caa a22 4500 445826932 CHVBK 20180317145302.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s10854-011-0322-0 doi (NATIONALLICENCE)springer-10.1007/s10854-011-0322-0 Microstructure, phase transition and electrical properties of LiSbO3-doped (K0.49Na0.51)NbO3 lead-free piezoelectric ceramics [Elektronische Daten] [Yue-Ming Li, Zong-Yang Shen, Liang Jiang, Fen Wu, Zhu-Mei Wang, Yan Hong, Run-Hua Liao] Microstructure, phase transition and electrical properties of (1−x)K0.49Na0.51NbO3−xLiSbO3 (x=0-0.08) lead-free piezoceramics prepared by the conventional solid-state sintering method were investigated with an emphasis on the effects of LiSbO3 doping amount x. SEM results showed that the ceramic became denser by increasing LiSbO3 doping amount x. Being indexed by XRD profiles, the ceramics changed from an orthorhombic perovskite structure to a tetragonal one across a composition region of 0.04≤x≤0.05. The sample of LiSbO3 doping amount x=0.05 in tetragonal side of the region had the maximum values of piezoelectric constant (d 33=256 pC/N) and planar electromechanical coupling coefficient (k p=42.7%). Meanwhile, this ceramic sample showed other good properties such as ε r=1,463, tgδ=0.036, Q m=48, P r=19.8 μC/cm2, E c=1.9kV/mm and T c=340°C, which indicated it was a promising lead-free piezoelectric material for ultrasonic transducer applications. Springer Science+Business Media, LLC, 2011 Li Yue-Ming School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut Shen Zong-Yang School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut Jiang Liang School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut Wu Fen School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut Wang Zhu-Mei School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut Hong Yan School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut Liao Run-Hua School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/9(2011-09-01), 1409-1414 0957-4522 22:9<1409 2011 22 10854 https://doi.org/10.1007/s10854-011-0322-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10854-011-0322-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Yue-Ming School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut NATIONALLICENCE 700 1- Shen Zong-Yang School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut NATIONALLICENCE 700 1- Jiang Liang School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut NATIONALLICENCE 700 1- Wu Fen School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut NATIONALLICENCE 700 1- Wang Zhu-Mei School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut NATIONALLICENCE 700 1- Hong Yan School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut NATIONALLICENCE 700 1- Liao Run-Hua School of Materials Science and Engineering, Jiangxi Key Laboratory of Advanced Ceramic Materials, Jingdezhen Ceramic Institute, 333403, Jingdezhen, China aut NATIONALLICENCE 773 0- Journal of Materials Science: Materials in Electronics Springer US; http://www.springer-ny.com 22/9(2011-09-01), 1409-1414 0957-4522 22:9<1409 2011 22 10854 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer