanaskovic, S. T.,& Raičević, S.. (2014). Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects. in Applied Surface Science, 290, 346-352.
https://doi.org/10.1016/j.apsusc.2013.11.081

Stanić V, Dimitrijević SI, Antonović D, Jokić BM, Zec S, Tanaskovic ST, Raičević S. Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects. in Applied Surface Science. 2014;290:346-352.
doi:10.1016/j.apsusc.2013.11.081 .

Stanić, Vojislav, Dimitrijević, Suzana I., Antonović, Dušan, Jokić, Bojan M., Zec, Slavica, Tanaskovic, Sladjana T., Raičević, Slavica, "Synthesis of fluorine substituted hydroxyapatite nanopowders and application of the central composite design for determination of its antimicrobial effects" in Applied Surface Science, 290 (2014):346-352,
https://doi.org/10.1016/j.apsusc.2013.11.081 . .

TY  - JOUR
AU  - Ilić, Svetlana M.
AU  - Zec, Slavica
AU  - Miljkovic, M.
AU  - Poleti, Dejan
AU  - Pošarac-Marković, Milica B.
AU  - Janaćković, Đorđe T.
AU  - Matović, Branko
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6089
AB  - Amorphous powders of iron doped 3:2 mullite (3Al(2)O(3)center dot 2SiO(2)) were prepared by sol-gel combustion process using ethanol-water solutions of Al(III) nitrate, Fe(III) nitrate, TEOS and urea. Compositions up to 15 wt% of Fe2O3 were investigated. After combustion and heat treatment at 800 degrees C for 4 h, XRD analysis confirmed that the powders were amorphous. This is in agreement with the thermodynamic predictions that direct formation of mullite has not occurred during the aluminum nitrate - urea combustion reaction. XRD patterns of uniaxially pressed and sintered pellets at 1550 degrees C for 4 h revealed the crystal structure of orthorhombic mullite. The lattice parameters and unit cell volume increases as the mullite solid solutions were enriched by iron. The TGA/DSC analysis showed the reducing of crystallization temperature of iron doped mullites with increasing of iron content in reaction mixtures. The mullitization reaction is two-step process including formation of transient spinel phase below 1000 degrees C and mullite crystallization at temperatures about 1200 degrees C. The SEM micrographs of the sintered samples reveal elongated mullite grains with grain length up to 40 mu m. Increasing of the iron content in the reaction mixture enhances the grain size and the grains become elongated and better packed increasing the density of sintered samples. (C) 2014 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Sol-gel synthesis and characterization of iron doped mullite
VL  - 612
SP  - 259
EP  - 264
DO  - 10.1016/j.jallcom.2014.05.204
ER  - 

@article{
author = "Ilić, Svetlana M. and Zec, Slavica and Miljkovic, M. and Poleti, Dejan and Pošarac-Marković, Milica B. and Janaćković, Đorđe T. and Matović, Branko",
year = "2014",
abstract = "Amorphous powders of iron doped 3:2 mullite (3Al(2)O(3)center dot 2SiO(2)) were prepared by sol-gel combustion process using ethanol-water solutions of Al(III) nitrate, Fe(III) nitrate, TEOS and urea. Compositions up to 15 wt% of Fe2O3 were investigated. After combustion and heat treatment at 800 degrees C for 4 h, XRD analysis confirmed that the powders were amorphous. This is in agreement with the thermodynamic predictions that direct formation of mullite has not occurred during the aluminum nitrate - urea combustion reaction. XRD patterns of uniaxially pressed and sintered pellets at 1550 degrees C for 4 h revealed the crystal structure of orthorhombic mullite. The lattice parameters and unit cell volume increases as the mullite solid solutions were enriched by iron. The TGA/DSC analysis showed the reducing of crystallization temperature of iron doped mullites with increasing of iron content in reaction mixtures. The mullitization reaction is two-step process including formation of transient spinel phase below 1000 degrees C and mullite crystallization at temperatures about 1200 degrees C. The SEM micrographs of the sintered samples reveal elongated mullite grains with grain length up to 40 mu m. Increasing of the iron content in the reaction mixture enhances the grain size and the grains become elongated and better packed increasing the density of sintered samples. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Sol-gel synthesis and characterization of iron doped mullite",
volume = "612",
pages = "259-264",
doi = "10.1016/j.jallcom.2014.05.204"
}

Ilić, S. M., Zec, S., Miljkovic, M., Poleti, D., Pošarac-Marković, M. B., Janaćković, Đ. T.,& Matović, B.. (2014). Sol-gel synthesis and characterization of iron doped mullite. in Journal of Alloys and Compounds, 612, 259-264.
https://doi.org/10.1016/j.jallcom.2014.05.204

Ilić SM, Zec S, Miljkovic M, Poleti D, Pošarac-Marković MB, Janaćković ĐT, Matović B. Sol-gel synthesis and characterization of iron doped mullite. in Journal of Alloys and Compounds. 2014;612:259-264.
doi:10.1016/j.jallcom.2014.05.204 .

Ilić, Svetlana M., Zec, Slavica, Miljkovic, M., Poleti, Dejan, Pošarac-Marković, Milica B., Janaćković, Đorđe T., Matović, Branko, "Sol-gel synthesis and characterization of iron doped mullite" in Journal of Alloys and Compounds, 612 (2014):259-264,
https://doi.org/10.1016/j.jallcom.2014.05.204 . .

TY  - CONF
AU  - Ilić, Svetlana
AU  - Zec, Slavica
AU  - Radosavljević-Mihajlović, Ana S.
AU  - Maksimović, Vesna
AU  - Kokunešoski, Maja
AU  - Matović, Branko
PY  - 2013
UR  - http://opentechnicum.com/wp-content/uploads/2015/07/Abstracts-book-2CSCS-2013.pdf
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11260
PB  - Institute for Multidisciplinary Research, University of Belgrade
C3  - 2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade
T1  - Synthesis and characterization of Fe-doped mullite
SP  - 72
EP  - 73
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11260
ER  - 

@conference{
author = "Ilić, Svetlana and Zec, Slavica and Radosavljević-Mihajlović, Ana S. and Maksimović, Vesna and Kokunešoski, Maja and Matović, Branko",
year = "2013",
publisher = "Institute for Multidisciplinary Research, University of Belgrade",
journal = "2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade",
title = "Synthesis and characterization of Fe-doped mullite",
pages = "72-73",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11260"
}

Ilić, S., Zec, S., Radosavljević-Mihajlović, A. S., Maksimović, V., Kokunešoski, M.,& Matović, B.. (2013). Synthesis and characterization of Fe-doped mullite. in 2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade
Institute for Multidisciplinary Research, University of Belgrade., 72-73.
https://hdl.handle.net/21.15107/rcub_vinar_11260

Ilić S, Zec S, Radosavljević-Mihajlović AS, Maksimović V, Kokunešoski M, Matović B. Synthesis and characterization of Fe-doped mullite. in 2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade. 2013;:72-73.
https://hdl.handle.net/21.15107/rcub_vinar_11260 .

