Synthesis and thermal stability of perovskite PbZr0.52Ti0.48O3 (PZT) powders via precipitation routes

Abstract

Synthesis of PbZr 0.52 Ti 0.48 O 3 (PZT) powders was realized via coprecipitation route or two-stage precipitation route. The thermal behavior and phase evolution of the PZT precursor were investigated with DTA/TG and followed with XRD, respectively. The thermal stabilities of the synthesized PZT powders were evaluated with TG. It concluded that the PZT powder prepared via two-stage precipitation route is of pure perovskite phase and of good thermal stability because the combination of Zr 4+ and Ti 4+ ions is enhanced and Pb(OH) 2 is encapsulated by (Zr 0.52 Ti 0.48 )O(OH) 2 . However, the PZT powder obtained via coprecipitation route is of poor thermal stability due to the formation and evaporation of PbO.

Effect of sol–gel pH on XRD peak broadening, lattice strain, ferroelectric domain orientation, and optical bandgap of nanocrystalline Pb1.1(Zr0.52Ti0.48)O3

“…Many chemical preparation routes such as, ultrasonic spray combustion synthesis (USCS) [14], co-precipitation [15,16], flux growth [17], hydrothermal [18], sonochemical [19], diffusion process [20] gel-combustion [21] and sol-gel methods [22][23][24][25] have been employed to prepare single-phase nanocrystalline PZT powders.…”