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2009 Volume 18 Issue 6
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Wang Da-Wei, Zhang De-Qing, Yuan Jie, Zhao Quan-Liang, Liu Hong-Mei, Wang Zhi-Ying, Cao Mao-Sheng. 2009: Structural and electrical properties of Nd ion modified lead zirconate titanate nanopowders and ceramics, Chinese Physics B, 18(6): 2596-2602.
Citation: Wang Da-Wei, Zhang De-Qing, Yuan Jie, Zhao Quan-Liang, Liu Hong-Mei, Wang Zhi-Ying, Cao Mao-Sheng. 2009: Structural and electrical properties of Nd ion modified lead zirconate titanate nanopowders and ceramics, Chinese Physics B, 18(6): 2596-2602.
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Structural and electrical properties of Nd ion modified lead zirconate titanate nanopowders and ceramics

  • School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China

  • School of Material Science and Engineering, Beijing Institute of Technology, Beijing 100081, China;College of Chemical Engineering, Qiqihar University, Qiqihar 161006, China

  • School of Information Engineering, Central University for Nationality, Beijing 100081, China

  • Available Online: 30/06/2009
  • Fund Project: the National Natural Science Foundation of China(Grant 50742007)%the National High Technology Research and Development Program of China(Grant 2007AA03Z103)%the National Defence Foundation of China(Grant 401050301)%the Key Laboratory Foundation of Sonar Technology of China(Grant 9140C24KF0901)%the Scientific Project of Heilongjiang Province, China(Grant E2007-31)
  • A modified sol-gel method is used for synthesizing Nd ion doped lead zirconate titanate nanopowders Pb1-3x/2NdxZr0.52Ti0.48O3 (PNZT) in an ethylene glycol system with zirconium nitrate as zirconium source. The results show that it is critical to add lead acetate after the reaction of zirconium nitrate with tetrabutyl titanate in the ethylene glycol system for preparing PNZT with an exact fraction of titanium content. It has been observed that the dopant of excess Nd ions can effectively improve the sintered deusification and activity of the PNZT ceramics.Piezoelectric, dielectric and ferroelectric properties of the PNZT ceramics are remarkably enhanced as compared with those of monolithic lead zirconate titanate (PZT). Especially, the supreme values of piezoelectric constant (d33) and dielectric constant (ε) for the PNZT are both about two times that of the monolithic PZT and moreover, the remnant polarization (Pr) also increases by 30%. According to the analysis of the structures and properties, we attribute the improvement in electrical properties to the lead vacancies caused by the doping of Nd ions.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Structural and electrical properties of Nd ion modified lead zirconate titanate nanopowders and ceramics

  • Available Online: 30/06/2009

Abstract: A modified sol-gel method is used for synthesizing Nd ion doped lead zirconate titanate nanopowders Pb1-3x/2NdxZr0.52Ti0.48O3 (PNZT) in an ethylene glycol system with zirconium nitrate as zirconium source. The results show that it is critical to add lead acetate after the reaction of zirconium nitrate with tetrabutyl titanate in the ethylene glycol system for preparing PNZT with an exact fraction of titanium content. It has been observed that the dopant of excess Nd ions can effectively improve the sintered deusification and activity of the PNZT ceramics.Piezoelectric, dielectric and ferroelectric properties of the PNZT ceramics are remarkably enhanced as compared with those of monolithic lead zirconate titanate (PZT). Especially, the supreme values of piezoelectric constant (d33) and dielectric constant (ε) for the PNZT are both about two times that of the monolithic PZT and moreover, the remnant polarization (Pr) also increases by 30%. According to the analysis of the structures and properties, we attribute the improvement in electrical properties to the lead vacancies caused by the doping of Nd ions.

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