TY  - JOUR
AU  - Omerašević, Mia
AU  - Lukić, Miodrag
AU  - Savić-Biserčić, Marjetka
AU  - Savić, Andrija B.
AU  - Matović, Ljiljana
AU  - Baščarević, Zvezdana D.
AU  - Bučevac, Dušan
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8563
AB  - A promising method for removal of Cs ions from water and their incorporation into stable crystal structure ready for safe and permanent disposal was described. Cs-exchanged X zeolite was hot-pressed at temperature ranging from 800 to 950 °C to fabricate dense pollucite ceramics. It was found that the application of external pressure reduced the pollucite formation temperature. The effect of sintering temperature on density, phase composition and mechanical properties was investigated. The highest density of 92.5 %TD and the highest compressive strength of 79 MPa were measured in pollucite hot-pressed at 950 °C for 3 h. Heterogeneity of samples obtained at 950 °C was determined using scanning electron microscopy. The pollucite hot-pressed at 950 °C had low linear thermal expansion coefficient of ∼4.67 × 10−6 K−1 in the temperature range from 100 to 1000 °C. © 2019
T2  - Nuclear Engineering and Technology
T1  - Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient
VL  - 52
IS  - 1
SP  - 115
EP  - 122
DO  - 10.1016/j.net.2019.07.001
ER  - 

@article{
author = "Omerašević, Mia and Lukić, Miodrag and Savić-Biserčić, Marjetka and Savić, Andrija B. and Matović, Ljiljana and Baščarević, Zvezdana D. and Bučevac, Dušan",
year = "2020",
abstract = "A promising method for removal of Cs ions from water and their incorporation into stable crystal structure ready for safe and permanent disposal was described. Cs-exchanged X zeolite was hot-pressed at temperature ranging from 800 to 950 °C to fabricate dense pollucite ceramics. It was found that the application of external pressure reduced the pollucite formation temperature. The effect of sintering temperature on density, phase composition and mechanical properties was investigated. The highest density of 92.5 %TD and the highest compressive strength of 79 MPa were measured in pollucite hot-pressed at 950 °C for 3 h. Heterogeneity of samples obtained at 950 °C was determined using scanning electron microscopy. The pollucite hot-pressed at 950 °C had low linear thermal expansion coefficient of ∼4.67 × 10−6 K−1 in the temperature range from 100 to 1000 °C. © 2019",
journal = "Nuclear Engineering and Technology",
title = "Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient",
volume = "52",
number = "1",
pages = "115-122",
doi = "10.1016/j.net.2019.07.001"
}

Omerašević, M., Lukić, M., Savić-Biserčić, M., Savić, A. B., Matović, L., Baščarević, Z. D.,& Bučevac, D.. (2020). Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient. in Nuclear Engineering and Technology, 52(1), 115-122.
https://doi.org/10.1016/j.net.2019.07.001

Omerašević M, Lukić M, Savić-Biserčić M, Savić AB, Matović L, Baščarević ZD, Bučevac D. Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient. in Nuclear Engineering and Technology. 2020;52(1):115-122.
doi:10.1016/j.net.2019.07.001 .

Omerašević, Mia, Lukić, Miodrag, Savić-Biserčić, Marjetka, Savić, Andrija B., Matović, Ljiljana, Baščarević, Zvezdana D., Bučevac, Dušan, "Permanent disposal of Cs ions in the form of dense pollucite ceramics having low thermal expansion coefficient" in Nuclear Engineering and Technology, 52, no. 1 (2020):115-122,
https://doi.org/10.1016/j.net.2019.07.001 . .

TY  - JOUR
AU  - Pantić, Tijana
AU  - Milanović, Igor
AU  - Lukić, Miodrag
AU  - Grbović-Novaković, Jasmina
AU  - Kurko, Sandra V.
AU  - Biliškov, Nikola
AU  - Milošević Govedarović, Sanja S.
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8568
AB  - The influence of different milling conditions obtained using two high-energy mills on hydrogen desorption from MgH2-WO3 composites was investigated. The morphology, particle and crystallite size were studied as a function of milling speed, vial's volume, and ball-to-powder ratio. The vial's fill level, the number, and type of milling balls and additive's content kept constant. Changes in morphology and microstructure were correlated to desorption properties of materials. Higher milling speed reduced particle size but, there is no significant crystallite size reduction. On the other hand, additive distribution is similar regardless of the energy input. It has been noticed that different energy input on milling blend, which is the result of combined effects of above-mentioned factors, reflects on desorption temperature but not on the kinetics of desorption. In fact, desorption mechanism changes from 2D to 3D growth with constant nucleation rate, despite obtained changes in microstructure or chemical composition of the material. © 2019 Hydrogen Energy Publications LLC
T2  - International Journal of Hydrogen Energy
T1  - The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites
VL  - 45
IS  - 14
SP  - 7901
EP  - 7911
DO  - 10.1016/j.ijhydene.2019.07.167
ER  - 

@article{
author = "Pantić, Tijana and Milanović, Igor and Lukić, Miodrag and Grbović-Novaković, Jasmina and Kurko, Sandra V. and Biliškov, Nikola and Milošević Govedarović, Sanja S.",
year = "2020",
abstract = "The influence of different milling conditions obtained using two high-energy mills on hydrogen desorption from MgH2-WO3 composites was investigated. The morphology, particle and crystallite size were studied as a function of milling speed, vial's volume, and ball-to-powder ratio. The vial's fill level, the number, and type of milling balls and additive's content kept constant. Changes in morphology and microstructure were correlated to desorption properties of materials. Higher milling speed reduced particle size but, there is no significant crystallite size reduction. On the other hand, additive distribution is similar regardless of the energy input. It has been noticed that different energy input on milling blend, which is the result of combined effects of above-mentioned factors, reflects on desorption temperature but not on the kinetics of desorption. In fact, desorption mechanism changes from 2D to 3D growth with constant nucleation rate, despite obtained changes in microstructure or chemical composition of the material. © 2019 Hydrogen Energy Publications LLC",
journal = "International Journal of Hydrogen Energy",
title = "The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites",
volume = "45",
number = "14",
pages = "7901-7911",
doi = "10.1016/j.ijhydene.2019.07.167"
}

Pantić, T., Milanović, I., Lukić, M., Grbović-Novaković, J., Kurko, S. V., Biliškov, N.,& Milošević Govedarović, S. S.. (2020). The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites. in International Journal of Hydrogen Energy, 45(14), 7901-7911.
https://doi.org/10.1016/j.ijhydene.2019.07.167

Pantić T, Milanović I, Lukić M, Grbović-Novaković J, Kurko SV, Biliškov N, Milošević Govedarović SS. The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites. in International Journal of Hydrogen Energy. 2020;45(14):7901-7911.
doi:10.1016/j.ijhydene.2019.07.167 .

