Abstract
Abstract Dielectric, ferroelectric and electric field-induced strain properties of (Pb1-xBax)(Zr1-yTiy)O3 ceramics with 0.15 ≤ x ≤ 0.45 and 0.16 ≤ y ≥ 0.70 were investigated. A wide range of compositions possessing relaxor phase characteristics was found to exist near the boundaries between the ferroelectric rhombohedral, tetragonal and paraelectric cubic phases. Within this compositional range, broadened peaks of dielectric constant as a function of both composition and temperature were identified as well as slim loop hysteresis and frequency-dependent relaxation behavior. Longitudinal field-induced strain for some selected samples and transverse strain for all the compositions studied were determined. Maximum total and differential strains were found in the vicinity of the rhombohedral-tetragonal phase boundary. Optimal values of the differential strain were close to (about 80%) those found in PLZT ceramics. Inside the relaxor phase region the relationship between the strain and electric field (or polar...
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