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Journal of Advanced Ceramics

, Volume 7, Issue 1, pp 79–87 | Cite as

Multi-phase structure and electrical properties of Bi0.5Li0.5ZrO3 doping K0.48Na0.56NbO3 lead-free piezoelectric ceramics

  • Xiaoyan Peng
  • Boping Zhang
  • Lifeng Zhu
  • Lei Zhao
  • Ruixiao Ma
  • Bo Liu
  • Xiaodong Wang
Open Access
Research Article
  • 195 Downloads

Abstract

(1–x)K0.48Na0.56NbO3xBi0.5Li0.5ZrO3 (KNN–xBLZ, x = 0–0.06) lead-free piezoelectric ceramics were prepared by the conventional solid-state sintering method, and their phase structures and electric properties as well as TC were systematically investigated. The orthorhombic–tetragonal (O–T) two phases were detected in all (1–x)K0.48Na0.56NbO3xBi0.5Li0.5ZrO3 ceramics at 0.01 ≤ x ≤ 0.05. Due to the appropriate ratio between O phase and T phase (CO/CT= 45/55), high piezoelectric properties of d33 = 239 pC/N, kp = 34%, and Pr = 25.23 μC/cm2 were obtained at x = 0.04. Moreover, a high TC = 348°C was also achieved in KNN–xBLZ ceramic at x = 0.04. These results indicate that (1–x)K0.48Na0.56NbO3xBi0.5Li0.5ZrO3 system is a promising candidate for high-temperature piezoelectric devices.

Keywords

lead-free piezoelectric ceramics potassium–sodium niobate (KNN) solid-state sintering multi-phase electrical properties 

Notes

Acknowledgements

This work was supported by Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20130006110006) and National Natural Science Foundation of China (Grant Nos. 51272023 and 51472026).

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© The Author(s) 2017

Open Access The articles published in this journal are 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, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  • Xiaoyan Peng
    • 1
    • 2
  • Boping Zhang
    • 1
  • Lifeng Zhu
    • 1
  • Lei Zhao
    • 3
  • Ruixiao Ma
    • 1
  • Bo Liu
    • 1
  • Xiaodong Wang
    • 1
  1. 1.School of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijingChina
  2. 2.New Metallurgy Hi-Tech Group Co., Ltd., China Iron & Steel Research Institute GroupBeijingChina
  3. 3.Hebei Key Lab of Optic-Electronic Information and Materials, College of Physics Science & TechnologyHebei UniversityBaodingChina

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