Pantić, Tijana, Milanović, Igor, Lukić, Miodrag, Grbović-Novaković, Jasmina, Kurko, Sandra V., Biliškov, Nikola, Milošević Govedarović, Sanja S., "The influence of mechanical milling parameters on hydrogen desorption from Mgh2-Wo3 composites" in International Journal of Hydrogen Energy, 45, no. 14 (2020):7901-7911,
https://doi.org/10.1016/j.ijhydene.2019.07.167 . .

TY  - CONF
AU  - Ćirić, Darko
AU  - Martinović, Tamara
AU  - Kravić-Stevović, Tamara K.
AU  - Volarević, Vladislav
AU  - Paunović, Verica G.
AU  - Marković, Zoran M.
AU  - Marković-Simović, Bojana
AU  - Misirkić-Marjanović, Maja
AU  - Todorović-Marković, Biljana
AU  - Bojić, Sanja
AU  - Vučićević, Ljubica
AU  - Jovanović, Svetlana P.
AU  - Arsenijević, Nebojša N.
AU  - Holclajtner-Antunović, Ivanka D.
AU  - Milosavljević, Momir
AU  - Dramićanin, Miroslav
AU  - Lukić, Miodrag L.
AU  - Trajković, Vladimir S.
AU  - Bumbaširević, Vladimir Ž.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8741
PB  - Belgrade : Serbian Academy of Sciences and Arts
C3  - Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
T1  - Ultrastructural Analysis of Large Graphene Quantum Dots Internalization in Hepatocytes
SP  - 272
EP  - 274
UR  - https://hdl.handle.net/21.15107/rcub_vinar_8741
ER  - 

@conference{
author = "Ćirić, Darko and Martinović, Tamara and Kravić-Stevović, Tamara K. and Volarević, Vladislav and Paunović, Verica G. and Marković, Zoran M. and Marković-Simović, Bojana and Misirkić-Marjanović, Maja and Todorović-Marković, Biljana and Bojić, Sanja and Vučićević, Ljubica and Jovanović, Svetlana P. and Arsenijević, Nebojša N. and Holclajtner-Antunović, Ivanka D. and Milosavljević, Momir and Dramićanin, Miroslav and Lukić, Miodrag L. and Trajković, Vladimir S. and Bumbaširević, Vladimir Ž.",
year = "2018",
publisher = "Belgrade : Serbian Academy of Sciences and Arts",
journal = "Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia",
title = "Ultrastructural Analysis of Large Graphene Quantum Dots Internalization in Hepatocytes",
pages = "272-274",
url = "https://hdl.handle.net/21.15107/rcub_vinar_8741"
}

Ćirić, D., Martinović, T., Kravić-Stevović, T. K., Volarević, V., Paunović, V. G., Marković, Z. M., Marković-Simović, B., Misirkić-Marjanović, M., Todorović-Marković, B., Bojić, S., Vučićević, L., Jovanović, S. P., Arsenijević, N. N., Holclajtner-Antunović, I. D., Milosavljević, M., Dramićanin, M., Lukić, M. L., Trajković, V. S.,& Bumbaširević, V. Ž.. (2018). Ultrastructural Analysis of Large Graphene Quantum Dots Internalization in Hepatocytes. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia
Belgrade : Serbian Academy of Sciences and Arts., 272-274.
https://hdl.handle.net/21.15107/rcub_vinar_8741

Ćirić D, Martinović T, Kravić-Stevović TK, Volarević V, Paunović VG, Marković ZM, Marković-Simović B, Misirkić-Marjanović M, Todorović-Marković B, Bojić S, Vučićević L, Jovanović SP, Arsenijević NN, Holclajtner-Antunović ID, Milosavljević M, Dramićanin M, Lukić ML, Trajković VS, Bumbaširević VŽ. Ultrastructural Analysis of Large Graphene Quantum Dots Internalization in Hepatocytes. in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia. 2018;:272-274.
https://hdl.handle.net/21.15107/rcub_vinar_8741 .

Ćirić, Darko, Martinović, Tamara, Kravić-Stevović, Tamara K., Volarević, Vladislav, Paunović, Verica G., Marković, Zoran M., Marković-Simović, Bojana, Misirkić-Marjanović, Maja, Todorović-Marković, Biljana, Bojić, Sanja, Vučićević, Ljubica, Jovanović, Svetlana P., Arsenijević, Nebojša N., Holclajtner-Antunović, Ivanka D., Milosavljević, Momir, Dramićanin, Miroslav, Lukić, Miodrag L., Trajković, Vladimir S., Bumbaširević, Vladimir Ž., "Ultrastructural Analysis of Large Graphene Quantum Dots Internalization in Hepatocytes" in Program and Book of Abstracts / First International Conference on Electron Microscopy of Nanostructures ELMINA 2018, August 27-29, 2018, Belgrade, Serbia (2018):272-274,
https://hdl.handle.net/21.15107/rcub_vinar_8741 .

TY  - CONF
AU  - Pantić, Tijana
AU  - Milanović, Igor
AU  - Lukić, Miodrag
AU  - Grbović-Novaković, Jasmina
AU  - Kurko, Sandra V.
AU  - Biliškov, Nikola
AU  - Milošević, Sanja S.
PY  - 2017
UR  - http://dais.sanu.ac.rs/123456789/15451
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7559
AB  - Magnesium hydride, as hydrogen storage material, meets the requirements such as high gravimetric hydrogen capacity (7,6 wt%), low cost and weight, abundance and H2 absorption/desorption cycling possibility. Given that the oxide additives show the good impact on desorption properties, mechanical milling of MgH2 with addition of 5, 10 and 15% wt. WO3 was performed. The microstructure and morphology of composites were analysed by XRD, PSD and SEM and correlated to hydrogen desorption properties which have been investigated by DSC. The results have shown that WO3 has a positive effect on the desorption kinetics as well as on the change of the desorption mechanism.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
T1  - Is WO3 catalyst for hydrogen desorption?
SP  - 50
EP  - 50
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7559
ER  - 

@conference{
editor = "Marković, Smilja",
author = "Pantić, Tijana and Milanović, Igor and Lukić, Miodrag and Grbović-Novaković, Jasmina and Kurko, Sandra V. and Biliškov, Nikola and Milošević, Sanja S.",
year = "2017",
abstract = "Magnesium hydride, as hydrogen storage material, meets the requirements such as high gravimetric hydrogen capacity (7,6 wt%), low cost and weight, abundance and H2 absorption/desorption cycling possibility. Given that the oxide additives show the good impact on desorption properties, mechanical milling of MgH2 with addition of 5, 10 and 15% wt. WO3 was performed. The microstructure and morphology of composites were analysed by XRD, PSD and SEM and correlated to hydrogen desorption properties which have been investigated by DSC. The results have shown that WO3 has a positive effect on the desorption kinetics as well as on the change of the desorption mechanism.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia",
title = "Is WO3 catalyst for hydrogen desorption?",
pages = "50-50",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7559"
}

Marković, S., Pantić, T., Milanović, I., Lukić, M., Grbović-Novaković, J., Kurko, S. V., Biliškov, N.,& Milošević, S. S.. (2017). Is WO3 catalyst for hydrogen desorption?. in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 50-50.
https://hdl.handle.net/21.15107/rcub_vinar_7559

Marković S, Pantić T, Milanović I, Lukić M, Grbović-Novaković J, Kurko SV, Biliškov N, Milošević SS. Is WO3 catalyst for hydrogen desorption?. in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia. 2017;:50-50.
https://hdl.handle.net/21.15107/rcub_vinar_7559 .

