Abstract
Abstract Ferroelectric lead zirconate titanate–lead cobalt niobate ceramics with the formula (1 − x )Pb(Zr 1/2 Ti 1/2 )O 3 – x Pb(Co 1/3 Nb 2/3 )O 3 where x = 0.0–0.5 were fabricated using a high temperature solid-state reaction method. The formation process, the structure and homogeneity of the obtained powders have been investigated by X-ray diffraction method as well as the simultaneous thermal analysis of both differential thermal analysis (DTA) and thermogravimetry analysis (TGA). It was observed that for the binary system (1 − x )Pb(Zr 1/2 Ti 1/2 )O 3 – x Pb(Co 1/3 Nb 2/3 )O 3 , the change in the calcination temperature is approximately linear with respect to the PCoN content in the range x = 0.0–0.5. In addition, X-ray diffraction indicated a phase transformation from a tetragonal to a pseudo-cubic phase when the fraction of PCoN was increased. The dielectric permittivity is remarkably increased by increasing PCoN concentration. The maximum value of remnant polarization P r (25.3 μC/cm 2 ) was obtained for the 0.5PZT–0.5PCoN ceramic.
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