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Structure and ferroelectric property of Nb-doped SrBi4Ti4O15 ceramics

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Abstract

Nb-doped SrBi4Ti4O15 (SBT) was produced by conventional method. Structural and ferroelectric properties of SBT were examined as a function of niobium composition. Analyzing the structure futures of SBT by XRD, XPS and Raman spectrum, Nb5+ substituted Ti4+ to form NbO6 octahedron and did not change the structure of SBT. The XRD patterns indicated the formation of the single phase of SBT for x = 0.01and 0.03 and secondary phase of Sr3Ti2O7 appeared when x > 0.1. To compare the effect of Nb doping, the ferroelectric properties (hysteresis loop, piezoelectric coefficient) of Nb-doped SBT were measured. The SBT doped with x = 0.15 was found to exhibit higher remanent polarization with d 33 = 17 pC/N.

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Acknowledgement

The authors would like to acknowledge the support of the Natural Science Foundation of China (NSFC, Grant no. 50472016, 50502027), the main project of the Ministry of Education of China (MOE) and 973-Project (2002 CB613303) of China.

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Authors and Affiliations

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Material Science and Engineering School, Key Laboratory for Silicate Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, People’s Republic of China

    Hua Hao, Hanxing Liu & Shixi Ouyang

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  1. Hua Hao
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  2. Hanxing Liu
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  3. Shixi Ouyang
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Correspondence to Hua Hao.

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Hao, H., Liu, H. & Ouyang, S. Structure and ferroelectric property of Nb-doped SrBi4Ti4O15 ceramics. J Electroceram 22, 357–362 (2009). https://doi.org/10.1007/s10832-007-9180-9

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  • DOI: https://doi.org/10.1007/s10832-007-9180-9

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