Pyrochlore to perovskite phase transformation in sol-gel derived lead-zirconate-titanate thin films
- 23 March 1992
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 60 (12) , 1430-1432
- https://doi.org/10.1063/1.107312
Abstract
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 °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.Keywords
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