Unidimensional model of polarisation changes in piezoelectric ceramics based on the principle of maximum entropy production

C.M. Sands, I A Guz

Research output: Contribution to journalArticle

Abstract

This paper presents a one-dimensional model for piezoelectric ceramics developed using the principle of maximum entropy production. Changes in polarisation are assumed to occur only as a consequence of domain wall movement. Such movement, it is assumed, can occur as a consequence of applied load or applied electric field. Simulations of experiments conducted by Fang and Li (J Mater Sci, 34:4001–4010, 1999) are presented and show good agreement with the experimental results. This suggests that abrupt domain switching (known to occur in piezoelectric ceramics at very high applied stresses and fields) may have less influence on the dissipative behaviour of piezoelectric sensors and actuators than previously thought.
Original languageEnglish
Pages (from-to)249-259
Number of pages11
JournalJournal of Engineering Mathematics
Volume78
Issue number1
Early online date7 Sep 2011
DOIs
Publication statusPublished - Feb 2013

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Piezoelectric Ceramics
Piezoelectric ceramics
Entropy Production
Maximum Entropy
Entropy
Polarization
Piezoelectric Sensor
Piezoelectric Actuator
Domain walls
Domain Wall
One-dimensional Model
Electric Field
Actuators
Electric fields
Sensors
Experimental Results
Model
Experiment
Simulation
Experiments

Keywords

  • domain switching
  • domain wall translation
  • ferroelectric
  • maximum entropy production
  • piezoelectric

Cite this

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