University of Illinois Urbana-Champaign

Electrically induced antiferroelectric-ferroelectric phase transformations in lead-zirconate titanate stannate ceramics

Yang, Pin

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https://hdl.handle.net/2142/19652

Description

Title
Electrically induced antiferroelectric-ferroelectric phase transformations in lead-zirconate titanate stannate ceramics
Author(s)
Yang, Pin
Issue Date
1992
Doctoral Committee Chair(s)
Payne, David A.
Department of Study
Materials Science and Engineering
Discipline
Materials Engineering
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
  • Engineering, Electronics and Electrical
  • Engineering, Mechanical
  • Engineering, Materials Science
Language
eng
Abstract
Antiferroelectric(AFE)-ferroelectric(FE) phase transformations in the tin modified lead zirconate-lead titanate (Pb(Zr,Sn,Ti)O$\sb3,$ i.e., PZST) system were investigated. The field-induced transformation behavior was studied as a function of temperature, pressure, and microstructure. Emphasis is placed on (i) the thermal stability of the AFE-FE transformation, including thermal hysteresis, (ii) microstructure-property relations, and (iii) electromechanical response of the field-induced transformation behavior for actuator applications. A thermodynamic model is proposed to account for the thermal stability of the field-induced transformation characteristics, including reversible and irreversible phenomena. Results are interpreted in terms of thermodynamic relations, and are shown to be interrelated and self-consistent. Fundamental issues underlying the thermodynamic relationships are discussed from the perspective of lattice dynamics theory.
Type of Resource
text
Permalink
http://hdl.handle.net/2142/19652
Copyright and License Information
Copyright 1992 Yang, Pin

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