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Quantitative Microanalysis of (1–x)Pb(Mg1/3Nb2/3)O3×xPbTiO3 (PMNT) Ferroelectric Ceramicsa

Published online by Cambridge University Press:  05 March 2015

Zoran Samardžija*
Affiliation:
Jožef Stefan Institute, Department for Nanostructured Materials, Jamova cesta 39, SI-1000 Ljubljana, Slovenia
*
*Corresponding author.zoran.samardzija@ijs.si
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Abstract

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)O3×xPbTiO3 (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)0.67Ti0.33O3 (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%.

Type
EMAS Special Issue
Copyright
© Microscopy Society of America 2015 

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Footnotes

a

This article is intended for the Special Issue from the EMAS 2014 Workshop on Electron Probe Microanalysis of Materials TodayRare and Noble Elements: from Ore Deposits to High-tech Materials.

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