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

fYear

2009

fDate

23-27 Aug. 2009

Firstpage

1

Lastpage

3

Abstract

0.99[(Na_xK_1-x)Nb_0.955O₃-0.045LiSbO₃]-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 k_p=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; [(Na_xK_1-x)Nb_0.955O₃-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;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2009. ISAF 2009. 18th IEEE International Symposium on the

Conference_Location

Xian

ISSN

1099-4734

Print_ISBN

978-1-4244-4970-5

Electronic_ISBN

1099-4734

Type

conf

DOI

10.1109/ISAF.2009.5307590

Filename

5307590