Research Article | Open Access
Temperature Dependence of Elastic Constants of Alkaline Earth Oxides
The elastic properties of alkaline earth oxides (AEOs) under high temperature are discussed within the framework of many body Lundqvist potential incorporating the contribution of thermal phonon pressure. The short-range repulsive interaction is taken up to the second nearest neighbors. The derived expressions are used to compute the values of second-order elastic constants (SOECs) and bulk modulus of alkaline earth oxides at different temperatures (300–2000). The results are found to be satisfactory and are in agreement with available experimental and the theoretical results.
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