TY  - JOUR
AU  - Nikolić, Aleksandar S.
AU  - Puzovic, J. M.
AU  - Pavlović, Miodrag B.
AU  - Osmokrovic, P.
AU  - Lazarevic, Z.
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/881
AB  - Ultrafine nickel-ferrite materials were prepared from complex compounds with acetylacetonato-ligands, according to a previously developed method. The influence of different atmospheres (air, oxygen and nitrogen) applied during thermal decomposition of precursors was studied. Thermal decomposition was carried out with the heating rate of 10 degrees C/min and the cooling rate of 20 degrees C/min. Characterization of the final products was performed by X-ray and TEM analysis. Reviewing the products, we concluded that the optimal temperatures for the preparation of pure ultrafine ferrite materials were 400 degrees C for air atmosphere, and 500 degrees C for O-2 and N-2 atmospheres. All samples prepared at lower temperatures show the presence of the nickel-phase, while all samples prepared at higher temperatures show the presence of the hematite-phase.
PB  - Natl Inst Optoelectronics, Bucharest-Magurele
T2  - Journal of Optoelectronics and Advanced Materials
T1  - Preparation of nickel-ferrites from complex compounds with acetylacetonato-ligands in different atmosphere conditions
VL  - 9
IS  - 9
SP  - 2731
EP  - 2733
UR  - https://hdl.handle.net/21.15107/rcub_cherry_881
ER  - 

@article{
author = "Nikolić, Aleksandar S. and Puzovic, J. M. and Pavlović, Miodrag B. and Osmokrovic, P. and Lazarevic, Z.",
year = "2007",
abstract = "Ultrafine nickel-ferrite materials were prepared from complex compounds with acetylacetonato-ligands, according to a previously developed method. The influence of different atmospheres (air, oxygen and nitrogen) applied during thermal decomposition of precursors was studied. Thermal decomposition was carried out with the heating rate of 10 degrees C/min and the cooling rate of 20 degrees C/min. Characterization of the final products was performed by X-ray and TEM analysis. Reviewing the products, we concluded that the optimal temperatures for the preparation of pure ultrafine ferrite materials were 400 degrees C for air atmosphere, and 500 degrees C for O-2 and N-2 atmospheres. All samples prepared at lower temperatures show the presence of the nickel-phase, while all samples prepared at higher temperatures show the presence of the hematite-phase.",
publisher = "Natl Inst Optoelectronics, Bucharest-Magurele",
journal = "Journal of Optoelectronics and Advanced Materials",
title = "Preparation of nickel-ferrites from complex compounds with acetylacetonato-ligands in different atmosphere conditions",
volume = "9",
number = "9",
pages = "2731-2733",
url = "https://hdl.handle.net/21.15107/rcub_cherry_881"
}

Nikolić, A. S., Puzovic, J. M., Pavlović, M. B., Osmokrovic, P.,& Lazarevic, Z.. (2007). Preparation of nickel-ferrites from complex compounds with acetylacetonato-ligands in different atmosphere conditions. in Journal of Optoelectronics and Advanced Materials
Natl Inst Optoelectronics, Bucharest-Magurele., 9(9), 2731-2733.
https://hdl.handle.net/21.15107/rcub_cherry_881

Nikolić AS, Puzovic JM, Pavlović MB, Osmokrovic P, Lazarevic Z. Preparation of nickel-ferrites from complex compounds with acetylacetonato-ligands in different atmosphere conditions. in Journal of Optoelectronics and Advanced Materials. 2007;9(9):2731-2733.
https://hdl.handle.net/21.15107/rcub_cherry_881 .

Nikolić, Aleksandar S., Puzovic, J. M., Pavlović, Miodrag B., Osmokrovic, P., Lazarevic, Z., "Preparation of nickel-ferrites from complex compounds with acetylacetonato-ligands in different atmosphere conditions" in Journal of Optoelectronics and Advanced Materials, 9, no. 9 (2007):2731-2733,
https://hdl.handle.net/21.15107/rcub_cherry_881 .

