Effects of silver incorporation on the dielectric and ferroelectric properties of PMN-PNN-PZT ceramics

被引：6
作者：
Zuo, RZ [1 ]
Li, LT [1 ]
Hu, XB [1 ]
Gui, ZL [1 ]
机构：
[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
来源：
MATERIALS RESEARCH BULLETIN | 2001年 / 36卷 / 12期
基金：
中国国家自然科学基金;
关键词：
ceramics; electronic materials; dielectric properties; electrical properties; ferroelectricity;
D O I：
10.1016/S0025-5408(01)00688-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of silver addition on the sintering behavior, the dielectric, and ferroelectric properties of PMN-PNN-PZT piezoelectric ceramics for multilayer piezoelectric transformers were investigated. A small amount of silver promoted the sintering. but with more silver the density of the samples decreased. The silver incorporation affected the dielectric and ferroelectric properties of the samples. The dielectric constant presented an interesting change, and the dielectric loss increased slightly. The P-E loops indicated that the remnant (P-r) and saturated polarization (P-s) increased due to the silver addition with eventually enhanced ferroelectric properties. The degradation of the dielectric strength possibly restricted the polarizing conditions of multilayer piezoelectric devices. (C) 2001 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：2111 / 2118
页数：8
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