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Defect engineering of BCZT-based piezoelectric ceramics with high piezoelectric properties
December 2021 • Xinjian Wang, Yu Huan, Yixuan Zhu, Peng Zhang, Wenlong Yang, Peng Li, Tao Wei, Longtu Li, Xiaohui Wang
Abstract The intrinsic conduction mechanism and optimal sintering atmosphere of (Ba 0.85 Ca 0.15 )(Zr 0.1 Ti 0.9 )O 3 (BCZT) ceramics were regulated by Mn-doping element in this work. By Hall and impedance analysis, the undoped BCZT ceramics exhibit a typical n-type conduction mechanism, and the electron concentration decreases with the increasing oxygen partial pressure. Therefore, the undoped ceramics exhibit best electrical properties (piezoelectrical constant d 33 = 585 pC·N −1 , electro-mechanical coupling fa…
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