Journal of Pure and Applied Ultrasonics

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The Thermal Conductivity and Ultrasonic Absorption in Dielectric Crystals


Affiliations
1 Department of Physics, University of Allahabad, Allahabad-211002, India
 

In this paper ultrasonic absorption and other associated parameters have been evaluated in AgCl, LiF and MnO along different directions as a function of higher temperatures. We have also calculated the second and third order elastic constants of these materials for the evaluations. The results are compared with experimental values. It is concluded that the lattice thermal conductivity played an important role in temperature dependence of the ultrasonic absorption in these dielectrics.
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  • The Thermal Conductivity and Ultrasonic Absorption in Dielectric Crystals

Abstract Views: 267  |  PDF Views: 0

Authors

Devraj Singh
Department of Physics, University of Allahabad, Allahabad-211002, India
R. R. Yadav
Department of Physics, University of Allahabad, Allahabad-211002, India

Abstract


In this paper ultrasonic absorption and other associated parameters have been evaluated in AgCl, LiF and MnO along different directions as a function of higher temperatures. We have also calculated the second and third order elastic constants of these materials for the evaluations. The results are compared with experimental values. It is concluded that the lattice thermal conductivity played an important role in temperature dependence of the ultrasonic absorption in these dielectrics.