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The existence of supercooled liquid water at 150 K.

Author(s) : SMITH R. S., KAY B. D.

Type of article: Article

Summary

Some theories preclude the existence of the supercooled liquid below an apparent thermodynamic singularity at 228 K; others are consistent with a continuous region of metastability from the melting point at 273 K to the glass transition temperature at 136 K. Here we determine the diffusivity of amorphous ice by studying isotope intermixing in films less than 500 nanometres thick. The magnitude and temperature dependence of the diffusivity is consistent with the idea that the amorphous solid water melts into a deeply metastable extension of normal liquid water before crystallizing at 160 K. This argues against the idea of a singularity in the supercooled regime at ambient pressure.

Details

  • Original title: The existence of supercooled liquid water at 150 K.
  • Record ID : 2000-1014
  • Languages: English
  • Source: Nature - vol. 398 - n. 6730
  • Publication date: 1999/04/29
  • Document available for consultation in the library of the IIR headquarters only.

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