| Effects of CeO2 doping on the structure and properties of PSN-PZN-PMS-PZT piezoelectric ceramics |
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| 作者姓名： | SUN Qingchi LU Cuimin ZHOU Hua |
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| 作者单位： | Institute of Material Science and Engineering, Ttanjin University, Ttanjin 300072, China |
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| 摘 要： | Quinary system piezoelectric ceramics PSN-PZN-PMS-PZT were prepared by using a two-step method. The effects of CeO2 doping on piezoelectric and dielectric properties of the system were investigated at morphotropic phase boundary （MPB）. The results reveal that the relative dielectric constant ε33^T｜ε0, the Curie temperature To, the piezoelectric constant d33, the mechanical quality factor Qm, and the electromechanical coupling coefficient Kp are changed with the increase of CeO2 content. On the other hand, the effects of CeO2 doping on the dielectric properties of PSN-PZN-PMS-PZT piezoelectric ceramics at high electric field are consistent with the change at weak electric field. The values of dielectric constant and dielectric loss are enhanced with the increasing of electric field.
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| 关 键 词： | 铈 压电陶瓷 电机 结构体系 复合物 |
| 收稿时间： | 2004-04-25 |
Effects of CeO2 doping on the structure and properties of PSN-PZN-PMS-PZT piezoelectric ceramics |
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| SUN Qingchi LU Cuimin ZHOU Hua.Effects of CeO2 doping on the structure and properties of PSN-PZN-PMS-PZT piezoelectric ceramics[J].Rare Metals,2005,24(3):235-239. |
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| Authors: | SUN Qingchi LU Cuimin ZHOU Hua |
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| Abstract: | Quinary system piezoelectric ceramics PSN-PZN-PMS-PZT were prepared by using a two-step method. The effects of CeO2 doping on piezoelectric and dielectric properties of the system were investigated at morphotropic phase boundary (MPB). The results reveal that the relative dielectric constant εT33 / ε0, the Curie temperature Tc, the piezoelectric constant d33, the mechanical quality factor Qm, and the electromechanical coupling coefficient Kp are changed with the increase of CeO2 content. On the other hand, the effects of CeO2 doping on the dielectric properties of PSN-PZN-PMS-PZT piezoelectric ceramics at high electric field are consistent with the change at weak electric field. The values of dielectric constant and dielectric loss are enhanced with the increasing of electric field. |
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| Keywords: | piezoelectric ceramics piezoelectric and dielectric properties CeO2 doping morphotropic phase boundary (MPB) |
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