Abstract
Lead free (1− x)(Na 0.5K 0.5)NbO 3– xBiAlO 3 (NKN–BA) piezoelectric ceramics have been prepared by a solid-state reaction method. The phase transitional behavior and various electrical properties were investigated. A pure perovskite structure can be achieved when the content of BA is less than 5%. A morphotropic phase boundary between orthorhombic and tetragonal ferroelectric phases has been identified in the composition range of 0.005 ≤ x ≤ 0.01. The enhanced ferroelectric and piezoelectric properties of a piezoelectric constant d 33 of 202 pC/N, a planar electromechanical coefficient k p of 46%, a remanent polarization P r of 23.6 μC/cm 2 and a Curie temperature of 372 °C appear in the composition with x = 0.01. These results indicate that the materials studied have potential as a candidate of lead free piezoelectric ceramics.
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.
