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Electromechanical properties of Mn-doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 piezoelectric ceramics

  • Xudong Qi
  • , Enwei Sun*
  • , Junjun Wang
  • , Rui Zhang
  • , Yang Bin Yang
  • , Wenwu Cao
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Pennsylvania State University

Research output: Contribution to journalArticlepeer-review

Abstract

The dielectric, piezoelectric, and ferroelectric properties of Mn-doped and undoped yPb(In1/2Nb1/2)O3-(1−x−y)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PIN-PMN-PT) ternary ceramics with morphotropic phase boundary composition have been investigated. Mn-doped PIN-PMN-PT ceramics show obvious hardening characteristics. With 2 mol% Mn doping the mechanical quality factor Qm can be increased to as high as 2000, while the electromechanical coupling factor (kp=57%) is still comparable to that of the undoped counterpart. The internal bias field Ei was analyzed and calculated based on the P-E hysteresis loops for the Mn-doped PIN-PMN-PT ceramic. The relatively high Curie temperature, very high Qm, and low dielectric loss make the Mn-doped PIN-PMN-PT ceramics good candidates for high power and high temperature electromechanical device applications.

Original languageEnglish
Pages (from-to)15332-15337
Number of pages6
JournalCeramics International
Volume42
Issue number14
DOIs
StatePublished - 1 Nov 2016

Keywords

  • Internal bias field
  • Mechanical quality factor
  • PIN-PMN-PT ceramic
  • Piezoelectric

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