4.0 Article

Caloric characteristics of PbTiO3 in the temperature range of the ferroelectric phase transition

Journal

PHYSICS OF THE SOLID STATE
Volume 54, Issue 9, Pages 1832-1840

Publisher

MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S1063783412090181

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Funding

  1. Russian Foundation for Basic Research [12-08-00079]
  2. Council on Grants from the Russian Federation for Support of Leading Scientific Schools of the Russian Federation [NSh-4828.2012.2]

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The heat capacity and thermal expansion of the PbTiO3 ceramic sample have been measured in the temperature range 80-970 K. The electrocaloric and barocaloric efficiencies of lead titanate in the ferroelectric phase transition range have been investigated by analyzing the experimental data in terms of the thermodynamic theory of phase transitions, the electrical equation of state P(T, E), the Pippard equation, and the S(T, p) diagram.

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