Phase formation and transitions in the lead magnesium niobate–lead zirconate titanate system

The phase formation and transition mechanism of perovskite ceramics in the (1 − x)Pb(Mg0.33Nb0.66)O3–xPb(Zr0.52Ti0.48)O3, (1 − x)PMN–xPZT system prepared by a modified mixed-oxide synthetic route have been investigated for various chemical compositions and firing temperatures. Lattice parameter changes were examined as a function of composition. It is seen that perovskite phases undergo the transitions (pseudo)cubic to tetragonal in the x value range 0.0–1.0. The degree of tetragonality and average lattice parameters were found to increase with PZT content across the whole solid solution range.