Dielectric and Electrostrictive Properties of Pb(Zn_1/3Nb_2/3)O₃–Pb(Mg_1/3Nb_2/3)O₃–PbTiO₃ Ceramic Solid Solutions

Abstract

The possibilities and implications of thermal analogues to the electrical anomalies observed recently in fine wires are discussed.

Complex Oxide Ferroelectric Ceramics Pb(Ni1/3Nb2/3)O3–Pb(Zn1/3Nb2/3)O3–Pb(Mg1/3Nb2/3)O3–PbZrO3–PbTiO3 with a Low Sintering Temperature

“…O ne of the main challenges in developing lead‐based electronic ceramics is to obtain compositions that can form the desired structure and be sintered to a high density at low temperatures, to enable the use of cheaper electrodes and to reduce the energy consumption 1–4 . Existing lead‐based materials 5,6 such as lead zirconate titanate (PZT), lead magnesium niobate (PMN), lead zirconate (PZ), and lead titanate (PT) have been widely used as capacitors, transducers, and actuators for many different applications 7,8 . Extensive research work 9 has been carried out to improve the performance of these perovskite ceramics through chemical doping 1,10 or synthesizing multi‐component solid solutions 3,4,8–11 with a single perovskite phase.…”

“…As for PT, it is a normal ferroelectric with a Curie temperature at 490°C, 12 while PZ has a transition temperature of 230°C 16 from an orthorhombic to cubic structure. PT often serves as a perovskite phase stabilizer 5,8,11–13,15–17 and also changes the relaxor behavior 18 for PMN, PNN, and PZN to normal ferroelectric ceramics. By varying the composition using different ratios among the constituents, the piezoelectric and dielectric properties for Pb‐based perovskite ceramics can be tailored as long as the desired perovskite phase can be stabilized 18 .…”