Abstract
Barium ferrite (BaFe12O19) with different particle sizes were successfully synthesized by solid‐state reaction (ceramic method) using locally available low cost α‐Fe2O3 mixed with BaO2. The prepared samples were sintered in the temperature range of 950° to 1200°C for 1.5 to 6 h. The prepared products of barium ferrite were characterized by X‐ray diffraction, a scanning electron microscope, and a vibrating sample magnetometer. The effect of mole ratio, sintering temperature, and time was studied. A further addition of 10% BaO2 to the mole ratio (BaO2:5.7Fe2O3), and removing the particle size <63 μm, exhibits a pure phase BaFe12O19. The saturation magnetization reached the optimum value of Ms=∼67 emu/g with coercivity of 2596 Oe, under sintering temperature up to 1100°C for 4.5 h.
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