Nonlinear shear response in (K,Na)NbO3-based lead-free piezoelectric ceramics

Manabu Hagiwara, Seita Takahashi, Takuya Hoshina, Hiroaki Takeda, Osamu Sakurai, Takaaki Tsurumi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The piezoelectric shear response of 94.0(Ka0.5, Na 0.5)NbO3 (KNN) + 5.0LiNbO3 (LN) + 0.5SrTiO 3 (ST) + 0.5BiFeO3 (BF) ceramics was investigated by Laser Doppler Vibrometry (LDV) and resonance-antiresonance method. From resonance-antiresonance method, the piezoelectric d15 constant was obtained to be 273 pC/N. The shear strain obtained by LDV at the frequency of 150kHz showed strong nonlinearity. This suggested that the domain contribution to piezoelectric response in shear mode of KNN-LN-ST-BF ceramics existed at the operational frequency for the shear mode divices.

Original languageEnglish
Title of host publicationElectroceramics in Japan XIII
PublisherTrans Tech Publications Ltd
Pages47-50
Number of pages4
ISBN (Print)9780878492640
DOIs
Publication statusPublished - 2010 Jan 1
Externally publishedYes

Publication series

NameKey Engineering Materials
Volume445
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Keywords

  • Domain
  • Lead-free
  • Non-linear
  • Piezoelectric
  • Shear mode

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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