Marković, Smilja, Pantić, Tijana, Milanović, Igor, Lukić, Miodrag, Grbović-Novaković, Jasmina, Kurko, Sandra V., Biliškov, Nikola, Milošević, Sanja S., "Is WO3 catalyst for hydrogen desorption?" in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia (2017):50-50,
https://hdl.handle.net/21.15107/rcub_vinar_7559 .

TY  - CONF
AU  - Omerašević, Mia
AU  - Lukić, Miodrag
AU  - Baščarević, Zvezdana D.
AU  - Orlić, Jovana
AU  - Mirković, Miljana M.
AU  - Savić-Biserčić, Marjetka
AU  - Matović, Ljiljana
PY  - 2015
UR  - http://dais.sanu.ac.rs/123456789/837
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7544
AB  - Cesium aluminosilicate phases are of the great interest as possible host for Cs immobilization in radioactive waste management. The possibility to use zeolite as a host material for radioactive Cs immobilization was investigated. Cs-exchanged forms of clinoptilolite and 13X which were prepared by ion-exchange treatment were compacted. The powders compacts of exchanged zeolites were thermally treated at 1200 °C. The XRD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium-aluminosilicate ceramic forms. Thermal and mechanical properties of the sintered samples were investigated. From the perspective of these characteristics, Cs-exchanged zeolite (clinoptilolite and 13 X) can be considered as a potential material for safe waste disposal.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia
T1  - Safe trapping of Cs radionuclides in sintered matrix of zeolites
SP  - 45
EP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7544
ER  - 

@conference{
author = "Omerašević, Mia and Lukić, Miodrag and Baščarević, Zvezdana D. and Orlić, Jovana and Mirković, Miljana M. and Savić-Biserčić, Marjetka and Matović, Ljiljana",
year = "2015",
abstract = "Cesium aluminosilicate phases are of the great interest as possible host for Cs immobilization in radioactive waste management. The possibility to use zeolite as a host material for radioactive Cs immobilization was investigated. Cs-exchanged forms of clinoptilolite and 13X which were prepared by ion-exchange treatment were compacted. The powders compacts of exchanged zeolites were thermally treated at 1200 °C. The XRD analysis showed that Cs was successfully immobilized after heat treatment by formation of stable cesium-aluminosilicate ceramic forms. Thermal and mechanical properties of the sintered samples were investigated. From the perspective of these characteristics, Cs-exchanged zeolite (clinoptilolite and 13 X) can be considered as a potential material for safe waste disposal.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia",
title = "Safe trapping of Cs radionuclides in sintered matrix of zeolites",
pages = "45-45",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7544"
}

Omerašević, M., Lukić, M., Baščarević, Z. D., Orlić, J., Mirković, M. M., Savić-Biserčić, M.,& Matović, L.. (2015). Safe trapping of Cs radionuclides in sintered matrix of zeolites. in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 45-45.
https://hdl.handle.net/21.15107/rcub_vinar_7544

Omerašević M, Lukić M, Baščarević ZD, Orlić J, Mirković MM, Savić-Biserčić M, Matović L. Safe trapping of Cs radionuclides in sintered matrix of zeolites. in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia. 2015;:45-45.
https://hdl.handle.net/21.15107/rcub_vinar_7544 .

Omerašević, Mia, Lukić, Miodrag, Baščarević, Zvezdana D., Orlić, Jovana, Mirković, Miljana M., Savić-Biserčić, Marjetka, Matović, Ljiljana, "Safe trapping of Cs radionuclides in sintered matrix of zeolites" in Program and the Book of Abstracts / Fourteenth Young Researchers' Conference Materials Sciences and Engineering, December 9-11, 2015, Belgrade, Serbia (2015):45-45,
https://hdl.handle.net/21.15107/rcub_vinar_7544 .

TY  - CONF
AU  - Veselinović, Ljiljana M.
AU  - Marković, Smilja
AU  - Lukić, Miodrag
AU  - Mančić, Lidija
AU  - Škapin, Srečo Davor
AU  - Mitrić, Miodrag
AU  - Uskoković, Dragan
PY  - 2014
UR  - http://dais.sanu.ac.rs/123456789/562
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7478
AB  - Perovskite-related materials with the general formula AC3B4O12 have great technological significance due to their specific physical properties. The crystal structure of AC3B4O12 compounds is cubic with Im3 symmetry. Different cations can occupy A and B sites, while the C site is commonly occupied by Cu2+ or Mn3+ ions. It has been found that the nature of B cation changes the physical properties of the material. In our previous studies we dealt with CaCu3Ti4O12 (CCTO) and CaCu3Ru4O12 (CCRO) compounds. CCTO has the gigantic permittivity of 104105 in the kilohertz region and good stability over the temperature range from -170 to 330 °C. While Ti-compound is semiconductor, the Ru one is conductive oxide and could be used as interfaces between CCTO and metallic electrodes. Thus, CCTO and CCRO have potential application for preparation of layer capacitors with CCRO as the electrode and CCTO as the dielectric material. Since the oxygen vacancies and/or intrinsic defects in perovskites have a crucial role in the physical properties it is important to determine crystal structure of ceramic materials. In this work, a detailed structural investigation of CCTO and CCRO perovskites was performed. The powders were prepared by precipitation and successive calcination at 1100 °C with 3 h dwell time to obtained single phased materials. The phase composition and crystal structure of synthesized powders were studied by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), selected-area electron diffraction (SAED) and Raman spectroscopy analyses. Rietveld refinement of XRD data was used to calculate the powders stoichiometry. Furthermore, since the XRD method is not adequate for determination of oxygen atoms due to their small scattering factors, to confirm the (oxygen-) stoichiometry of the ceramic powders, thermogravimetric (TG) measurements were employed. Two sets of experiments were performed; powders were heated in a flowing: (1) air atmosphere, and (2) reducing atmosphere (mixture of 5% H2 with Ar; 20 ml/min), to 1100 °C with a heating rate 10 °C/min with 3 h dwell time. TG measurements were performed on system coupled to a quadrupole mass spectrometer used for determination of volatile compounds. The weight losses measured by TG, in two different atmospheres, were compared; minor deviations in stoichiometries of CaCu3B4O12 compounds determined by Rietveld refinement were corrected.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
T1  - Structural investigation of CaCu3B4O12 (B = Ti, Ru)
SP  - 67
EP  - 67
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7478
ER  - 

