Abstract
This article deals with the metastable liquid-liquid separation in the Cu-Co system. Several samples with different compositions were investigated by differential scanning calorimetry. High undercooling with respect to the liquidus was reached by means of the glass fluxing technique. The alloys were cycled with several heating and cooling runs in order to determine the temperature of the liquid-liquid separation and of the remixing. For each composition, demixing and remixing temperatures were found to be equal. Nucleation rate calculations of the liquid phase separation were carried out to explain the experimental results. The liquid-liquid separation in the Cu-Co system was found to be a nucleation process occurring with no detectable undercooling below the binodal line.
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Curiotto, S., Pryds, N.H., Johnson, E. et al. Liquid-liquid phase separation and remixing in the Cu-Co system. Metall Mater Trans A 37, 2361–2368 (2006). https://doi.org/10.1007/BF02586210
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DOI: https://doi.org/10.1007/BF02586210