TY  - JOUR
AU  - Nikolić, Vladimir M.
AU  - Jokanović, Vukoman R.
AU  - Radić, Nenad
AU  - Grbic, B.
AU  - Jokanovic, B.
AU  - Izvonar, D.
PY  - 2009
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3679
AB  - The mechanism of the synthesis of silicon dioxide thin films on the surface of a stainless steel band substrate, by thermal spraying of a silica sol as a precursor was the subject of this work. The structural design of the hydro thermally obtained particles was defined as an organized structure of basic motives-silica tetrahedrons, over silica chains and finally sol particles, which were used as a well-defined precursor for the preparation of corresponding thin films. IR spectroscopy and TGA analysis were employed to define the structure of the silica tetrahedrons and the size of the silica chains in the sol particles. The thickness of the film and the dependence of the film morphology and structure on its surface and of its cross section were investigated. The mechanism of film formation and the differences on its appearance depending of the SiO2 sol concentration was also investigated. The sizes of the particles were 50 - 250 nm, while the agglomerate sizes were mostly 250 nm in diameter and 1 - 2 mu m in the length. The thicknesses of the films were 6.5 - 33 mu m.
T2  - Journal of Optoelectronics and Advanced Materials
T1  - SiO2 thin films obtained from silica sols by thermal spraying
VL  - 11
IS  - 3
SP  - 243
EP  - 250
UR  - https://hdl.handle.net/21.15107/rcub_vinar_3679
ER  - 

@article{
author = "Nikolić, Vladimir M. and Jokanović, Vukoman R. and Radić, Nenad and Grbic, B. and Jokanovic, B. and Izvonar, D.",
year = "2009",
abstract = "The mechanism of the synthesis of silicon dioxide thin films on the surface of a stainless steel band substrate, by thermal spraying of a silica sol as a precursor was the subject of this work. The structural design of the hydro thermally obtained particles was defined as an organized structure of basic motives-silica tetrahedrons, over silica chains and finally sol particles, which were used as a well-defined precursor for the preparation of corresponding thin films. IR spectroscopy and TGA analysis were employed to define the structure of the silica tetrahedrons and the size of the silica chains in the sol particles. The thickness of the film and the dependence of the film morphology and structure on its surface and of its cross section were investigated. The mechanism of film formation and the differences on its appearance depending of the SiO2 sol concentration was also investigated. The sizes of the particles were 50 - 250 nm, while the agglomerate sizes were mostly 250 nm in diameter and 1 - 2 mu m in the length. The thicknesses of the films were 6.5 - 33 mu m.",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "SiO2 thin films obtained from silica sols by thermal spraying",
volume = "11",
number = "3",
pages = "243-250",
url = "https://hdl.handle.net/21.15107/rcub_vinar_3679"
}

Nikolić, V. M., Jokanović, V. R., Radić, N., Grbic, B., Jokanovic, B.,& Izvonar, D.. (2009). SiO2 thin films obtained from silica sols by thermal spraying. in Journal of Optoelectronics and Advanced Materials, 11(3), 243-250.
https://hdl.handle.net/21.15107/rcub_vinar_3679

Nikolić VM, Jokanović VR, Radić N, Grbic B, Jokanovic B, Izvonar D. SiO2 thin films obtained from silica sols by thermal spraying. in Journal of Optoelectronics and Advanced Materials. 2009;11(3):243-250.
https://hdl.handle.net/21.15107/rcub_vinar_3679 .

Nikolić, Vladimir M., Jokanović, Vukoman R., Radić, Nenad, Grbic, B., Jokanovic, B., Izvonar, D., "SiO2 thin films obtained from silica sols by thermal spraying" in Journal of Optoelectronics and Advanced Materials, 11, no. 3 (2009):243-250,
https://hdl.handle.net/21.15107/rcub_vinar_3679 .

TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Jokanovic, B.
AU  - Marković, D.
AU  - Zivojinovic, V.
AU  - Pašalić, Snežana
AU  - Izvonar, D.
AU  - Plasvic, M.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3488
AB  - In this paper, the kinetics and sintering mechanism of hydro-thermally synthesized hydroxyapatite in the temperature range 900-1100 degrees C are presented. It was found that at 900 degrees C, the sintering process is very slow, whereas at 1000, 1050, and 1100 degrees C is much faster, caused by activated sintering with liquid phase/phase of solution on spots with concentrated material impurity and the formation of reaction/polyeutectic mixtures dominates. The activation energies of sintering were also determined. At all the investigated sintering temperatures, an approximate value of 90 kJ mol(-1) was found. (c) 2008 Elsevier B.V. All rights reserved.
T2  - Materials Chemistry and Physics
T1  - Kinetics and sintering mechanisms of hydro-thermally obtained hydroxyapatite
VL  - 111
IS  - 1
SP  - 180
EP  - 185
DO  - 10.1016/j.matchemphys.2008.04.005
ER  - 

