Abstract
The hard and soft magnetic nanocomposites (BaFe12O19/NiFe2O4) at the ratio 1:1 were prepared by simple mixing and heat treatment. XRD peak indicates the formation of good crystalline quality of the prepared sample. The FTIR spectra reveals the bands for metal oxygen stretching which ranges from 584 cm−1 to 540 cm−1 forms the tetrahedral shape in nature. However, the hexaferrite site ranges from 580 cm−1 to 440 cm−1 and this bands assign to Ba-O and Fe-O bonds respectively. Furthermore, the UV–visible range, the observed absorption peak indicates that the prepared sample color is congo red, the characteristic absorption peaks at ~739 nm for BaFe12O19, 698 nm for NiFe2O4 and 780 nm for BaFe12O19/NiFe2O4. Overall, the ferrite powder seems agglomerated, but the microstructure shows its respective structure. The particle size of BaFe12O19 (hexagonal) is 150 nm, again the particle size of NiFe2O4 (cubic) is 89 nm apparently. Finally, the structure of composite (BaFe12O19/NiFe2O4) material seems to achieve intermediate and its particle size is 120 nm correspondingly.
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