无机材料学报 ›› 2010, Vol. 25 ›› Issue (12): 1242-1246.DOI: 10.3724/SP.J.1077.2010.01242 CSTR: 32189.14.SP.J.1077.2010.01242

• 研究论文 • 上一篇    下一篇

MnO2对BiFeO3掺杂PZT-PFW-PMN陶瓷的电性能与温度特性研究

晁小练, 杨祖培, 安伟伟   

  1. (陕西师范大学 化学与材料科学学院, 陕西省大分子重点实验室, 西安 710062)
  • 收稿日期:2010-03-07 修回日期:2010-05-24 出版日期:2010-12-20 网络出版日期:2010-11-24
  • 基金资助:

    陕西师范大学优秀博士论文基金(X2007YB07)

Piezoelectric Characteristics of Low-temperature Sintered BiFeO3-doped PZT-PFW-PMN Ceramics with the Addition of MnO2

CHAO Xiao-Lian, YANG Zu-Pei, AN Wei-Wei   

  1. (Key Laboratory for Macromolecular Science of Shaanxi Province, School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an 710062, China)
  • Received:2010-03-07 Revised:2010-05-24 Published:2010-12-20 Online:2010-11-24
  • Supported by:

    Doctoral Foundation of Shaanxi Normal University (X2007YB07)

摘要: 采用传统工艺制备了PbZrO3-PbTiO3-Pb(Fe2/3W1/3)O3-Pb(Mn1/3Nb2/3)O3-BiFeO3(简称PZT-PFW-PMN-BF)四元系压电陶瓷. 研究了MnO2掺杂对PZT-PFW-PMN-BF陶瓷的显微结构、烧结温度、电性能与温度稳定性的影响. 结果表明, 当MnO2的掺杂量为0.10 wt%时, 陶瓷的烧结温度从1020℃降到了950℃, 并得到了较好的综合性能和温度特性, 分别为d33=394 pC/N, Kp =0.54, Qm=1180、εr=1480, △fr/fr25℃=1.68 %和△Kp/Kp25℃=-1.06 %.

关键词: 压电陶瓷, 低温烧结, 电性能

Abstract: The effects of MnO2 addition on the sintering temperature, microstructure, dielectric, piezoelectric properties and the temperature stability of PbZrO3-PbTiO3-Pb(Fe2/3W1/3)O3-Pb(Mn1/3Nb2/3)O3-BiFeO3 (PZT-PFW- PMN-BF) ceramics were investigated. The 0.10 wt% MnO2-added PZT-PFW-PMN ceramics sintered at 950℃ exhibited the favorable piezoelectric and dielectric properties, which were listed as follows: ρ=7.78 g/cm3, d33=394 pC/N, Kp=0.54, Qm=1180, εr=1480, △fr/fr25℃=1.68 % and △Kp/Kp25℃=-1.06 %, respectively.

Key words: piezoelectric ceramics, low sintering temperature, electrical properties

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