Nucleation in Systems with Limited Metastable Solubility

Nucleation in Systems with Limited Metastable Solubility 

Instead, the transversal mode is quite possible in this case and must take place as a simultaneous decomposition of inhomogeneous metastable alloys within the concentration ranges (c ,( ) and (C , C ) on each side of the interface. Some aspects of the problem, regarding the shape of the nudeus, are considered in Refs [18, 19, 23]. The shape of the nucleus, being an important factor of nudeation 

The thermodynamic approach in the prediction of the sequence of occurrence of the different phases was also used by Lee et al. [24], The authors have taken into account the change of the driving force due to the formation of a metastable solution. Still, they have disregarded the influence of concentration and chemical potential gradients on the driving force. 

Now we will make sure that the influence of a concentration gradient (or, more precisely, chemical potential gradients) appears to be important during nucleation in systems with limited metastable solubility, especially when at least one intermediate phase is already growing. It is quite reasonable that the gradient approach can furnish the clue to an understanding of the phenomena of sequential phase formation in this case. 

Nucleation of a Line Compound at the Interface During Interdiffusion 

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Nucleation in Systems with Limited Metastable Solubility I 81... 

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