Synthesis, XRD & SEM Studies of Zinc Substitution in Nickel Ferrites by Citrate Gel Technique

K. Rama Krishna, D. Ravinder, K. Vijaya Kumar, Ch. Abraham Lincon

Department of Chemistry, P. G. College of Science, Osmania University, Hyderabad, India.
Department of Physics, Jawaharlal Nehru Technological University, Hyderabad, College of Engineering, Nachupally (Kondagattu), India.
Department of Physics, Malla Reddy College of Engineering & Technology, Secunderabad, India.
Department of Physics, P. G. College of Science, Osmania University, Hyderabad, India.

DOI: 10.4236/wjcmp.2012.23025                

Abstract

Ni-Zn ferrite with a nominal composition of Ni_1–XZn_XFe₂O₄ (X = 0, 0.2, 0.6, 0.8, 0.9 & 1.0) ferrite powders have been successfully prepared at a very low temperature (180℃) by a novel auto combustion process using citric acid as a coordinating agent. Phase purity of the solid solutions has been confirmed by X-ray diffraction. Morphological, elemental composition characterizations of the prepared samples were performed by high resolution scanning electron microscopy and energy dispersive spectroscopy (EDS). Magnetic properties of all samples are obtained by using VSM (Vibrating Sample Magnetometer) in the range of 10 K oe. The saturation magnetization values of the samples are carried out from the B-H loop. The effect of composition on saturation magnetization and magnetic moment are studied in this paper. The results showed that Saturation magnetization and magnetic moment values increases gradually as Zn²⁺ composition increases, it reaches maximum value 70.28 emu/gm for (X = 0.6) and decreases further with increasing Zn²⁺ composition.

Keywords

Ni-Zn Ferrite; Citrate Precursor Auto Combustion; Saturation Magnetization; Magnetic Moment

Conflicts of Interest

The authors declare no conflicts of interest.

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