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Journal of Electroceramics

, Volume 16, Issue 4, pp 385–388 | Cite as

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

  • X. X. Wang
  • S. W. OrEmail author
  • K. H. Lam
  • H. L. W. Chan
  • P. K. Choy
  • P. C. K. Liu
Section 1: Electroceramics

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 ∼430C. 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.

Keywords

Cymbal actuator Lead-free piezoceramic NKLN8 PZT 

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Copyright information

© Springer Science + Business Media, LLC 2006

Authors and Affiliations

  • X. X. Wang
    • 1
  • S. W. Or
    • 1
    Email author
  • K. H. Lam
    • 1
  • H. L. W. Chan
    • 1
  • P. K. Choy
    • 2
  • P. C. K. Liu
    • 2
  1. 1.Department of Applied PhysicsThe Hong Kong Polytechnic UniversityKowloonHong Kong
  2. 2.ASM Assembly Automation Ltd.Kwai ChungHong Kong

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