Lindemann's rule applied to the melting of crystals and ultra-stable glasses

Robert Tournier (1)

1 NEEL - MagSup - Magnétisme et Supraconductivité

The ratio of the mean square amplitude root of thermal vibrations and the interatomic distance is a universal constant δls at the melting temperature Tm. The classical Gibbs free energy change completed by a volume energy saving ɛls (or Δɛlg) × ΔHm that governs the liquid to solid and liquid to ultra-stable glass transformations leads to a universal constant equal to δls (or δlg), ΔHm being the crystal melting enthalpy. The minimum values 0.217 of ɛls and 0.103 of δls are used to predict ultra-stable glass formation in pure metallic liquid elements at a universal reduced temperature θg = (Tg − Tm)/Tm = −0.6223.

Domaines: Physique [physics]

Robert Tournier. Lindemann's rule applied to the melting of crystals and ultra-stable glasses. Chemical Physics Letters, 2016, 651, pp.198-202. ⟨10.1016/j.cplett.2016.03.043⟩. ⟨hal-01971422⟩