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
Source: 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.
Keywords: Bi4Ti3O12; aqueous solution-gel; thermal analysis; TEM; HT-XRD
Document URI: http://hdl.handle.net/1942/2517
ISSN: 0928-0707
e-ISSN: 1573-4846
DOI: 10.1023/A:1020762824990
ISI #: 000178789100204
Category: A1
Type: Journal Contribution
Validations: ecoom 2003
Appears in Collections:Research publications

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