Sintering ability of BaTiO3 powders elaborated by citric process

BaTiO3 powders were synthesised by several methods, using mixed citrates as precursors. The compounds were used alone, or dissolved in aqueous or organic solutions, yielding a variety of powder morphologies, including blocks of aggregates, hollow spheres, plate-like agglomerates, porous plates and b...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 1993, Vol.12 (2), p.153-157
Main Authors: LE CALVE-PROUST, C, HUSSON, E, ODIER, P, COUTURES, J. P
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Electrotechnical and electronic ceramics
Exact sciences and technology
Technical ceramics
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Summary:BaTiO3 powders were synthesised by several methods, using mixed citrates as precursors. The compounds were used alone, or dissolved in aqueous or organic solutions, yielding a variety of powder morphologies, including blocks of aggregates, hollow spheres, plate-like agglomerates, porous plates and blocks. The pore size distributions of the green compacts were determined by mercury intrusion, and the sintering was followed by dilatometry. The sintering of the powders was mainly dependent upon the degree of agglomeration, which was controlled by the synthesis method. A powder densification mechanism is proposed. 10 refs.
ISSN:0955-2219
1873-619X
DOI:10.1016/0955-2219(93)90136-F