PYROCHLORE TO PEROVSKITE PHASE-TRANSFORMATION IN SOL-GEL DERIVED LEAD-ZIRCONATE-TITANATE THIN-FILMS

被引:123
作者
KWOK, CK
DESU, SB
机构
[1] Department of Materials Engineering, Virginia Polytechnic Institute, State University, Blacksburg
关键词
D O I
10.1063/1.107312
中图分类号
O59 [应用物理学];
学科分类号
摘要
Pyrochlore to perovskite phase transformation in sol-gel derived lead-zirconate-titanate (PZT) films was studied by x-ray diffraction and transmission-electron microscopy (TEM). X-ray diffraction studies of PZT films on sapphire substrates indicated that the pyrochlore to perovskite phase transformation was completed at 650-degrees-C. In contrast, TEM investigations of free-standing PZT films showed that the phase transformation was completed at much higher temperatures. This discrepancy in the behavior of free-standing films versus films on substrate can be related to the size effect.
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页码:1430 / 1432
页数:3
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