Abstract
Nanostructured powder of Ni – Zn ferrite was directly produced by high-energy ball milling of stoichiometric mixture of ZnO , NiO , and Fe 2 O 3 powders. X-ray powder diffractometry, scanning electron microscopy, annealing, treatment, and vibrating sample magnetometer were used to investigate the structural, chemical, and magnetic aspects of Ni 0.5 Zn 0.5 Fe 2 O 4 compound. The crystallite size of final product after 60 h of ball milling time was estimated to be 17 nm. Heat treatment of ball-milled Ni – Zn ferrite was performed to study the thermal behavior of ferrite. The effect of copper doping on structure and magnetic properties of Ni – Zn ferrite was also studied. The results showed that the Zn replacement with Cu led to a decrease of magnetization.
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