Abstract
Abstract A group of transparent hot-pressed ferroelectric (Pb0.92La0.08)(Zr0.65Ti0.35)098O3 ceramics with controlled grain size from 1 to 14 μm and with few pores, less than 0.2% at most, were prepared from the oxide powders by applying a hot-pressing procedure including atmosphere control. The electrical and optical constants of these ceramics were determined as a function of grain size. The effect of grain size on each measured constant, χ, was expressed by a simple equation, χ = A + B/√GS . Polarization-reversal properties were also measured and the switching time related with the space charge effects were discussed.
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