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Effect of sintering temperature on structure and dielectric behavior of 0.95(Bi0.5Na0.5)0.97(Li0.5Nd0.5)0.03TiO3–0.05BaTiO3 ceramics

  • Zhenyong Cen
  • Changrong Zhou
  • Xinglang Ye
  • Yazhou Zhao
  • Fangyu Gan
  • Huanhua Zhang
Article

Abstract

Lead free 0.95(Bi0.5Na0.5)0.97(Li0.5Nd0.5)0.03TiO3–0.05BaTiO3 (BNTLN0.03–BT5) ceramics were synthesized by conventional solid state reaction route. The effect of sintering temperature (T s) on structure and dielectric behaviors of BNTLN0.03–BT5 ceramics is investigated systematically. With increasing T s, the structure of BNTLN0.03–BT5 ceramics transforms from rhombohedral symmetry to pseudo-cubic symmetry. The grain size increases from ~4 to ~10 μm with increasing T s. The dielectric constants ε r, dielectric losses tanδ and dielectric frequency dispersion increase gradually at room temperature with increasing T s. The temperature stability coefficient f ε of dielectric constant ε r and the diffuseness coefficient γ increases with increasing T s. The sharp increase of dielectric constant ε r in the frequency of 1 kHz above T m is suppressed with increasing T s due to reducing Maxwell–Wagner polarization.

Keywords

BaTiO3 Piezoelectric Ceramic Dielectric Behavior Morphotropic Phase Boundary Ferroelectric Domain 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This work was supported by the National Nature Science Foundation of China (61261012, 61361007 and 11364008) and Guangxi Key Laboratory of Information Materials (131001-Z).

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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • Zhenyong Cen
    • 1
  • Changrong Zhou
    • 1
  • Xinglang Ye
    • 1
  • Yazhou Zhao
    • 1
  • Fangyu Gan
    • 1
  • Huanhua Zhang
    • 1
  1. 1.School of Material Science and EngineeringGuilin University of Electronic TechnologyGuilinPeople’s Republic of China

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