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M. PLAZINIC1, M. SPASOJEVIC2,* , M. LUKOVIC1, A. MARICIC1, M. D. SPASOJEVIC1
- Joint Laboratory for Advanced Materials of SASA, Section for Amorphous Systems, Faculty of Technical Sciences, Čačak, University of Kragujevac, Čačak, Serbia
- Innovation Center of the Faculty of Chemistry, University of Belgrade, Belgrade, Serbia
The effect of grinding time of a powder mixture of 70wt% Fe and 30wt% BaTiO3 on properties of as-obtained and sintered powders is studied. The composition, phase structure, morphology, magnetic and electrical properties depend on the grinding time. The powder, ground for 150 min shows the highest magnetization. Compact samples, in which the BeFe12O19 crystals of optimal sizes form completely, are obtained by sintering the pressed powder, ground for 240 min, at 1200°C. These samples show the highest magnetization and dielectric permittivity. Annealing of sintered samples at Curie temperatures results in the structural relaxation. Samples cooled in magnetic field show 1.96 higher magnetization than as sintered..
Milling, Sintering, Microstructure, Magnetic properties, Electrical properties, Magnetization, Dielectric permittivity.
Submitted at: Aug. 21, 2020
Accepted at: Aug. 16, 2021
M. PLAZINIC, M. SPASOJEVIC, M. LUKOVIC, A. MARICIC, M. D. SPASOJEVIC, Effect of the mechano-chemical activation, pressing and sintering the powders of 70% Fe, 30% BaTiO3 on morphology, microstructure, magnetic and electrical properties, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 7-8, pp. 383-396 (2021)
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