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Microstructural and High Tc Dielectric Properties of Microwave Sintered Ba0.7Ca0.3TiO3 (BCT) Ceramic

Received: 13 January 2017     Accepted: 11 March 2017     Published: 10 April 2017
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Abstract

Nanopowder of Ba0.7Ca0.3TiO3 (BCT) lead free ferroelectric ceramic was synthesized by hydroxide co-precipitation method. As-synthesized powder is sintered using the microwave sintering technique at different temperature 1100°C and 1200°C. Sintered ceramic samples were investigated for its structural, morphological, and temperature dependent dielectric properties. Structural analysis confirms biphasic crystal structure, tetragonal phase corresponding to BaTiO3 lattice and orthorhombic phase resulting from the CaTiO3 lattice. Scanning electron microscope images reveals the formation of grains with higher density. Ferroelectric-Paraelectric transition (Tc) of the material shifts towards higher temperature (Tc ~ 155°C) with maximum dielectric constant and low loss tangent.

Published in Colloid and Surface Science (Volume 2, Issue 2)
DOI 10.11648/j.css.20170202.15
Page(s) 76-80
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

Ferroelectrics, Microwave Sintering, Dielectric Properties, Microstructure, Phase Transformation

References
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[3] S. M. Mane, P. M. Tirmali, D. J. Salunkhe, P. B. Joshi, C. B. Kolekar, S. B. Kulkarni. J. Mater Sci: Mater Electron.; 2016, 27 (7), 7204.
[4] S. Mane, P. Tirmali, S. Kadam, A. Tarale, C. Kolekar, S. Kulkarni. J. Chin. Adv. Mate. Soci.; 2016, 4 (4), 269.
[5] P. Victor, R. Ranjith, S. B. Krupanidhi. J. Appl. Phys.; 2003, 94 (12), 7702.
[6] R. S. da Silva, J. C. M’Peko, L. da Costa Fontes, A. C. Hernandes. Mate. Res.; 2009, 12 (3), 287.
[7] O. P. Thakur, C. Prakash, D. K. Agrawal. Mate. Sci. Engg. B.; 2002, 96, 221.
[8] O. P. Thakur, C. Prakash, D. K. Agrawal. Mate. Lett.; 2002, 56, 970.
[9] X. Hao. J. Adv. Dielect.; 2013, 3 (1), (1330001) 1.
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Cite This Article
  • APA Style

    Sagar M. Mane, Pravin M. Tirmali, Snehal L. Kadam, Chandrakant B. Kolekar, Shrinivas B. Kulkarni. (2017). Microstructural and High Tc Dielectric Properties of Microwave Sintered Ba0.7Ca0.3TiO3 (BCT) Ceramic. Colloid and Surface Science, 2(2), 76-80. https://doi.org/10.11648/j.css.20170202.15

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    ACS Style

    Sagar M. Mane; Pravin M. Tirmali; Snehal L. Kadam; Chandrakant B. Kolekar; Shrinivas B. Kulkarni. Microstructural and High Tc Dielectric Properties of Microwave Sintered Ba0.7Ca0.3TiO3 (BCT) Ceramic. Colloid Surf. Sci. 2017, 2(2), 76-80. doi: 10.11648/j.css.20170202.15

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    AMA Style

    Sagar M. Mane, Pravin M. Tirmali, Snehal L. Kadam, Chandrakant B. Kolekar, Shrinivas B. Kulkarni. Microstructural and High Tc Dielectric Properties of Microwave Sintered Ba0.7Ca0.3TiO3 (BCT) Ceramic. Colloid Surf Sci. 2017;2(2):76-80. doi: 10.11648/j.css.20170202.15

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  • @article{10.11648/j.css.20170202.15,
      author = {Sagar M. Mane and Pravin M. Tirmali and Snehal L. Kadam and Chandrakant B. Kolekar and Shrinivas B. Kulkarni},
      title = {Microstructural and High Tc Dielectric Properties of Microwave Sintered Ba0.7Ca0.3TiO3 (BCT) Ceramic},
      journal = {Colloid and Surface Science},
      volume = {2},
      number = {2},
      pages = {76-80},
      doi = {10.11648/j.css.20170202.15},
      url = {https://doi.org/10.11648/j.css.20170202.15},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.css.20170202.15},
      abstract = {Nanopowder of Ba0.7Ca0.3TiO3 (BCT) lead free ferroelectric ceramic was synthesized by hydroxide co-precipitation method. As-synthesized powder is sintered using the microwave sintering technique at different temperature 1100°C and 1200°C. Sintered ceramic samples were investigated for its structural, morphological, and temperature dependent dielectric properties. Structural analysis confirms biphasic crystal structure, tetragonal phase corresponding to BaTiO3 lattice and orthorhombic phase resulting from the CaTiO3 lattice. Scanning electron microscope images reveals the formation of grains with higher density. Ferroelectric-Paraelectric transition (Tc) of the material shifts towards higher temperature (Tc ~ 155°C) with maximum dielectric constant and low loss tangent.},
     year = {2017}
    }
    

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    T1  - Microstructural and High Tc Dielectric Properties of Microwave Sintered Ba0.7Ca0.3TiO3 (BCT) Ceramic
    AU  - Sagar M. Mane
    AU  - Pravin M. Tirmali
    AU  - Snehal L. Kadam
    AU  - Chandrakant B. Kolekar
    AU  - Shrinivas B. Kulkarni
    Y1  - 2017/04/10
    PY  - 2017
    N1  - https://doi.org/10.11648/j.css.20170202.15
    DO  - 10.11648/j.css.20170202.15
    T2  - Colloid and Surface Science
    JF  - Colloid and Surface Science
    JO  - Colloid and Surface Science
    SP  - 76
    EP  - 80
    PB  - Science Publishing Group
    SN  - 2578-9236
    UR  - https://doi.org/10.11648/j.css.20170202.15
    AB  - Nanopowder of Ba0.7Ca0.3TiO3 (BCT) lead free ferroelectric ceramic was synthesized by hydroxide co-precipitation method. As-synthesized powder is sintered using the microwave sintering technique at different temperature 1100°C and 1200°C. Sintered ceramic samples were investigated for its structural, morphological, and temperature dependent dielectric properties. Structural analysis confirms biphasic crystal structure, tetragonal phase corresponding to BaTiO3 lattice and orthorhombic phase resulting from the CaTiO3 lattice. Scanning electron microscope images reveals the formation of grains with higher density. Ferroelectric-Paraelectric transition (Tc) of the material shifts towards higher temperature (Tc ~ 155°C) with maximum dielectric constant and low loss tangent.
    VL  - 2
    IS  - 2
    ER  - 

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Author Information
  • Department of Physics, the Institute Of Science, Mumbai, India

  • Department of Physics, the Institute Of Science, Mumbai, India

  • Department of Physics, the Institute Of Science, Mumbai, India

  • Department of Physics, Sahakar Maharshi Shankarrao Mohite Patil Mahavidyalaya, Natepute, Solapur, India

  • Department of Physics, the Institute Of Science, Mumbai, India

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