Good thermal stability and low dielectric loss of (K0.47Na0.47Li0.06)NbO3–(Bi0.5Na0.5)(Li0.25Ta0.75)O3 ceramics in a wide temperature range

  • Jie Sun
  • Xiuli ChenEmail author
  • Xu Li
  • Xiao Yan
  • Xiaoxia Li
  • Huanfu Zhou
  • Xiaobin Liu
  • Hong Ruan


(K0.47Na0.47Li0.06)NbO3–(Bi0.5Na0.5)(Li0.25Ta0.75)O3 [(1−x)KNLN–xBNLT, 0 ≤ x ≤ 0.02] ceramics were prepared via a traditional solid phase method. The phase structure of (1−x)KNLN–xBNLT ceramics was studied by X-ray diffraction and Raman spectroscopy. The relative permittivity of KNLN ceramics could be improved with adding BNLT. When x = 0.01, the ceramic exhibited large relative permittivity and good thermal stability from 70 to 375 °C (Δε/ε70°C ≤ ± 12%), indicating that this material could be applied in capacitors with wider working-temperature range. As x = 0.005, the ceramics exhibited high piezoelectric constant of 180 pC N−1 and good piezoelectric stability under 400 °C. The conductivity behavior of (1−x)KNLN–xBNLT ceramics at high temperature was also investigated, showing that the relaxation processes and mechanisms of conduction were thermal activation attributed by the double-ionized oxygen vacancy.



This work was supported by Natural Science Foundation of China (Grant Nos. 11664008 and 61761015), Natural Science Foundation of Guangxi (Grant Nos. 2017GXNSFDA198027 and 2017GXNSFFA198011).


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Jie Sun
    • 1
  • Xiuli Chen
    • 1
    Email author
  • Xu Li
    • 1
  • Xiao Yan
    • 1
  • Xiaoxia Li
    • 1
  • Huanfu Zhou
    • 1
  • Xiaobin Liu
    • 1
  • Hong Ruan
    • 1
  1. 1.Collaborative Innovation Center for Exploration of Hidden Nonferrous Metal Deposits and Development of New Materials in Guangxi, Key Laboratory of Nonferrous Materials and New Processing Technology, Ministry of Education, School of Materials Science and EngineeringGuilin University of TechnologyGuilinChina

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