Abstract
The laws of changing the presolidification supercooling of bismuth drops during continuous thermal cycling were studied by thermal analysis in the temperature–time coordinates. A sawtooth cyclic dependence of the supercooling on the sequence of heating and cooling cycles, which is described by a Fourier function, is detected. An expression is derived for the energy of coagulation of nuclei, and it is used to find a relation between the experimental and calculated supercoolings. The obtained results are interpreted in terms of a cluster-coagulation solidification model and the anomalous properties of bismuth in melting and solidification.
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Translated by K. Shakhlevich
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Aleksandrov, V.D., Zozulya, A.P., Frolova, S.A. et al. Cyclic Supercooling of Liquid Bismuth Drops during Solidification. Russ. Metall. 2019, 77–82 (2019). https://doi.org/10.1134/S0036029519010026
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DOI: https://doi.org/10.1134/S0036029519010026