One substance, two liquids?

Article Abstract:

Mishima and Stanley have provided new evidence for the idea that two differing forms of supercooled water can coexist. The idea was used to explain certain anomalies of supercooled water. The coexistence of low-density (LDA) and high-density amorphous ice (HDA) is the low-temperature manifestation of a transition between two liquid phases, LDL and HDL.

Research, Condensed matter

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Absence of thermodynamic phase transition in a model glass former

Article Abstract:

Monte Carlo simulations of a two-dimensional system of polydisperse hard disks far within its glassy phase are presented. The new Monte Carlo algorithm was found to function very well at densities at which the local method is completely stuck.

Usage, Monte Carlo method, Monte Carlo methods

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Supercooled liquids and the glass transition

Article Abstract:

Issues are presented concerning the processes which cause the intermolecular forces within supercooled liquids and glasses to acquire amorphous rigidity without crystallization. The influence of thermodynamics and dynamics is discussed.

Evaluation, Supercooled liquids, Thermodynamics, Crystallization

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