Switching Processes and Ferroelectric Hysteresis in Porous PZT Type Piezoceramics

会议论文
发表日期：

2024年

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I. A. Shvetsov,
N. A. Shvetsova,
E. I. Petrova,
D. I. Makarev,
A. N. Rybyanets

摘要

In present work, particular aspects of the large-signal switching properties and electromechanical hysteresis of the PZT-type porous piezoceramics were investigated by comparison with the dense piezoceramics of the same composition. Large-signal ferroelectric polarization and strain hysteresis loops were recorded at the bipolar electric fields in the range of 0–5 kV/mm and in the frequency range of 0.01–5 Hz. Measurements and analysis were performed by means of the Electromechanical Measurement System (STEPHV) and Electromechanical Response Characterization Program (STEP), combining large signal modelling of the mechanical and electrical behavior of ferroelectric materials.