TY  - JOUR
AU  - Nikolić, Aleksandar S.
AU  - Likar-Smiljanić, V
AU  - Jovalekic, C
AU  - Cajkovski, T
AU  - Biljic, R
AU  - Lazarevic, Z
AU  - Pavlović, Miodrag B.
PY  - 2004
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/641
AB  - Nickel and nickel-zinc ferrites are ones of the most abundant members of the soft magnetic materials. In the last few years, the interest in new methods of their preparation increases, because it is well known that the physical and chemical properties of these materials strongly depend on the preparing conditions. Powder samples of soft ferrites of NiFe2O4 and NixZn1-xFC2O4 were synthesized by a classical sintering procedure, planetary mill synthesis, and by a chemical procedure from complex compounds with acetylacetonato-ligands. Average particle sizes were 1 mum, 40 nm and 20x20x4 nm (slabs), respectively. All of the obtained materials were measured ill the frequency range of 7 - 12 GHz for the real and the imaginary part of permittivity and permeability, and the absorption coefficients were calculated. A concurrent analysis of the obtained values showed the influence of the method of synthesis, as well as the particle size on the absorption coefficients in the applied frequency range.
PB  - Trans Tech Publications Ltd, Zurich-Uetikon
T2  - Materials Science Forum
T1  - Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method
SP  - 405
EP  - 410
DO  - 10.4028/www.scientific.net/MSF.453-454.405
ER  - 

@article{
author = "Nikolić, Aleksandar S. and Likar-Smiljanić, V and Jovalekic, C and Cajkovski, T and Biljic, R and Lazarevic, Z and Pavlović, Miodrag B.",
year = "2004",
abstract = "Nickel and nickel-zinc ferrites are ones of the most abundant members of the soft magnetic materials. In the last few years, the interest in new methods of their preparation increases, because it is well known that the physical and chemical properties of these materials strongly depend on the preparing conditions. Powder samples of soft ferrites of NiFe2O4 and NixZn1-xFC2O4 were synthesized by a classical sintering procedure, planetary mill synthesis, and by a chemical procedure from complex compounds with acetylacetonato-ligands. Average particle sizes were 1 mum, 40 nm and 20x20x4 nm (slabs), respectively. All of the obtained materials were measured ill the frequency range of 7 - 12 GHz for the real and the imaginary part of permittivity and permeability, and the absorption coefficients were calculated. A concurrent analysis of the obtained values showed the influence of the method of synthesis, as well as the particle size on the absorption coefficients in the applied frequency range.",
publisher = "Trans Tech Publications Ltd, Zurich-Uetikon",
journal = "Materials Science Forum",
title = "Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method",
pages = "405-410",
doi = "10.4028/www.scientific.net/MSF.453-454.405"
}

Nikolić, A. S., Likar-Smiljanić, V., Jovalekic, C., Cajkovski, T., Biljic, R., Lazarevic, Z.,& Pavlović, M. B.. (2004). Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method. in Materials Science Forum
Trans Tech Publications Ltd, Zurich-Uetikon., 405-410.
https://doi.org/10.4028/www.scientific.net/MSF.453-454.405

Nikolić AS, Likar-Smiljanić V, Jovalekic C, Cajkovski T, Biljic R, Lazarevic Z, Pavlović MB. Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method. in Materials Science Forum. 2004;:405-410.
doi:10.4028/www.scientific.net/MSF.453-454.405 .

Nikolić, Aleksandar S., Likar-Smiljanić, V, Jovalekic, C, Cajkovski, T, Biljic, R, Lazarevic, Z, Pavlović, Miodrag B., "Nicolson-Ross analysis of absorption coefficients of nickel and nickel-zinc ferrite powders prepared using a novel method" in Materials Science Forum (2004):405-410,
https://doi.org/10.4028/www.scientific.net/MSF.453-454.405 . .