The structure of barium M-hexaferrite (BaFe12-2xCoxNixO19) powders using co-precipitation methods.

Barium M-hexaferrite were synthesized with Co-Ni doping ions (BaFe_12-2xCoNi_xO₁₉) using the co-precipitation method, based on the natural iron sand of the Loang Balok beach, Sekarbela District, Mataram, Indonesia. The synthesis was carried out with variations in the concentration of doping ions (x = 0.0, 0.6, and 1.0). The characterization of the sample was completed using XRD, SEM-EDX, TEM. The XRD results showed that the sample had a hexagonal structure because it had a c / value of 2.3 to 2.6. In contrast, SEM-EDX showed that the sample size of BaFe₁₂CoNiO₁₉ had reached the range of nanoparticles from 41 nm to 151 nm which was evenly distributed, with a composition of Ba = 12.22%; Fe = 49.1%; Co = 8.78%; Ni = 4.76%; and O = 21.37%, and slight impurities Cl = 3.77%. [ABSTRACT FROM AUTHOR]