- Conference date: 5–8 September 2011
- Location: Gdańsk, Poland
An effort has been made for obtaining higher order elastic constants of MgO starting from basic parameters viz. nearest neighbor distance, hardness parameter and using Coulomb and Börn-Mayer potentials. These values are utilized to obtain Grüneisen parameters and non-linearity constants. Non-linearity constants ratio, ultrasonic attenuation due to phonon-phonon interaction (α/f2)p-p and thermo elastic loss (α/f2)th are calculated in a wide temperature range along <100>, <110> and <111> crystallographic directions of propagation for longitudinal and shear waves and compared with available theoretical and experimental results.
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