Cymbal actuator fabricated using (Na0.46K0.46Li0.08)NbO3 lead-free piezoceramic

Wang, X.X., Or, S.W., Lam, K.H. , Chan, H.L.W., Choy, P.K. and Liu, P.C.K. (2006) Cymbal actuator fabricated using (Na0.46K0.46Li0.08)NbO3 lead-free piezoceramic. Journal of Electroceramics, 16(4), pp. 385-388. (doi: 10.1007/s10832-006-9884-2)

Abstract

(Na0.46K0.46Li0.08)NbO3 (NKLN8) lead-free piezoceramic was prepared by a mixed oxide route. The ceramic showed a single phase of orthorhombic perovskite structure at room temperature and a high Curie temperature of ∼430∘C. A cymbal actuator using NKLN8 as the actuation element and titanium alloy as the endcaps was fabricated and characterized. A similar actuator with traditional Pb(Zr,Ti)O3 (PZT) piezoceramic was also constructed for comparison. The results showed that the NKLN8 actuator has a higher fundamental resonance frequency of 107.1 kHz and a faster response of 9.3 μs with a comparable effective coupling coefficient of 0.15 at the expense of a lower strain coefficient of 1.9 nm/V. The observed actuator performance was discussed in relation to the ceramic properties.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Lam, Dr Koko
• Authors: Wang, X.X., Or, S.W., Lam, K.H., Chan, H.L.W., Choy, P.K., and Liu, P.C.K.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: Journal of Electroceramics
• Publisher: Springer
• ISSN: 1385-3449
• ISSN (Online): 1573-8663