Abstract
Scandium free piezoelectric ceramics of the composition (1 − x)Bi(Mg 1 / 2 Zr 1 / 2 )O 3 − xPbTiO 3 (BMZ − xPT) were fabricated by the solid state reaction method. Dielectric and structural properties were measured and phase diagram was constructed from the temperature dependent dielectric and impedance data. The morphotropic phase boundary (MPB) was found to be located in the range 0.55 < x < 0.60 with paraelectric–ferroelectric phase transition temperature, T C (∼ 280 °C). The ceramics near the MPB showed high room temperature dielectric constant (∼ 1387). The room temperature values of the remanent polarization ( P r) and coercive filed ( E C), were ∼ 29 μC/cm 2 and ∼ 23 kV/cm, respectively.
Published Version
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