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Vol. 29 No. 8 (2017): Vol 29 Issue 8

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Structural, Dielectric and Electrical Properties of (1-x)CaCu3Ti4O12−xBaTiO3 Ceramics

https://doi.org/10.14233/ajchem.2017.20642
N. Hadi
Signals Systems and Components Laboratory, Faculte des Sciences et Techniques de Fes, Université Sidi Mohamed Ben Abdellah, Fez B.P. 2202, Morocco
T. Lamcharfi
Signals Systems and Components Laboratory, Faculte des Sciences et Techniques de Fes, Université Sidi Mohamed Ben Abdellah, Fez B.P. 2202, Morocco; Chemistry Laboratory of Condensed Matter, Faculte des Sciences et Techniques de Fes, Université Sidi Mohamed Ben Abdellah, Fez B.P. 2202, Morocco
F. Abdi
Signals Systems and Components Laboratory, Faculte des Sciences et Techniques de Fes, Université Sidi Mohamed Ben Abdellah, Fez B.P. 2202, Morocco
N. Gouitaa
Signals Systems and Components Laboratory, Faculte des Sciences et Techniques de Fes, Université Sidi Mohamed Ben Abdellah, Fez B.P. 2202, Morocco
N.S. Echatoui
Signals Systems and Components Laboratory, Faculte des Sciences et Techniques de Fes, Université Sidi Mohamed Ben Abdellah, Fez B.P. 2202, Morocco
M. Zouhairi
Chemistry Laboratory of Condensed Matter, Faculte des Sciences et Techniques de Fes, Université Sidi Mohamed Ben Abdellah, Fez B.P. 2202, Morocco

Corresponding Author(s) : M. Zouhairi

zouhir963@gmail.com

Asian Journal of Chemistry, Vol. 29 No. 8 (2017): Vol 29 Issue 8

Abstract

In this work, the effect of BaTiO3 (BT) addition on structural, dielectric and electrical properties of CaCu3Ti4O12 (CCTO) ceramic was investigated. Ceramic samples with the chemical formula (1-x)CaCu3Ti4O12 – xBaTiO3, (1-x)CCTO-xBT, (x = 0.00, 0.10, 0.20, 0.30, 0.50 and 1.00) were synthesized by solid state route. The structural studies carried out by X-ray diffraction technique and showed that the perovskite structure cubic and tetragonal phases were formed without any other impurity phases. The addition of BaTiO3 into CCTO system lowered the last crystallite size to about 52 nm and increased the dielectric constant by four orders compared to pure CCTO. Moreover, the results of the complex impedance analyses of (1-x)CCTO–xBT ceramics samples confirmed the presence of non-Debye type of relaxation phenomenon and exhibited a negative temperature coefficient of resistance behaviour.

Keywords

Ceramics Barium titanate Raman spectroscopy
Hadi, N., Lamcharfi, T., Abdi, F., Gouitaa, N., Echatoui, N., & Zouhairi, M. (2017). Structural, Dielectric and Electrical Properties of (1-x)CaCu3Ti4O12−xBaTiO3 Ceramics. Asian Journal of Chemistry, 29(8), 1811–1816. https://doi.org/10.14233/ajchem.2017.20642
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