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Thermal effects on electromagnetic properties of Cu1-xMgxFe2O4 ferrites

  • Shahida Akhter , Deba Prasad Paul , Sheikh Manjura Hoque and Md. Abdul Hakim
Published/Copyright: September 4, 2017
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 108 Issue 9

Abstract

In the present work, Cu1-xMgxFe2O4 (x = 0.2, 0.4, 0.6, 0.8 and 1.0) ferrites have been synthesized via a conventional solid-state reaction method. Thermal analysis and the estimation of total weight loss of the samples were performed by differential thermal analysis and thermogravimetric analysis measurements. The thermal variation of initial permeability exhibits unusual dependence with the manifestation of a broad hump followed by a Hopkinson peak attributed to the structural transformation and minimization of magneto-crystalline anisotropy energy, respectively. A decrease in resistivity is observed with increase in temperature and corresponding activation energies for conduction have been calculated. Possible explanations for the observed physical, thermal, magnetic and transport properties with temperature of the samples are discussed in the present paper.

Keywords: Ferrites; Sintering; Density; Permeability; Resistivity
*Correspondence address, Dr. Shahida Akhter, Associate Professor, Department of Physics, University of Chittagong, Chittagong-4331, Bangladesh, Tel.: +8801716143980, E-mail:

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Received: 2016-12-31
Accepted: 2017-05-02
Published Online: 2017-09-04
Published in Print: 2017-09-15

© 2017, Carl Hanser Verlag, München

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https://doi.org/10.3139/146.111524
Keywords for this article
Ferrites; Sintering; Density; Permeability; Resistivity

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. Note from the Editor-in-Chief
  5. Original Contributions
  6. Application of the grey-based fuzzy logic approach for materials selection
  7. Study of phase transformation and crystal structure of Co nanowires
  8. Continuous cooling transformation behavior and the kinetics of bainite formation in a bainitic–martensitic steel
  9. The substructures and crystallographic features of martensite in high-carbon steel after cryogenic treatment
  10. Mechanical characterization of YBCO thin films using nanoindentation and finite element method
  11. Enhancing mechanical properties of wires by a novel continuous severe plastic deformation method
  12. Evolution of microstructure and mechanical properties of Mg-3Al-1Zn alloy through the corner of a deep cup-shaped forged part
  13. Effects of oxidation time on corrosion resistance of plasma electrolytic oxidation coatings on magnesium alloy
  14. Experimental investigation of phase equilibria in the Ni–Nb–V ternary system
  15. Short Communications
  16. Thermal effects on electromagnetic properties of Cu1-xMgxFe2O4 ferrites
  17. DGM News
  18. DGM News
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