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Effect of Vanadium Doping on Microstructure and Dielectric Behavior of CaCu3Ti4O12 Ceramics

Received: 16 December 2016     Accepted: 27 December 2016     Published: 21 January 2017
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Abstract

In this work, effect of vanadium doping of CaCu3Ti4O12 (CCTO) on microstructure and complex dielectric constant over wide frequency (100 Hz-1 MHz) and temperature (0°C – 160°C) ranges has been studied. The vanadium doping of CCTO system results in an increase of grain size, the grains being surrounded by melted-like grain boundaries. Real parts of dielectric constant of all samples are similar at low frequency (<1 kHz). In doped samples, above 1 kHz, a relaxation appears which is evidenced by a drop of real part of permittivity and a peak of its imaginary part. This relaxation phenomenon is very significant at relatively low doping rates and then decreases again as vanadium content increases. AC conductivity behavior of vanadium-doped CCTO can be divided in three regions depending on conduction processes. The calculated activation energies were close to 0.46 eV.

Published in International Journal of Materials Science and Applications (Volume 6, Issue 1)
DOI 10.11648/j.ijmsa.20170601.18
Page(s) 54-64
Creative Commons

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), 2017. Published by Science Publishing Group

Keywords

Ceramics, Solid State Reaction Method, Microstructure, Dielectric Properties, Electrical Conduction

References
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Cite This Article
  • APA Style

    Séka Simplice Kouassi, Jean-Pierre Sagou Sagou, Cécile Autret-Lambert, Sonia Didry, Anoop Nautiyal, et al. (2017). Effect of Vanadium Doping on Microstructure and Dielectric Behavior of CaCu3Ti4O12 Ceramics. International Journal of Materials Science and Applications, 6(1), 54-64. https://doi.org/10.11648/j.ijmsa.20170601.18

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    ACS Style

    Séka Simplice Kouassi; Jean-Pierre Sagou Sagou; Cécile Autret-Lambert; Sonia Didry; Anoop Nautiyal, et al. Effect of Vanadium Doping on Microstructure and Dielectric Behavior of CaCu3Ti4O12 Ceramics. Int. J. Mater. Sci. Appl. 2017, 6(1), 54-64. doi: 10.11648/j.ijmsa.20170601.18

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    AMA Style

    Séka Simplice Kouassi, Jean-Pierre Sagou Sagou, Cécile Autret-Lambert, Sonia Didry, Anoop Nautiyal, et al. Effect of Vanadium Doping on Microstructure and Dielectric Behavior of CaCu3Ti4O12 Ceramics. Int J Mater Sci Appl. 2017;6(1):54-64. doi: 10.11648/j.ijmsa.20170601.18

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  • @article{10.11648/j.ijmsa.20170601.18,
      author = {Séka Simplice Kouassi and Jean-Pierre Sagou Sagou and Cécile Autret-Lambert and Sonia Didry and Anoop Nautiyal and Marc Lethiecq},
      title = {Effect of Vanadium Doping on Microstructure and Dielectric Behavior of CaCu3Ti4O12 Ceramics},
      journal = {International Journal of Materials Science and Applications},
      volume = {6},
      number = {1},
      pages = {54-64},
      doi = {10.11648/j.ijmsa.20170601.18},
      url = {https://doi.org/10.11648/j.ijmsa.20170601.18},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmsa.20170601.18},
      abstract = {In this work, effect of vanadium doping of CaCu3Ti4O12 (CCTO) on microstructure and complex dielectric constant over wide frequency (100 Hz-1 MHz) and temperature (0°C – 160°C) ranges has been studied. The vanadium doping of CCTO system results in an increase of grain size, the grains being surrounded by melted-like grain boundaries. Real parts of dielectric constant of all samples are similar at low frequency (<1 kHz). In doped samples, above 1 kHz, a relaxation appears which is evidenced by a drop of real part of permittivity and a peak of its imaginary part. This relaxation phenomenon is very significant at relatively low doping rates and then decreases again as vanadium content increases. AC conductivity behavior of vanadium-doped CCTO can be divided in three regions depending on conduction processes. The calculated activation energies were close to 0.46 eV.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Effect of Vanadium Doping on Microstructure and Dielectric Behavior of CaCu3Ti4O12 Ceramics
    AU  - Séka Simplice Kouassi
    AU  - Jean-Pierre Sagou Sagou
    AU  - Cécile Autret-Lambert
    AU  - Sonia Didry
    AU  - Anoop Nautiyal
    AU  - Marc Lethiecq
    Y1  - 2017/01/21
    PY  - 2017
    N1  - https://doi.org/10.11648/j.ijmsa.20170601.18
    DO  - 10.11648/j.ijmsa.20170601.18
    T2  - International Journal of Materials Science and Applications
    JF  - International Journal of Materials Science and Applications
    JO  - International Journal of Materials Science and Applications
    SP  - 54
    EP  - 64
    PB  - Science Publishing Group
    SN  - 2327-2643
    UR  - https://doi.org/10.11648/j.ijmsa.20170601.18
    AB  - In this work, effect of vanadium doping of CaCu3Ti4O12 (CCTO) on microstructure and complex dielectric constant over wide frequency (100 Hz-1 MHz) and temperature (0°C – 160°C) ranges has been studied. The vanadium doping of CCTO system results in an increase of grain size, the grains being surrounded by melted-like grain boundaries. Real parts of dielectric constant of all samples are similar at low frequency (<1 kHz). In doped samples, above 1 kHz, a relaxation appears which is evidenced by a drop of real part of permittivity and a peak of its imaginary part. This relaxation phenomenon is very significant at relatively low doping rates and then decreases again as vanadium content increases. AC conductivity behavior of vanadium-doped CCTO can be divided in three regions depending on conduction processes. The calculated activation energies were close to 0.46 eV.
    VL  - 6
    IS  - 1
    ER  - 

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Author Information
  • Laboratory of Environmental and Materials Chemistry, Jean Lorougnon GUEDE University, Daloa, Ivory Coast

  • Laboratory of Materials Inorganics Chemistry, Félix Houphou?t BOIGNY University, Abidjan, Ivory Coast

  • GREMAN UMR 7347 Laboratory, Fran?ois Rabelais University, Tours, France

  • GREMAN UMR 7347 Laboratory, Fran?ois Rabelais University, Tours, France

  • GREMAN UMR 7347 Laboratory, Fran?ois Rabelais University, Tours, France

  • GREMAN UMR 7347 Laboratory, Fran?ois Rabelais University, Tours, France

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