Calculation of the low-temperature lattice specific heats of Al—Be and Al—Mg alloys

Isabelle Baraille (1) , Claude Pouchan (1) , Francis Marinelli (2) , Michel Roche (3)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux
2 PIIM - Physique des interactions ioniques et moléculaires
3 UMR CNRS 6517 - Laboratoire de Chimie Théorique

The low-temperature lattice specific heats of dilute face centered cubic Al—Be and Al—Mg alloys have been calculated by applying the Green function method to an isolated substitutional solute. Different behaviours of the specific heat are reported: Be significantly enhances the lattice specific heat of Al—Be alloys while that for the Al—Mg alloy is strongly decreased by Mg.

Domaines: Chimie; Chimie théorique et/ou physique

Isabelle Baraille, Claude Pouchan, Francis Marinelli, Michel Roche. Calculation of the low-temperature lattice specific heats of Al—Be and Al—Mg alloys. Chemical Physics Letters, 1993, 207 (2), pp.203-207. ⟨10.1016/0009-2614(93)87015-U⟩. ⟨hal-01536041⟩