Stress-Dependent Scaling Behavior of Ferroelectric Hysteresis Loop in 0–3 PZT-Cement Composites

Abstract

PZT-cement based composites are developed for use as sensors for smart concrete structures. However, these sensors would in real life be under a certain stress. PZT -cement composites were produced using 50% PZT vol. content. The ferroelectric (P-E) hysteresis behaviors and the effect of stress on the P-E hysteresis of the composites were reported. A noticeable reduction in P_ir was observed, while E_ic remained approximately the same when the stress was increased. Finally, the scaling law between the hysteresis loop area <A> and the field frequency f, field amplitude E₀ and applied compressive stress σwere shown to follow the relation .

Keywords:

• PZT
• cement
• composite
• scaling
• hysteresis loop

Funding

The research was financially supported by the Thailand Research Fund (TRF), the Commission on Higher Education (CHE), the Faculties of Science of Maejo University and the Official Agricultural Research and Extension, Maejo University Chiang Mai, Thailand.