Crystallographic mismatch nucleation induced fiber branching

Crystallographic Mismatch Nucleation Induced Fiber Branching 

1) Supersaturation. Similarly to normal nucleation and growth, the kinetics of crystallographic mismatch nucleation and growth also depends on supersaturation. At low supersaturations, the crystallographic mismatch nucleation is difficult to occur due to the high AG jjjjg (Equations 2.15 and 2.16). As supersaturation increases, AG jj jg will drop rapidly (Equation 2.16). It follows that interfacial mismatch nucleation can occur much more easily in this case. 

2) Impurities. Adsorbed impurities may disturb the interfacial structural match between nucleating layers and the parent crystal surfaces. This gives rise to the lowering of m, which promotes crystallographic mismatch nucleation. 

This will trigger the crystallographic mismatch nucleation at the tips. 

In the following sections, we will present the fiber network formation through branching at different orientations of fibers, that is, at the growing fiber tips and side surface of fibers. 

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Crystallographic Mismatch Nucleation Induced Fiber Branching... 

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See also in sourсe #XX -- [ , ]

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