| CuO added Pb_(0.92)Sr_(0.06)Ba_(0.02)(Mg_(1/3)Nb_(2/3))_(0.25)(Ti_(0.53)Zr_(0.47))_(0.75)O_3 ceramics sintered with Ag electrodes at 900℃ for multilayer piezoelectric actuator |
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| 作者姓名： | 徐玉青 汪尧进 王一平 杨颖 袁国亮 |
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| 作者单位： | 1.School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;2.Precision Driving Laboratory, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| 基金项目： | Project supported by the National Natural Science Foundation of China (Grant Nos. 51472118, 51602156, 52177072, and 11274174) and the Fundamental Research Funds for the Central Universities, China (Grant Nos. 30916011104 and 30916011208). |
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| 摘 要： | CuO added Pb_(0.92)Sr_(0.06)Ba_(0.02)(Mg_(1/3)Nb_(2/3))_(0.25)(Ti_(0.53)Zr_(0.47))_(0.75)O_3 ceramics were studied to prepare high-quality multilayer piezoelectric actuators with pure Ag electrodes at 900℃. Cu O addition not only reduced the sintering temperature significantly from 1260℃ to 900℃ but also improved the ceramic density to 7.742 g/cm~3. The 0.7 wt.% Cu O added ceramic sintered at 900℃ shows the remnant polarization(P_r) of 40 μC/cm~2, 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℃. 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 d_(33) of over 450 pC/N per ceramic layer.
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| 收稿时间： | 2016-11-10 |
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