| Piezoelectric and dielectric properties of Cr-doped PSN-PZN-PZT quaternary piezoelectric ceramics |
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| 作者姓名： | SUNQingchi WANGLifeng LIUPing NIEQiang |
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| 作者单位： | [1]SchoolofMaterialsScienceandEngineering,TianjinUniversity,Tianjin300072,China [2]SchoolofChemicalEngineeringandTechnology,TianjinUniversity,Tianjin300072,China |
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| 摘 要： | PSN-PZN-PZT x wt.%Cr2O3, x=0.0-0.9, were prepared by conventional mixed oxide techniques at sintering temperatures of 1220℃-1300℃ for 2 h. The effect of sintering temperature on the microstructure and the piezoelectric properties was investigated by XRD, SEM, and other conventional measurement. The result indicated that with temperature increasing, the valence of Cr ion from Cr^5 or Cr^6 changes into Cr^3 , and the piezoelectric properties turn hard. With increasing Cr2O3 content, the amount of rhombohedral phases increases and the morphotropic boundary phase is correspondingly shifts to rhombohedral phase. A uniform microstructure and excellent comprehensive properties were obtained at 1240℃ as the amount of Cr2O3 is 0.5 wt.%.
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| 关 键 词： | 压电性质 介电性质 压电陶瓷 三氧化二铬 PSN-PZN-PZT 固态反应过程 烧结温度 |
Piezoelectric and dielectric properties of Cr-doped PSN-PZN-PZT quaternary piezoelectric ceramics |
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| SUNQingchi WANGLifeng LIUPing NIEQiang.Piezoelectric and dielectric properties of Cr-doped PSN-PZN-PZT quaternary piezoelectric ceramics[J].Rare Metals,2005,24(2):185-189. |
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| Authors: | Sun Qingchi Wang Lifeng LIU Ping Nie Qiang |
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| Affiliation: | 1. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | PSN-PZN-PZT + x wt.%Cr2O3, x = 0.0-0.9, were prepared by conventional mixed oxide techniques at sintering temperatures of 1220℃-1300℃ for 2 h. The effect of sintering temperature on the microstructure and the piezoelectric properties was investigated by XRD, SEM, and other conventional measurement. The result indicated that with temperature increasing, the valence of Cr ion from Cr5+ or Cr6+ changes into Cr3+, and the piezoelectric properties turn hard. With increasing Cr2O3 content, the amount of rhombohedral phases increases and the morphotropic boundary phase is correspondingly shifts to rhombohedral phase. A uniform microstructure and excellent comprehensive properties were obtained at 1240C as the amount of Cr2O3 is 0.5 wt.%. |
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| Keywords: | inorganic nonmetallic materials PSN-PZN-PZT conventional solid reaction process Cr2O3 content sintering temperature piezoelectric properties |
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