Slow Crystal Growth of Cubic Ice with Stacking Faults in a Glassy Dilute Glycerol Aqueous Solution
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- Yoshiharu Suzuki
- Research Center for Advanced Measurement and Characterization, National Institute for Materials Science (NIMS), Namiki 1-1, Tsukuba, Ibaraki 305-0044, Japan
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- Satoshi Takeya
- Research Institute for Material and Chemical Measurement, National Institute of Advanced Industrial Science and Technology (AIST), Central 5, Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan
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説明
Control of ice formation is an important issue as catastrophic ice growth influences our life activities and many industrial systems. We prepared a homogeneous glass of a dilute glycerol aqueous solution by a pressure liquid cooling vitrification method and examined the effect of solute on the ice formation of solvent water using a powder X-ray diffraction method. The solvent water immediately after the crystallization is composed of nanosized pure cubic ice (ice Ic). The crystal growth of ice Ic with stacking faults is much slower than that of pure water. The presence of glycerol molecules dispersing homogeneously may hinder crystal growth. The macroscopic segregation occurs rapidly during the transformation from stacking disordered ice to hexagonal ice. The results suggest that ice formation can be controlled by changing the solute type and concentration. This study has implications for thawing technology in cryobiology and frozen food engineering.
収録刊行物
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- The Journal of Physical Chemistry Letters
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The Journal of Physical Chemistry Letters 11 (21), 9432-9438, 2020-10-27
American Chemical Society (ACS)
