Abstract
The Li, Ta, and Sb modified (Na,K)NbO3 ceramics were reported to exhibit excellent piezoelectric properties typically in the vicinity of orthorhombic (O) and tetragonal (T) phase boundaries. Ex- and in-situ synchrotron x-ray diffraction measurements have provided a direct evidence of the electric-field induced phase instability owing to reversible phase transition between monoclinic (Mc) phase and T phase. A low-symmetry Mc phase was irreversibly produced from the initial O phase after the electric field was applied. Experimental results suggested that the Mc-T phase coexistence and reversible Mc-T phase transition (phase instability) may be responsible for enhanced piezoelectric activity in these compositions.
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.
