Enhanced piezoelectric properties of Aurivillius-type sodium lanthanum bismuth titanate (Na0.5La0.5Bi4Ti4O15) by B-site manganese modification》.pdf

Available online at CERAMICS INTERNATIONAL Ceramics International 41 (2015) 5492–5497 /locate/ceramint Enhanced piezoelectric properties of Aurivillius-type sodium lanthanum bismuth titanate (Na La Bi Ti O ) by B-site manganese modification 0.5 0.5 4 4 15 n Hou-Zheng Wu, Chun-Ming Wang , Zhen-Lei Guo, Tian-Long Zhao, Yi-Ming Wang School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, Peoples Republic of China Received 18 November 2014; received in revised form 15 December 2014; accepted 20 December 2014 Available online 29 December 2014 Abstract The Aurivillius-type bismuth layer-structured ferroelectrics (BLSFs) sodium lanthanum bismuth titanate (Na La Bi Ti O , NLBT) 0.5 0.5 4 4 15 polycrystalline ceramics with 0.0–0.4 wt% MnO2 were synthesized using conventional solid-state processing. Phase analyses were performed by X-ray powder diffraction (XRPD), and the microstructural morphology was assessed by scanning electron microscopy (SEM). The dielectric and piezoelectric properties of the manganese-modified NLBT cerami