A Comparative Analysis of Elastic, Mechanical, and Thermoelectric Properties in Mg2Y (Y =Si, Ge and Sn) Semiconducting Nanomaterials

The elastic, mechanical, thermodynamic, and ultrasonic properties of Mg2Y (Y=Si, Ge, and Sn) composite semiconducting nanomaterials were investigated by Lennard-Jones potential analysis, which evaluated elastic coefficients in second and third order, and as per our investigation and comparative evaluation from other research works, we can conclude that for the higher orders, the elastic constants in the initial parameter increase little, but for the successor, it will barely increase towards Sn from Si with Mg2. Further, the elastic constants have been used to examine the mechanical characteristics of hexagonal Mg2Y (Y=Si, Ge, and Sn) nanomaterial via its Poisson's ratio, Young’s modulus, bulk modulus, and other relative thermodynamic properties. Here the bulk modulus is presenting an increase in comparison to their bulk moduli. The nanomaterial composition is the same from Si, Ge, and Sn and from here the calculated G/B ratio of 0.976 indicates that Mg2Y (Y=Si, Ge, and Sn) is primarily composed of ionic bonds. When computing the thermal conductivity (kmin) at different compositions, the computation outcomes have been satisfactory. As composition changes from Si, Ge, and Sn, the thermal conductivity of compositions Mg2Y (Y=Si, Ge, and Sn) increases continuously with a steady state of hardness indication. This composition, which compounds Mg2Si, Mg2Ge, and Mg2Sn has also been tested for attenuation and composition dependent ultrasonic velocities and depicted in their relative responses. This composition is at its purest at initial attenuation, and its ductility is indicated by its lowest attenuation.