Synthesis, characterization, and properties of lead-based relaxor ferroelectrics

Lead-based relaxer ferroelectrics such as Pb(Mg1/3Nb2/3)O-3 (PMN), Pb(Zn(1/3)Nb(2)n)O-3 (PZN), and their solid solutions with BaTiO3 and PbTiO3 have been prepared by a solution combustion process which involves metal nitrates/oxalate and tetraformal trisazine (TFTA) at 350 degrees C. Thermal evolution of perovskite relaxors has been investigated at different temperatures of calcination using the powder x-ray diffraction method. Particles are fine and sinter-active at low temperature (1050 degrees C), Both particulate and dielectric properties are compared.