RT Journal Article
T1 Is it possible to overheat ice? The activated melting of TIP4P/Ice at solid–vapour coexistence
A1 Baran, Lukasz
A1 Llombart, Pablo
A1 Noya, Eva G.
A1 González Mac-Dowell, Luis
AB A widely accepted phenomenological rule states that solids with free surfaces cannot be overheated. In this work we discuss this statement critically under the light of the statistical thermodynamics of interfacial roughening transitions. Our results show that the basal face of ice as described by the TIP4P/Ice model can remain mechanically stable for more than one hundred nanoseconds when overheated by 1 K, and for several hundreds of nanoseconds at smaller overheating despite the presence of a significant quasi-liquid layer at the surface. Such time scales, which are often of little experimental significance, can become a concern for the determination of melting points by computer simulations using the direct coexistence method. In the light of this observation, we reinterpret computer simulations of ice premelting and show that current results for the TIP4P/Ice model all imply a scenario of incomplete surface melting. Using a thermodynamic integration path, we reassess our own estimates for the Laplace pressure difference between water and vapour. These calculations are used to measure the disjoining pressure of premelting liquid films and allow us to confirm a minimum of the interfacial free energy at finite premelting thickness of about one nanometer
PB Taylor & Francis
YR 2024
FD 2024
LK https://hdl.handle.net/20.500.14352/109009
UL https://hdl.handle.net/20.500.14352/109009
LA eng
NO Article published online, volume yet unassigned.
NO Ministerio de Ciencia e Innovación
DS Docta Complutense
RD 19 abr 2025