Электронный каталог

Статья

Jabarov, S.H.
Evaluation of Structural Characteristics BaFe&sub((12-x))In&sub(x)O&sub(19) Hexaferrite Compounds at High Temperatures / S.H.Jabarov, G.Kaminski, M.N.Mirzayev, [et al.] // Solid State Communications [Electronic resource]. – 2024. – Vol. 386. – P. 115529. – URL: https://doi.org/10.1016/j.ssc.2024.115529. – Bibliogr.: 40.

BaFeO-based hexaferrite compounds were synthesized by partially replacing Fe atoms with In atoms in barium hexaferrite, and their structural characteristics, thermal, and magnetic properties were studied. The crystal structure and lattice parameters of the hexaferrite were investigated using the X-ray diffraction method. Thermal property investigations were conducted at high temperatures. The results obtained by the Differential Scanning Calorimetry (DSC) method were analyzed, and the mechanisms of formation and decomposition of hydroxide groups in these crystals were explained. These effects were also determined by Thermogravimetric Analysis (TGA) studies. The vibrational magnetometry method studied the magnetic properties of BaFe&sub(11.4)In&sub(0.6)O&sub(19) and BaFe&sub(10.8)In&sub(1.2)O&sub(19) compounds. As the concentration of In atoms in the samples increases, the temperature of the ferrimagnetic-paramagnetic phase transition decreases. The observed effect in the temperature range of RT to 800 &sup(o)C is attributed to weight loss due to the decomposition of structural water molecules through an endo-thermic reaction in hexaferrite compounds. The value of the Curie temperature for the BaFe&sub(11.4)In&sub(0.6)O&sub(19) compound was 383 &sup(o) C, and for the BaFe&sub(10.8) In&sub(1.2)O&sub(19) compound, it was 323 &sup(o)C. Increasing In concentration from x = 0.6 to x = 1.2 increases the In*3*+ ionic radius in the structure, and due to the replacement of Fe*3*+ ions with more In*3*+ ions at x = 1.2, the magnetic hyperfine field area decreases.



ОИЯИ = ОИЯИ (JINR)2024
Спец.(статьи,препринты) = С 44 в - Новые химические реакции, соединения и реактивы
Спец.(статьи,препринты) = С 332.8 - Синхротронное излучение. Лазеры на свободных электронах. Получение и использование рентгеновских лучей
Ключевых слов = 40/024