Ilić, Svetlana, Zec, Slavica, Radosavljević-Mihajlović, Ana S., Maksimović, Vesna, Kokunešoski, Maja, Matović, Branko, "Synthesis and characterization of Fe-doped mullite" in 2CSCS-2013 : 2nd Conference of the Serbian Ceramic Materials : program and the book of abstracts; June 5-7, Belgrade (2013):72-73,
https://hdl.handle.net/21.15107/rcub_vinar_11260 .

TY  - JOUR
AU  - Grahovac, Nebojša N.
AU  - Stanković, Srboljub
AU  - Zec, Slavica
AU  - Maksimović, Vesna
AU  - Grahovac, Boris
AU  - Milovanović, Dubravka S.
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/2743
AB  - Results of the wear resistance of the diamond-coated cutting tool inserts upon machining Al-12% Si alloy and glass fiber/polyester resin composites are presented in this paper. The aim of this paper was to demonstrate the advantages of application of cutting tool inserts with the diamond coating over the conventional tungsten-carbide (WC) tools, and to obtain the cheaper serial production (shorter machining time) and satisfactory lifetime of the diamond cutting tool inserts. Surface roughness of the machined samples was measured for both as-received and diamond coated inserts. The diamond microstructure of undamaged part of inserts as well as the appearance of microstructure of diamond coated inserts after machining has been investigated. Results of the behavior of two regimes of preparation of diamond-coated inserts were compared and analyzed. Generally, the wear resistance of the diamond-coated cutting tool is superior over the conventional tool.
T2  - Processing and Application of Ceramics
T1  - Wear of diamond-coated cutting tool inserts upon machining of Al-12% Si and glass fiber/polyester resin composites
VL  - 7
IS  - 2
SP  - 69
EP  - 72
DO  - 10.2298/PAC1302069G
ER  - 

@article{
author = "Grahovac, Nebojša N. and Stanković, Srboljub and Zec, Slavica and Maksimović, Vesna and Grahovac, Boris and Milovanović, Dubravka S.",
year = "2013",
abstract = "Results of the wear resistance of the diamond-coated cutting tool inserts upon machining Al-12% Si alloy and glass fiber/polyester resin composites are presented in this paper. The aim of this paper was to demonstrate the advantages of application of cutting tool inserts with the diamond coating over the conventional tungsten-carbide (WC) tools, and to obtain the cheaper serial production (shorter machining time) and satisfactory lifetime of the diamond cutting tool inserts. Surface roughness of the machined samples was measured for both as-received and diamond coated inserts. The diamond microstructure of undamaged part of inserts as well as the appearance of microstructure of diamond coated inserts after machining has been investigated. Results of the behavior of two regimes of preparation of diamond-coated inserts were compared and analyzed. Generally, the wear resistance of the diamond-coated cutting tool is superior over the conventional tool.",
journal = "Processing and Application of Ceramics",
title = "Wear of diamond-coated cutting tool inserts upon machining of Al-12% Si and glass fiber/polyester resin composites",
volume = "7",
number = "2",
pages = "69-72",
doi = "10.2298/PAC1302069G"
}

Grahovac, N. N., Stanković, S., Zec, S., Maksimović, V., Grahovac, B.,& Milovanović, D. S.. (2013). Wear of diamond-coated cutting tool inserts upon machining of Al-12% Si and glass fiber/polyester resin composites. in Processing and Application of Ceramics, 7(2), 69-72.
https://doi.org/10.2298/PAC1302069G

Grahovac NN, Stanković S, Zec S, Maksimović V, Grahovac B, Milovanović DS. Wear of diamond-coated cutting tool inserts upon machining of Al-12% Si and glass fiber/polyester resin composites. in Processing and Application of Ceramics. 2013;7(2):69-72.
doi:10.2298/PAC1302069G .

Grahovac, Nebojša N., Stanković, Srboljub, Zec, Slavica, Maksimović, Vesna, Grahovac, Boris, Milovanović, Dubravka S., "Wear of diamond-coated cutting tool inserts upon machining of Al-12% Si and glass fiber/polyester resin composites" in Processing and Application of Ceramics, 7, no. 2 (2013):69-72,
https://doi.org/10.2298/PAC1302069G . .

TY  - JOUR
AU  - Stanković, Jovan B.
AU  - Milonjić, Slobodan K.
AU  - Zec, Slavica
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5615
AB  - Two zirconia samples were prepared by precipitation from aqueous zirconium oxychloride and zirconyl sulfate solutions with potassium hydroxide. The prepared zirconia samples were amorphous. The pH(pzc) values of the zirconia samples, determined in NaCl and NaNO3 solutions, were 6.6 +/- 0.1 and 6.9 +/- 0.1, respectively. After prolonged hydration of zirconia in doubly distilled water, the pH(pzc) decreased to 4.7 +/- 0.3. Crystallization into tetragonal (metastable) + monoclinic zirconia appeared at 691 K. Above 873 K, the tetragonal metastable phase changes to a monoclinic phase. It was shown that crystallite sizes of zirconia treated at 673-1273 K increased from 9.5 to 40.5 nm, respectively. The increase in temperature from 385 to 1070 K increased the pH(pzc) of zirconia samples from 6.6 to 9.0, respectively.
T2  - Journal of the Serbian Chemical Society
T1  - The influence of chemical and thermal treatment on the point of zero charge of hydrous zirconium oxide
VL  - 78
IS  - 7
SP  - 987
EP  - 995
DO  - 10.2298/JSC121010149S
ER  - 

@article{
author = "Stanković, Jovan B. and Milonjić, Slobodan K. and Zec, Slavica",
year = "2013",
abstract = "Two zirconia samples were prepared by precipitation from aqueous zirconium oxychloride and zirconyl sulfate solutions with potassium hydroxide. The prepared zirconia samples were amorphous. The pH(pzc) values of the zirconia samples, determined in NaCl and NaNO3 solutions, were 6.6 +/- 0.1 and 6.9 +/- 0.1, respectively. After prolonged hydration of zirconia in doubly distilled water, the pH(pzc) decreased to 4.7 +/- 0.3. Crystallization into tetragonal (metastable) + monoclinic zirconia appeared at 691 K. Above 873 K, the tetragonal metastable phase changes to a monoclinic phase. It was shown that crystallite sizes of zirconia treated at 673-1273 K increased from 9.5 to 40.5 nm, respectively. The increase in temperature from 385 to 1070 K increased the pH(pzc) of zirconia samples from 6.6 to 9.0, respectively.",
journal = "Journal of the Serbian Chemical Society",
title = "The influence of chemical and thermal treatment on the point of zero charge of hydrous zirconium oxide",
volume = "78",
number = "7",
pages = "987-995",
doi = "10.2298/JSC121010149S"
}

Stanković, J. B., Milonjić, S. K.,& Zec, S.. (2013). The influence of chemical and thermal treatment on the point of zero charge of hydrous zirconium oxide. in Journal of the Serbian Chemical Society, 78(7), 987-995.
https://doi.org/10.2298/JSC121010149S

Stanković JB, Milonjić SK, Zec S. The influence of chemical and thermal treatment on the point of zero charge of hydrous zirconium oxide. in Journal of the Serbian Chemical Society. 2013;78(7):987-995.
doi:10.2298/JSC121010149S .