@conference{
author = "Veselinović, Ljiljana M. and Marković, Smilja and Lukić, Miodrag and Mančić, Lidija and Škapin, Srečo Davor and Mitrić, Miodrag and Uskoković, Dragan",
year = "2014",
abstract = "Perovskite-related materials with the general formula AC3B4O12 have great technological significance due to their specific physical properties. The crystal structure of AC3B4O12 compounds is cubic with Im3 symmetry. Different cations can occupy A and B sites, while the C site is commonly occupied by Cu2+ or Mn3+ ions. It has been found that the nature of B cation changes the physical properties of the material. In our previous studies we dealt with CaCu3Ti4O12 (CCTO) and CaCu3Ru4O12 (CCRO) compounds. CCTO has the gigantic permittivity of 104105 in the kilohertz region and good stability over the temperature range from -170 to 330 °C. While Ti-compound is semiconductor, the Ru one is conductive oxide and could be used as interfaces between CCTO and metallic electrodes. Thus, CCTO and CCRO have potential application for preparation of layer capacitors with CCRO as the electrode and CCTO as the dielectric material. Since the oxygen vacancies and/or intrinsic defects in perovskites have a crucial role in the physical properties it is important to determine crystal structure of ceramic materials. In this work, a detailed structural investigation of CCTO and CCRO perovskites was performed. The powders were prepared by precipitation and successive calcination at 1100 °C with 3 h dwell time to obtained single phased materials. The phase composition and crystal structure of synthesized powders were studied by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), high-resolution TEM (HRTEM), selected-area electron diffraction (SAED) and Raman spectroscopy analyses. Rietveld refinement of XRD data was used to calculate the powders stoichiometry. Furthermore, since the XRD method is not adequate for determination of oxygen atoms due to their small scattering factors, to confirm the (oxygen-) stoichiometry of the ceramic powders, thermogravimetric (TG) measurements were employed. Two sets of experiments were performed; powders were heated in a flowing: (1) air atmosphere, and (2) reducing atmosphere (mixture of 5% H2 with Ar; 20 ml/min), to 1100 °C with a heating rate 10 °C/min with 3 h dwell time. TG measurements were performed on system coupled to a quadrupole mass spectrometer used for determination of volatile compounds. The weight losses measured by TG, in two different atmospheres, were compared; minor deviations in stoichiometries of CaCu3B4O12 compounds determined by Rietveld refinement were corrected.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts",
title = "Structural investigation of CaCu3B4O12 (B = Ti, Ru)",
pages = "67-67",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7478"
}

Veselinović, L. M., Marković, S., Lukić, M., Mančić, L., Škapin, S. D., Mitrić, M.,& Uskoković, D.. (2014). Structural investigation of CaCu3B4O12 (B = Ti, Ru). in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 67-67.
https://hdl.handle.net/21.15107/rcub_vinar_7478

Veselinović LM, Marković S, Lukić M, Mančić L, Škapin SD, Mitrić M, Uskoković D. Structural investigation of CaCu3B4O12 (B = Ti, Ru). in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts. 2014;:67-67.
https://hdl.handle.net/21.15107/rcub_vinar_7478 .

Veselinović, Ljiljana M., Marković, Smilja, Lukić, Miodrag, Mančić, Lidija, Škapin, Srečo Davor, Mitrić, Miodrag, Uskoković, Dragan, "Structural investigation of CaCu3B4O12 (B = Ti, Ru)" in The Sixteenth Annual Conference YUCOMAT 2014: Programme and the Book of Abstracts (2014):67-67,
https://hdl.handle.net/21.15107/rcub_vinar_7478 .

TY  - JOUR
AU  - Lukić, Miodrag
AU  - Veselinović, Ljiljana M.
AU  - Stojanović, Zoran S.
AU  - Maček Kržmanc, Marjeta
AU  - Bračko, Ines
AU  - Škapin, Srečo Davor
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/476
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7447
AB  - We report unusual sintering behavior of Ca-deficient hydroxyapatite processed with different heating rates; particularly, faster heating resulted in higher densification. We hypothesize that faster heating delays formation of β-tricalcium phosphate which yields to unobstructed densification in intermediate sintering stage, allowing further tailoring of both microstructure and phase composition (hydroxyapatite/tricalcium phosphate).
PB  - Elsevier
T2  - Materials Letters
T1  - Peculiarities in sintering behavior of Ca-deficient hydroxyapatite nanopowders
SP  - 331
EP  - 335
DO  - 10.1016/j.matlet.2011.10.085
ER  - 

@article{
author = "Lukić, Miodrag and Veselinović, Ljiljana M. and Stojanović, Zoran S. and Maček Kržmanc, Marjeta and Bračko, Ines and Škapin, Srečo Davor and Marković, Smilja and Uskoković, Dragan",
year = "2012",
abstract = "We report unusual sintering behavior of Ca-deficient hydroxyapatite processed with different heating rates; particularly, faster heating resulted in higher densification. We hypothesize that faster heating delays formation of β-tricalcium phosphate which yields to unobstructed densification in intermediate sintering stage, allowing further tailoring of both microstructure and phase composition (hydroxyapatite/tricalcium phosphate).",
publisher = "Elsevier",
journal = "Materials Letters",
title = "Peculiarities in sintering behavior of Ca-deficient hydroxyapatite nanopowders",
pages = "331-335",
doi = "10.1016/j.matlet.2011.10.085"
}

Lukić, M., Veselinović, L. M., Stojanović, Z. S., Maček Kržmanc, M., Bračko, I., Škapin, S. D., Marković, S.,& Uskoković, D.. (2012). Peculiarities in sintering behavior of Ca-deficient hydroxyapatite nanopowders. in Materials Letters
Elsevier., 331-335.
https://doi.org/10.1016/j.matlet.2011.10.085

Lukić M, Veselinović LM, Stojanović ZS, Maček Kržmanc M, Bračko I, Škapin SD, Marković S, Uskoković D. Peculiarities in sintering behavior of Ca-deficient hydroxyapatite nanopowders. in Materials Letters. 2012;:331-335.
doi:10.1016/j.matlet.2011.10.085 .

