Low- and high-field electromechanical responses of relaxor-based multicomponent ceramics for application in multiregime actuators

Abstract

The electromechanical responses of multicomponent solid solutions Pb0.95Ba0.05(Mg1∕3Nb2∕3)0.471(Zn1∕3Nb2∕3)0.102(Ni1∕3Nb2∕3)0.152Ti0.275O3 in low and high electric fields were studied. In both cases, significant electromechanical responses are observed. In particular, the maximum values of the large-signal piezoelectric coefficient d33 reach 1600m/V at very low values of the electric field (≈5kV/cm). The observed features of the electromechanical responses of the studied ceramics are advantages in terms of their possible application in actuators.

Keywords

• relaxor ferroelectrics
• morphotropic phase boundary
• electromechanical response
• actuators