Mn- and Mn/Cu-doped PIN-PMN-PT piezoelectric ceramics for high-power transducers

Beecher H. Watson, Michael J. Brova, Mark A. Fanton, Richard J. Meyer, Gary L. Messing

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The effects of acceptor doping with manganese as either MnO2 or MnNb2O6 (MnN) with CuO on the dielectric, ferroelectric, and piezoelectric properties of PIN-PMN-PT ceramics were investigated. The 2% MnNb2O6-doped PIN-PMN-PT (6Pb(Mn1/3Nb2/3)O3-25Pb(In1/2Nb1/2)O3-34Pb(Mg1/3Nb2/3)O3-35PbTiO3) ceramics possessed hard properties such as high coercive field (EC) of 11.7 kV/cm, low dielectric loss (tan δ) of 0.7%, and high electromechanical quality factor (QM) of 1011. These properties were diminished in MnO2-doped ceramics because of lower oxygen vacancy defect concentration, and exaggerated grain growth resulted in >20 µm grain size. Co-doping with 2 mol% MnNb2O6 and 0.5 mol% CuO retained hardened properties such as high EC of 9.6 kV/cm, low tan δ of 0.6%, and high QM of 1029. MnNb2O6-doped and MnNb2O6 + Cu co-doped ceramics display excellent figures of merit for resonance and off-resonance applications as well as high energy conversion efficiencies which make them promising candidates for high-power transducer elements.

Original languageEnglish (US)
Pages (from-to)6319-6329
Number of pages11
JournalJournal of the American Ceramic Society
Volume103
Issue number11
DOIs
StatePublished - Nov 1 2020

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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