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Abstract：
The piezoelectric ceramics of (K0.5Na0.5)NbO3+xMnCO3 (KNN+xMn) were prepared by the conventional solid-state method, and the effect of Mn doping on the sintering characteristics, microstructure and electrical properties of the ceramics was investigated. The results show that proper Mn doping promotes sintering performance, induces lattice to change from orthorhombic to tetragonal and improves electrical properties of KNN ceramics. When the content of Mn is 2 mol%, the relative density of KNN ceramics is 93.2%, the phase structure is more close to tetragonal and the best electric properties are obtained, such as Εr is 526, tanδ is 2.3%, d33 is 207 pC/N, kp is 45% and Qm is 181. © 2020, National Institute of Optoelectronics. All rights reserved.
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Optoelectronics and Advanced Materials, Rapid Communications
ISSN： 1842-6573
Year： 2020
Issue： 9-10
Volume： 14
Page： 466-470
0 . 5 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：169
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WoS CC Cited Count： 0
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ESI Highly Cited Papers on the List： 0 Unfold All
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30 Days PV： 14
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