Dynamic Observation of Crack Propagation in Piezoelectric Multilayer Actuators

Atsushi Furuta, Kenji Uchino

Research output: Contribution to journalArticle

194 Scopus citations

Abstract

Crack propagation in multilayer piezoelectric actuators made of Pb((Ni1/3Nb2/3), Ti, Zr)O3 ceramics with an interdigital electrode configuration was observed dynamically under an applied cyclic electric field using charge coupled device microscopy. The crack was observed only under a high electric field, and it healed under zero field. The crack was initiated at the internal electrode edge and propagated from the electrode edge in three directions. The electric‐field‐induced displacement was measured simultaneously with the propagation. The displacement of the multilayer actuator became gradually smaller and asymmetric with respect to the sign of the field with increased driving cycle.

Original languageEnglish (US)
Pages (from-to)1615-1617
Number of pages3
JournalJournal of the American Ceramic Society
Volume76
Issue number6
DOIs
StatePublished - Jun 1993

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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