Effect of copper substitution on the microstructure and ferroelectric properties of barium titanate

In view of the fact that Cu can act as a Curie point shifter and the oxide CuO can act as a flux agent, a study was undertaken to investigate the effect of copper ion substitution on BaTiO3 to yield Ba(Ti1-xCu2x)O3 compositions with x = 0.025, 0.05 and 0.1. The variations of dielectric properties an...

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Bibliographic Details
Published in:Journal of materials science letters 1997, Vol.16 (4), p.313-315
Main Authors: RAMESH BABU, A, PRASADARAO, A. V
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Electrotechnical and electronic ceramics
Exact sciences and technology
Niobates, titanates, tantalates, pzt ceramics, etc
Physics
Technical ceramics
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Summary:In view of the fact that Cu can act as a Curie point shifter and the oxide CuO can act as a flux agent, a study was undertaken to investigate the effect of copper ion substitution on BaTiO3 to yield Ba(Ti1-xCu2x)O3 compositions with x = 0.025, 0.05 and 0.1. The variations of dielectric properties and corresponding microstructure as a function of Cu concentration in BaTiO3 are discussed in comparison with those of isovalent Sn modified BaTiO3 ceramics. 20 refs.
ISSN:0261-8028
DOI:10.1023/A:1018565504963