Research Article Open Access

Synthesis and Charaterization of Magnesium Zinc Ferrites as Electromagnetic Source

Noorhana Yahya1, Ami Salwani Mohamad Nor Aripin1, Azizuddin A. Aziz1, Hanita Daud1, Hasnah Mohd Zaid1, Lim Kean Pah1 and Norehan Maarof1
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American Journal of Engineering and Applied Sciences
Volume 1 No. 1, 2008, 53-56

DOI: https://doi.org/10.3844/ajeassp.2008.53.56

Submitted On: 20 August 2008 Published On: 31 March 2008

How to Cite: Yahya, N., Aripin, A. S. M. N., Aziz, A. A., Daud, H., Zaid, H. M., Pah, L. K. & Maarof, N. (2008). Synthesis and Charaterization of Magnesium Zinc Ferrites as Electromagnetic Source. American Journal of Engineering and Applied Sciences, 1(1), 53-56. https://doi.org/10.3844/ajeassp.2008.53.56

Abstract

Fabrication of Mg1-XZnXFe2O4 (where x = 0.2, 0.3, 0.4 and 0.5) samples using a conventional technique is reported. Oxides of magnesium, zinc and iron with purity of about 99.99% were mixed with distilled water in a milling machine for 12 hours. They were then filtered and presintered at 1250°C and sintered at 1350°C for 10 h in air. The phase and the crystal structure of the asprepared samples were identified using X-Ray Diffraction analysis (XRD). Hysteresis graph was evaluated using Vibrating Sample Magnetometer (VSM) to get the saturation magnetization (emu g-1) and coercivity (G) value. Atomic Force Microscope (AFM) was used to observe the surface morphology. The X-ray diffraction analysis showed major peak at plane (3 1 1) of the cubic structure for all the ferrites. The largest value of density achieved was 4.69 gcm-3 which was exhibited by sample with 0.5 mole fraction of zinc content. Highest saturation magnetization value (3.652emu g-1) was obtained for the 0.3 mole fraction of zinc content. A strong correlation between the saturation magnetization and zinc content was observed. We speculate that it is due to the Heisenberg superexchange interaction of magnetic Fe3+ and non-magnetic Zn2+ occupying the tetrahedral sites. The sample was used to induce electromagnetic (EM) waves in high operating frequency (5 MHz).

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Keywords

  • Tetrahedron
  • x-ray diffraction
  • hysteresis
  • electromagnetic field and super-exchange interaction