Effect of Co and Ni additions as doping materials on the micro-structures and the magnetic properties of barium hexa-ferrites
Masno Ginting, Perdamean Sebayang, Martha Rianna, Marhaposan Situmorang, Heryani Fujiati, Anggito P. Tetuko, Eko Arief Setiadi, Candra Kurniawan, Achmad Maulana Soehada Sebayang
Abstract
In this paper, the synthesis of BaFe12-2xCoxNixO19 (x = 0–0.2) materials at a calcination temperature of 950 °C using a co-precipitation method have been reported. The precursor concentrations of the mixture were varied to identify the optimum sample. The results suggested that the structure of barium hexa-ferrite crystal did not change due to the effect of Co and Ni additions. The optimum condition is obtained at the concentration of 0.2% mol of Co and Ni ions resulting a single phase of barium hexa-ferrite. The XRD analysis confirmed that the addition of Co and Ni affects the growth of barium hexa-ferrite crystals in plane (114). The optimum condition of the magnetic properties are listed in the following: Ms = 34.83 emu/g, Mr = 18.03 emu/g, Hc = 2099 Oe.