Synthesis and Characterization of Structural, and Electrical Properties of Mg(0.25x)Cu(0.25x)Zn(1 – 5x)Fe2O4 Ferrites by Sol-Gel Method

Authors

  • M. Shahjahan Department of Physics, University of Chittagong, ENS Paris Saclay, Complutense University of Madrid
  • S. M. Talukder Department of Physics, University of Chittagong
  • M. S. Hossain Industrial Physics Division, BCSIR Laboratories Dhaka, Bangladesh Council of Scientific & Industrial Research (BCSIR)
  • M. H. A. Begum Industrial Physics Division, BCSIR Laboratories Dhaka, Bangladesh Council of Scientific & Industrial Research (BCSIR)
  • R. L. Warnock ENS Paris Saclay, Complutense University of Madrid
  • M. A. Haque Department of Physics, University of Chittagong
  • M. Hossain Daffodil International University
  • N. A. Ahmed Industrial Physics Division, BCSIR Laboratories Dhaka, Bangladesh Council of Scientific & Industrial Research (BCSIR)

DOI:

https://doi.org/10.15407/ujpe64.9.861

Keywords:

MgCuZn ferrite, sol-gel method, nanocrystalline ferrites, magnetic properties, multilayer chip inductors

Abstract

The effects of magnesium, copper, and zinc substitutions on spinel ferrites have been investigated by the sol-gel technique. Ferrite compositions of Mg0,25xCu0,25xZn(1−0,5x)Fe2O4 (where x = 0.6, 0.7, 0.8 & 0.9) were prepared at a sintering temperature of 1100 ∘C with a presintering at 500 ∘C. X-ray diffraction (XRD), scanning electron microscopy (SEM), and high-precision impedance analysis are used to characterize structural and dielectric properties, as well as the surface topography and morphology of the samples. A single phase, cubic spinel structure, with decreased lattice constant was observed. SEM micrographs revealed a homogeneous microstructure with uniform size distributions. Both the dielectric constant and dielectric loss tangent decrease, as the incident frequency increases up to a certain saturation point. The direct current (dc) resistivity profile shows that the resistivity increases with the temperature up to the Curie point, then it goes to a constant value. The quality factor (Q-factor) increases with the incident frequency. Hence, the high Q-factor will make ferrites highly useful in applications, especially in multilayer chip inductors.

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Published

2019-10-11

How to Cite

Shahjahan, M., Talukder, S. M., Hossain, M. S., Begum, M. H. A., Warnock, R. L., Haque, M. A., Hossain, M., & Ahmed, N. A. (2019). Synthesis and Characterization of Structural, and Electrical Properties of Mg(0.25x)Cu(0.25x)Zn(1 – 5x)Fe2O4 Ferrites by Sol-Gel Method. Ukrainian Journal of Physics, 64(9), 861. https://doi.org/10.15407/ujpe64.9.861

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Structure of materials