Effects of NaNbO3-Co2O3 Co-additive on the Properties of PZN-PZT Ceramics

武汉理工大学学报-材料科学版(英文版), 2007, 22(4): 722-724.

^1, , ^2, , ^3,

1.College of Material Science and Engineering, South China University of Technology, Guangzhou,510641, China;Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan,430074, China

2.College of Material Science and Engineering, South China University of Technology, Guangzhou,510641, China

3.Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan,430074, China

Effects of NaNbO3-Co2O3 Co-additive on the Properties of PZN-PZT Ceramics

DENG Yihua ^1, , ZHOU Dongxiang ^2, , ZHUANG Zhiqiang ^3,

2.College of Material Science and Engineering, South China University of Technology, Guangzhou,510641, China

3.Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan,430074, China

Keywords： PZN-PZT

NaNbO3-Co2O3 co-added PZN-PZT (PZCNNT) ceramics were prepared using conventional solid state reaction. The piezoelectric and dielectric properties were measured. The experimental results show that the addition of 0.3mo1% Co2O3 leads to low dielectric loss (tg δ) in PZCNNT ceramics and the proper addition of NaNbO3 not only improves piezoelectric properties but also decreases intensively dielectric loss and mechanical loss. The optimal ceramic having d33=310 pC/N, kp=0.59, εr=985, tg δ=0.0034, Qm=1380 was obtained.

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Effects of NaNbO3-Co2O3 Co-additive on the Properties of PZN-PZT Ceramics

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