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Estimation of thermal conductivity coefficient for solid-state crystal dielectrics at high temperatures

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Journal of Contemporary Physics (Armenian Academy of Sciences) Aims and scope

Abstract

A generalized expression for approximate estimation of lattice component of thermal conductivity coefficient for solid-state crystal dielectrics at temperatures higher than the Debye temperature, is obtained, which is convenient for preliminary estimation of thermal conductivity coefficient and enables one to conduct a goal-directed search for low-conductivity materials. On the example of rare-earth magnesium hexaaluminates, it is shown that estimations according to the obtained expression are in good compliance with experimental data.

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Authors and Affiliations

  1. Institute for Physical Research, NAS of Armenia, Ashtarak, Armenia

    A. V. Yeganyan & A. S. Kuzanyan

  2. General Department of Applied Sciences, Technological Educational Institute of Sterea Ellada, GR34400, Psahna Evias, Chalkida, Greece

    V. Stathopoulos

Authors
  1. A. V. Yeganyan
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  2. A. S. Kuzanyan
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  3. V. Stathopoulos
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Corresponding author

Correspondence to A. V. Yeganyan.

Additional information

Original Russian Text © A.V. Yeganyan, A.S. Kuzanyan, V. Stathopoulos, 2014, published in Izvestiya NAN Armenii, Fizika, 2014, Vol. 49, No. 4, pp. 278–283.

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Yeganyan, A.V., Kuzanyan, A.S. & Stathopoulos, V. Estimation of thermal conductivity coefficient for solid-state crystal dielectrics at high temperatures. J. Contemp. Phys. 49, 176–179 (2014). https://doi.org/10.3103/S1068337214040070

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  • DOI: https://doi.org/10.3103/S1068337214040070

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