Abstract
Synthesis of Barium M-Hexaferrite samples based on natural iron sand at Ketapang beach, Pringgabaya District, East Lombok with Mn-Ni doping (BaFe12-xMnxNixO19) has been successfully carried out using the coprecipitation method. The synthesis aims to determine the characteristics of the electrical properties of the Reflection Loss sample of BaFe12-xMnxNixO19 doped with Mn-Ni metal. The basic materials used in this study were natural iron sand and Barium Carbonate (BaCO3) powder, while the doping materials used were Nickel (II) Chloride Hexahydrate (NiCl2.6H2O) and Manganese(II) chloride (MnCl2) powder with a variety of mole fraction (X = 0, 2; 0 ‚4; 0‚6 and 0.8). The solvent uses distilled water, 37% hydrochloric acid (HCl), and 25% NH4OH solution. The samples were then calcined at 25 °C, 400 °C, and 600 °C. The obtained samples show that the higher the Mn-Ni doping ion content and the calcination temperature, the smaller the resulting Reflection Loss value and the greater the absorption rate of microwaves.
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