无机材料学报2000，Vol.15Issue(2)：293-298,6.
锰掺杂对硬性 PZT材料压电性能的影响
Effects of Manganese Addition on Piezoelectric Properties of “Hard” Lead Zirconate Titanate
贺连星 1李承恩1
作者信息
- 1. 中国科学院上海硅酸盐研究所，上海 200050
- 折叠
摘要
Abstract
The effects of manganese addition on the microstructure and piezoelectric properties of PZT were studied. The valence states of manganese were also measured by ESR. It shows that manganese coexists mainly in Mn2+ and Mn3+ in PZT ceramics. The solubility limit of MnO in PZT ceramics is about 1.5mol%. Mn ion is preferentially incorporated in the lattice Pb site in Mn2+ or Mn3+ acted as donor when the concentration of Mn ion is below 0.5mol%, which will improve the piezoelectric properties. In the concentration region of 0.5-1.5mol%, some Mn ion will be incorporated in the lattice of (Ti , Zr) site in Mn3+ or Mn+2 acted as acceptor, and correspondingly the Mn-doped PZT ceramics exhibit properties of both “soft” and “hard” piezoelectrics simultaneously. When the concentration of Mn ion is larger than 1.5mol%, it will accumulate at the grain boundaries and give rise to the decrease of piezoelectric properties of PZT ceramics. Small amount of Fe may decrease the solubility limit of Mn ion in PZT ceramics and it may also prevent the oxidation of Mn2+ and Mn3+.关键词
锰掺杂/PZT/压电性能Key words
manganese doping/PZT/piezoelectric properties分类
信息技术与安全科学引用本文复制引用
贺连星,李承恩..锰掺杂对硬性 PZT材料压电性能的影响[J].无机材料学报,2000,15(2):293-298,6.
