Temperature Dependence of Elastic Constants of Alkaline Earth Oxides | Zendy

Seema Gupta | Zendy; S. P. Singh | Zendy; Vipra Pandey | Zendy; Shubhank Goyal | Zendy

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Temperature Dependence of Elastic Constants of Alkaline Earth Oxides

Author(s) -

Seema Gupta,

S. P. Singh,

Vipra Pandey,

Shubhank Goyal

Publication year - 2009

Publication title -

srx materials science

Language(s) - English

Resource type - Journals

ISSN - 2090-1119

DOI - 10.3814/2010/890650

Subject(s) - alkaline earth metal , bulk modulus , elastic modulus , phonon , thermodynamics , range (aeronautics) , materials science , condensed matter physics , earth (classical element) , chemistry , mineralogy , physics , alkali metal , composite material , quantum mechanics , mathematical physics

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 (300K°–2000K°). The results are found to be satisfactory and are in agreement with available experimental and the theoretical results.

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