Eur. Phys. J. Appl. Phys.
Volume 44, Number 2, November 2008
|Page(s)||125 - 129|
|Section||Organic Materials and Devices|
|Published online||04 October 2008|
Pressure effect on the structural and elastic properties of ternary compounds M2AlC (M = Ti, V, Nb, and Ta); ab initio study
Department of Physics, Faculty of sciences, University of Setif, Algeria
Corresponding author: email@example.com
Revised: 3 July 2008
Accepted: 11 August 2008
Published online: 4 October 2008
Using ab initio calculations, we have performed a study of the hydrostatic pressure effect on the equilibrium volume, lattice parameters, elastic modulus, and elastic anisotropy of selected M2AlC phases with M = Ti, V, Nb, and Ta. The deviations of our calculated volume change are lower than 3% comparing with experimental measurement, lead to a discrepancy in the bulk modulus less than 15%. Our results show a linear pressure dependence of the elastic modulus and the bulk modulus. Shear elastic anisotropy factor increase with the pressure enhancement, while the compressibility anisotropy remains constant around weak values.
PACS: 62.20.-x – Mechanical properties of solids / 61.50.Lt – Crystal binding; cohesive energy
© EDP Sciences, 2008
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.