Characteristics of Barium M-Hexaferrite with Doping Mn and Ni in X-Band Frequency for Microwave Absorption

Abstract

Synthesis of Barium M-Hexaferrite samples based on natural iron sand at Ketapang beach, Pringgabaya District, East Lombok with Mn-Ni doping (BaFe 12-x Mn x Ni x O 19 ) 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 BaFe 12-x Mn x Ni x O 19 doped with Mn-Ni metal. The basic materials used in this study were natural iron sand and Barium Carbonate (BaCO 3 ) powder, while the doping materials used were Nickel (II) Chloride Hexahydrate (NiCl 2 .6H 2 O) and Manganese(II) chloride (MnCl 2 ) 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% NH 4 OH 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.