Experimental Determination of /Ψ Tilt Grain Boundary Energies in Ice

E. Druetta, O. B. Nasello, Carlos L. Di Prinzio


Ice grain boundary energies rgb relative to the free surface energy were determined by studying the topographic details revealed by plastic replicas of the ice grain boundary groove-free surface with a Laser Confocal 3D Microscope. The samples analyzed were high purity ice bicrystals, with /? tilt grain boundaries, annealed at -18 oC. Values obtained of rgb/rs were analyzed using coincidence site lattice (CSL) theory. Significant correspondence was found between the rgb/rs values and the planar density ? of coincident sites on the interface plane. The results show that rgb/rs depends on the GB inclination and may be up to one order of magnitude different.

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DOI: https://doi.org/10.5539/jmsr.v3n1p69


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