Some composites of barium ferrites activated with the neodymium ions (Nd³⁺) of composition (20)BaO:(80-x)γFe₂O₃:(x)Nd₂O₃ (x = 0, 1 and 2 mol%) were synthesized using the modified mechanical alloying for the first time. The influence of varying Nd³⁺ concentrations on the morphologies, microstructures, and magnetic characteristics of these composites were evaluated. In addition, the microwave (MW) reflection loss, complex relative permittivity, and permeability of the studied composites in the frequency range of 8.2–12.4 GHz were analysed using the Nicholson-Ross-Weir (NRW) method. The inclusion of Nd³⁺ in the proposed composites was discerned to influence the permittivity, permeability and reflection loss significantly in the MW X-band region.

https://doi.org/10.1016/j.coco.2020.02.008