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Investigation of dielectric and piezoelectric properties in aliovalent Eu3+-modified Pb(Mg1/3Nb2/3)O3-PbTiO3 ceramics

  • Qinghu Guo
  • , Lintao Hou
  • , Fei Li
  • , Fangquan Xia
  • , Pengbin Wang
  • , Hua Hao
  • , Huajun Sun*
  • , Hanxing Liu
  • , Shujun Zhang*
  • *Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

Rare earth (Eu3+)-modified Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT) polycrystalline ferroelectric ceramics were fabricated by high-temperature solid-state sintering, the phase structure, dielectric and piezoelectric properties were investigated. Eu3+ addition was found to significantly improve dielectric and piezoelectric properties of PMN-PT, where the optimized properties were achieved for the composition of 2.5 mol%Eu: 0.72PMN-0.28PT, with the piezoelectric d33 = 1420 pC/N, dielectric εr = 12 200 and electromechanical k33 = 0.78, respectively. All these results indicate that the Eu3+-doped PMN-PT ceramics are promising candidates for high-performance room-temperature piezoelectric devices. © 2019 The American Ceramic Society.
Original languageEnglish
Pages (from-to)7428-7435
Number of pages8
JournalJournal of the American Ceramic Society
Volume102
Issue number12
Online published19 Jun 2019
DOIs
Publication statusPublished - Dec 2019
Externally publishedYes

Funding

This work was supported by NSFC-Guangdong Joint Funds of the Natural Science Foundation of China (No. U1601209), Major Program of the Natural Science Foundation of China (51790490) and the Technical Innovation Program of Hubei Province (Grant No. 2017AHB055).

Research Keywords

  • dielectric properties
  • electromechanical properties
  • piezoelectric properties

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