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无机材料学报

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铁掺杂0.2PZN-0.8PZT铁电陶瓷Raman散射研究

路朋献1,2, 朱满康1, 侯育冬1, 宋雪梅1, 汪浩1, 严辉1   

  1. 1. 北京工业大学材料学院, 北京 100022;
    2. 河南工业大学材料学院, 郑州 450052
  • 收稿日期:2005-05-13 修回日期:2005-06-30 出版日期:2006-05-20 网络出版日期:2006-05-20

Raman Scattering Studies on Fe2O3-modified 0.2PZN-0.8PZT Piezoceramics

LU Peng-Xian1,2, ZHU Man-Kang1, HOU Yu-Dong1, SONG Xue-Mei1, WANG Hao1, YAN Hui1   

  1. 1. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China;
    2. School of Materials, Henan University of Technology, Zhengzhou 450052, China
  • Received:2005-05-13 Revised:2005-06-30 Published:2006-05-20 Online:2006-05-20

PDF (PC)

2036

被引次数

7

摘要： 采用Raman散射方法研究了铁掺杂Pb(Zn1/3Nb2/3)0.2(Zr0.5Ti0.5)0.8O3(0.2PZN-0.8PZT)铁电陶瓷中三方-四方共存现象. 通过分析四方相E(3TO)和A1(3TO)模式与三方相R l模式之间的相对强度, 以及四方相E(3LO)和A1(3LO)模式与三方相R h模式之间的相对强度, 确定了铁掺杂对0.2PZN-0.8PZT陶瓷中三方-四方共存结构的影响, 并得到了XRD相分析的验证. 因此, 通过分解Raman散射中三方-四方振动模式, 可以表征掺杂对PZT基陶瓷中三方-四方共存现象的变化趋势.

关键词: Raman分析, PZT相变, 铁掺杂, XRD分析

Abstract: Raman scattering spectroscopy is widely used to investigate the phase transition of ferroelectrics, including the ferroelectric-paraelectric transition. In the present paper, the phase coexistence of rhombohedral and tetragonal phases caused by Fe2O3 doping in Pb(Zn1/3Nb2/3)0.2(Zr0.5Ti0.5)0.8O3(0.2PZN-0.8PZT) ceramics was investigated by Raman scattering spectroscopy in detail. On the basis of the Raman scattering analysis on the tetragonal E(3TO) and A1(3TO) modes and the rhombohedral R l mode, or on the tetragonal E(3LO) and A1(3LO) modes and the rhombohedral R h mode, the tendency of phase transition induced by Fe2O3 doping was evaluated, which has been affirmed by XRD results. This indicates
that Raman scattering analysis is an effective way to investigate the doping effect on the phase coexistence in PZT based ceramics.

Key words: Raman analysis, PZT phase transition, Fe2O3 doping, XRD analysis

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