Journal of Pure and Applied Ultrasonics

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Elastic, Mechanical and Thermal Properties of Wurtzite BeO Nanowires


Affiliations
1 University School of Information Communication and Technology, Guru Gobind Singh, Indraprastha University, Dwarka, Delhi-110078, India
2 Department of Electronics and Communication Engineering, Amity School of Engineering and Technology, Sector-125, Noida-201313, India
3 Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida-201313, India
 

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.

Keywords

Elastic Constant, Nanowire, Thermal Conductivity, Ultrasonic Property.
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  • Elastic, Mechanical and Thermal Properties of Wurtzite BeO Nanowires

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Authors

Sudhanshu Tripathi
University School of Information Communication and Technology, Guru Gobind Singh, Indraprastha University, Dwarka, Delhi-110078, India
Rekha Agarwal
Department of Electronics and Communication Engineering, Amity School of Engineering and Technology, Sector-125, Noida-201313, India
Devraj Singh
Amity Institute of Applied Sciences, Amity University Uttar Pradesh, Noida-201313, India

Abstract


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.

Keywords


Elastic Constant, Nanowire, Thermal Conductivity, Ultrasonic Property.

References