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Investigation of the thermal conductivity of SiC-BeO ceramics at high pressures and temperatures

  • S. N. Emirov
  • G. G. Gadzhiev
  • E. N. Ramazanova
  • Z. Z. Abdulagatova
  • E. M. Magomedmirzoev
Article
  • 39 Downloads

Abstract

We present the results of our experimental studies of the thermal conductivity for SiC and SiC + 1.2% BeO ceramic samples as a function of the hydrostatic pressure up to 400 MPa in the temperature range 273–523 K. We show that pressure leads to a nonlinear increase in thermal conductivity and to an additional phonon scattering by lattice defects.

Keywords

Thermal Conductivity Hydrostatic Pressure Pressure Dependence Phonon Scattering Strel 
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Copyright information

© Allerton Press, Inc. 2007

Authors and Affiliations

  • S. N. Emirov
    • 1
  • G. G. Gadzhiev
    • 2
  • E. N. Ramazanova
    • 1
  • Z. Z. Abdulagatova
    • 1
  • E. M. Magomedmirzoev
    • 1
  1. 1.Institute of Geothermometry Problems, Dagestan Scientific CenterRussian Academy of SciencesMakhachkalaRussia
  2. 2.Institute of Physics, Dagestan Scientific CenterRussian Academy of SciencesMakhachkalaRussia

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