International Journal of Materials Science and Applications

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Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor

Received: 22 September 2013    Accepted:     Published: 30 October 2013
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Abstract

AC conductivity, dielectric constant, loss and electric modulus of Sodium nitrate system have been studied in the frequency range from 1Hz to 10MHz and in the temperature range from 303 K to 563 K by employing impedance spectroscopy. The frequency dependent ac conductivity follows Jonscher’s universal power law. Dimensionless frequency exponent (n), dispersion parameter (A) are determined. The change over frequency independent conductivity to frequency dependent conductivity at all temperatures shows the relaxation mechanism. The variation of real part of dielectric constant with frequency shows strong dispersion at low frequencies and saturation at high frequencies. The presence of peaks in the frequency plots of dielectric loss, imaginary parts of impedance and modulus are attributed to the relaxation processes. It is also confirmed by the temperature dependence study of real part of dielectric constant. The activation energy from relaxation processes and conductivity has been evaluated.

DOI 10.11648/j.ijmsa.20130206.12
Published in International Journal of Materials Science and Applications (Volume 2, Issue 6, November 2013)
Page(s) 173-178
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Solid Electrolyte, Fast Ion Conductor, Relaxation, Ac Conductivity

References
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Author Information
  • Department of Physics, Arjun College of Technology and Sciences, JNTUH, India

  • Dept. of Physics, University College of Science, Osmania University, Hyderabad, India

  • Thermodynamics Lab, UGC DAE Consortium, Indore, India

  • Thermodynamics Lab, UGC DAE Consortium, Indore, India

  • Dept. of Physics, University College of Engineering, Osmania University, Hyd, India

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    T. Vijay kumar, A. Sadananda Chary, Suresh Bhardwaj, A. M. Awasthi, S. Narender Reddy. (2013). Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor. International Journal of Materials Science and Applications, 2(6), 173-178. https://doi.org/10.11648/j.ijmsa.20130206.12

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    T. Vijay kumar; A. Sadananda Chary; Suresh Bhardwaj; A. M. Awasthi; S. Narender Reddy. Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor. Int. J. Mater. Sci. Appl. 2013, 2(6), 173-178. doi: 10.11648/j.ijmsa.20130206.12

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    AMA Style

    T. Vijay kumar, A. Sadananda Chary, Suresh Bhardwaj, A. M. Awasthi, S. Narender Reddy. Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor. Int J Mater Sci Appl. 2013;2(6):173-178. doi: 10.11648/j.ijmsa.20130206.12

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  • @article{10.11648/j.ijmsa.20130206.12,
      author = {T. Vijay kumar and A. Sadananda Chary and Suresh Bhardwaj and A. M. Awasthi and S. Narender Reddy},
      title = {Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor},
      journal = {International Journal of Materials Science and Applications},
      volume = {2},
      number = {6},
      pages = {173-178},
      doi = {10.11648/j.ijmsa.20130206.12},
      url = {https://doi.org/10.11648/j.ijmsa.20130206.12},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.ijmsa.20130206.12},
      abstract = {AC conductivity, dielectric constant, loss and electric modulus of Sodium nitrate system have been studied in the frequency range from 1Hz to 10MHz and in the temperature range from 303 K to 563 K by employing impedance spectroscopy. The frequency dependent ac conductivity follows Jonscher’s universal power law. Dimensionless frequency exponent (n), dispersion parameter (A) are determined. The change over frequency independent conductivity to frequency dependent conductivity at all temperatures shows the relaxation mechanism. The variation of real part of dielectric constant with frequency shows strong dispersion at low frequencies and saturation at high frequencies. The presence of peaks in the frequency plots of dielectric loss, imaginary parts of impedance and modulus are attributed to the relaxation processes. It is also confirmed by the temperature dependence study of real part of dielectric constant. The activation energy from relaxation processes and conductivity has been evaluated.},
     year = {2013}
    }
    

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    T1  - Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor
    AU  - T. Vijay kumar
    AU  - A. Sadananda Chary
    AU  - Suresh Bhardwaj
    AU  - A. M. Awasthi
    AU  - S. Narender Reddy
    Y1  - 2013/10/30
    PY  - 2013
    N1  - https://doi.org/10.11648/j.ijmsa.20130206.12
    DO  - 10.11648/j.ijmsa.20130206.12
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
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    EP  - 178
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20130206.12
    AB  - AC conductivity, dielectric constant, loss and electric modulus of Sodium nitrate system have been studied in the frequency range from 1Hz to 10MHz and in the temperature range from 303 K to 563 K by employing impedance spectroscopy. The frequency dependent ac conductivity follows Jonscher’s universal power law. Dimensionless frequency exponent (n), dispersion parameter (A) are determined. The change over frequency independent conductivity to frequency dependent conductivity at all temperatures shows the relaxation mechanism. The variation of real part of dielectric constant with frequency shows strong dispersion at low frequencies and saturation at high frequencies. The presence of peaks in the frequency plots of dielectric loss, imaginary parts of impedance and modulus are attributed to the relaxation processes. It is also confirmed by the temperature dependence study of real part of dielectric constant. The activation energy from relaxation processes and conductivity has been evaluated.
    VL  - 2
    IS  - 6
    ER  - 

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