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Microwave Synthesis and Characterizations of Ni0.5Zn0.5Fe2O4 Ferrite Powder

Microwave heating method was used to synthesize (Ni0.5Zn0.5)Fe2O4 ferrite from a stoichiometric mixture of corresponding metal oxides powders. The structural, chemical and magnetic properties of Ni-Zn ferrite was determined by X-ray powder diffraction (XRD) and vibrating sample magnetometry (VSM). Results showed that the material was spinel structure with a high purity with an estimated crystallite size of ∼30nm by X-ray line profile fitting. The sample systhetized by microwave energy at 860°C for 30min has magnetic properties of intrinsic coercivity 55.94G and saturation magnetization 19.43 emu/g. Compared with conventional burning method, microwave systhesis of NiZn ferrite is more efficient and reducing a lots of soaking time.