Mechanochemical synthesis of hexagonal ferrites BaFe12O19

Nevmyvaka, Anna; Itin, Volya I.; Velikanov, Dmitry A.; Zhuravlev, Victor A.

Mechanochemical synthesis of hexagonal ferrites BaFe12O19

Nevmyvaka, Anna, Itin, Volya I., Velikanov, Dmitry A., Zhuravlev, Victor A.

Дата публикации: 2018

Дата публикации в реестре: 2021-01-19T20:03:34Z

Аннотация:

The phase composition, structural parameters, and basic magnetic characteristics of BaFe12O19 hexaferrites prepared by the mechanochemical synthesis with subsequent annealing at a temperature of 1000°С and 1100°С for 1 h are investigated. The influence of the annealing temperature on the properties of synthesized materials is analyzed. Values of the saturation magnetization and the anisotropy field are determined. It is established that annealing temperature in the interval 1000 - 1100 °C does not significantly affect on the phase composition and the size of nanoparticles. The value of the anisotropy field increases substantially with increasing temperature.

Ключевые слова:
ферромагнитный резонанс, кривая намагничивания, магнитокристаллическая анизотропия, механохимический синтез, гексаферриты, наноструктура

Тип: статьи в журналах

Источник: Key engineering materials. 2018. Vol. 781. P. 119-124