Ferroelectric properties of (1 − x)Bi(Zn_1/2Ti_1/2)O₃–xPbZrO₃ ceramics

摘要

The (1 − x)Bi(Zn_1/2Ti_1/2)O₃–xPbZrO₃ solid solution ceramics were prepared by using solid-state reaction method, and their ferroelectric properties were investigated. It was found that the perovskite structure is stable for compositions with x ≥ 0.900. Within this composition range, the crystal structure of the solid solution preserves the orthorhombic symmetry of PbZrO₃ (PZ). The Curie point of the ceramics was found to decrease with increasing Bi(Zn_1/2Ti_1/2)O₃ (BZT) content. The intermediate ferroelectric phase of PZ was stabilized by BZT addition and exists within a much wider temperature range in the solid solution.