Lukić, Miodrag, Veselinović, Ljiljana M., Stojanović, Zoran S., Maček Kržmanc, Marjeta, Bračko, Ines, Škapin, Srečo Davor, Marković, Smilja, Uskoković, Dragan, "Peculiarities in sintering behavior of Ca-deficient hydroxyapatite nanopowders" in Materials Letters (2012):331-335,
https://doi.org/10.1016/j.matlet.2011.10.085 . .

TY  - CONF
AU  - Lukić, Miodrag
AU  - Marković, Smilja
AU  - Škapin, Srečo Davor
AU  - Uskoković, Dragan
PY  - 2012
UR  - http://dais.sanu.ac.rs/123456789/510
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7463
AB  - Doping of hydroxyapatite crystal structure with various ions is generally performed to improve biological, electrical, optical and mechanical properties of initial system. In this study, hydroxyapatite nanopowders doped with different amounts of zirconium (0, 1, 5, 10 at. %) have been sintered at different temperatures. Phase and microstructural evolution were examined by X-ray diffraction studies and field emission scanning electron microscopy.
PB  - Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade
C3  - Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts
T1  - Phase and microstructural evolution during sintering of Zr-doped hydroxyapatite
SP  - 44
EP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7463
ER  - 

@conference{
author = "Lukić, Miodrag and Marković, Smilja and Škapin, Srečo Davor and Uskoković, Dragan",
year = "2012",
abstract = "Doping of hydroxyapatite crystal structure with various ions is generally performed to improve biological, electrical, optical and mechanical properties of initial system. In this study, hydroxyapatite nanopowders doped with different amounts of zirconium (0, 1, 5, 10 at. %) have been sintered at different temperatures. Phase and microstructural evolution were examined by X-ray diffraction studies and field emission scanning electron microscopy.",
publisher = "Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade",
journal = "Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts",
title = "Phase and microstructural evolution during sintering of Zr-doped hydroxyapatite",
pages = "44-44",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7463"
}

Lukić, M., Marković, S., Škapin, S. D.,& Uskoković, D.. (2012). Phase and microstructural evolution during sintering of Zr-doped hydroxyapatite. in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts
Belgrade : Materials Research Society of Serbia; Institute of Technical Sciences of SASA; Vinča Institute of Nuclear Sciences, University of Belgrade., 44-44.
https://hdl.handle.net/21.15107/rcub_vinar_7463

Lukić M, Marković S, Škapin SD, Uskoković D. Phase and microstructural evolution during sintering of Zr-doped hydroxyapatite. in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts. 2012;:44-44.
https://hdl.handle.net/21.15107/rcub_vinar_7463 .

Lukić, Miodrag, Marković, Smilja, Škapin, Srečo Davor, Uskoković, Dragan, "Phase and microstructural evolution during sintering of Zr-doped hydroxyapatite" in Joint Event of the 11th Young Researchers’ Conference: Materials Science and Engineering and the 1st European Early Stage Researches’ Conference on Hydrogen Storage: Program and the Book of Abstracts (2012):44-44,
https://hdl.handle.net/21.15107/rcub_vinar_7463 .

TY  - CONF
AU  - Stojanović, Zoran S.
AU  - Lukić, Miodrag
AU  - Veselinović, Ljiljana M.
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/687
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7510
AB  - Aim of work is to investigate an efficiency of hydrothermal treatment on formation of zirconium substituted hydroxyapatite Ca5-xZrx(PO4)3OH. A set of trial was conducted to optimize process and find substitution limit. Molar ratio of Zr/(Ca+Zr) in precursor suspension was varied from 0 to 0.2 with step of 0.05. Powders were analyzed by means of techniques such as XRD, Fourier transform IR spectroscopy, ICP, laser - diffraction granulometry and SEM.
PB  - Belgrade : Materials Research Society of Serbia
C3  - The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
T1  - Hydrothermal synthesis of zirconium substituted hydroxyapatite
SP  - 74
EP  - 74
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7510
ER  - 

@conference{
author = "Stojanović, Zoran S. and Lukić, Miodrag and Veselinović, Ljiljana M. and Marković, Smilja and Uskoković, Dragan",
year = "2011",
abstract = "Aim of work is to investigate an efficiency of hydrothermal treatment on formation of zirconium substituted hydroxyapatite Ca5-xZrx(PO4)3OH. A set of trial was conducted to optimize process and find substitution limit. Molar ratio of Zr/(Ca+Zr) in precursor suspension was varied from 0 to 0.2 with step of 0.05. Powders were analyzed by means of techniques such as XRD, Fourier transform IR spectroscopy, ICP, laser - diffraction granulometry and SEM.",
publisher = "Belgrade : Materials Research Society of Serbia",
journal = "The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts",
title = "Hydrothermal synthesis of zirconium substituted hydroxyapatite",
pages = "74-74",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7510"
}

Stojanović, Z. S., Lukić, M., Veselinović, L. M., Marković, S.,& Uskoković, D.. (2011). Hydrothermal synthesis of zirconium substituted hydroxyapatite. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts
Belgrade : Materials Research Society of Serbia., 74-74.
https://hdl.handle.net/21.15107/rcub_vinar_7510

Stojanović ZS, Lukić M, Veselinović LM, Marković S, Uskoković D. Hydrothermal synthesis of zirconium substituted hydroxyapatite. in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts. 2011;:74-74.
https://hdl.handle.net/21.15107/rcub_vinar_7510 .

Stojanović, Zoran S., Lukić, Miodrag, Veselinović, Ljiljana M., Marković, Smilja, Uskoković, Dragan, "Hydrothermal synthesis of zirconium substituted hydroxyapatite" in The Thirteenth Annual Conference YUCOMAT 2011: Programme and the Book of Abstracts (2011):74-74,
https://hdl.handle.net/21.15107/rcub_vinar_7510 .

TY  - CONF
AU  - Stojanović, Zoran S.
AU  - Lukić, Miodrag
AU  - Uskoković, Dragan
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/699
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7520
AB  - A highly hydrophobic oleic acid functionalized hydroxyapatite nanoparticles were obtained by the solvothermal method. Water solutions of reactants were added in mixture of oleic acid, triethanolamine and ethanol, which was then treated in Teflon lined autoclave. The chemical composition, size and morphology of as obtained particles were determined using XRD, FT IR, FE SEM and LD PSA. In addition, sintering behaviour and microstructure of prepared material were also examined.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
T1  - One–pot synthesis of hydrophobic hydroxyapatite nano particles
SP  - 2
EP  - 2
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7520
ER  - 

@conference{
author = "Stojanović, Zoran S. and Lukić, Miodrag and Uskoković, Dragan",
year = "2011",
abstract = "A highly hydrophobic oleic acid functionalized hydroxyapatite nanoparticles were obtained by the solvothermal method. Water solutions of reactants were added in mixture of oleic acid, triethanolamine and ethanol, which was then treated in Teflon lined autoclave. The chemical composition, size and morphology of as obtained particles were determined using XRD, FT IR, FE SEM and LD PSA. In addition, sintering behaviour and microstructure of prepared material were also examined.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia",
title = "One–pot synthesis of hydrophobic hydroxyapatite nano particles",
pages = "2-2",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7520"
}

Stojanović, Z. S., Lukić, M.,& Uskoković, D.. (2011). One–pot synthesis of hydrophobic hydroxyapatite nano particles. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 2-2.
https://hdl.handle.net/21.15107/rcub_vinar_7520

Stojanović ZS, Lukić M, Uskoković D. One–pot synthesis of hydrophobic hydroxyapatite nano particles. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia. 2011;:2-2.
https://hdl.handle.net/21.15107/rcub_vinar_7520 .

