Higher order thermoelastic properties of some transition metals at high pressures. (2021)

• Record Type: Journal Article
• Authors: Sheelendra, K.; Vijay, A.
• Is Part Of: Materials today. Volume 42:Part 4(2021)
• Page Start: 1661
• Page End: 1664
• Publication Date: 2021
• Subjects: Grüneisen parameters -- Infinite pressure behavior -- Transition metals; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.07.551
• Languages: English
• ISSNs: 2214-7853

Abstract

Highlights: The Grüneisen parameter γ and its higher order derivatives have been calculated. The results obtained in the present study satisfy the thermodynamic constraints in the limit of infinite pressure. Stacey-Davis formulation are compared with the Shanker reciprocal gamma equation. The present study is comparable with the Shanker reciprocal gamma equation. Abstract: The infinite pressure theory due to Stacey has been used to calculate the higher-order Grüneisen parameters for some transition metals at high pressures [2, 3] . The results have been obtained using the Shanker reciprocal gamma relationship. The results have also been determined using the Stacey- Davis formulations for the third-order Grüneisen parameters [1–3] . The calculations have been performed in the case of transition metals viz. Fe, Co, Ni, Cu, Zn, Mo, Pd, Ag, Cd, Pt, Au, and the Ti for the wide range of compressions. It has been found that both the models yield close agreement with each other. The results obtained in the present study satisfy the thermodynamic constraints in the limit of infinite pressure.