Elastic, Mechanical and Thermal Properties of Wurtzite BeO Nanowires

This paper describes the elastic, mechanical, thermal and ultrasonic properties of BeO-nanowires (BeO-NWs) in high temperature regime. The elastic properties of BeO-NWs are computed using Lennard-Jones potential model. Using the higher order elastic constants, the mechanical constants of the material are calculated at room temperature. The Pugh's indicator value confirms the brittle nature of the material. Various ultrasonic parameters such as ultrasonic velocities, Grüneisen parameter, ultrasonic attenuation are obtained with the help of elastic constants and density. In addition, the thermal conductivity of BeO-NWs has also been computed using Morelli and Slack approach. The properties studied in the present investigation are discussed and compared with the previous theoretical and experimental results on NWs.