DFT Analysis of Mechanical and Dynamic Properties of CuBe

Year 2022, Volume: 35 Issue: 4, 1652 - 1663, 01.12.2022

İlknur Kars Durukan Yasemin Çiftci

https://doi.org/10.35378/gujs.915127

Cited By: 1

Abstract

In this study, we have presented a comprehensive theoretical calculation to analyze the mechanical, and dynamic properties of the CuBe with the Density Functional Theory (DFT). Hardness, plasticity, and Poisson’s ratio are calculated. The ductile nature of the compound was demonstrated by mechanical properties. Also, the melting temperature (Tm) of this material was 1581 ± 300 K. Debye temperature was found to be 489.17 K, estimated from the acoustic velocity. The anisotropy properties of CuBe were evaluated in three dimensions and the presence of anisotropy in all other forms was revealed, except for Linner compression. The charge density plots show that the bonds between Cu-Be are more ionic. As a final word, the absence of negative phonon frequencies of the CuBe intermetallic compound showed its dynamical stability.

Keywords

DFT, Intermetallic, Elastic constants, Anisotropy, Phonon

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