Stanković, Jovan B., Milonjić, Slobodan K., Zec, Slavica, "The influence of chemical and thermal treatment on the point of zero charge of hydrous zirconium oxide" in Journal of the Serbian Chemical Society, 78, no. 7 (2013):987-995,
https://doi.org/10.2298/JSC121010149S . .

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  - Vilotijević, Miroljub N.
AU  - Markovic, Petar
AU  - Zec, Slavica
AU  - Marinković, Slobodan N.
AU  - Jokanović, Vukoman R.
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4281
AB  - For two hydroxyapatite (HA) powders, containing particles differing in mass by a factor of 20, a set of optimum deposition parameters was defined, leading to the coatings with high crystallinity (80-90%), high adhesion strength (60 and 40 MPa for the coating thicknesses of 120 mu m and 350 mu m, respectively) and excellent microstructure (coatings were without micro- or macro-cracks, without delaminating on substrate-coating surface contact, and possess low porosity, 1-2%). It was shown that higher plasma power (52 kW) did not necessarily lead to a higher HA decomposition. (C) 2011 Elsevier B.V. All rights reserved.
T2  - Journal of Materials Processing Technology
T1  - Hydroxyapatite coatings prepared by a high power laminar plasma jet
VL  - 211
IS  - 6
SP  - 996
EP  - 1004
DO  - 10.1016/j.jmatprotec.2010.12.018
ER  - 

@article{
author = "Vilotijević, Miroljub N. and Markovic, Petar and Zec, Slavica and Marinković, Slobodan N. and Jokanović, Vukoman R.",
year = "2011",
abstract = "For two hydroxyapatite (HA) powders, containing particles differing in mass by a factor of 20, a set of optimum deposition parameters was defined, leading to the coatings with high crystallinity (80-90%), high adhesion strength (60 and 40 MPa for the coating thicknesses of 120 mu m and 350 mu m, respectively) and excellent microstructure (coatings were without micro- or macro-cracks, without delaminating on substrate-coating surface contact, and possess low porosity, 1-2%). It was shown that higher plasma power (52 kW) did not necessarily lead to a higher HA decomposition. (C) 2011 Elsevier B.V. All rights reserved.",
journal = "Journal of Materials Processing Technology",
title = "Hydroxyapatite coatings prepared by a high power laminar plasma jet",
volume = "211",
number = "6",
pages = "996-1004",
doi = "10.1016/j.jmatprotec.2010.12.018"
}

Vilotijević, M. N., Markovic, P., Zec, S., Marinković, S. N.,& Jokanović, V. R.. (2011). Hydroxyapatite coatings prepared by a high power laminar plasma jet. in Journal of Materials Processing Technology, 211(6), 996-1004.
https://doi.org/10.1016/j.jmatprotec.2010.12.018

Vilotijević MN, Markovic P, Zec S, Marinković SN, Jokanović VR. Hydroxyapatite coatings prepared by a high power laminar plasma jet. in Journal of Materials Processing Technology. 2011;211(6):996-1004.
doi:10.1016/j.jmatprotec.2010.12.018 .

Vilotijević, Miroljub N., Markovic, Petar, Zec, Slavica, Marinković, Slobodan N., Jokanović, Vukoman R., "Hydroxyapatite coatings prepared by a high power laminar plasma jet" in Journal of Materials Processing Technology, 211, no. 6 (2011):996-1004,
https://doi.org/10.1016/j.jmatprotec.2010.12.018 . .

TY  - JOUR
AU  - Bučevac, Dušan
AU  - Matović, Branko
AU  - Bošković, Snežana B.
AU  - Zec, Slavica
AU  - Krstic, Vladimir
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4172
AB  - SiC-TiB2 particulate composites were fabricated by converting TiO2 to TiB2 through the reaction between TiO2, B4C and C. The presence of initially very fine, in-situ created, TiB2 particles increased driving force for sintering and enabled fabrication of a dense composite utilizing pressureless sintering and the liquid phase created between Al2O3 and Y2O3 additives. The effect of volume fraction of the in-situ formed TiB2 on density, microstructure and flexural strength was discussed. It was found that the presence of TiB2 particles suppressed the growth of SiC grains and enhanced fracture strength. The fracture strength of samples containing 12 vol% TiB2 was more than 30% higher than that of the monolithic SIC. The effect of SIC grain size on fracture strength was also analyzed. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Pressureless sintering of internally synthesized SiC-TiB2 composites with improved fracture strength
VL  - 509
IS  - 3
SP  - 990
EP  - 996
DO  - 10.1016/j.jallcom.2010.09.152
ER  - 

@article{
author = "Bučevac, Dušan and Matović, Branko and Bošković, Snežana B. and Zec, Slavica and Krstic, Vladimir",
year = "2011",
abstract = "SiC-TiB2 particulate composites were fabricated by converting TiO2 to TiB2 through the reaction between TiO2, B4C and C. The presence of initially very fine, in-situ created, TiB2 particles increased driving force for sintering and enabled fabrication of a dense composite utilizing pressureless sintering and the liquid phase created between Al2O3 and Y2O3 additives. The effect of volume fraction of the in-situ formed TiB2 on density, microstructure and flexural strength was discussed. It was found that the presence of TiB2 particles suppressed the growth of SiC grains and enhanced fracture strength. The fracture strength of samples containing 12 vol% TiB2 was more than 30% higher than that of the monolithic SIC. The effect of SIC grain size on fracture strength was also analyzed. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Pressureless sintering of internally synthesized SiC-TiB2 composites with improved fracture strength",
volume = "509",
number = "3",
pages = "990-996",
doi = "10.1016/j.jallcom.2010.09.152"
}

Bučevac, D., Matović, B., Bošković, S. B., Zec, S.,& Krstic, V.. (2011). Pressureless sintering of internally synthesized SiC-TiB2 composites with improved fracture strength. in Journal of Alloys and Compounds, 509(3), 990-996.
https://doi.org/10.1016/j.jallcom.2010.09.152

Bučevac D, Matović B, Bošković SB, Zec S, Krstic V. Pressureless sintering of internally synthesized SiC-TiB2 composites with improved fracture strength. in Journal of Alloys and Compounds. 2011;509(3):990-996.
doi:10.1016/j.jallcom.2010.09.152 .

Bučevac, Dušan, Matović, Branko, Bošković, Snežana B., Zec, Slavica, Krstic, Vladimir, "Pressureless sintering of internally synthesized SiC-TiB2 composites with improved fracture strength" in Journal of Alloys and Compounds, 509, no. 3 (2011):990-996,
https://doi.org/10.1016/j.jallcom.2010.09.152 . .

