Abstract
Domains exist in ferroelectric ceramics. External loads, such as electric field and stress, can cause domain switching. Domain switching always results in nonlinear ferroelectricity and ferroelasticity of ferroelectric ceramics. In this investigation, nonlinear electric-mechanical behavior related to the ferroelctric and ferroelastic domain switching is experimentally and theoretically studied. The domain orientation and its evolution are determined by the joint action of the domain switching driving force and the dissipation during domain switching. 90° and 180° domain switchings play different roles in ferroelectricity and ferroelasticity and have different switching dissipations associated with them. A nonlinear electromechanical coupling finite element model based on the domain switching theory is proposed and used for finite element analysis.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call