Dielectric and piezoelectric properties of (Li0.04 (Na0.54+xK0.46)0.96(Nb0.81Ta0.15Sb0.04) O3 ceramics

Author

Noh, Jung-rae ; Lee, Kab-soo ; Yoo, Juhyun

Author_Institution

Dept. of Electr. Eng., Semyung Univ., Jechon, South Korea

fYear

2012

fDate

9-13 July 2012

Firstpage

1

Lastpage

2

Abstract

In this study, [Li_0.04(Na_0.54+xK_0.46)_0.96](Nb_0.81Ta_0.15 Sb_0.04)O₃ ceramics are prepared by the conventional solid-state solution processes. All the samples have high density, ranging from 4.72 to 4.77(g/cm³). The dielectric and piezoelectric properties were enhanced due to Na excess. As the result, excellent properties of density = 4.73(g/cm³), k_p = 0.46, and d₃₃ = 279(pC/N) were obtained in the composition with x = 0.005.

Keywords

lithium compounds; permittivity; piezoceramics; potassium compounds; sodium compounds; Li_0.04(Na_0.54+xK_0.46)_0.96(Nb_0.81Ta_0.15Sb_0.04)O₃; conventional solid-state solution processes; dielectric properties; piezoelectric ceramics; piezoelectric properties; Ceramics; Couplings; Dielectric constant; Lead; Powders; Q factor; NKN; Na excess; lead-free;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics held jointly with 2012 European Conference on the Applications of Polar Dielectrics and 2012 International Symp Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (ISAF/ECAPD/PFM), 2012 Intl Symp

Conference_Location

Aveiro

Print_ISBN

978-1-4673-2668-1

Type

conf

DOI

10.1109/ISAF.2012.6297802

Filename

6297802