A ferroelastic switching model for lead zirconate-titanate (PZT)

Brian L. Ball; Ralph C. Smith; Sang-Joo Kim; Stefan Seelecke

doi:10.1117/12.599898

19 May 2005 A ferroelastic switching model for lead zirconate-titanate (PZT)

Brian L. Ball, Ralph C. Smith, Sang-Joo Kim, Stefan Seelecke

Proceedings Volume 5757, Smart Structures and Materials 2005: Modeling, Signal Processing, and Control; (2005) https://doi.org/10.1117/12.599898
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2005, San Diego, California, United States

Abstract

This paper develops a macroscopic polarization switching model which characterizes the ferroelastic switching mechanisms inherent to lead zirconate-titanate (PZT) in a manner suitable for subsequent transducer and control design. We construct Helmholtz and Gibbs energy relations at the lattice level which quantify the internal and electrostatic energy associated with 90 and 180 degree dipole orientations. Equilibrium relations appropriate for homogeneous materials in the presence of thermal relaxation are determined by balancing the Gibbs and relative thermal energies using Boltzmann principles. Macroscopic models suitable for nonhomogeneous, polycrystalline compounds are constructed through stochastic homogenization techniques. Attributes and limitations of the model are illustrated through comparison with experimental PLZT data.

Citation Download Citation

Brian L. Ball, Ralph C. Smith, Sang-Joo Kim, and Stefan Seelecke "A ferroelastic switching model for lead zirconate-titanate (PZT)", Proc. SPIE 5757, Smart Structures and Materials 2005: Modeling, Signal Processing, and Control, (19 May 2005); https://doi.org/10.1117/12.599898

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