Investigation of CaCu3Ti4O12 Precursor by Simultaneous TGA and DSC Analysis in Oxygen Environment

Noruzaman Daud; Julie Juliewatty Mohamed; Mohamad Johari bin Abu; Mohd Fariz Ab Rahman; Siti Roshayu binti Hassan; Hasmaliza Mohammed; Zainal Arifin Ahmad

doi:10.4028/www.scientific.net/MSF.1010.228

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HomeMaterials Science ForumMaterials Science Forum Vol. 1010Investigation of CaCu3Ti4O12 Precursor by...

Investigation of CaCu₃Ti₄O₁₂ Precursor by Simultaneous TGA and DSC Analysis in Oxygen Environment

Abstract:

CCTO consist of huge dielectric constant up to 10⁵ at temperature range -173 °C to 326 °C becomes an attraction to investigate the CCTO ceramics. The samples were tested using simultaneous thermogravimetry (TGA) and differential calorimetry (DSC) measurement in dual atmospheric gases condition by flowing nitrogen and oxygen gas. Phase changes of CCTO precursor were analyzed by X-ray diffraction machine. The samples CT900 and CT1000 occur both of mass loss and reabsorption due to the oxygen-rich environment. The mass loss for both samples CT900 and CT1000 has complete curves of CaCO₃ decomposition. Sample CT900 shows incomplete of heat flow changes compare to samples CTNML and CT1000. The result shows that the formation of the CCTO phase structure does not depend on the oxygen gas environment but also requires specific heat of energy and temperature to changes the phase structure. DSC graph shows two magnitudes of heat flow changes for sample CT1000 that are an endothermic at temperature peak points 824 °C and 984 °C.

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Periodical:

Materials Science Forum (Volume 1010)

Pages:

228-232

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1010.228

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Online since:

September 2020

Authors:

Noruzaman Daud*, Julie Juliewatty Mohamed, Mohamad Johari bin Abu, Mohd Fariz Ab Rahman, Siti Roshayu binti Hassan, Hasmaliza Mohammed, Zainal Arifin Ahmad

Keywords:

CCTO, Solid-State Reaction, Thermal Analysis, X-Ray Diffraction

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References

[1] M.H. Wangbo, M. A. Subramanian, Structural model of planar defects in CaCu3Ti4O12 exhibiting a giant dielectric constant, Chem. Mater.18 (2006) 3257–3260.

DOI: 10.1021/cm060323f

Google Scholar

[2] J. Li, A.W. Sleight, M. A. Subramanian, Evidence for internal resistive barriers in a crystal of the giant dielectric constant material CaCu3Ti4O12, Solid. State. Commun. 135 (2005) 260.

DOI: 10.1016/j.ssc.2005.04.028

Google Scholar

[3] J. Valo, M. Leskela, Handbook of Thermal Analysis and Calorimetry, Vol.2 Application to Inorganic materials, Elsevier, Amsterdam, 2003, Chap 15.

Google Scholar

[4] A.A. Levchenko, L. Marchin, Y. Moriya, H. Kawaji, T. Atake, S. Guillemet-Fritsch, A. Navrotsky, Calorimetric study of CaCu 3 Ti 4 O 12, a ceramic with giant permittivity, J. Mater. Res. 23(6) (2008) 1522-1531.

DOI: 10.1557/jmr.2008.0201

Google Scholar

[5] Q. Yin, J. Kniep, Y. S. Lin, High temperature air separation by perovskite-type oxide sorbents–Heat effect minimization, Chem. Eng. Sci. 63(24) (2008) 5870-5875.

DOI: 10.1016/j.ces.2008.09.004

Google Scholar

[6] X. Ouyang, S. Huang, W. Zhang, P. Cao, Z. Huang, W. Gao, Investigation of phase evolution of CaCu3Ti4O12 (CCTO) by in situ synchrotron high-temperature powder diffraction, J. Solid. State. Chem. 211 (2014) 58-62.

DOI: 10.1016/j.jssc.2013.12.009

Google Scholar

[7] J.J. Romero, P. Leret, F. Rubio-Marcos, A. Quesada, J. F. Fernández, Evolution of the intergranular phase during sintering of CaCu3Ti4O12 ceramics, J. Eur. Ceram. Soc 30(3) (2010) 737-742.

DOI: 10.1016/j.jeurceramsoc.2009.08.024

Google Scholar

[8] Y.S. Lin, D.L. McLean, Y. Zeng, High temperature adsorption process. U.S. Patent 6059858. (2000).

Google Scholar