Phase transition behavior in the morphotropic region of(x)pbtio3−(0. 98−x)Pbzro3−0. 02 (PbWO.5Cdo. 5O3

Abstract A relation between structural and electrophysical properties of (x)PbTiO3− (0.98−x) PbZrO3−0, 02 (PbWo.5Cdo.5O3) solid solution system is examined. It is found that the extent of phase transition diffuseness in the morphotropic region depends on the spontaneous deformations, phase compositions and relative unit cell volumes of the tetragonal and rhombohedral phases. The diffuseness of the phase transitions is largely determined by severity of residual local stresses at domain boundaries.