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Third Order Elastic Constants and Pressure Derivatives of Second Order Elastic Constant of Copper and Aluminum

Vikram Singh and B K Sharma

Physics department,
Agra College, Agra (U.P), INDIA.

ABSTRACT

Third order elastic constants of Cu and Al are carried out by taking simple two body potential = - A r -n + B exp (-Pr m). Pressure derivatives of second order elastic constants and first derivative of Bulk Modulus of Cu and Al are also calculated and compare these results with experimental results. Computed results of TOEC, pressure derivatives of SOEC and first derivative of Bulk Modulus of both Cu and Al are fairly well agreement with experimental results.

Keywords : Two body potential, Bulk Modulus, Elastic constant, pressure derivatives.