TY  - JOUR
AU  - Stojmenović, Marija
AU  - Bošković, Snežana B.
AU  - Zec, Slavica
AU  - Babić, Biljana M.
AU  - Matović, Branko
AU  - Bučevac, Dušan
AU  - Dohcevic-Mitrovic, Z.
AU  - Aldinger, Fritz
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4126
AB  - The ceria solid solutions doped with rare earth cations were synthesized by two methods and the microstructural and morphological characterization of powders was performed. The results obtained by X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) method and Raman spectroscopy were studied and discussed. The results showed that finer powders have not only higher specific surface area, smaller particles and crystallite sizes, but also larger lattice parameters in the case of both single and multidoped solid solutions. (C) 2010 Elsevier B.V. All rights reserved.
T2  - Journal of Alloys and Compounds
T1  - Characterization of nanometric multidoped ceria powders
VL  - 507
IS  - 1
SP  - 279
EP  - 285
DO  - 10.1016/j.jallcom.2010.07.177
ER  - 

@article{
author = "Stojmenović, Marija and Bošković, Snežana B. and Zec, Slavica and Babić, Biljana M. and Matović, Branko and Bučevac, Dušan and Dohcevic-Mitrovic, Z. and Aldinger, Fritz",
year = "2010",
abstract = "The ceria solid solutions doped with rare earth cations were synthesized by two methods and the microstructural and morphological characterization of powders was performed. The results obtained by X-ray diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) method and Raman spectroscopy were studied and discussed. The results showed that finer powders have not only higher specific surface area, smaller particles and crystallite sizes, but also larger lattice parameters in the case of both single and multidoped solid solutions. (C) 2010 Elsevier B.V. All rights reserved.",
journal = "Journal of Alloys and Compounds",
title = "Characterization of nanometric multidoped ceria powders",
volume = "507",
number = "1",
pages = "279-285",
doi = "10.1016/j.jallcom.2010.07.177"
}

Stojmenović, M., Bošković, S. B., Zec, S., Babić, B. M., Matović, B., Bučevac, D., Dohcevic-Mitrovic, Z.,& Aldinger, F.. (2010). Characterization of nanometric multidoped ceria powders. in Journal of Alloys and Compounds, 507(1), 279-285.
https://doi.org/10.1016/j.jallcom.2010.07.177

Stojmenović M, Bošković SB, Zec S, Babić BM, Matović B, Bučevac D, Dohcevic-Mitrovic Z, Aldinger F. Characterization of nanometric multidoped ceria powders. in Journal of Alloys and Compounds. 2010;507(1):279-285.
doi:10.1016/j.jallcom.2010.07.177 .

Stojmenović, Marija, Bošković, Snežana B., Zec, Slavica, Babić, Biljana M., Matović, Branko, Bučevac, Dušan, Dohcevic-Mitrovic, Z., Aldinger, Fritz, "Characterization of nanometric multidoped ceria powders" in Journal of Alloys and Compounds, 507, no. 1 (2010):279-285,
https://doi.org/10.1016/j.jallcom.2010.07.177 . .

TY  - JOUR
AU  - Bošković, Snežana B.
AU  - Zec, Slavica
AU  - Branković, Goran O.
AU  - Brankovic, Z.
AU  - Devečerski, Aleksandar
AU  - Matović, Branko
AU  - Aldinger, Fritz
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3855
AB  - Multiply doped ceria nanopowders were synthesized by applying MGNP (modified glycine/nitrate procedure). The overall concentration of dopants was kept constant (x = 0.2) whereby Gd ion as the main dopant was gradually substituted by Sm and by Sm + Y. The compositions of solid solutions were calculated by applying defect model introducing anion vacancy radius. Characterization of powders involved BET, TEM, XRD and chemical analyses. Densification was performed at 1500 degrees C, in an oxygen atmosphere for 1 h. The results showed that with increasing number of dopants, specific surface area of powders increased, followed by decrease of crystallite and grain sizes. Densification degree was also found to rise with increasing number of dopants. According to impedance measurements it was found that ionic conductivity was the highest 1.14 x 10(-3) S cm(-1) at 450 degrees C in sample doped with Gd, Sm and Y simultaneously. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All fights reserved.
T2  - Ceramics International
T1  - Preparation, sintering and electrical properties of nano-grained multidoped ceria
VL  - 36
IS  - 1
SP  - 121
EP  - 127
DO  - 10.1016/j.ceramint.2009.07.015
ER  - 

@article{
author = "Bošković, Snežana B. and Zec, Slavica and Branković, Goran O. and Brankovic, Z. and Devečerski, Aleksandar and Matović, Branko and Aldinger, Fritz",
year = "2010",
abstract = "Multiply doped ceria nanopowders were synthesized by applying MGNP (modified glycine/nitrate procedure). The overall concentration of dopants was kept constant (x = 0.2) whereby Gd ion as the main dopant was gradually substituted by Sm and by Sm + Y. The compositions of solid solutions were calculated by applying defect model introducing anion vacancy radius. Characterization of powders involved BET, TEM, XRD and chemical analyses. Densification was performed at 1500 degrees C, in an oxygen atmosphere for 1 h. The results showed that with increasing number of dopants, specific surface area of powders increased, followed by decrease of crystallite and grain sizes. Densification degree was also found to rise with increasing number of dopants. According to impedance measurements it was found that ionic conductivity was the highest 1.14 x 10(-3) S cm(-1) at 450 degrees C in sample doped with Gd, Sm and Y simultaneously. (C) 2009 Elsevier Ltd and Techna Group S.r.l. All fights reserved.",
journal = "Ceramics International",
title = "Preparation, sintering and electrical properties of nano-grained multidoped ceria",
volume = "36",
number = "1",
pages = "121-127",
doi = "10.1016/j.ceramint.2009.07.015"
}

Bošković, S. B., Zec, S., Branković, G. O., Brankovic, Z., Devečerski, A., Matović, B.,& Aldinger, F.. (2010). Preparation, sintering and electrical properties of nano-grained multidoped ceria. in Ceramics International, 36(1), 121-127.
https://doi.org/10.1016/j.ceramint.2009.07.015

Bošković SB, Zec S, Branković GO, Brankovic Z, Devečerski A, Matović B, Aldinger F. Preparation, sintering and electrical properties of nano-grained multidoped ceria. in Ceramics International. 2010;36(1):121-127.
doi:10.1016/j.ceramint.2009.07.015 .

Bošković, Snežana B., Zec, Slavica, Branković, Goran O., Brankovic, Z., Devečerski, Aleksandar, Matović, Branko, Aldinger, Fritz, "Preparation, sintering and electrical properties of nano-grained multidoped ceria" in Ceramics International, 36, no. 1 (2010):121-127,
https://doi.org/10.1016/j.ceramint.2009.07.015 . .

