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Vol. 33 No. 6 (2021): Vol 33 Issue 6, 2021

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Synthesis and Physico-chemical Characterization of Solid Solution (1-x)CCTO−xPbTiO3

https://doi.org/10.14233/ajchem.2021.23134
M. Slaoui
Condensed Matter Chemistry Laboratory, Sidi Mohammed Ben Abdellah University, BP 2202, Route d'Imouzzer, Faculty of Science and Technology of Fez, BP 2202, Fez, Morocco ; Signals, Systems and Components Laboratory, Sidi Mohammed Ben Abdellah University, BP 2202, Route d'Imouzzer, Faculty of Science and Technology of Fez, BP 2202, Fez, Morocco
N. Gouitaa
Signals, Systems and Components Laboratory, Sidi Mohammed Ben Abdellah University, BP 2202, Route d'Imouzzer, Faculty of Science and Technology of Fez, BP 2202, Fez, Morocco
A. Lahrichi
Signals, Systems and Components Laboratory, Sidi Mohammed Ben Abdellah University, BP 2202, Route d'Imouzzer, Faculty of Science and Technology of Fez, BP 2202, Fez, Morocco
A. Harrach
Condensed Matter Chemistry Laboratory, Sidi Mohammed Ben Abdellah University, BP 2202, Route d'Imouzzer, Faculty of Science and Technology of Fez, BP 2202, Fez, Morocco
M. Haddad
Materials and Archaeomaterials Spectrometry Laboratory (LASMAR), research unit associated with CNRST (URAC11), Moulay-Ismail University, Faculty of Sciences, 50000 Meknès, Maroc
T. Lamcharfi
Signals, Systems and Components Laboratory, Sidi Mohammed Ben Abdellah University, BP 2202, Route d'Imouzzer, Faculty of Science and Technology of Fez, BP 2202, Fez, Morocco

Corresponding Author(s) : T. Lamcharfi

Asian Journal of Chemistry, Vol. 33 No. 6 (2021): Vol 33 Issue 6, 2021

Abstract

The composite materials of (1-x)CaCu3Ti4O12, xPbTiO3((1-x)CCTO−xPT) were prepared by a modified solid-state method in several steps. The Rietveld refinement indicates the formation of the pure cubic and tetragonal phases for calcium copper titanate (CCTO) and lead-titanate (PT) pure ceramics, respectively. While for CCTO-PT composites, the coexistence of the two cubic and tetragonal phases was detected with the space group Im-3 and P4mm, respectively. The Raman spectra confirmed these phase formations. The SEM images indicated a change in grains shape from quadratic to semi-spherical with increases of PT contents and a reduce in average grains size with increase of PT content. The dielectric measurements as function of temperature showed two anomalies which exhibit a relaxation-like phenomenon and a clear diffuseness behaviour for all the samples. In addition, the conductivity of these materials decreases and the resistance of grain boundaries was found to increase with the increase of PT addition.

Keywords

Solid-state Relaxation Diffuseness Conductivity Grain boundaries.
Slaoui, M., Gouitaa, N., Lahrichi, A., Harrach, A., Haddad, M., & Lamcharfi, T. (2021). Synthesis and Physico-chemical Characterization of Solid Solution (1-x)CCTO−xPbTiO3. Asian Journal of Chemistry, 33(6), 1208–1214. https://doi.org/10.14233/ajchem.2021.23134
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Author Biography

N. Gouitaa, Signals, Systems and Components Laboratory, Sidi Mohammed Ben Abdellah University, BP 2202, Route d'Imouzzer, Faculty of Science and Technology of Fez, BP 2202, Fez, Morocco

 

 

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