CuO added Pb0.92Sr0.06Ba0.02(Mg1/3Nb2/3)0.25(Ti0.53Zr0.47)0.75O3 ceramics sintered with Ag electrodes at 900 ℃ for multilayer piezoelectric actuator

• 来源期刊: 中国物理B（英文版）
• 关键词: piezoelectric ceramics low-temperature co-fired ceramic multilayer piezoelectric actuators
• 年，卷（期）: 2017,（3）
• 页码范围: 539-544
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/26/3/037702

摘要

CuO added Pb0.92Sr0.06Ba0.02(Mgl/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 ℃.CuO addition not only reduced the sintering temperature significantly from 1260 ℃ to 900 ℃ but also improved the ceramic density to 7.742 g/cm3.The 0.7 wt.％ CuO added ceramic sintered at 900 ℃ shows the remnant polarization (Pr) of 40 μC/cm2,0.28％ strain at 40 kV/cm,and the piezoelectric coefficient (d33) 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 ℃ to prepare a high-quality multilayer piezoelectric actuator with a d33 of over 450 pC/N per ceramic layer.