Impact of high-energy ball milling on dielectric properties of trivalent aluminium and chromium-doped magnesium ferrites

This study delves into the synthesis and characterization of trivalent aluminium and chromium-doped magnesium ferrites using high-energy ball milling. The research focuses on the impact of milling duration and cation substitution on the structural, microstructural, and dielectric properties of these nanospinel ferrites. Key findings reveal that prolonged milling significantly influences grain size, grain boundaries, and phase homogeneity, which in turn affect the polarization mechanism and charge transport. The study also explores the dielectric properties, including the real and imaginary parts of the dielectric constant, as well as the dielectric loss tangent. The results indicate that the dielectric properties can be finely tuned by adjusting the milling duration and cation distribution. The research concludes that the synthesized materials show promise for applications in energy storage devices, with potential improvements in performance through optimized milling processes and cation substitution. The detailed analysis of the dielectric behaviour and microstructural changes provides valuable insights for professionals in the field of materials science and nanotechnology.