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Journal of Electroceramics

, Volume 21, Issue 1–4, pp 549–552 | Cite as

Study of the electrical properties of Pb(Zn,Ni)1/3Nb2/3O3–PbTiO3 ceramics across the morphotropic phase boundary

  • Jing-Song Pan
  • Xiao-Wen Zhang
  • Ke-Pi Chen
Article
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Abstract

Structure and electrical properties of (1 − x)Pb(Zn0.2Ni0.8)1/3Nb2/3O3xPbTiO3 ceramics with x = 0.24–0.38 were examined in detail. X-ray diffraction measurements reveal that all samples are in pure perovskite phase, and most of them lie within the morphotropic phase boundary (MPB) region. The dielectric behaviors of all compositions are characterized with diffuse phase transition and frequency dispersion. The variable power law and the Vogel–Fulcher relation have been used to describe such dielectric behaviors. The highest dielectric constant and the largest piezoelectric coefficient are simultaneously observed when x = 0.30. The variation of the ferroelectric property with PT content is also discussed.

Keywords

Morphotropic phase boundary Perovskite phase Electrical properties Relaxor ferroelectrics 

Notes

Acknowledgments

This work is a part of Project 50432030 supported by National Natural Science Foundation of China.

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and EngineeringTsinghua UniversityBeijingPeople’s Republic of China
  2. 2.Department of PhysicsTsinghua UniversityBeijingPeople’s Republic of China

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