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Ultrasonic Wave Propagation through Calcium Oxide Single Crystal in High Temperature Range
The calcium oxide crystal possesses well developed fcc structure and is divalent in nature. Oxides and silicates make up the bulk of the Earth's mantle and crust, and thus it is important to predict their behavior for the study of seismic and volcanic activities. The second order elastic constants (SOECs) were computed using Coulomb and Born-Mayer potential in the temperature range 100-1000 K. The ultrasonic velocities were calculated using these values of second order elastic constants and density ρ. In this study temperature dependent velocities in calcium oxide have been calculated along <100>, <110> and <111> crystallographic directions and the results are presented graphically and discussed in depth.
Keywords
Micro Structural Properties, Seismic and Volcanic Activities, Acoustic Wave Velocities, Second Order Elastic Constants.
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