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Relationship between melting and amorphization of ice.

Author(s) : MISHIMA O.

Type of article: Article

Summary

The discovery in 1984 that an ice crystal can be transformed by pressure to an amorphous phase has been since followed by other examples of pressure-induced amorphization. This transition, like melting, involves loss of long-ranged order, prompting the question of whether the two transitions are related. The authors decribe experiments probing this relationship for a form of crystalline ice which is melted and amorphized by pressure. The sequence of transitions can be viewed as a crossover from a two-phase melting process (which is determined by the relative free energies of the solid and liquid phases) towards a one-phase amorphization process (where the transition is induced by a mechanical instability limit of the solid).

Details

  • Original title: Relationship between melting and amorphization of ice.
  • Record ID : 1997-1975
  • Languages: English
  • Source: Nature - vol. 384 - n. 6609
  • Publication date: 1996/12/12
  • Document available for consultation in the library of the IIR headquarters only.

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