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
收藏
页码：1345 / 1348
页数：4
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