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Heat capacity and heat content of BiNb5O14

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Abstract

The heat capacity and the heat content of bismuth niobate BiNb5O14 were measured by the relaxation time method, DSC and drop method, respectively. The temperature dependence of heat capacity in the form C pm=455.84+0.06016T–7.7342·106/T 2 (J K–1 mol–1) was derived by the least squares method from the experimental data. Furthermore, the standard molar entropy at 298.15 K S m=397.17 J K–1 mol–1 was derived from the low temperature heat capacity measurement.

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Authors and Affiliations

  1. Department of Solid State Engineering, Institute of Chemical Technology, Prague 6, Czech Republic, 166 28, Technická 5

    M. Hampl & J. Leitner

  2. Department of Physical Chemistry, Institute of Chemical Technology, Prague 6, Czech Republic, 166 28, Technická 5

    K. Růžička & M. Straka

  3. Department of Electronic Structures, Faculty of Mathematics and Physics, Charles University, Prague 2, Czech Republic, 120 00, Ke Karlovu 5

    P. Svoboda

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  1. M. Hampl
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  2. J. Leitner
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  3. K. Růžička
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  4. M. Straka
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  5. P. Svoboda
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Correspondence to J. Leitner.

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Hampl, M., Leitner, J., Růžička, K. et al. Heat capacity and heat content of BiNb5O14 . J Therm Anal Calorim 87, 553–556 (2007). https://doi.org/10.1007/s10973-006-7732-x

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  • DOI: https://doi.org/10.1007/s10973-006-7732-x

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