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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/2517

Title: The formation of ferroelectric bismuth titanate (Bi4Ti3O12) from an aqueous metal-chelate gel
Authors: HARDY, An
MONDELAERS, Dirk
VANHOYLAND, Geert
VAN BAEL, Marlies
MULLENS, Jules
VAN POUCKE, Lucien
Issue Date: 2003
Publisher: KLUWER ACADEMIC PUBL
Citation: JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 26(1-3). p. 1103-1107
Abstract: Bismuth titanate (Bi4Ti3O12) was synthesized by an aqueous solution-gel process starting from solutions of bismuth acetate and a peroxocitrato-Ti(IV) complex. To gain insight into the thermal decomposition pattern of the gel several thermal analysis techniques were employed: DTA, TGA-EGA (evolved gas analysis by on-line coupling to a FTIR or mass spectrometer) and HT-DRIFT. Transmission electron micrographs showed that the gel is chemically homogeneous down to ca. 5 nm and that this homogeneity is preserved throughout the heat treatment. High-temperature X-ray diffraction measurements were used to make an in situ study of the phase formation. It has been found that single phase Bi4Ti3O12 is formed at 625degreesC.
Notes: Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, B-3590 Diepenbeek, Belgium.Mullens, J, Limburgs Univ Ctr, IMO, Lab Inorgan & Phys Chem, Univ Campus, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/2517
DOI: 10.1023/A:1020762824990
ISI #: 000178789100204
ISSN: 0928-0707
Category: A1
Type: Journal Contribution
Validation: ecoom, 2003
Appears in Collections: Research publications

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