EXTENDED X-RAY-ABSORPTION FINE-STRUCTURE DETERMINATION OF LOCAL-STRUCTURE IN SOL-GEL-DERIVED LEAD TITANATE, LEAD ZIRCONATE, AND LEAD-ZIRCONATE-TITANATE

被引：36

作者：

SENGUPTA, SS ^{[1
]}

MA, L ^{[1
]}

ADLER, DL ^{[1
]}

PAYNE, DA ^{[1
]}

机构：

[1] UNIV ILLINOIS,BECKMAN INST,URBANA,IL 61801

来源：

JOURNAL OF MATERIALS RESEARCH | 1995年 / 10卷 / 06期

基金：

美国能源部;

关键词：

D O I：

10.1557/JMR.1995.1345

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on extended x-ray absorption fine structure (EXAFS) measurements for partially heat-treated gels in the lead zirconate titanate system (PZT). Self-consistent results obtained from the titanium and zirconium K-edges and the lead LIII-edge were used to determine bonding pathways between cations. For lead titantate (PT) and PZT gels, separate networks of predominantly Ti-O-Ti, Zr-O-Zr, and Pb-O-Pb linkages were observed. For lead zirconate (PZ) gels, both Zr-O-Pb and Zr-O-Zr linkages were observed. The results indicate heterogeneity at the molecular level. These findings are discussed in terms of the evolution of structure for PZT materials prepared by our sol-gel method.

引用

页码：1345 / 1348

页数：4

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