Theoretical hardness and ideal tensile strength of bct‐C 4 | Zendy

Xu Yuanhui | Zendy; Gao Faming | Zendy; Hao Xianfeng | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Theoretical hardness and ideal tensile strength of bct‐C 4

Author(s) -

Xu Yuanhui,

Gao Faming,

Hao Xianfeng

Publication year - 2010

Publication title -

physica status solidi (rrl) – rapid research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.786

H-Index - 68

eISSN - 1862-6270

pISSN - 1862-6254

DOI - 10.1002/pssr.201004187

Subject(s) - tetragonal crystal system , vickers hardness test , ultimate tensile strength , ideal (ethics) , materials science , diamond , shear modulus , elastic modulus , phase (matter) , crystallography , thermodynamics , composite material , chemistry , crystal structure , microstructure , physics , philosophy , organic chemistry , epistemology

Based on first‐principles calculations we investigated the structural and electronic properties for a new carbon phase with body‐centered tetragonal structure, bct‐C 4 . The single‐elastic constants calculations reveal that bct‐C 4 is mechanically stable under ambient conditions, being consistent with a previous theoretical study. The predicted bulk and shear moduli are 396 GPa and 423 GPa, respectively. The calculated ideal tensile strengths are 80.3 GPa and 130.4 GPa along the 〈100〉 and 〈001〉 directions, respectively. The theoretical Vickers hardness of bct‐C 4 was estimated as 88 GPa, which is comparable to that of diamond. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research