TY  - JOUR
AU  - Stanisavljevic, M.
AU  - Krstic, I.
AU  - Zec, Slavica
PY  - 2010
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3946
AB  - Methods of purification of waste water which are most commonly used in the Republic of Serbia belong to the type of conventional systems for purification such as chemical oxidation and reduction, neutralization, sedimentation, coagulation, and flocculation. Consequently, these methods generate waste sludge which, unless adequately stabilized, represents hazardous matter. The aluminium slag generated by melting or die-casting aluminium and its alloys is also hazardous matter. In this sense, this paper establishes ecological risk of galvanic waste sludge and aluminium slag and then describes the process of stabilization of these waste materials by means of transformation into a glass-ceramic structure through sintering. The obtained product was analyzed with Fourier Transform Infrared Spectroscopy (FT-IR) and X-ray diffraction (XRD). The object of the paper is the eco-technological process of producing glass-ceramics from galvanic sludge and aluminium slag. The aim of the paper is to incorporate toxic metals from galvanic sludge and aluminium slag into the glass-ceramic product, in the form of solid solutions.
T2  - Science of Sintering
T1  - Eco-Technological Process of Glass-Ceramic Production From Galvanic Sludge and Aluminium Slag
VL  - 42
IS  - 1
SP  - 125
EP  - 130
DO  - 10.2298/SOS1001124S
ER  - 

@article{
author = "Stanisavljevic, M. and Krstic, I. and Zec, Slavica",
year = "2010",
abstract = "Methods of purification of waste water which are most commonly used in the Republic of Serbia belong to the type of conventional systems for purification such as chemical oxidation and reduction, neutralization, sedimentation, coagulation, and flocculation. Consequently, these methods generate waste sludge which, unless adequately stabilized, represents hazardous matter. The aluminium slag generated by melting or die-casting aluminium and its alloys is also hazardous matter. In this sense, this paper establishes ecological risk of galvanic waste sludge and aluminium slag and then describes the process of stabilization of these waste materials by means of transformation into a glass-ceramic structure through sintering. The obtained product was analyzed with Fourier Transform Infrared Spectroscopy (FT-IR) and X-ray diffraction (XRD). The object of the paper is the eco-technological process of producing glass-ceramics from galvanic sludge and aluminium slag. The aim of the paper is to incorporate toxic metals from galvanic sludge and aluminium slag into the glass-ceramic product, in the form of solid solutions.",
journal = "Science of Sintering",
title = "Eco-Technological Process of Glass-Ceramic Production From Galvanic Sludge and Aluminium Slag",
volume = "42",
number = "1",
pages = "125-130",
doi = "10.2298/SOS1001124S"
}

Stanisavljevic, M., Krstic, I.,& Zec, S.. (2010). Eco-Technological Process of Glass-Ceramic Production From Galvanic Sludge and Aluminium Slag. in Science of Sintering, 42(1), 125-130.
https://doi.org/10.2298/SOS1001124S

Stanisavljevic M, Krstic I, Zec S. Eco-Technological Process of Glass-Ceramic Production From Galvanic Sludge and Aluminium Slag. in Science of Sintering. 2010;42(1):125-130.
doi:10.2298/SOS1001124S .

Stanisavljevic, M., Krstic, I., Zec, Slavica, "Eco-Technological Process of Glass-Ceramic Production From Galvanic Sludge and Aluminium Slag" in Science of Sintering, 42, no. 1 (2010):125-130,
https://doi.org/10.2298/SOS1001124S . .

TY  - JOUR
AU  - Zec, Slavica
AU  - Dukić, Jelena
AU  - Pusevac, M.
AU  - Bošković, Snežana B.
AU  - Petrović, R.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3903
AB  - Synthesis of La-9.33(SiO4)(6)O-2 was performed by a new method that represents the combination of sol-gel and combustion procedures using glycine as the fuel. Syntheses were performed from ethanol-water solutions of oxides precursors, lanthanum nitrate and tetraethyl orthosilicate. The optimum synthesis parameters have been established by varying molar ratio of tetraethyl orthosilicate to water as well as glycine to NO3- ions. The phase identification and the structural characterization were performed by X-ray powder diffraction. The pure nanocrystalline La-9.33(SiO4)(6)O-2 with the crystallite sizes of 32 nm was directly synthesized during combustion process of homogeneous gel that was generated in solution with the following molar ratios: glycine: NO3- = 0.56 and tetraethyl orthosilicate: water = 1:20. Well-crystallized La-9.33(SiO4)(6)O-2 structure was obtained after heating at 1200 degrees C. The lattice parameters a = 9.7156(9) and c = 7.1810(8) angstrom confirmed the composition La-9.33(SiO4)(6)O-2.
T2  - Materials and Manufacturing Processes
T1  - Sol-Gel Combustion Synthesis of La-9.33(SiO4)(6)O-2 Oxyapatite
VL  - 24
IS  - 10-11
SP  - 1104
EP  - 1108
DO  - 10.1080/10426910902976112
ER  - 

@article{
author = "Zec, Slavica and Dukić, Jelena and Pusevac, M. and Bošković, Snežana B. and Petrović, R.",
year = "2009",
abstract = "Synthesis of La-9.33(SiO4)(6)O-2 was performed by a new method that represents the combination of sol-gel and combustion procedures using glycine as the fuel. Syntheses were performed from ethanol-water solutions of oxides precursors, lanthanum nitrate and tetraethyl orthosilicate. The optimum synthesis parameters have been established by varying molar ratio of tetraethyl orthosilicate to water as well as glycine to NO3- ions. The phase identification and the structural characterization were performed by X-ray powder diffraction. The pure nanocrystalline La-9.33(SiO4)(6)O-2 with the crystallite sizes of 32 nm was directly synthesized during combustion process of homogeneous gel that was generated in solution with the following molar ratios: glycine: NO3- = 0.56 and tetraethyl orthosilicate: water = 1:20. Well-crystallized La-9.33(SiO4)(6)O-2 structure was obtained after heating at 1200 degrees C. The lattice parameters a = 9.7156(9) and c = 7.1810(8) angstrom confirmed the composition La-9.33(SiO4)(6)O-2.",
journal = "Materials and Manufacturing Processes",
title = "Sol-Gel Combustion Synthesis of La-9.33(SiO4)(6)O-2 Oxyapatite",
volume = "24",
number = "10-11",
pages = "1104-1108",
doi = "10.1080/10426910902976112"
}

Zec, S., Dukić, J., Pusevac, M., Bošković, S. B.,& Petrović, R.. (2009). Sol-Gel Combustion Synthesis of La-9.33(SiO4)(6)O-2 Oxyapatite. in Materials and Manufacturing Processes, 24(10-11), 1104-1108.
https://doi.org/10.1080/10426910902976112

Zec S, Dukić J, Pusevac M, Bošković SB, Petrović R. Sol-Gel Combustion Synthesis of La-9.33(SiO4)(6)O-2 Oxyapatite. in Materials and Manufacturing Processes. 2009;24(10-11):1104-1108.
doi:10.1080/10426910902976112 .

