Abstract
A mixture model is proposed to model domain switching in polycrystalline ferroelectric ceramics. Each grain is modeled as a body of mixture consisting of distinct types of domains which are characterized by their mass fractions as internal variables. In this model, domain switching corresponds to changes of mass fractions of the corresponding domains. A thermodynamics-based criterion is proposed to govern domain switching in quasi-static processes. With the present model, one can make grain-level calculations of internal stress and electric fields to which microcracking, the primary cause of the electric fatigue, is attributed. The explicit solution to an idealized 1D polycrystalline ferroelectric system is presented in order to explore the implications of this model.© (1996) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Sign-in/Register to access full text options 
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 callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
