6533b839fe1ef96bd12a6e76

RESEARCH PRODUCT

Simulations clarify when supercooled water freezes into glassy structures

Kurt Binder

subject

Phase transitionMultidisciplinaryIce crystalsLiquid waterChemistryAmorphous iceThermodynamicsNon-equilibrium thermodynamicsSupercoolingPhase diagram

description

Although liquid water is a ubiquitous substance and its properties are crucial for all living species, the precise understanding of these properties is still a matter of active scientific research. One rather mysterious aspect concerns the conditions when undercooled water freezes not into ice crystals but into glass-like structures. Based on a rather novel type of computer simulation approach, in PNAS, Limmer and Chandler (1) propose a nonequilibrium phase diagram that attempts to clarify the conditions (temperature, pressure, cooling protocol) under which one should observe transitions from undercooled water to different forms of amorphous ice.

https://doi.org/10.1073/pnas.1408908111