Ostwald growth laws

Cases of varying dihedral angle and lai e quantities of liqviid phase treated annalogously to Ostwald ripening have been described quanta-tively [81] to follow this cubic growth law. 

However, Ostwald s law of stages is not universally valid because the appearance and evolution of solid phases are determined by the kinetics of nucleation and growth under the specific experimental conditions (Bernstein et ak, 1999 Davey et ak, 1997 Threlfall, 2000) and by the link between molecular assemblies and crystal structure (Davey et ak, 2002 Blagden et ak, 1998 Gu et ak, 2001). 

Therefore, all the theories indicate that the NGG in polycrystaUine solids can be treated as the Ostwald ripening governed by the interface reaction mechanism. However, in practice, the grain growth data cannot be always described by the parabolic law, so that a general grain growth equation is used ... 

The phase separation of blends of PP and EP copolymer was also studied by Mirabella [10]. He followed the morphology of blends with EP as the minor component ( 17%) by electron microscopy and also saw the same power law measxned by Inaba et al. [9]. He showed that this was in good agreement with the predictions of an Ostwald ripening mechanism. The magnitude of the domain growth rate was consistent with the value of X,2 that can be inferred from the SANS work. 

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