Dielectric properties of 0.85Pb(Zn1/3Nb2/3)O3-0.15BaTiO3-MgF2•SrF2 ceramics

被引：0
|
作者：
Fang, XY [1 ]
Luo, JJ [1 ]
Cheng, XM [1 ]
Wu, MT [1 ]
Yao, X [1 ]
机构：
[1] Xian Jiao Tong Univ, Dept Phys, Xian 710049, Peoples R China
来源：
FERROELECTRICS LETTERS SECTION | 1998年 / 24卷 / 3-4期
关键词：
ferroelectrics; dielectric materials; capacitor;
D O I：
暂无
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In order to put the Lead zinc niobate ceramics in practical use for law-temperature sintering multilayer capacitor (MLC), we have managed to reduce the sinter temperature of 0.85PZN-0.15BaTi(3) ceramics by adding small amount of MgF2.SrF2. The results show that the sintering temperature can be reduced from 1100 degrees C to 900-950 degrees C, and meanwhile the dielectric constant versus temperature shows two peaks in the temperature range of -70 degrees C to 100 degrees C, near to the X7R character of capacitor. Frequency dispersion and dielectric loss are reduced down dramatically at -70 degrees C. These phenomena are different from that of typical relaxation ferroelectricity. The unusual dielectric behaviors could be clarified with the idea of superparaeletric state.
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页码：69 / 72
页数：4
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