Abstract
Abstract We present a detailed theoretical study of the elastic properties of η-Ta2N3 under pressure ranging from 0 GPa to 80 GPa by plane-wave pseudopotential density functional theory with the generalized gradient approximation in this paper. The results show that η-Ta2N3 is mechanically unstable at ambient conditions because of a negative C66, and it will be stable when the pressure is up to 10.7 GPa. The thermodynamic properties of η-Ta2N3 are also investigated through quasi-harmonic Debye model in a pressure range of 0–80 GPa and a temperature range of 0–1500 K. The Debye temperature, heat capacity and thermal expansion with pressure and temperature are successfully obtained and discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