Zec, Slavica, Dukić, Jelena, Pusevac, M., Bošković, Snežana B., Petrović, R., "Sol-Gel Combustion Synthesis of La-9.33(SiO4)(6)O-2 Oxyapatite" in Materials and Manufacturing Processes, 24, no. 10-11 (2009):1104-1108,
https://doi.org/10.1080/10426910902976112 . .

TY  - JOUR
AU  - Abazović, Nadica
AU  - Čomor, Mirjana
AU  - Zec, Slavica
AU  - Nedeljković, Jovan
AU  - Piscopiello, Emanuela
AU  - Montone, Amelia
AU  - Antisari, Marco Vittori
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3672
AB  - Flower-like agglomerates with sizes of 200-400 nm of pure and Fe3+-doped TiO2 with rutile crystalline structure were synthesized by the coprecipitation method. The morphology of the agglomerates was determined by electron microscopy (TEM and HRTEM). TiO2 agglomerates consist of nanorods with clearly visible crystalline faces, parallel to the axis of elongation whose direction was along the [101] direction of pure TiO2 and the [111] direction of doped TiO2. Furthermore, nanorods consist of chains of spherical particles, most likely interconnected through the so-called oriented attachment or grain-rotation-induced grain coalescence (GRIGC) process. UV/Vis reflection measurements revealed that the absorption of pure TiO2 was significantly shifted from UV toward the visible spectral region upon the incorporation of Fe3+ into the TiO2 host.
T2  - Journal of the American Ceramic Society
T1  - Structural and Optical Characterization of Flower-Like Rutile Nanostructures Doped with Fe3+
VL  - 92
IS  - 4
SP  - 894
EP  - 896
DO  - 10.1111/j.1551-2916.2009.02962.x
ER  - 

@article{
author = "Abazović, Nadica and Čomor, Mirjana and Zec, Slavica and Nedeljković, Jovan and Piscopiello, Emanuela and Montone, Amelia and Antisari, Marco Vittori",
year = "2009",
abstract = "Flower-like agglomerates with sizes of 200-400 nm of pure and Fe3+-doped TiO2 with rutile crystalline structure were synthesized by the coprecipitation method. The morphology of the agglomerates was determined by electron microscopy (TEM and HRTEM). TiO2 agglomerates consist of nanorods with clearly visible crystalline faces, parallel to the axis of elongation whose direction was along the [101] direction of pure TiO2 and the [111] direction of doped TiO2. Furthermore, nanorods consist of chains of spherical particles, most likely interconnected through the so-called oriented attachment or grain-rotation-induced grain coalescence (GRIGC) process. UV/Vis reflection measurements revealed that the absorption of pure TiO2 was significantly shifted from UV toward the visible spectral region upon the incorporation of Fe3+ into the TiO2 host.",
journal = "Journal of the American Ceramic Society",
title = "Structural and Optical Characterization of Flower-Like Rutile Nanostructures Doped with Fe3+",
volume = "92",
number = "4",
pages = "894-896",
doi = "10.1111/j.1551-2916.2009.02962.x"
}

Abazović, N., Čomor, M., Zec, S., Nedeljković, J., Piscopiello, E., Montone, A.,& Antisari, M. V.. (2009). Structural and Optical Characterization of Flower-Like Rutile Nanostructures Doped with Fe3+. in Journal of the American Ceramic Society, 92(4), 894-896.
https://doi.org/10.1111/j.1551-2916.2009.02962.x

Abazović N, Čomor M, Zec S, Nedeljković J, Piscopiello E, Montone A, Antisari MV. Structural and Optical Characterization of Flower-Like Rutile Nanostructures Doped with Fe3+. in Journal of the American Ceramic Society. 2009;92(4):894-896.
doi:10.1111/j.1551-2916.2009.02962.x .

Abazović, Nadica, Čomor, Mirjana, Zec, Slavica, Nedeljković, Jovan, Piscopiello, Emanuela, Montone, Amelia, Antisari, Marco Vittori, "Structural and Optical Characterization of Flower-Like Rutile Nanostructures Doped with Fe3+" in Journal of the American Ceramic Society, 92, no. 4 (2009):894-896,
https://doi.org/10.1111/j.1551-2916.2009.02962.x . .

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  - CONF
AU  - Zec, Slavica
AU  - Bošković, Snežana B.
AU  - Petrović, Rada
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9389
AB  - The pure Ce4.67(SiO4)3O with the apatite-type of structure was obtained for the first time from cerium nitrate, glycine and tetraethyl orthosilicate (TEOS) through the self-combustion of the gel. The solution of the reactants with the molar ratio of TEOS to water 1: 42 and glycine to NO3 ¯ 1: 3 was transformed into gel. During combustion of the gel the ash containing nanostructured CeO2 and noncrystalline SiO2 was formed. The phase identification and the measurement of the crystallite size was done by XRD diffraction. Ce4.67(SiO4)3O was synthesized from the ash subsequently fired in argon at 1200 °C.
PB  - Society of Physical Chemists of Serbia
C3  - Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
T1  - Synthesis of apatite-type Ce4.67(SiO4)3O via glycinenitrate combustion
VL  - 2
SP  - 521
EP  - 523
UR  - https://hdl.handle.net/21.15107/rcub_vinar_9389
ER  - 

@conference{
author = "Zec, Slavica and Bošković, Snežana B. and Petrović, Rada",
year = "2008",
abstract = "The pure Ce4.67(SiO4)3O with the apatite-type of structure was obtained for the first time from cerium nitrate, glycine and tetraethyl orthosilicate (TEOS) through the self-combustion of the gel. The solution of the reactants with the molar ratio of TEOS to water 1: 42 and glycine to NO3 ¯ 1: 3 was transformed into gel. During combustion of the gel the ash containing nanostructured CeO2 and noncrystalline SiO2 was formed. The phase identification and the measurement of the crystallite size was done by XRD diffraction. Ce4.67(SiO4)3O was synthesized from the ash subsequently fired in argon at 1200 °C.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry",
title = "Synthesis of apatite-type Ce4.67(SiO4)3O via glycinenitrate combustion",
volume = "2",
pages = "521-523",
url = "https://hdl.handle.net/21.15107/rcub_vinar_9389"
}

Zec, S., Bošković, S. B.,& Petrović, R.. (2008). Synthesis of apatite-type Ce4.67(SiO4)3O via glycinenitrate combustion. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry
Society of Physical Chemists of Serbia., 2, 521-523.
https://hdl.handle.net/21.15107/rcub_vinar_9389

Zec S, Bošković SB, Petrović R. Synthesis of apatite-type Ce4.67(SiO4)3O via glycinenitrate combustion. in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry. 2008;2:521-523.
https://hdl.handle.net/21.15107/rcub_vinar_9389 .

