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

来源：

APPLIED PHYSICS LETTERS | 1992年 / 60卷 / 12期

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.

引用

页码：1430 / 1432

页数：3

共 8 条

[1]

[Anonymous], 1986, POWDER DIFFRACTION F

[2]

Cullity Bd, 1956, ELEMENTS XRAY DIFFRA, P261

[3]

MEGAW H, 1957, FERROELECTRICITY CRY, P142

[4] PREPARATION OF PB(ZR,TI)O3 THIN-FILMS BY AN ELECTRON-BEAM EVAPORATION TECHNIQUE [J].