Elastic Moduli and Elastic Constants of Alloy AuCuSi With FCC Structure Under Pressure

This paper studies on the dependence of the mean nearest neighbor distance, the Young modulus , the bulk modulus , the rigidity modulus and the elastic constants , , on temperature, pressure, the concentration of substitution atoms and the concentration of interstitial atoms for alloy AuCuSi (substitution alloy AuCu with interstitial atom Si) with FCC structure by the way of the statistical moment method (SMM). The numerical results for alloy AuCuSi are compared with the numerical results for main metal Au, substitution alloy AuCu, interstitial alloy AuSi, other calculated results and experiments.