Effect of excess Pb on microstructures and electrical properties of 0.67Pb(Mg1/3Nb2/3)O3–0.33PbTiO3 ceramics

Development of High Performance Ferroelectric Material for Capacitor and Actuator Applications

“…Higher density is achieved at higher sintering temperature as higher temperature provides greater thermal activation energy for grain growth and elimination of pores thereby favours more effective sintering process. As the grain size increases the number of grain boundaries in series with perovskite grains decreases and dielectric constant increases [7,29,30,31]. …”

Synthesis and electrical properties of Pb(Mg1/3Nb2/3)O3–PbTiO3 epitaxial thin films on Si wafers using chemical solution deposition

“…Moreover, Pb deficiency leads to the formation of the pyrochlore phase and/or atomic defects, which can reduce the electrical properties of the resulting PMN-PT films. However, too much excess Pb induces the formation of a residual Pb excess phase, which may diffuse into the Si substrate, leading to reduced and unstable electrical properties even in the case of ceramics [20,21].…”

Ferroelectric phase transition and optical performance of PLZnNZT transparent ceramics

“…Fig. 1 shows XRD patterns of the PLZnNZT ceramics prepared by the hot-pressing sintering method with the addition of 2 wt% excess PbO, in which the hot-pressing sintering method and the addition of 2 wt% excess PbO tend to densify ceramics' microstructure [13,16]. Although the as-hot-pressing-sintered PLZnNZT ceramics contain slight content of impurity, determined as Pb 2 Nb 2 O 7 (JCPDS 25-444) or Pb 3 Nb 4 O 13 (JCPDS 25-443) pyrochlore phase according to the reported literatures [17][18][19], the content of pyrochlore phase tends to decrease with lamellating ceramics' thickness.…”