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Structure and Physical Properties of ZnO-Doped KNLN Lead-Free Piezoelectric Ceramics

Received: 27 October 2016     Accepted: 22 November 2016     Published: 3 January 2017
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Abstract

The ZnO-doped 0.96(K0.5Na0.5)NbO3–0.04LiNbO3 (KNLN) piezoelectric ceramics were prepared by conventional ceramics process, using oxides and carbonates mixture, sintered in the solid state at 1050°C. Effect of ZnO on structure and dielectric, ferroelectric, piezoelectric properties of KNLN ceramics were studied. The experimental results showed that the ZnO-doped KNLN ceramics have the pure perovskite structure with orthorhombic symmetry at x  0.5 wt.% ZnO. The ZnO addition significantly improved the electrical properties of KNLN ceramics. At ZnO content of 0.5 wt.%, the electrical properties of ceramics are the best: kp=0.35, kt=0.45, d31=52pC/N, Qm=33, Pr=8.0 C/cm2.

Published in Composite Materials (Volume 1, Issue 1)
DOI 10.11648/j.cm.20170101.11
Page(s) 1-7
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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.

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Copyright © The Author(s), 2017. Published by Science Publishing Group

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Keywords

Lead-Free Piezoceramics, Crystal Structure, ZnO Addition, Dielectric

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    Phan Dinh Gio, Van Thi Bich Thuy. (2017). Structure and Physical Properties of ZnO-Doped KNLN Lead-Free Piezoelectric Ceramics. Composite Materials, 1(1), 1-7. https://doi.org/10.11648/j.cm.20170101.11

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    Phan Dinh Gio; Van Thi Bich Thuy. Structure and Physical Properties of ZnO-Doped KNLN Lead-Free Piezoelectric Ceramics. Compos. Mater. 2017, 1(1), 1-7. doi: 10.11648/j.cm.20170101.11

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    AMA Style

    Phan Dinh Gio, Van Thi Bich Thuy. Structure and Physical Properties of ZnO-Doped KNLN Lead-Free Piezoelectric Ceramics. Compos Mater. 2017;1(1):1-7. doi: 10.11648/j.cm.20170101.11

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  • @article{10.11648/j.cm.20170101.11,
      author = {Phan Dinh Gio and Van Thi Bich Thuy},
      title = {Structure and Physical Properties of ZnO-Doped KNLN Lead-Free Piezoelectric Ceramics},
      journal = {Composite Materials},
      volume = {1},
      number = {1},
      pages = {1-7},
      doi = {10.11648/j.cm.20170101.11},
      url = {https://doi.org/10.11648/j.cm.20170101.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.cm.20170101.11},
      abstract = {The ZnO-doped 0.96(K0.5Na0.5)NbO3–0.04LiNbO3 (KNLN) piezoelectric ceramics were prepared by conventional ceramics process, using oxides and carbonates mixture, sintered in the solid state at 1050°C. Effect of ZnO on structure and dielectric, ferroelectric, piezoelectric properties of KNLN ceramics were studied. The experimental results showed that the ZnO-doped KNLN ceramics have the pure perovskite structure with orthorhombic symmetry at x  0.5 wt.% ZnO. The ZnO addition significantly improved the electrical properties of KNLN ceramics. At ZnO content of 0.5 wt.%, the electrical properties of ceramics are the best: kp=0.35, kt=0.45, d31=52pC/N, Qm=33, Pr=8.0 C/cm2.},
     year = {2017}
    }
    

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  • TY  - JOUR
    T1  - Structure and Physical Properties of ZnO-Doped KNLN Lead-Free Piezoelectric Ceramics
    AU  - Phan Dinh Gio
    AU  - Van Thi Bich Thuy
    Y1  - 2017/01/03
    PY  - 2017
    N1  - https://doi.org/10.11648/j.cm.20170101.11
    DO  - 10.11648/j.cm.20170101.11
    T2  - Composite Materials
    JF  - Composite Materials
    JO  - Composite Materials
    SP  - 1
    EP  - 7
    PB  - Science Publishing Group
    SN  - 2994-7103
    UR  - https://doi.org/10.11648/j.cm.20170101.11
    AB  - The ZnO-doped 0.96(K0.5Na0.5)NbO3–0.04LiNbO3 (KNLN) piezoelectric ceramics were prepared by conventional ceramics process, using oxides and carbonates mixture, sintered in the solid state at 1050°C. Effect of ZnO on structure and dielectric, ferroelectric, piezoelectric properties of KNLN ceramics were studied. The experimental results showed that the ZnO-doped KNLN ceramics have the pure perovskite structure with orthorhombic symmetry at x  0.5 wt.% ZnO. The ZnO addition significantly improved the electrical properties of KNLN ceramics. At ZnO content of 0.5 wt.%, the electrical properties of ceramics are the best: kp=0.35, kt=0.45, d31=52pC/N, Qm=33, Pr=8.0 C/cm2.
    VL  - 1
    IS  - 1
    ER  - 

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Author Information
  • Department of Physics, Hue University College of Sciences, Hue City, Vietnam

  • Department of Physics, Hue University College of Sciences, Hue City, Vietnam

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