Understanding deeply supercooled water is key to unraveling many of water’s anomalous properties. However, this has proven difficult due to rapid and uncontrolled crystallization. Using a pulsed laser heating technique, we measure the growth rate of crystalline ice, G(T), for 180 K 237 K, G(T) and D(T) have super-Arrhenius (“fragile”) temperature dependences, but both crossover to Arrhenius (“strong”) behavior with a large activation energy in “no man’s land.” The fact that G(T) and D(T) are smoothly varying rules out the hypothesis that liquid water’s properties have a singularity at or near 228 K. However the results are consistent with a previous prediction for D(T) that assumed no thermodynamic transitions occur in “no man’s land.
Revised: May 13, 2019 |
Published: December 27, 2016
Citation
Xu Y., N.G. Petrik, R.S. Smith, B.D. Kay, and G.A. Kimmel. 2016.Growth rate of crystalline ice and the diffusivity of supercooled water from 126 to 262 K.Proceedings of the National Academy of Sciences (PNAS) 113, no. 52:14921-14925.PNNL-SA-119195.doi:10.1073/pnas.1611395114