Effect of uniaxial stress on the large-signal electromechanical properties of electrostrictive and piezoelectric lead magnesium niobate lead titanate ceramics

Abstract

The electromechanical performance characteristics of electrostrictive 0.9 Pb(Mg1/3Nb2/3)O3–0.1 PbTiO3 and piezoelectric 0.7 Pb(Mg1/3Nb2/3)O3–0.3 PbTiO3 ceramics have been investigated under uniaxial stress (σ). The results demonstrate that the large-signal electromechanical properties of electrostrictive ceramics are decreased with increasing σ, whereas those of the piezoelectric are increased but accompanied by significantly increased hysteretic losses.

Ferroelectric properties of Pb(Zr1/2Ti1/2)O3–Pb(Zn1/3Nb2/3)O3 ceramics under compressive stress

“…[12]. The results of the changes of the hysteresis parameters of the ferroelectric PZT-PZN ceramics with increasing compressive stress are in agreement with the previous investigations on many ferroelectric ceramics [5,7,12,26,27].…”

“…A prior knowledge of how the material properties change under different load conditions is therefore very crucial for proper design of a device and for suitable selection of materials for a specific application. Despite the fact, material constants used in many design calculations are often obtained from a stress-free measuring condition, which in turn may lead to incorrect or inappropriate actuator and transducer designs [4,5]. It is therefore important to determine the properties of these materials as a function of applied stress.…”

High-field and high-Tc piezoelectric ceramics based on Bi(Ga,Fe)O3-PbTiO3 crystalline solutions

“…11,12 Additional investigations are necessary to check out our hypotheses, which will be reported in an additional paper. Stresses were naturally produced between the switched and nonswitched areas.…”

Effects of uniaxial stress on dielectric properties of 0.9PMN–0.1PT ceramics

“…More interestingly, earlier work by Viehland et al [13] reported the large-signal polarization-electric field (P-E) relation under uniaxial stress of 0.9PMN-0.1PT ceramic. For comparison, one would be able to estimate from the P-E loops presented in that study the dielectric permittivity by using Eq.…”

“…ceramics under various mechanical and electrical loading conditions [13,14]. However, there has been no systematic study on the influence of an applied stress on their dielectric properties.…”