University of Illinois Urbana-Champaign

Locking of electric field induced non-180° domain switching and phase transition in ferroelectric materials upon cyclic electric fatigue

Liu, Ming; Hsia, K. Jimmy

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https://hdl.handle.net/2142/288

Description

Title
Locking of electric field induced non-180° domain switching and phase transition in ferroelectric materials upon cyclic electric fatigue
Author(s)
  • Liu, Ming
  • Hsia, K. Jimmy
Issue Date
2003-05
Keyword(s)
  • experimental solid mechanics
  • fracture
  • micromechanics
  • plasticity
Abstract
In-situ x-ray diffraction measurements are conducted on a polycrystalline ferroelectric material PZT-5H at different levels of static electric field. The locking of the electric field induced non-180° domain switching and phase transition in PZT-5H after experiencing cyclic electric field is investigated by examining the changes in pseudo-cubic diffraction profiles. The results show that cyclic electric field with an amplitude lower than the coercive field has little effect on ferroelectric fatigue of the material, whereas cyclic field with an amplitude above the coercive field results in nearly complete locking of non-180° domain switching and phase transition. The results also demonstrate that the locking occurs rather suddenly after 10^3 - 10^4 cycles. This locking phenomenon can explain the dramatic change in piezoelectric coefficients in these materials upon cyclic electric field.
Publisher
Department of Theoretical and Applied Mechanics (UIUC)
Series/Report Name or Number
TAM Reports 1025
ISSN
0073-5264
Type of Resource
text
Language
en
Permalink
http://hdl.handle.net/2142/288

Owning Collections

Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.