Zec, Slavica, Bošković, Snežana B., Petrović, Rada, "Synthesis of apatite-type Ce4.67(SiO4)3O via glycinenitrate combustion" in Physical chemistry 2008 : 9th international conference on fundamental and applied aspects of physical chemistry, 2 (2008):521-523,
https://hdl.handle.net/21.15107/rcub_vinar_9389 .

TY  - JOUR
AU  - Bošković, Snežana B.
AU  - Zec, Slavica
AU  - Ninic, M.
AU  - Nenadović, Miloš
AU  - Dukić, Jelena
AU  - Matović, Branko
AU  - Đurović, Dejan R.
AU  - Zinkevich, M.
AU  - Aldinger, Fritz
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3400
AB  - Nanometric size ceria powder particles were obtained by applying modified glycine/nitrate, as well as self propagating room temperature methods. The powders were doped and co-doped with rare earth cations in the concentration range 0 :5 x :! 0.25. The results showed that by doping with one or more dopants simultaneously in the mentioned concentration range solid solutions with host ceria were formed. Differences in the properties of nanopowders obtained by the two methods were discussed. Defect model introducing anion vacancy radius was applied to calculate lattice parameters of single doped and co-doped ceria nanosized solid solutions.
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Nanosized ceria solid solutions obtained by different chemical routes
VL  - 10
IS  - 3
SP  - 515
EP  - 519
UR  - https://hdl.handle.net/21.15107/rcub_vinar_3400
ER  - 

@article{
author = "Bošković, Snežana B. and Zec, Slavica and Ninic, M. and Nenadović, Miloš and Dukić, Jelena and Matović, Branko and Đurović, Dejan R. and Zinkevich, M. and Aldinger, Fritz",
year = "2008",
abstract = "Nanometric size ceria powder particles were obtained by applying modified glycine/nitrate, as well as self propagating room temperature methods. The powders were doped and co-doped with rare earth cations in the concentration range 0 :5 x :! 0.25. The results showed that by doping with one or more dopants simultaneously in the mentioned concentration range solid solutions with host ceria were formed. Differences in the properties of nanopowders obtained by the two methods were discussed. Defect model introducing anion vacancy radius was applied to calculate lattice parameters of single doped and co-doped ceria nanosized solid solutions.",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Nanosized ceria solid solutions obtained by different chemical routes",
volume = "10",
number = "3",
pages = "515-519",
url = "https://hdl.handle.net/21.15107/rcub_vinar_3400"
}

Bošković, S. B., Zec, S., Ninic, M., Nenadović, M., Dukić, J., Matović, B., Đurović, D. R., Zinkevich, M.,& Aldinger, F.. (2008). Nanosized ceria solid solutions obtained by different chemical routes. in Journal of Optoelectronics and Advanced Materials, 10(3), 515-519.
https://hdl.handle.net/21.15107/rcub_vinar_3400

Bošković SB, Zec S, Ninic M, Nenadović M, Dukić J, Matović B, Đurović DR, Zinkevich M, Aldinger F. Nanosized ceria solid solutions obtained by different chemical routes. in Journal of Optoelectronics and Advanced Materials. 2008;10(3):515-519.
https://hdl.handle.net/21.15107/rcub_vinar_3400 .

Bošković, Snežana B., Zec, Slavica, Ninic, M., Nenadović, Miloš, Dukić, Jelena, Matović, Branko, Đurović, Dejan R., Zinkevich, M., Aldinger, Fritz, "Nanosized ceria solid solutions obtained by different chemical routes" in Journal of Optoelectronics and Advanced Materials, 10, no. 3 (2008):515-519,
https://hdl.handle.net/21.15107/rcub_vinar_3400 .

TY  - JOUR
AU  - Bošković, Snežana B.
AU  - Đurović, Dejan R.
AU  - Zec, Slavica
AU  - Matović, Branko
AU  - Zinkevich, Matvei
AU  - Aldinger, Fritz
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3563
AB  - Glycine/nitrate method was modified and applied to synthesize ceria solid solutions doped with rare earth cations and yttrium (Gd, Sm, Nd, Y) in the concentration range 0 LT = x LT = 0.25. The modification of glycine nitrate process was performed by substituting a portion of Ce-nitrate with the less expensive Ce-acetate. Nanometric size powder particles were obtained. Powder properties such as specific surface area, crystallite and particle size, dopants content and lattice parameters have been studied. The results showed that the dopants used in the mentioned concentration range formed solid solutions with host ceria. Defect model introducing anion vacancy radius can be applied to calculate lattice parameters and theoretical densities of doped and four-fold co-doped ceria nanosized solid solutions. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
T2  - Ceramics International
T1  - Doped and Co-doped CeO2: Preparation and properties
VL  - 34
IS  - 8
SP  - 2001
EP  - 2006
DO  - 10.1016/j.ceramint.2007.07.036
ER  - 

@article{
author = "Bošković, Snežana B. and Đurović, Dejan R. and Zec, Slavica and Matović, Branko and Zinkevich, Matvei and Aldinger, Fritz",
year = "2008",
abstract = "Glycine/nitrate method was modified and applied to synthesize ceria solid solutions doped with rare earth cations and yttrium (Gd, Sm, Nd, Y) in the concentration range 0 LT = x LT = 0.25. The modification of glycine nitrate process was performed by substituting a portion of Ce-nitrate with the less expensive Ce-acetate. Nanometric size powder particles were obtained. Powder properties such as specific surface area, crystallite and particle size, dopants content and lattice parameters have been studied. The results showed that the dopants used in the mentioned concentration range formed solid solutions with host ceria. Defect model introducing anion vacancy radius can be applied to calculate lattice parameters and theoretical densities of doped and four-fold co-doped ceria nanosized solid solutions. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.",
journal = "Ceramics International",
title = "Doped and Co-doped CeO2: Preparation and properties",
volume = "34",
number = "8",
pages = "2001-2006",
doi = "10.1016/j.ceramint.2007.07.036"
}

Bošković, S. B., Đurović, D. R., Zec, S., Matović, B., Zinkevich, M.,& Aldinger, F.. (2008). Doped and Co-doped CeO2: Preparation and properties. in Ceramics International, 34(8), 2001-2006.
https://doi.org/10.1016/j.ceramint.2007.07.036

Bošković SB, Đurović DR, Zec S, Matović B, Zinkevich M, Aldinger F. Doped and Co-doped CeO2: Preparation and properties. in Ceramics International. 2008;34(8):2001-2006.
doi:10.1016/j.ceramint.2007.07.036 .

Bošković, Snežana B., Đurović, Dejan R., Zec, Slavica, Matović, Branko, Zinkevich, Matvei, Aldinger, Fritz, "Doped and Co-doped CeO2: Preparation and properties" in Ceramics International, 34, no. 8 (2008):2001-2006,
https://doi.org/10.1016/j.ceramint.2007.07.036 . .

