Structural and electrical study of CaCu3Ti4O12 (CCTO) obtained in a new ceramic procedure

In this study, the CaCu 3 Ti 4 O 12 (CCTO) ceramic phase was synthesized by microwave heating in a much shorter time compared with conventional ceramic methods. The results indicate that the microwave processing is a promising method for preparing CCTO ceramics. CCTO was prepared using a domestic mi...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2009-02, Vol.20 (2), p.163-170
Main Authors: Almeida, A. F. L., Fechine, P. B. A., Graça, M. P. F., Valente, M. A., Sombra, A. S. B.
Format: Article
Language:English
Subjects:
Applied sciences
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Electronics
Exact sciences and technology
Materials
Materials Science
Microwave heating
Optical and Electronic Materials
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Summary:In this study, the CaCu 3 Ti 4 O 12 (CCTO) ceramic phase was synthesized by microwave heating in a much shorter time compared with conventional ceramic methods. The results indicate that the microwave processing is a promising method for preparing CCTO ceramics. CCTO was prepared using a domestic microwave oven operated at 2.45 GHz with 800 W. The XRD, infrared and Raman scattering spectroscopy was used in the structural studies of the samples. After few minutes of microwaves irradiation the formation of CCTO was confirmed by the X-ray powder diffraction. Electrical measurements was performed and shows that the dielectric permittivity of the samples are in the order of 10 6 .
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-008-9675-4