Experimental and numerical investigation of a ceramic dielectric resonator (DRA) : CaCu3Ti4O12 (CCTO)

In this study, the CaCu3Ti4O12 (CCTO) ceramic phase was synthesized by microwave heating in a much shorter time compared to the conventional heating methods. The results indicate that microwave processing is a promising method for preparing CCTO ceramics. CCTO was prepared using a domestic microwave...

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Published in:Physica. B, Condensed matter Condensed matter, 2008-03, Vol.403 (4), p.586-594
Main Authors: ALMEIDA, A. F. L, SILVA, R. R, ROCHA, H. H. B, FECHINE, P. B. A, CAVALCANTI, F. S. A, VALENTE, M. A, FREIRE, F. N. A, SOHN, R. S. T. M, SOMBRA, A. S. B
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Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric loss and relaxation
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Physics
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creator ALMEIDA, A. F. L
SILVA, R. R
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SOMBRA, A. S. B
description In this study, the CaCu3Ti4O12 (CCTO) ceramic phase was synthesized by microwave heating in a much shorter time compared to the conventional heating methods. The results indicate that microwave processing is a promising method for preparing CCTO ceramics. CCTO was prepared using a domestic microwave oven operated at 2.45GHz with 800W. After a few minutes of microwave irradiation the formation of CCTO was confirmed by X-ray powder diffraction. The CCTO ceramic was studied in the medium-frequency (MF) range (100Hz-1MHz) and in the microwave range of frequencies. The experimental and theoretical characteristics of the dielectric resonator antenna are investigated.
doi_str_mv 10.1016/j.physb.2007.08.222
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subjects Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric loss and relaxation
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Physics
title Experimental and numerical investigation of a ceramic dielectric resonator (DRA) : CaCu3Ti4O12 (CCTO)
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