TY  - JOUR
AU  - Milonjić, Slobodan K.
AU  - Čerović, Ljiljana S.
AU  - Čokeša, Đuro
AU  - Zec, Slavica
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3183
AB  - The influence of the heat treatment on the crystal structure change of five (two laboratory prepared and three commercial) silica powders were investigated. Silicas were heat treated in the temperature range from 150 to 1300 degrees C in air. Also, the influence of the washing procedure with 0.01 mol/L HCl in order to desorb cations present as impurities in silica samples, was studied. The change of the amorphous into the crystal structure (alpha-cristobalite) takes place in the range 1050-1300 degrees C, depending on the chemical purity of silica samples. Points of zero charge, pH(pzc), of the same silica samples, ranging from 3.8 to 7.1, were also determined by batch equilibration method. It is shown that the desorption of cations from silica samples, i.e., increase in their purity, leads to a shift in pH(pzc) toward lower values. (c) 2006 Elsevier Inc. All rights reserved.
T2  - Journal of Colloid and Interface Science
T1  - The influence of cationic impurities in silica on its crystallization and point of zero charge
VL  - 309
IS  - 1
SP  - 155
EP  - 159
DO  - 10.1016/j.jcis.2006.12.033
ER  - 

@article{
author = "Milonjić, Slobodan K. and Čerović, Ljiljana S. and Čokeša, Đuro and Zec, Slavica",
year = "2007",
abstract = "The influence of the heat treatment on the crystal structure change of five (two laboratory prepared and three commercial) silica powders were investigated. Silicas were heat treated in the temperature range from 150 to 1300 degrees C in air. Also, the influence of the washing procedure with 0.01 mol/L HCl in order to desorb cations present as impurities in silica samples, was studied. The change of the amorphous into the crystal structure (alpha-cristobalite) takes place in the range 1050-1300 degrees C, depending on the chemical purity of silica samples. Points of zero charge, pH(pzc), of the same silica samples, ranging from 3.8 to 7.1, were also determined by batch equilibration method. It is shown that the desorption of cations from silica samples, i.e., increase in their purity, leads to a shift in pH(pzc) toward lower values. (c) 2006 Elsevier Inc. All rights reserved.",
journal = "Journal of Colloid and Interface Science",
title = "The influence of cationic impurities in silica on its crystallization and point of zero charge",
volume = "309",
number = "1",
pages = "155-159",
doi = "10.1016/j.jcis.2006.12.033"
}

Milonjić, S. K., Čerović, L. S., Čokeša, Đ.,& Zec, S.. (2007). The influence of cationic impurities in silica on its crystallization and point of zero charge. in Journal of Colloid and Interface Science, 309(1), 155-159.
https://doi.org/10.1016/j.jcis.2006.12.033

Milonjić SK, Čerović LS, Čokeša Đ, Zec S. The influence of cationic impurities in silica on its crystallization and point of zero charge. in Journal of Colloid and Interface Science. 2007;309(1):155-159.
doi:10.1016/j.jcis.2006.12.033 .

Milonjić, Slobodan K., Čerović, Ljiljana S., Čokeša, Đuro, Zec, Slavica, "The influence of cationic impurities in silica on its crystallization and point of zero charge" in Journal of Colloid and Interface Science, 309, no. 1 (2007):155-159,
https://doi.org/10.1016/j.jcis.2006.12.033 . .

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  - Hrovat, M.
AU  - Kosec, M.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/6641
AB  - Four ternary compositions in the Ce2O3 rich part of the Ce2O3-SiO2-ZrO2 System were investigated. The corresponding mixtures of CeO2, SiO2 and ZrO2 were fired at 1400 degrees C in an Ar + 7% H-2 atmosphere until the phase equilibria were attained. The samples were characterized by XRD, SEM and EDS analysis. The thermal effects and the mass changes of the fired compositions were monitored by DTA/TG analyses. The oxyapatite phase, Ce-4.67(SiO4)(3)O, and the fee phases identified as the solid solutions (CeZr)O2-y, (CezZr1-z)O2-x, and Ce2Zr2O7+2 delta were observed in this part of the Ce2O3-SiO2-ZrO2 system. The DTA/TGA analyses indicated the presence of the Ce+4 ions in the fired compositions, while the lowest melting temperature was noticed at 1627 degrees C. (c) 2006 Elsevier Ltd. All rights reserved.
T2  - Journal of the European Ceramic Society
T1  - Contribution to phase equilibria in the Ce2O3 rich part of the Ce2O3-SiO2-ZrO2 system
VL  - 27
IS  - 2-3
SP  - 523
EP  - 526
DO  - 10.1016/j.jeurceramsoc.2006.04.064
ER  - 

@article{
author = "Zec, Slavica and Bošković, Snežana B. and Hrovat, M. and Kosec, M.",
year = "2007",
abstract = "Four ternary compositions in the Ce2O3 rich part of the Ce2O3-SiO2-ZrO2 System were investigated. The corresponding mixtures of CeO2, SiO2 and ZrO2 were fired at 1400 degrees C in an Ar + 7% H-2 atmosphere until the phase equilibria were attained. The samples were characterized by XRD, SEM and EDS analysis. The thermal effects and the mass changes of the fired compositions were monitored by DTA/TG analyses. The oxyapatite phase, Ce-4.67(SiO4)(3)O, and the fee phases identified as the solid solutions (CeZr)O2-y, (CezZr1-z)O2-x, and Ce2Zr2O7+2 delta were observed in this part of the Ce2O3-SiO2-ZrO2 system. The DTA/TGA analyses indicated the presence of the Ce+4 ions in the fired compositions, while the lowest melting temperature was noticed at 1627 degrees C. (c) 2006 Elsevier Ltd. All rights reserved.",
journal = "Journal of the European Ceramic Society",
title = "Contribution to phase equilibria in the Ce2O3 rich part of the Ce2O3-SiO2-ZrO2 system",
volume = "27",
number = "2-3",
pages = "523-526",
doi = "10.1016/j.jeurceramsoc.2006.04.064"
}

Zec, S., Bošković, S. B., Hrovat, M.,& Kosec, M.. (2007). Contribution to phase equilibria in the Ce2O3 rich part of the Ce2O3-SiO2-ZrO2 system. in Journal of the European Ceramic Society, 27(2-3), 523-526.
https://doi.org/10.1016/j.jeurceramsoc.2006.04.064

Zec S, Bošković SB, Hrovat M, Kosec M. Contribution to phase equilibria in the Ce2O3 rich part of the Ce2O3-SiO2-ZrO2 system. in Journal of the European Ceramic Society. 2007;27(2-3):523-526.
doi:10.1016/j.jeurceramsoc.2006.04.064 .

Zec, Slavica, Bošković, Snežana B., Hrovat, M., Kosec, M., "Contribution to phase equilibria in the Ce2O3 rich part of the Ce2O3-SiO2-ZrO2 system" in Journal of the European Ceramic Society, 27, no. 2-3 (2007):523-526,
https://doi.org/10.1016/j.jeurceramsoc.2006.04.064 . .