Solid-phase synthesis of titanium substituted barium hexaferrite BaFe12–xTixO19

D. A. Vinnik, D. S. Klygach, A. S. Chernukha, V. E. Zhivulin, D. M. Galimov, A. Yu. Starikov, A. V. Rezviy, M. E. Semyonov, M. G. Vakhitov

Abstract


This paper presents the results of obtaining a partially substituted binary hexaferrite of
BaFe12–xTixO19 by a solid-phase synthesis method.

The initial components of the charge – powders Fe2O3, BaCО3 and TiO2 were mixed with a ball mill. The ground powders were compressed into tablets. The pressing was carried out using a metal mold and a hydraulic press.

Sintering was carried out using a tube furnace with silicon carbide heaters.

The synthesis was carried out at a temperature of 1350 ° C for 3 hours. After that, repeated grinding, pressing and sintering of the samples were carried out at a temperature of 1350 °C for 3 hours.

The study of the synthesized samples was carried out by X-ray phase analysis using a Rigaku Ultima IV diffractometer. X-ray patterns were recorded in a range of angles 2θ from 5 to 90 degrees.

The chemical composition of the samples was studied using a scanning electron microscope JEOL JSM7001F equipped with an energy dispersive X-ray fluorescence analyzer INCA X-max 80
(Oxford Instruments).

As a result of the study, a technique was developed for the preparation of barium-substituted hexaferrite BaFe12–xTixO19 with titanium. Using the X-max 80 energy dispersive x-ray fluorescence analyzer, the chemical composition of the samples is determined. Using X-ray phase analysis (Rigaku Ultima IV), the samples obtained are monophasic.


Keywords


barium ferrite; Ti doped barium ferrite; single crystals; magnetic materials



DOI: http://dx.doi.org/10.14529/met170304

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