Effects of Calcining Temperature on Structure and Dielectric and Ferroelectric Properties of Sol-Gel Synthesized Ba0.85Ca0.15Zr0.1Ti0.9O3 Ceramics

  • X. W. WangEmail author
  • B. H. Zhang
  • G. Feng
  • L. Y. Sun
  • Y. C. Shi
  • Y. C. Hu
  • J. Shang
  • S. Y. Shang
  • S. Q. Yin
  • X. E. Wang


Ba0.85Ca0.15Zr0.1Ti0.9O3 (BCZT) powders were prepared by sol-gel process followed by calcining at different temperatures varying from 600°C to 950°C, and the BCZT ceramics were then prepared using the as-synthesized powders. The effect of calcining temperature on structure, dielectric properties and ferroelectric properties of BCZT ceramics were studied. Impurity was observed in powders calcined at 600°C, and single-phase perovskite structure was obtained when calcining temperature increased to 650°C, which was significantly lower than that of the solid-state reaction. The high-density ceramics with homogenous microstructure were obtained by sintering at 1300°C for 2 h. The dielectric constants as a function of measuring temperature exhibited a diffuse phase transition peak. With the increase of calcining temperature, the slimmer P–E loops were obtained, and the BCZT ceramic calcined at 950°C exhibits a relatively high dielectric constant (εr = 2013) and low dielectric loss (tan δ = 0.020) at 1 kHz and room temperature.


Sol-gel calcining temperature microstructure dielectric ferroelectric 


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This work has been supported by the National Natural Science Foundation of China (Nos. 51402091, 51601059), the Key Scientific Research Foundation in Henan Province (No. 19B430005), the Special Scientific Research Foundation in Henan Normal University (No. 20180543), and the National University Student Innovation Program (No. 20160098).


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • X. W. Wang
    • 1
    Email author
  • B. H. Zhang
    • 1
    • 2
  • G. Feng
    • 1
  • L. Y. Sun
    • 1
  • Y. C. Shi
    • 1
  • Y. C. Hu
    • 1
  • J. Shang
    • 1
  • S. Y. Shang
    • 1
  • S. Q. Yin
    • 1
  • X. E. Wang
    • 1
  1. 1.Laboratory of Functional Materials, College of Physics and Materials ScienceHenan Normal University, and Henan Key Laboratory of Photovoltaic MaterialsXinxiangPeople’s Republic of China
  2. 2.Laboratory of Dielectric Materials, School of Materials Science and EngineeringZhejiang UniversityHangzhouPeople’s Republic of China

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