Multiferroic composites with the general formula x BaTiO3-(1-x) NiFe2O4 (x=0.5, 0.7, 0.8) were prepared by mixing chemically obtained nickel ferrite and barium titanate powders. Optimum processing parameters for a reduction of chemical reactions at the interfaces between ferroelectric-ferrite phases were found. The presence of the nickel ferrite and barium titanate single phases was detected by X-ray measurements. Good quality of the homogenized ceramics containing both phases was confirmed by use of scanning electron microscopy. Dielectric measurements showed the superposition of the multiple conductivity mechanisms responsible for the dielectric dispersion at frequencies up to 1 MHz. Calculated activation energies for DC conductivity showed the contribution of oxygen vacancies and Maxwell-Wagner related phenomena. Magnetic measurements of the composite materials were performed showing the coercivity increase and saturation of the magnetization moment decrease with the increase of bar...ium titanate content.
Keywords:
Powders: chemical preparation / Magnetic properties / Dielectric properties / Composites
Source:
Ceramics International, 2014, 40, 4, 6165-6170
Publisher:
Elsevier Sci Ltd, Oxford
Funding / projects:
European Social FundEuropean Social Fund (ESF) [VP1-3.1-SMM-07-K-03-011]
DI 45021]
COSTEuropean Cooperation in Science and Technology (COST) [MP0904]
TY - JOUR
AU - Grigalaitis, R.
AU - Vijatović-Petrović, Mirjana
AU - Bobić, Jelena
AU - Džunuzović, Adis
AU - Sobiestianskas, R
AU - Brilingas, A
AU - Stojanović, Biljana D
AU - Banys, J
PY - 2014
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/790
AB - Multiferroic composites with the general formula x BaTiO3-(1-x) NiFe2O4 (x=0.5, 0.7, 0.8) were prepared by mixing chemically obtained nickel ferrite and barium titanate powders. Optimum processing parameters for a reduction of chemical reactions at the interfaces between ferroelectric-ferrite phases were found. The presence of the nickel ferrite and barium titanate single phases was detected by X-ray measurements. Good quality of the homogenized ceramics containing both phases was confirmed by use of scanning electron microscopy. Dielectric measurements showed the superposition of the multiple conductivity mechanisms responsible for the dielectric dispersion at frequencies up to 1 MHz. Calculated activation energies for DC conductivity showed the contribution of oxygen vacancies and Maxwell-Wagner related phenomena. Magnetic measurements of the composite materials were performed showing the coercivity increase and saturation of the magnetization moment decrease with the increase of barium titanate content.
PB - Elsevier Sci Ltd, Oxford
T2 - Ceramics International
T1 - Dielectric and magnetic properties of BaTiO3-NiFe2O4 multiferroic composites
EP - 6170
IS - 4
SP - 6165
VL - 40
DO - 10.1016/j.ceramint.2013.11.069
ER -
@article{
author = "Grigalaitis, R. and Vijatović-Petrović, Mirjana and Bobić, Jelena and Džunuzović, Adis and Sobiestianskas, R and Brilingas, A and Stojanović, Biljana D and Banys, J",
year = "2014",
abstract = "Multiferroic composites with the general formula x BaTiO3-(1-x) NiFe2O4 (x=0.5, 0.7, 0.8) were prepared by mixing chemically obtained nickel ferrite and barium titanate powders. Optimum processing parameters for a reduction of chemical reactions at the interfaces between ferroelectric-ferrite phases were found. The presence of the nickel ferrite and barium titanate single phases was detected by X-ray measurements. Good quality of the homogenized ceramics containing both phases was confirmed by use of scanning electron microscopy. Dielectric measurements showed the superposition of the multiple conductivity mechanisms responsible for the dielectric dispersion at frequencies up to 1 MHz. Calculated activation energies for DC conductivity showed the contribution of oxygen vacancies and Maxwell-Wagner related phenomena. Magnetic measurements of the composite materials were performed showing the coercivity increase and saturation of the magnetization moment decrease with the increase of barium titanate content.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Dielectric and magnetic properties of BaTiO3-NiFe2O4 multiferroic composites",
pages = "6170-6165",
number = "4",
volume = "40",
doi = "10.1016/j.ceramint.2013.11.069"
}
Grigalaitis, R., Vijatović-Petrović, M., Bobić, J., Džunuzović, A., Sobiestianskas, R., Brilingas, A., Stojanović, B. D.,& Banys, J.. (2014). Dielectric and magnetic properties of BaTiO3-NiFe2O4 multiferroic composites. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(4), 6165-6170.
https://doi.org/10.1016/j.ceramint.2013.11.069
Grigalaitis R, Vijatović-Petrović M, Bobić J, Džunuzović A, Sobiestianskas R, Brilingas A, Stojanović BD, Banys J. Dielectric and magnetic properties of BaTiO3-NiFe2O4 multiferroic composites. in Ceramics International. 2014;40(4):6165-6170.
doi:10.1016/j.ceramint.2013.11.069 .
Grigalaitis, R., Vijatović-Petrović, Mirjana, Bobić, Jelena, Džunuzović, Adis, Sobiestianskas, R, Brilingas, A, Stojanović, Biljana D, Banys, J, "Dielectric and magnetic properties of BaTiO3-NiFe2O4 multiferroic composites" in Ceramics International, 40, no. 4 (2014):6165-6170,
https://doi.org/10.1016/j.ceramint.2013.11.069 . .
