Effect of tungsten on the structure and piezoelectric properties of PZN-PZT ceramics

Feng Gao, Chun juan Wang, Xiang chun Liu, Chang sheng Tian

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

0.2PZN-0.8PZT ceramics with pure perovskite structure were prepared by the two-step method with the addition of 0-1.5 wt.% WO3 and their piezoelectric properties were investigated. The WO3 addition influences the lattice structure and W6+ will replace B-site ions of perovskite, which will lead to the decrease of the lattice constant. Compared to the increase of the dielectric constant (ε) and mechanical quality factor (Qm), the values of coercive electric field (Ec), remnant polarization (Pr), electromechanical coupling factor (Kp), and piezoelectric constant (d33) decrease with increasing WO3 addition. The composition with 1.0 wt.% of WO3 addition on 0.2PZN-0.8PZT ceramics exhibits excellent piezoelectric properties, showing great promise as practical materials for high power piezoelectric devices.

Original languageEnglish
Pages (from-to)1019-1023
Number of pages5
JournalCeramics International
Volume33
Issue number6
DOIs
StatePublished - Aug 2007

Keywords

  • C. Piezoelectric properties
  • Hysteresis loop
  • Lattice structure
  • Tungsten doping

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