Abstract
Lead-free ceramics with compositions of (1−x)[0.67Bi1.05FeO3-0.33BaTiO3]-xBaZrO3 (x = 0.00, 0.01, 0.02, 0.03, 0.04, and 0.05) [BF-BT-BZx] have been prepared through a conventional solid-state reaction method. The effects of BZ substitution on the crystal structural, microstructural, piezoelectric, and electrical properties of the ceramics were investigated. The X-ray diffraction patterns revealed that all ceramics were formed with a mixed structure of rhombohedral and tetragonal perovskite phases. For x = 0.03, good ferroelectric and piezoelectric properties were observed: 2P r = 43 μC/cm2 and 2E c = 61 kV/cm. The static- and dynamic-piezoelectric constants were observed to be 52 pC/N and 330 pm/V, respectively.
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