Structure and electrical properties of PZT–PMS–PZN piezoelectric ceramics |
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| Affiliation: | 1. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China;2. School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China;3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China;4. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China;5. College of Power Engineering, Naval University of Engineering, Wuhan 430033, China |
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| Abstract: | The quaternary piezoelectric ceramics of Pb(Zr0.52Ti0.48)O3–Pb(Mn1/3Sb2/3)O3–Pb(Zn1/3Nb2/3)O3 (PZT–PMS–PZN) with different PZN contents were synthesized by molten salt synthesis (MSS). The influence of PZN content on phase structure, microstructure, dielectric and piezoelectric properties was investigated in detail. The results of X-ray diffraction (XRD) show that the phase structure of ceramics transforms from rhombohedral phase to tetragonal phase with the increasing of PZN content. The morphotropic phase boundary (MPB) of composition is located in the range of PZN content from 2 to 7 mol%. The grain size of the ceramics gradually decreases with the increasing of PZN content. Dielectric and piezoelectric properties of ceramics are significantly influenced by the PZN content. Ceramics sintered at 1150 °C with 5 mol% PZN achieve excellent properties, which are as follows: Qm = 1381, Kp = 0.64, d33 = 369pC/N, tan δ = 0.0044 and Tc = 275 °C. The PZT–PMS–PZN system is a promising material for high power piezoelectric transformers application. |
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