Abstract
Ni-Zn ferrite with a nominal composition of Ni1–XZnXFe2O4 (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.
Highlights
Among the different mixed ferrites, Ni-Zn ferrites have a good utility as a conducted noise suppressor material in various electromagnetic interfaces compared to other ferrites [1,2]
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
We present the results of systematic doping of non-magnetic Zn content on the magnetic properties of Ni-Zn ferrite synthesized by citrate method
Summary
Among the different mixed ferrites, Ni-Zn ferrites have a good utility as a conducted noise suppressor material in various electromagnetic interfaces compared to other ferrites [1,2] Because of their high resistivity, relatively high permeability and low eddy current loss [3,4]. It is a simple process, which offers a significant saving in time, energy consumption over the traditional methods In this method the metal ions or complexes are immobilized on atomic scale (inside the matrix), which allows to obtain oxides at temperature lower than ones produced in solid state reaction. This method produces homogenous and stoichiometrical oxides. We present the results of systematic doping of non-magnetic Zn content on the magnetic properties of Ni-Zn ferrite synthesized by citrate method
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