Microstructural Evolution of Sol-Gel Derived PZT Thin Films

Autor:	Cheng-Chen Hsueh, Martha L. Mecartney
Rok vydání:	1991
Předmět:	Microstructural evolution Materials science Transmission electron microscopy Pyrochlore engineering engineering.material Thin film Composite material Ferroelectricity Grain size Perovskite (structure) Sol-gel
Zdroj:	MRS Proceedings. 243
ISSN:	1946-4274 0272-9172
DOI:	10.1557/proc-243-451
Popis:	Transmission electron microscopy (TEM) was used to investigate the microstructural evolution of sol-gel derived ferroelectric PZT films. Aggregates of perovskite crystals nucleated and grew out of a pyrochlore matrix at 550°C. A dense, single-phase perovskite PZT film was obtained by fast firing the film at 650°C for 30 minutes. The grain size of this film was approximately 0.2-0.4 μm. Hot-stage TEM observed disappearance of ferroelectric domains as the temperature approaching 325°C.
Databáze:	OpenAIRE
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