Stojanović, Zoran S., Lukić, Miodrag, Uskoković, Dragan, "One–pot synthesis of hydrophobic hydroxyapatite nano particles" in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia (2011):2-2,
https://hdl.handle.net/21.15107/rcub_vinar_7520 .

TY  - CONF
AU  - Stojanović, Zoran S.
AU  - Lukić, Miodrag
AU  - Veselinović, Ljiljana M.
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/160
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7355
AB  - Poster presented at the 13th Annual Conference of the Materials Research Society of Serbia - YUCOMAT 2011, Herceg Novi, Crna Gora, 5–9. septembar 2011.
T1  - Hydrothermal Synthesis of Zirconium-Substituted Hydroxyapatite
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7355
ER  - 

@conference{
author = "Stojanović, Zoran S. and Lukić, Miodrag and Veselinović, Ljiljana M. and Marković, Smilja and Uskoković, Dragan",
year = "2011",
abstract = "Poster presented at the 13th Annual Conference of the Materials Research Society of Serbia - YUCOMAT 2011, Herceg Novi, Crna Gora, 5–9. septembar 2011.",
title = "Hydrothermal Synthesis of Zirconium-Substituted Hydroxyapatite",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7355"
}

Stojanović, Z. S., Lukić, M., Veselinović, L. M., Marković, S.,& Uskoković, D.. (2011). Hydrothermal Synthesis of Zirconium-Substituted Hydroxyapatite. .
https://hdl.handle.net/21.15107/rcub_vinar_7355

Stojanović ZS, Lukić M, Veselinović LM, Marković S, Uskoković D. Hydrothermal Synthesis of Zirconium-Substituted Hydroxyapatite. 2011;.
https://hdl.handle.net/21.15107/rcub_vinar_7355 .

Stojanović, Zoran S., Lukić, Miodrag, Veselinović, Ljiljana M., Marković, Smilja, Uskoković, Dragan, "Hydrothermal Synthesis of Zirconium-Substituted Hydroxyapatite" (2011),
https://hdl.handle.net/21.15107/rcub_vinar_7355 .

TY  - CONF
AU  - Lukić, Miodrag
AU  - Škapin, Srečo Davor
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/696
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7517
AB  - Improving of material characteristics could be achieved in different ways, but it is always connected with the issue of impairing the other functional properties. Hydroxyapatite bioceramics lacks of insufficient mechanical properties for load-bearing implant applications. Nowadays, making of composites, nanostructuring and doping of basic material are some of the promising pathways for hydroxyapatite toughening. Until now, Zr is not considered as fortifying dopant in hydroxyapatite based materials. However, it could be interesting in the sense of nontoxicity, preserved biocompatibility and incorporation in hydroxyapatite crystal lattice since it possesses lower crystalographic radius. In this study, preliminary experiments of chemical precipitation are performed to obtain hydroxyapatite with various Zr content. The crystal phase composition, particle size and morphology changes compared to pure hydroxyapatite are studied. Sintering is performed to find appropriate conditions for fabrication of dense material. Vickers hardness and fracture toughness were also measured.
PB  - Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts
C3  - Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
T1  - Synthesis, characterization and sintering properties of Zr-doped hydroxyapatite
SP  - 1
EP  - 1
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7517
ER  - 

@conference{
author = "Lukić, Miodrag and Škapin, Srečo Davor and Marković, Smilja and Uskoković, Dragan",
year = "2011",
abstract = "Improving of material characteristics could be achieved in different ways, but it is always connected with the issue of impairing the other functional properties. Hydroxyapatite bioceramics lacks of insufficient mechanical properties for load-bearing implant applications. Nowadays, making of composites, nanostructuring and doping of basic material are some of the promising pathways for hydroxyapatite toughening. Until now, Zr is not considered as fortifying dopant in hydroxyapatite based materials. However, it could be interesting in the sense of nontoxicity, preserved biocompatibility and incorporation in hydroxyapatite crystal lattice since it possesses lower crystalographic radius. In this study, preliminary experiments of chemical precipitation are performed to obtain hydroxyapatite with various Zr content. The crystal phase composition, particle size and morphology changes compared to pure hydroxyapatite are studied. Sintering is performed to find appropriate conditions for fabrication of dense material. Vickers hardness and fracture toughness were also measured.",
publisher = "Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts",
journal = "Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia",
title = "Synthesis, characterization and sintering properties of Zr-doped hydroxyapatite",
pages = "1-1",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7517"
}

Lukić, M., Škapin, S. D., Marković, S.,& Uskoković, D.. (2011). Synthesis, characterization and sintering properties of Zr-doped hydroxyapatite. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of the Serbian Academy of Sciences and Arts., 1-1.
https://hdl.handle.net/21.15107/rcub_vinar_7517

Lukić M, Škapin SD, Marković S, Uskoković D. Synthesis, characterization and sintering properties of Zr-doped hydroxyapatite. in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia. 2011;:1-1.
https://hdl.handle.net/21.15107/rcub_vinar_7517 .

Lukić, Miodrag, Škapin, Srečo Davor, Marković, Smilja, Uskoković, Dragan, "Synthesis, characterization and sintering properties of Zr-doped hydroxyapatite" in Program and the Book of Abstracts / Tenth Young Researchers' Conference Materials Science and Engineering, December 21-23, 2011, Belgrade, Serbia (2011):1-1,
https://hdl.handle.net/21.15107/rcub_vinar_7517 .

