Thermodynamic Phenomenology for Perovskite Structure Ferroelectric Solid Solutions with Morphotropic Phase Boundaries

Abstract

The report covers the period June 1 2001 to April 30% 2004 on the Office of Naval Research Grant N00014 01-1-870 on the topic "Thermodynamic Phenomenology for Perovskite Structure Ferroelectric Solid Solutions with Morphotropic Phase Boundaries". Topics for study which will be reported include: Lower temperature (down to 12K) studies of the dielectric properties of single crystal lead zinc niobate: lead titanate. Studies of a new two order parameter model for lead zirconate titanate which leads naturally to the occurrence of the lower temperature monoclinic phase interleaving the tetragonal: rhombohedral classical MPB. Application of the flexoelectric measurement technique developed on the ONR US; Japan Global studies program to explore strain gradient drive of ferroelastic domain walls and the development of a new thermodynamic function for BaTiO3 to better describe the high temperature phase transitions evidenced under large epitaxial strains in thin BaTiO3 films on non matching substrates.

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Document Details

Document Type
Technical Report
Publication Date
Dec 13, 2005
Accession Number
ADA441936

Entities

People

  • Leslie Eric Cross

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Chemistry
  • Crystal Structure
  • Crystals
  • Curie Temperature
  • Dielectric Permittivity
  • Dielectric Properties
  • Dielectrics
  • Electronic Mail
  • Lead Zirconate Titanates
  • Materials
  • Materials Science
  • Measurement
  • Phase Transformations
  • Piezoceramics
  • Piezoelectric Crystals
  • Transition Temperature

Readers

  • Materials Science and Engineering.
  • Technical Research and Report Writing.