Title :
Piezoelectric properties of 0.99[(NaxK1−x)Nb0.955O3-0.045LiSbO3]-0.01CaTiO3 lead-free ceramics
Author :
Huang, X.L. ; Xiao, D.Q. ; Zhu, J.G. ; Zhang, B. ; Wu, W.J. ; Liang, W.F.
Author_Institution :
Dept. of Mater. Sci., Sichuan Univ., Chengdu, China
Abstract :
0.99[(NaxK1-x)Nb0.955O3-0.045LiSbO3]-0.01CaTiO3 (NKNLS-CT) lead-free piezoelectric ceramics have been prepared by the conventional mixed oxide method. The effect of the K/Na ratio on the electrical properties of NKNLS-CT ceramics was investigated. When x = 0.52, the ceramics possess optimum properties: piezoelectric constant d33=266 pC/N, planar electromechanical coupling factors kp=48.7 %. These results show that the NKNLS-CT ceramics may be regarded as the promising lead-free piezoelectric materials.
Keywords :
calcium compounds; electrical conductivity; lithium compounds; piezoceramics; piezoelectricity; potassium compounds; sodium compounds; [(NaxK1-x)Nb0.955O3-LiSbO3]-CaTiO3; conventional mixed oxide method; electrical properties; lead-free piezoelectric ceramics; lead-free piezoelectric materials; piezoelectric constant; piezoelectric properties; planar electromechanical coupling factors; Ceramics; Dielectric constant; Environmentally friendly manufacturing techniques; Lead; Piezoelectric devices; Piezoelectric polarization; Raw materials; Temperature dependence; Temperature distribution; X-ray scattering; (K0.5Na0.5)NbO3; Lead-free piezoelectric ceramics; ferroelectric properties; piezoelectric properties;
Conference_Titel :
Applications of Ferroelectrics, 2009. ISAF 2009. 18th IEEE International Symposium on the
Conference_Location :
Xian
Print_ISBN :
978-1-4244-4970-5
Electronic_ISBN :
1099-4734
DOI :
10.1109/ISAF.2009.5307590
