Piezoelectric properties of (K0.44Na0.52Li0.04) (Nb0.86Ta0.10Sb0.04)O3 ceramics

被引：0
作者：
Zhang, Dongsheng [1 ]
机构：
[1] School of Mechanical Engineering, Xi'an Jiaotong University
来源：
Kuei Suan Jen Hsueh Pao/Journal of the Chinese Ceramic Society | 2014年 / 42卷 / 04期
关键词：
Lead-free piezoelectric ceramics; Lithium; tantalum and stibium doped; Normal sintering; Potassium sodium niobate;
D O I：
10.7521/j.issn.0454-5648.2014.04.04
中图分类号：
学科分类号：
摘要：
Lead-free piezoceramic of (K0.44Na0.52Li0.04) (Nb0.86Ta0.10Sb0.04)O3 (KNLNTS) was prepared by a conventional solid-state reaction method. The effect of sintering temperature on the density and electrical properties of ceramic was investigated. The results show that the KNLNTS ceramic sintered at 1050°C has the superior electrical properties, i.e., the maximum relative dielectric constant of 1120, the piezoelectric coefficient of 193 pC/N, the minimum dielectric loss of 2.55%, the maximum mechanical constant of 85 and the density of 4.65 g/cm3, respectively. The saturated hysteresis loops of the KNLNTS sample was obtained. The properties of ceramic decrease and the grain size increases with increasing the sintering temperature due to the alkaline ion volatilization. The Curie temperature decreases from 420°C to 301°C after co-doping Li, Ta and Sb in the KNN ceramics.
引用
收藏
页码：444 / 447
页数：3
相关论文
共 13 条
[1]  
Jiang X., Yi W., Chen C., Et al., J Chin Ceram Soc, 40, 4, pp. 479-484, (2012)
[2]  
Sheng Z., Li J., J Chin Ceram Soc, 38, 3, pp. 510-520, (2010)
[3]  
Yasuyoshi S., Hisaaki T., Toshihiko T., Et al., Lead-free piezoceramics, Natural, 432, pp. 84-86, (2004)
[4]  
Ming B.Q., Wang J.F., Qi P., Et al., Piezoelectric properties of (Li, Sb, Ta) modified (NaK)NbO<sub>3</sub> lead-free ceramics, J Appl Phys, 101, (2007)
[5]  
Matsubara M., Kikuta K., Hirano S., Piezoelectric properties of (K<sub>0.5</sub>Na<sub>0.5</sub>)(Nb<sub>1-x</sub>Ta<sub>x</sub>) O<sub>3</sub>-K<sub>5.4</sub>CuTa<sub>10</sub>O<sub>29</sub> ceramics, J Appl Phys, 97, (2005)
[6]  
(1984)
[7]  
Bomlai P., Wichianrat P., Muensit S., Et al., Effect of calcination conditions and excess alkali carbonate on the phase formation and particle morphology of Na<sub>0.5</sub>K<sub>0.5</sub>NbO<sub>3</sub> Powders, J Am Ceram Soc, 90, 5, pp. 1650-1655, (2007)
[8]  
Matsubara M., Yamaguchi T., Sakamoto W., Et al., Processing and piezoelectric properties of lead-free (K, Na) (Nb, Ta) O<sub>3</sub> ceramics, J Am Ceram Soc, 88, pp. 1190-1196, (2005)
[9]  
Rubio-Marcos F., Ochoa P., Fernandez J.F., Sintering and properties of lead-free(K, Na, Li)(Nb, Ta, Sb)O<sub>3</sub> ceramics, J Eur Ceram Soc, 27, pp. 4125-4129, (2007)
[10]  
Nader M.H., Lead-free piezoelectric ceramics and transducers in potassium sodium Niobate-solid solution system, (2007)
12