Nonlinear Shear Response in (K,Na)NbO3-Based Lead-Free Piezoelectric Ceramics

Abstract:

Article Preview

The piezoelectric shear response of 94.0(Ka0.5, Na0.5)NbO3 (KNN) + 5.0LiNbO3 (LN) + 0.5SrTiO3 (ST) + 0.5BiFeO3 (BF) ceramics was investigated by Laser Doppler Vibrometry (LDV) and resonance-antiresonance method. From resonance-antiresonance method, the piezoelectric d15 constant was obtained to be 273 pC/N. The shear strain obtained by LDV at the frequency of 150kHz showed strong nonlinearity. This suggested that the domain contribution to piezoelectric response in shear mode of KNN-LN-ST-BF ceramics existed at the operational frequency for the shear mode divices.

Info:

Periodical:

Edited by:

Shinobu Fujihara and Tadashi Takenaka

Pages:

47-50

DOI:

10.4028/www.scientific.net/KEM.445.47

Citation:

M. Hagiwara et al., "Nonlinear Shear Response in (K,Na)NbO3-Based Lead-Free Piezoelectric Ceramics", Key Engineering Materials, Vol. 445, pp. 47-50, 2010

Online since:

July 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.