Structural, Magnetic and Electrical Properties of Cu-Mg Ferrites

Authors

  • Shahida Akhter University of Chittagong
  • D.P. Paul University of Chittagong
  • D.K. Saha Atomic Energy Centre, Dhaka
  • S.M. Hoque Atomic Energy Centre, Dhaka
  • M.A. Hakim Bangladesh University of Engineering and Technology (BUET),

DOI:

https://doi.org/10.3329/jsr.v6i2.17351

Keywords:

Ferrites, XRD, Micrographs, Complex permeability, DC resistivity.

Abstract

Cu1-xMgxFe2O4 ferrites with (x = 0.2, 0.4, 0.6, 0.8 and 1.0) has been synthesized by double sintering ceramic technique at 11500C for 2hr and investigated for their structure, microstructure, complex permeability behaviour, DC and AC resistivity, dielectric constant measurements. X-ray analysis indicated the formation of single-phase cubic spinel structure for all samples and the lattice parameter was found to decrease with increasing Mg content. Grain size was found to decrease from 34.36 to 4.16 mm with the increase of Mg contents. The real part of initial permeability (??) remained constant up to certain lower range of frequency after it decreased slightly to lower value of permeability at which imaginary part of permeability (?²) showed a maximum value. The decrease of ?? is observed with the increase of Mg content which is attributed to a decrease of grain size. DC electrical resistivity and dielectric constant decreased with increasing Mg content and AC resistivity decreased with increasing frequency, exhibiting normal ferrimagnetic behaviour. The observed variation of electrical and dielectric properties has been explained on the basis of the electronic hopping frequency between Fe2+ and Fe3+ ions in present samples.

 

Keywords: Ferrites; XRD; Micrographs; Complex permeability; DC resistivity.

 

© 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.

 

doi: http://dx.doi.org/10.3329/jsr.v6i2.17351

J. Sci. Res. 6 (2), 205-215 (2014)

 

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Author Biographies

Shahida Akhter, University of Chittagong

Assistant professor, Physics

D.P. Paul, University of Chittagong

Professor, Physics

D.K. Saha, Atomic Energy Centre, Dhaka

Chief Scientific Officer,

Materials Science Division,

S.M. Hoque, Atomic Energy Centre, Dhaka

Principal Scientific Officer
Materials Science Division

M.A. Hakim, Bangladesh University of Engineering and Technology (BUET),

Dept. of Glass and Ceramic Engineering,

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Published

2014-04-23

How to Cite

Akhter, S., Paul, D., Saha, D., Hoque, S., & Hakim, M. (2014). Structural, Magnetic and Electrical Properties of Cu-Mg Ferrites. Journal of Scientific Research, 6(2), 205–215. https://doi.org/10.3329/jsr.v6i2.17351

Issue

Vol. 6 No. 2 (2014)

Section

Section A: Physical and Mathematical Sciences

License

© Journal of Scientific Research

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