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CuO added Pb0.92Sr0.06Ba0.02(Mg1/3Nb2/3)0.25(Ti0.53Zr0.47)0.75O3 ceramics were studied to prepare high-quality multilayer piezoelectric actuators with pure Ag electrodes at 900°C. CuO addition not only reduced the sintering temperature significantly from 1260°C to… Click to show full abstract
CuO added Pb0.92Sr0.06Ba0.02(Mg1/3Nb2/3)0.25(Ti0.53Zr0.47)0.75O3 ceramics were studied to prepare high-quality multilayer piezoelectric actuators with pure Ag electrodes at 900°C. CuO addition not only reduced the sintering temperature significantly from 1260°C to 900 °C but also improved the ceramic density to 7.742 g/cm3. The 0.7 wt.% CuO added ceramic sintered at 900 °C shows the remnant polarization (P r) of 40 µC/cm2, 0.28% strain at 40 kV/cm, and the piezoelectric coefficient (d 33) of 630 pC/N. This ceramic shows a strong relaxor characteristic with a Curie temperature of 200 °C. Furthermore, the 0.7 wt.% CuO added ceramic and pure Ag electrodes were co-fired at 900 °C to prepare a high-quality multilayer piezoelectric actuator with a d 33 of over 450 pC/N per ceramic layer.
Journal Title: Chinese Physics B
Year Published: 2017
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