Impurity doping effect on electrostrictive properties of (Pb,Ba) (Zr,Ti)O3

The effect of impurity doping on the electrostrictive properties (the magnitude of the induced strain and hysteresis) has been investigated for (Pb,Ba) (Zr,Ti)O3 ceramics. When doping with a donor impurity, the strain becomes larger and the degree of hysteresis becomes smaller than that observed for non-doped samples, while acceptor doping leads to a smaller strain and a larger degree of hysteresis. The strain and hysteresis are also influenced by the concentration of the metal oxide dopant.