Intergranular liquid in solids and premelting of ice

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Journal titleThe Journal of Chemical Physics
Pages45484553; # of pages: 6
Subjectice; premelting of solids; high temperature materials; integranular liquid
AbstractThat the equilibrium state of impurity-free polycrystalline ice contains water has been expressed in terms of free-energy changes, and further developed to show that liquid in cavities formed at grain junctions in a microcrystalline solid containing no impurities affects its electrical properties and increases its heat capacity. General formulas for the volume of a liquid contained in the pockets formed at four-grain junctions and veins formed at three-grain junctions in equilibrium in an impurity-free polycrystalline mass are given. The variation of the volume fraction of intergranular water in impurity-free ice and the ice's total free energy have been calculated for different grain sizes and temperatures. Calculations also confirm that intergranular water or premelting contributes significantly to the pure ice's heat capacity.
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AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedYes
NRC number5461
NPARC number8895789
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Record identifierb753e5ec-39d1-44b0-bd3c-4d26125e270b
Record created2009-04-22
Record modified2017-03-23
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