Abstract
In the study, B-site non-stoichiometric (excess) lead-free (K0.458Na0.542)0.96Li0.04Nb0.85Ta0.15Sb x O3 (KNLNS x T) ceramics were prepared by conventional mixed oxide method. The results indicate that excess Sb in an amount of ≤0. 5 mol% can diffuse into the lattice of the KNLNT ceramics and form the pure perovskite phase. The Sb excess ceramics show decreased ferroelectric properties due to the partial substitution of Sb3+ for B-site ions. The deviation of Sb from chemical stoichiometry can distinctly influence electrical properties of KNLNT ceramics. Enhanced piezoelectric activity is observed in the ceramics with a 0.5 mol% excess of Sb. The work has shown the necessity of adequately controlling B-site non-stoichiometry of KNN-based lead-free piezoelectric ceramics in obtaining the desired electrical properties.
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 callMore From: Journal of Materials Science: Materials in Electronics
Disclaimer: 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.
