Abstract
0.91K0.47Na0.47Li0.06NbO3-0.09NaSbO3 lead-free piezoelectric ceramics were prepared at 1000°C using a sintering aid comprising of Cu and Ba in a molar ratio of 71.5/28.5. A dense structure with a high density of 4.43 g/cm3 was obtained for the ceramic added with 2.5 wt% of the sintering aid. Probably due to the smaller grains and doping of Cu2+, the piezoelectric coefficient and dielectric loss were reduced to 120 pC/N and 1.0%, respectively. The ceramics were then fabricated into vibratory gyro sensors of dimensions 0.6 mm × 0.6 mm × 4 mm; and good sensitivity (~0.7 mV/dps) was obtained in the range of -360 to 360 dps.
Original language | English |
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Pages (from-to) | E149-E155 |
Journal | International Journal of Applied Ceramic Technology |
Volume | 12 |
Issue number | S1 |
DOIs | |
Publication status | Published - 1 Jan 2015 |
ASJC Scopus subject areas
- Ceramics and Composites
- Condensed Matter Physics
- Marketing
- Materials Chemistry