Abstract
On the basis of X-ray diffraction and electrophysical data for stoichiometric and nonstoichiometric sodium niobate, it is concluded that a mechanism responsible for the infinite ratio of the electromechanical coupling factors for the thickness and plane modes may be related to the composite-like structure of the material. It is shown that such a structure may result from the presence of ordered extended voids (arising at the joints between perfect structure blocks), which behave as microcracks. Stresses generated at the joints may modify the domain structure and lead to the anisotropic distribution of polarized clusters in the ferroelectric phase. This also may enhance the piezoelectric anisotropy.
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.