@article{
author = "Jokanović, Vukoman R. and Jokanovic, B. and Marković, D. and Zivojinovic, V. and Pašalić, Snežana and Izvonar, D. and Plasvic, M.",
year = "2008",
abstract = "In this paper, the kinetics and sintering mechanism of hydro-thermally synthesized hydroxyapatite in the temperature range 900-1100 degrees C are presented. It was found that at 900 degrees C, the sintering process is very slow, whereas at 1000, 1050, and 1100 degrees C is much faster, caused by activated sintering with liquid phase/phase of solution on spots with concentrated material impurity and the formation of reaction/polyeutectic mixtures dominates. The activation energies of sintering were also determined. At all the investigated sintering temperatures, an approximate value of 90 kJ mol(-1) was found. (c) 2008 Elsevier B.V. All rights reserved.",
journal = "Materials Chemistry and Physics",
title = "Kinetics and sintering mechanisms of hydro-thermally obtained hydroxyapatite",
volume = "111",
number = "1",
pages = "180-185",
doi = "10.1016/j.matchemphys.2008.04.005"
}

Jokanović, V. R., Jokanovic, B., Marković, D., Zivojinovic, V., Pašalić, S., Izvonar, D.,& Plasvic, M.. (2008). Kinetics and sintering mechanisms of hydro-thermally obtained hydroxyapatite. in Materials Chemistry and Physics, 111(1), 180-185.
https://doi.org/10.1016/j.matchemphys.2008.04.005

Jokanović VR, Jokanovic B, Marković D, Zivojinovic V, Pašalić S, Izvonar D, Plasvic M. Kinetics and sintering mechanisms of hydro-thermally obtained hydroxyapatite. in Materials Chemistry and Physics. 2008;111(1):180-185.
doi:10.1016/j.matchemphys.2008.04.005 .

Jokanović, Vukoman R., Jokanovic, B., Marković, D., Zivojinovic, V., Pašalić, Snežana, Izvonar, D., Plasvic, M., "Kinetics and sintering mechanisms of hydro-thermally obtained hydroxyapatite" in Materials Chemistry and Physics, 111, no. 1 (2008):180-185,
https://doi.org/10.1016/j.matchemphys.2008.04.005 . .

TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Jokanovic, B.
AU  - Izvonar, D.
AU  - Dacic, B.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3385
AB  - Wet spray pyrolysis of fine, well-dispersed a SiO2 sol was used for the deposition of thin films of silicon dioxide. The sol was obtained by hydrothermal precipitation of silicon acid from a solution at pH = 10. The morphology, roughness, phase composition, chemical homogeneity and the mechanism of the films were investigated by SEM, EDS and IR spectroscopy. The obtained results show a complete covering of the titanium substrate with SiO2 after 3 h of deposition. It was observed that the film thickness increased from 3 to 19 mu m, the roughness of the film decreased from 12 to 3 mu m, while the morphology of the deposit changed considerably. A hydroxyapatite film was prepared on the so-obtained SiO2 thin film by spray pyrolysis deposition and its morphology and phase composition were investigated.
T2  - Journal of Materials Science: Materials in Medicine
T1  - Thin films of SiO2 and hydroxyapatite on titanium deposited by spray pyrolysis
VL  - 19
IS  - 5
SP  - 1871
EP  - 1879
DO  - 10.1007/s10856-007-3264-6
ER  - 

@article{
author = "Jokanović, Vukoman R. and Jokanovic, B. and Izvonar, D. and Dacic, B.",
year = "2008",
abstract = "Wet spray pyrolysis of fine, well-dispersed a SiO2 sol was used for the deposition of thin films of silicon dioxide. The sol was obtained by hydrothermal precipitation of silicon acid from a solution at pH = 10. The morphology, roughness, phase composition, chemical homogeneity and the mechanism of the films were investigated by SEM, EDS and IR spectroscopy. The obtained results show a complete covering of the titanium substrate with SiO2 after 3 h of deposition. It was observed that the film thickness increased from 3 to 19 mu m, the roughness of the film decreased from 12 to 3 mu m, while the morphology of the deposit changed considerably. A hydroxyapatite film was prepared on the so-obtained SiO2 thin film by spray pyrolysis deposition and its morphology and phase composition were investigated.",
journal = "Journal of Materials Science: Materials in Medicine",
title = "Thin films of SiO2 and hydroxyapatite on titanium deposited by spray pyrolysis",
volume = "19",
number = "5",
pages = "1871-1879",
doi = "10.1007/s10856-007-3264-6"
}

Jokanović, V. R., Jokanovic, B., Izvonar, D.,& Dacic, B.. (2008). Thin films of SiO2 and hydroxyapatite on titanium deposited by spray pyrolysis. in Journal of Materials Science: Materials in Medicine, 19(5), 1871-1879.
https://doi.org/10.1007/s10856-007-3264-6

Jokanović VR, Jokanovic B, Izvonar D, Dacic B. Thin films of SiO2 and hydroxyapatite on titanium deposited by spray pyrolysis. in Journal of Materials Science: Materials in Medicine. 2008;19(5):1871-1879.
doi:10.1007/s10856-007-3264-6 .

Jokanović, Vukoman R., Jokanovic, B., Izvonar, D., Dacic, B., "Thin films of SiO2 and hydroxyapatite on titanium deposited by spray pyrolysis" in Journal of Materials Science: Materials in Medicine, 19, no. 5 (2008):1871-1879,
https://doi.org/10.1007/s10856-007-3264-6 . .