Journal of Pure and Applied Ultrasonics

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Concentration Dependence of Ultrasonic Attenuation in NaCl-NaCN Mixed Crystal System


Affiliations
1 Department of Physics B.S.N.V.P.G. College, Charbagh Lucknow-226 001,, India
 

The paper presents theoretical temperature dependent mechanical and thermophysical properties of mixed crystal system using ultrasonic analysis. The Coulomb and Born-Mayer potential was applied to evaluate the second and third order elastic constants of the material at the temperature range 100-500 K. The second order elastic constants are used to compute mechanical properties such as bulk modulus, shear modulus and Debye average velocity. Ultrasonic attenuation due to phonon-phonon interaction for longitudinal and shear wave and thermoelastic loss have been evaluated at these temperatures along <111> direction. The obtained results are discussed in correlation with available results on these properties for the chosen material.

Keywords

US Propagation, Attenuation, Mixed Crystals
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  • Concentration Dependence of Ultrasonic Attenuation in NaCl-NaCN Mixed Crystal System

Abstract Views: 270  |  PDF Views: 1

Authors

Arvind Kumar Tiwari
Department of Physics B.S.N.V.P.G. College, Charbagh Lucknow-226 001,, India

Abstract


The paper presents theoretical temperature dependent mechanical and thermophysical properties of mixed crystal system using ultrasonic analysis. The Coulomb and Born-Mayer potential was applied to evaluate the second and third order elastic constants of the material at the temperature range 100-500 K. The second order elastic constants are used to compute mechanical properties such as bulk modulus, shear modulus and Debye average velocity. Ultrasonic attenuation due to phonon-phonon interaction for longitudinal and shear wave and thermoelastic loss have been evaluated at these temperatures along <111> direction. The obtained results are discussed in correlation with available results on these properties for the chosen material.

Keywords


US Propagation, Attenuation, Mixed Crystals

References