Effect of composition on the pressure-driven ferroelectric to antiferroelectric phase transformation behavior of (Pb0.97La0.02)(Zr1−x−ySnxTiy)O3 ceramics

Power can be generated by rapidly driving a poled ferroelectric material through a ferroelectric to antiferroelectric phase transformation. The power generated depends on the maximum remnant polarization that can be obtained in the ferroelectric state and the minimum dielectric permittivity that can be obtained in the antiferroelectric state. In this study, the effect of composition on these properties was measured for compositions in the (Pb0.97La0.02)(Zr1−x−ySnxTiy)O3 system. Specimens were fabricated and characterized in the ferroelectric and antiferroelectric state under hydrostatic loading. The results are discussed in terms of their impact on an energy harvesting cycle that utilizes a ferroelectric to antiferroelectric phase transformation. The calculated maximum theoretical energy density based on the measurements was 14.5 J/cm3.