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Thermodynamics and kinetic theory of nucleation and the evolution of liquid precipitates in gallium arsenide wafer
 
We study nucleation and evolution of liquid droplets in semi-insulating solid gallium arsenide (GaAs). For a realistic modelling, the crucial issue of a combined thermodynamic and kinetic treatment is the coupling of diffusion, chemical reactions and interface motion with local inhomogeneous mechanical stress fields in the solid matrix. In this note we present a hierarchy of models on various space scales. With more detail we discuss a kinetic model for the Becker–Döring regime and a thermodynamic model to describe diffusion in the vicinity of a single droplet.
 
Fig. 1. Hierarchy of various thermodynamic and kinetic models for the description of the nucleation and evolution of liquid droplets in solid GaAs.
 
Source:Journal of Crystal Growth
 
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