• V Surender

      Articles written in Bulletin of Materials Science

    • Growth and habit modification of sodium chlorate crystals

      V Surender K Kishan Rao

      More Details Abstract Fulltext PDF

      Single crystals of sodium chlorate were grown in the presence of selective impurities. The morphology of these crystals changed completely from cubic to tetrahedral form. Experiments were performed in the presence of different concentrations of impurities to ascertain their role in modifying the habit of these crystals. The presence of impurity in the solution was found to affect the habit of the crystals, although it does not appear to enter into the lattice.

    • Growth mechanism of NaBrO3 crystals from aqueous solutions

      V Surender K Kishan Rao

      More Details Abstract Fulltext PDF

      To study the growth mechanism of {111} faces of NaBrO3, crystals were grown at different supersaturations ranging from 2% to 8%. The growth mechanisms were investigated based on the growth rate versus supersaturation relation and from the surface features observed on {111} faces. The growth mechanism of these crystals appear to be due to 2D nucleation. The growth rate curve has been further investigated using Ohara and Reid equations. Polynucleation model in two-dimensional nucleation growth theory is suggested as the most possible growth mechanism for these crystals in the present supersaturation range.

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