Dielectric properties anomaly of (1-x)Pb(Ni1/3Nb2/3)O3-xPbTiO3 ceramics near the morphotropic phase boundary

被引：28
|
作者：
Li, ZR [1 ]
Zhang, LY [1 ]
Yao, X [1 ]
机构：
[1] Xian Jiao Tong Univ, Elect Mat Res Lab, Xian 710049, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH | 2001年 / 16卷 / 03期
关键词：
D O I：
10.1557/JMR.2001.0100
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Dielectric properties and the phase compositions of (1-x)Pb(Ni1/3Nb2/3)O-3-xPbTiO(3) ceramics were investigated. A morphotropic phase boundary (MPB) in the system between pseudocubic and tetragonal phase regions has been identified to lie in the composition range x = 0.34-0.38 by means of x-ray diffraction and dielectric measurements. The samples of composition lying near the MPB have good dielectric properties, but at the same time, exhibit two dielectric peaks. The possible reasons fbr the occurrence of dielectric bipeaks are discussed. One dielectric peak is phase transition peak, and the other peak lying in 130-150 degreesC temperature range is suggested to result from structure defects in the ceramics.
引用
收藏
页码：834 / 836
页数：3
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