Abstract
The effect of ferroelectric YMnO 3 addition on the piezoelectric characteristics of Pb(Zr 0.52Ti 0.48)O 3 were investigated. The high-power piezoelectric characteristics, such as the mechanical quality factor ( Q m) and vibration velocity ( v 0 ) , were improved significantly. For the 2.0 mol% YMnO 3-doped sample, Q m was 730 and v 0 was 0.61 m/s at a 20 °C temperature rise. In addition to the improved high-power characteristics, the samples maintained a high Curie temperature ( T c) at around 370 °C.
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