Abstract
By means of differential scanning calorimetry (DSC), the precipitation process from a supersaturated solid solution of Cu–0.65 at.% Co–0.33 at.% Si (Cu–1 at.% Co 2Si) was investigated. On the basis of enthalpimetric calculations, it was found that the decomposition begins with cobalt precipitation. The clustering of atoms of cobalt initiates the precipitation of silicon, and particles of the stoichiometric Co 2Si composition are finally formed. Kinetic parameters were obtained by a convolution method based on the Mehl–Johnson–Avrami formalism. Their values are all in agreement with the experimental observed behavior displayed by the DSC traces.
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