Quantitative Microanalysis of (1-x)Pb(Mg1/3Nb2/3)O3xxPbTiO3 (PMNT) Ferroelectric Ceramics

被引：1
|
作者：
Samardzija, Zoran [1 ]
机构：
[1] Jozef Stefan Inst, Dept Nanostruct Mat, SI-1000 Ljubljana, Slovenia
来源：
MICROSCOPY AND MICROANALYSIS | 2015年 / 21卷 / 05期
关键词：
PMNT; ferroelectrics; quantitative microanalysis; WDS; compositional heterogeneity; DOMAIN-STRUCTURES; GROWTH;
D O I：
10.1017/S1431927615000276
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Optimized quantitative electron-probe microanalysis was applied for compositional characterization of a ferroelectric ceramic single crystal that was made from the complex perovskite-type solid-solution (1-x)Pb(Mg1/3Nb2/3)O(3)xxPbTiO(3) (PMNT). Cation concentrations were determined with high accuracy and ultimate relative experimental uncertainty of +/- 1%, showing that the average chemical composition of the crystal corresponds to Pb(Mg1/3Nb2/3)(0.67)Ti0.33O3 (i.e., x=0.33), which is close to the morphotropic phase boundary composition. Over the PMNT single crystal slight compositional heterogeneity was measured for concentrations of the perovskite B-site cations Ti4+, Mg2+, and Nb5+, with variations up to +/- 2.3%, whereas the Pb concentration remained uniform within a variation below +/- 0.5%.
引用
收藏
页码：1138 / 1144
页数：7
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