Influence of Al Content and Additive Materials on the Magnetic and Electrical Properties of Al-Substituted Ni Ferrites

This work deals with the preparation of Aluminium-substituted Nickel ferrite by powder metallurgy method in different Al contents (X= 0.0, 0.1, 0.2, 0.3, 0.4 and 0.5 in NiAlxFe2-xO4). Magnetic properties of samples are measured by an LCR meter, morphology and structure of samples are characterized by SEM and XRD, respectively. The effect of Al content and grain size on effective magnetic permeability (?eff), equivalent series resistance (RESR), curie temperature (Tc) and lattice parameter have been investigated. The results show that the above parameters decrease as Al content increases.