TY  - JOUR
AU  - Marković, Smilja
AU  - Veselinović, Ljiljana M.
AU  - Lukić, Miodrag
AU  - Karanović, Ljiljana
AU  - Bračko, Ines
AU  - Ignjatović, Nenad L.
AU  - Uskoković, Dragan
PY  - 2011
UR  - http://dais.sanu.ac.rs/123456789/731
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7522
AB  - Phase composition, crystal structure and morphology of biological hydroxyapatite (BHAp) extracted from human mandible bone, and carbonated hydroxyapatite (CHAp), synthesized by the chemical precipitation method, were studied by x-ray powder diffraction (XRD), Fourier transform infrared (FTIR) and Raman (R) spectroscopy techniques, combined with transmission electron microscopy (TEM). Structural and microstructural parameters were determined through Rietveld refinement of recorded XRD data, performed using the FullProf computing program, and TEM. Microstructural analysis shows anisotropic extension along the [0 0 l] crystallographic direction (i.e. elongated crystallites shape) of both investigated samples. The average crystallite sizes of 10 and 8 nm were estimated for BHAp and CHAp, respectively. The FTIR and R spectroscopy studies show that carbonate ions substitute both phosphate and hydroxyl ions in the crystal structure of BHAp as well as in CHAp, indicating that both of them are mixed AB-type of CHAp. The thermal behaviour and carbonate content were analysed using thermogravimetric and differential thermal analysis. The carbonate content of about 1 wt.% and phase transition, at near 790 °C, from HAp to β-tricalcium phosphate were determined in both samples. The quality of synthesized CHAp powder, particularly, the particle size distribution and uniformity of morphology, was analysed by a particle size analyser based on laser diffraction and field emission scanning electron microscopy, respectively. These data were used to discuss similarity between natural and synthetic CHAp. Good correlation between the unit cell parameters, average crystallite size, morphology, carbonate content and crystallographic positions of carbonate ions in natural and synthetic HAp samples was found.
PB  - IOP Publishing
T2  - Biomedical Materials
T1  - Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology
EP  - Art. No. 045005
DO  - 10.1088/1748-6041/6/4/045005
ER  - 

@article{
author = "Marković, Smilja and Veselinović, Ljiljana M. and Lukić, Miodrag and Karanović, Ljiljana and Bračko, Ines and Ignjatović, Nenad L. and Uskoković, Dragan",
year = "2011",
abstract = "Phase composition, crystal structure and morphology of biological hydroxyapatite (BHAp) extracted from human mandible bone, and carbonated hydroxyapatite (CHAp), synthesized by the chemical precipitation method, were studied by x-ray powder diffraction (XRD), Fourier transform infrared (FTIR) and Raman (R) spectroscopy techniques, combined with transmission electron microscopy (TEM). Structural and microstructural parameters were determined through Rietveld refinement of recorded XRD data, performed using the FullProf computing program, and TEM. Microstructural analysis shows anisotropic extension along the [0 0 l] crystallographic direction (i.e. elongated crystallites shape) of both investigated samples. The average crystallite sizes of 10 and 8 nm were estimated for BHAp and CHAp, respectively. The FTIR and R spectroscopy studies show that carbonate ions substitute both phosphate and hydroxyl ions in the crystal structure of BHAp as well as in CHAp, indicating that both of them are mixed AB-type of CHAp. The thermal behaviour and carbonate content were analysed using thermogravimetric and differential thermal analysis. The carbonate content of about 1 wt.% and phase transition, at near 790 °C, from HAp to β-tricalcium phosphate were determined in both samples. The quality of synthesized CHAp powder, particularly, the particle size distribution and uniformity of morphology, was analysed by a particle size analyser based on laser diffraction and field emission scanning electron microscopy, respectively. These data were used to discuss similarity between natural and synthetic CHAp. Good correlation between the unit cell parameters, average crystallite size, morphology, carbonate content and crystallographic positions of carbonate ions in natural and synthetic HAp samples was found.",
publisher = "IOP Publishing",
journal = "Biomedical Materials",
title = "Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology",
pages = "Art. No. 045005",
doi = "10.1088/1748-6041/6/4/045005"
}

Marković, S., Veselinović, L. M., Lukić, M., Karanović, L., Bračko, I., Ignjatović, N. L.,& Uskoković, D.. (2011). Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology. in Biomedical Materials
IOP Publishing..
https://doi.org/10.1088/1748-6041/6/4/045005

Marković S, Veselinović LM, Lukić M, Karanović L, Bračko I, Ignjatović NL, Uskoković D. Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology. in Biomedical Materials. 2011;:null-Art. No. 045005.
doi:10.1088/1748-6041/6/4/045005 .

Marković, Smilja, Veselinović, Ljiljana M., Lukić, Miodrag, Karanović, Ljiljana, Bračko, Ines, Ignjatović, Nenad L., Uskoković, Dragan, "Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology" in Biomedical Materials (2011),
https://doi.org/10.1088/1748-6041/6/4/045005 . .

TY  - CONF
AU  - Lukić, Miodrag
AU  - Stojanović, Zoran S.
AU  - Veselinović, Ljiljana M.
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2010
UR  - http://dais.sanu.ac.rs/123456789/239
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7368
AB  - Poster presented at the 12th Annual Conference of the Materials Research Society of Serbia - YUCOMAT 2010, Herceg Novi, Montenegro, September 6–10, 2010
T1  - Influence of heating rate on two-step sintering behaviour of different hydroxyapatite nanopowders
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7368
ER  - 

@conference{
author = "Lukić, Miodrag and Stojanović, Zoran S. and Veselinović, Ljiljana M. and Marković, Smilja and Uskoković, Dragan",
year = "2010",
abstract = "Poster presented at the 12th Annual Conference of the Materials Research Society of Serbia - YUCOMAT 2010, Herceg Novi, Montenegro, September 6–10, 2010",
title = "Influence of heating rate on two-step sintering behaviour of different hydroxyapatite nanopowders",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7368"
}

Lukić, M., Stojanović, Z. S., Veselinović, L. M., Marković, S.,& Uskoković, D.. (2010). Influence of heating rate on two-step sintering behaviour of different hydroxyapatite nanopowders. .
https://hdl.handle.net/21.15107/rcub_vinar_7368

Lukić M, Stojanović ZS, Veselinović LM, Marković S, Uskoković D. Influence of heating rate on two-step sintering behaviour of different hydroxyapatite nanopowders. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_7368 .

Lukić, Miodrag, Stojanović, Zoran S., Veselinović, Ljiljana M., Marković, Smilja, Uskoković, Dragan, "Influence of heating rate on two-step sintering behaviour of different hydroxyapatite nanopowders" (2010),
https://hdl.handle.net/21.15107/rcub_vinar_7368 .

