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.
Original language | English |
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Pages (from-to) | 385-388 |
Number of pages | 4 |
Journal | Journal of Electroceramics |
Volume | 16 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Jul 2006 |
Keywords
- Cymbal actuator
- Lead-free piezoceramic
- NKLN8
- PZT
ASJC Scopus subject areas
- Ceramics and Composites