Surface melting of ice

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    Abstract

    The present theories of surface premelting are based on the assumed mechanism whereby a liquid layer is formed because the free energy of the surface is thus minimized. It is shown experimentally here that this mechanism is not possible in the case of ice, for which surface melting below 0 °C is, however, well documented. A mechanism of surface melting, unique for ice, is then proposed. It is based on a concept according to which the surface phase equilibrium temperature differs from that of the bulk material. The new theory predicts the onset temperature of premelting on ice in quantitative agreement with recent experimental data. It also explains regelation of ice and explains why water reaches a density maximum above its freezing point.
    Original languageEnglish
    Pages (from-to)6196 - 6200
    Number of pages5
    JournalThe Journal of Physical Chemistry B
    Volume101
    Issue number32
    DOIs
    Publication statusPublished - 1997
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Ice
    ice
    Melting
    melting
    Freezing
    Phase equilibria
    Free energy
    melting points
    free energy
    Temperature
    temperature
    Water
    Liquids
    liquids
    water

    Cite this

    Makkonen, Lasse. / Surface melting of ice. In: The Journal of Physical Chemistry B. 1997 ; Vol. 101, No. 32. pp. 6196 - 6200.
    @article{481627d36bc54b3cb8dcfd07bacc19b6,
    title = "Surface melting of ice",
    abstract = "The present theories of surface premelting are based on the assumed mechanism whereby a liquid layer is formed because the free energy of the surface is thus minimized. It is shown experimentally here that this mechanism is not possible in the case of ice, for which surface melting below 0 °C is, however, well documented. A mechanism of surface melting, unique for ice, is then proposed. It is based on a concept according to which the surface phase equilibrium temperature differs from that of the bulk material. The new theory predicts the onset temperature of premelting on ice in quantitative agreement with recent experimental data. It also explains regelation of ice and explains why water reaches a density maximum above its freezing point.",
    author = "Lasse Makkonen",
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    doi = "10.1021/jp963248c",
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    publisher = "American Chemical Society ACS",
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    }

    Surface melting of ice. / Makkonen, Lasse.

    In: The Journal of Physical Chemistry B, Vol. 101, No. 32, 1997, p. 6196 - 6200.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Surface melting of ice

    AU - Makkonen, Lasse

    N1 - Project code: R7SU00488

    PY - 1997

    Y1 - 1997

    N2 - The present theories of surface premelting are based on the assumed mechanism whereby a liquid layer is formed because the free energy of the surface is thus minimized. It is shown experimentally here that this mechanism is not possible in the case of ice, for which surface melting below 0 °C is, however, well documented. A mechanism of surface melting, unique for ice, is then proposed. It is based on a concept according to which the surface phase equilibrium temperature differs from that of the bulk material. The new theory predicts the onset temperature of premelting on ice in quantitative agreement with recent experimental data. It also explains regelation of ice and explains why water reaches a density maximum above its freezing point.

    AB - The present theories of surface premelting are based on the assumed mechanism whereby a liquid layer is formed because the free energy of the surface is thus minimized. It is shown experimentally here that this mechanism is not possible in the case of ice, for which surface melting below 0 °C is, however, well documented. A mechanism of surface melting, unique for ice, is then proposed. It is based on a concept according to which the surface phase equilibrium temperature differs from that of the bulk material. The new theory predicts the onset temperature of premelting on ice in quantitative agreement with recent experimental data. It also explains regelation of ice and explains why water reaches a density maximum above its freezing point.

    U2 - 10.1021/jp963248c

    DO - 10.1021/jp963248c

    M3 - Article

    VL - 101

    SP - 6196

    EP - 6200

    JO - The Journal of Physical Chemistry B

    JF - The Journal of Physical Chemistry B

    SN - 1520-6106

    IS - 32

    ER -