Abstract
ABSTRACT(1-x) BiYbO3-xBaTiO3 (short for BY-BT) lead-free ferroelectric ceramics were synthesized by solid state reaction method. The microstructure, dielectric and ferroelectric properties were studied as a function of the relative ratio between the two ceramics. It is found that all samples calcined at 800°C and sintered at 1050°C consist of Bi1.3Yb0.7O3 and Yb2O3 phases, which shows relatively high density. The highest relative density (ρ = 99.8%) and shrinkage (α = 13%) of BY-BT ceramics is obtained at x = 0.05. The maximum value of the remanent polarization (Pr) (Prmax = 0.1286 μC/cm2) can be obtained when x = 0.1. These results indicate a possible treat method to optimize the properties of two solid solutions.
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