TY  - CONF
AU  - Lukić, Miodrag
AU  - Stojanović, Zoran S.
AU  - Veselinović, Ljiljana M.
AU  - Bračko, Ines
AU  - Škapin, Srečo Davor
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2010
UR  - http://dais.sanu.ac.rs/123456789/240
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7369
AB  - Poster presented at the Adriatic School of Nanoscience – ASON-1, Dubrovnik, Croatia, September 19–23, 2010
T1  - Full density calcium phosphate bioceramics from nanopowders by sintering
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7369
ER  - 

@conference{
author = "Lukić, Miodrag and Stojanović, Zoran S. and Veselinović, Ljiljana M. and Bračko, Ines and Škapin, Srečo Davor and Marković, Smilja and Uskoković, Dragan",
year = "2010",
abstract = "Poster presented at the Adriatic School of Nanoscience – ASON-1, Dubrovnik, Croatia, September 19–23, 2010",
title = "Full density calcium phosphate bioceramics from nanopowders by sintering",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7369"
}

Lukić, M., Stojanović, Z. S., Veselinović, L. M., Bračko, I., Škapin, S. D., Marković, S.,& Uskoković, D.. (2010). Full density calcium phosphate bioceramics from nanopowders by sintering. .
https://hdl.handle.net/21.15107/rcub_vinar_7369

Lukić M, Stojanović ZS, Veselinović LM, Bračko I, Škapin SD, Marković S, Uskoković D. Full density calcium phosphate bioceramics from nanopowders by sintering. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_7369 .

Lukić, Miodrag, Stojanović, Zoran S., Veselinović, Ljiljana M., Bračko, Ines, Škapin, Srečo Davor, Marković, Smilja, Uskoković, Dragan, "Full density calcium phosphate bioceramics from nanopowders by sintering" (2010),
https://hdl.handle.net/21.15107/rcub_vinar_7369 .

TY  - CONF
AU  - Lukić, Miodrag
AU  - Stojanović, Zoran S.
AU  - Veselinović, Ljiljana M.
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2010
UR  - http://dais.sanu.ac.rs/123456789/241
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7370
AB  - Poster presented at the conference JUNIOR EUROMAT, Lausanne, Switzerland, 26–30. jul 2010.
T1  - Designing of dense nanostructured calcium-phosphate-based bioceramics
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7370
ER  - 

@conference{
author = "Lukić, Miodrag and Stojanović, Zoran S. and Veselinović, Ljiljana M. and Marković, Smilja and Uskoković, Dragan",
year = "2010",
abstract = "Poster presented at the conference JUNIOR EUROMAT, Lausanne, Switzerland, 26–30. jul 2010.",
title = "Designing of dense nanostructured calcium-phosphate-based bioceramics",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7370"
}

Lukić, M., Stojanović, Z. S., Veselinović, L. M., Marković, S.,& Uskoković, D.. (2010). Designing of dense nanostructured calcium-phosphate-based bioceramics. .
https://hdl.handle.net/21.15107/rcub_vinar_7370

Lukić M, Stojanović ZS, Veselinović LM, Marković S, Uskoković D. Designing of dense nanostructured calcium-phosphate-based bioceramics. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_7370 .

Lukić, Miodrag, Stojanović, Zoran S., Veselinović, Ljiljana M., Marković, Smilja, Uskoković, Dragan, "Designing of dense nanostructured calcium-phosphate-based bioceramics" (2010),
https://hdl.handle.net/21.15107/rcub_vinar_7370 .

TY  - CONF
AU  - Lukić, Miodrag
AU  - Stojanović, Zoran S.
AU  - Veselinović, Ljiljana M.
AU  - Škapin, Srečo Davor
AU  - Bračko, Ines
AU  - Marković, Smilja
AU  - Uskoković, Dragan
PY  - 2010
UR  - http://dais.sanu.ac.rs/123456789/250
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7376
AB  - Poster presented at the Workshop: Processing of Nanostructured Ceramics, Polymers, and Composites, Faculty of Technology and Metallurgy, University of Belgrade, November 29–30, 2010
T1  - Sintering of different hydroxyapatite nanopowders
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7376
ER  - 

@conference{
author = "Lukić, Miodrag and Stojanović, Zoran S. and Veselinović, Ljiljana M. and Škapin, Srečo Davor and Bračko, Ines and Marković, Smilja and Uskoković, Dragan",
year = "2010",
abstract = "Poster presented at the Workshop: Processing of Nanostructured Ceramics, Polymers, and Composites, Faculty of Technology and Metallurgy, University of Belgrade, November 29–30, 2010",
title = "Sintering of different hydroxyapatite nanopowders",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7376"
}

Lukić, M., Stojanović, Z. S., Veselinović, L. M., Škapin, S. D., Bračko, I., Marković, S.,& Uskoković, D.. (2010). Sintering of different hydroxyapatite nanopowders. .
https://hdl.handle.net/21.15107/rcub_vinar_7376

Lukić M, Stojanović ZS, Veselinović LM, Škapin SD, Bračko I, Marković S, Uskoković D. Sintering of different hydroxyapatite nanopowders. 2010;.
https://hdl.handle.net/21.15107/rcub_vinar_7376 .

Lukić, Miodrag, Stojanović, Zoran S., Veselinović, Ljiljana M., Škapin, Srečo Davor, Bračko, Ines, Marković, Smilja, Uskoković, Dragan, "Sintering of different hydroxyapatite nanopowders" (2010),
https://hdl.handle.net/21.15107/rcub_vinar_7376 .

TY  - CONF
AU  - Lukić, Miodrag
AU  - Marković, Smilja
AU  - Ignjatović, Nenad L.
AU  - Uskoković, Dragan
PY  - 2009
UR  - http://dais.sanu.ac.rs/123456789/268
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7382
AB  - Poster presented at the 11th Conference of the Materials Research Society of Serbia - YUCOMAT 2009, Herceg Novi, Montenegro, August 31 – September 4, 2009.
T1  - Precipitation Synthesis and Two-Step Sintering of Hydroxyapatite Nanopowders
UR  - https://hdl.handle.net/21.15107/rcub_vinar_7382
ER  - 

@conference{
author = "Lukić, Miodrag and Marković, Smilja and Ignjatović, Nenad L. and Uskoković, Dragan",
year = "2009",
abstract = "Poster presented at the 11th Conference of the Materials Research Society of Serbia - YUCOMAT 2009, Herceg Novi, Montenegro, August 31 – September 4, 2009.",
title = "Precipitation Synthesis and Two-Step Sintering of Hydroxyapatite Nanopowders",
url = "https://hdl.handle.net/21.15107/rcub_vinar_7382"
}

Lukić, M., Marković, S., Ignjatović, N. L.,& Uskoković, D.. (2009). Precipitation Synthesis and Two-Step Sintering of Hydroxyapatite Nanopowders. .
https://hdl.handle.net/21.15107/rcub_vinar_7382

Lukić M, Marković S, Ignjatović NL, Uskoković D. Precipitation Synthesis and Two-Step Sintering of Hydroxyapatite Nanopowders. 2009;.
https://hdl.handle.net/21.15107/rcub_vinar_7382 .

Lukić, Miodrag, Marković, Smilja, Ignjatović, Nenad L., Uskoković, Dragan, "Precipitation Synthesis and Two-Step Sintering of Hydroxyapatite Nanopowders" (2009),
https://hdl.handle.net/21.15107/rcub_vinar_7382 .