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Investigation of the thermal expansion and heat capacity of the CaCu3Ti4O12 ceramics

Gorev, Michail and Flerov, Igor and Kartashev, Anton V. and Guillemet-Fritsch, Sophie Investigation of the thermal expansion and heat capacity of the CaCu3Ti4O12 ceramics. (2012) Physics of the Solid State, 54 (9). 1785-1789. ISSN 1785-1789

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Official URL: http://dx.doi.org/10.1134/S1063783412090120

Abstract

The thermal expansion of the CaCu3Ti4O12 ceramics has been measured over a wide temperature range 120–1200 K. The high quality of the samples under study has been confirmed by good agreement of the results of measurements of the heat capacity in the range 2–300 K and in the vicinity of the phase transition of magnetic nature at 25 K with the data for the single crystal. No anomalies in the thermal expansion that can be associated with the phase transition at 726–732 K assumed by other investigators have been found. The influence exerted on the thermal expansion by the heat treatment of the sample in a helium atmosphere and in air has been investigated.

Item Type:Article
Additional Information:Thanks to Springer Verlag editor. The definitive version is available at http://link.springer.com/article/10.1134%2FS1063783412090120
HAL Id:hal-00868428
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT (FRANCE)
Other partners > Siberian Branch of the Russian Academy of Sciences - SB RAS (RUSSIA)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Siberian Federal University (RUSSIA)
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Deposited By: cirimat webmestre
Deposited On:01 Oct 2013 12:28

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