Pattern morphology instabilities

Krug, H.-J., Brandstadte H., Jacob, K.H. (1996). Morphological instabilities in pattern formation by precipitation and crystallization processes. Geologische rundschau, 85,19-28. 

Furthermore, Shimada and Furukawa [28] measured simultaneously the radius and thickness of a circular disk using a Mach-Zehnder interferometer. They found that there are two types of disk growth before morphological instability of the disk shape. They also observed an asymmetric disk pattern with respect to the basal... 

From Holes to Drops to Toroids Conditions for the Transcription of Surface Patterns into Three-Dimensional Morphologies via Rim Instabilities in the Course of Dewetting... 

It has been described in previous chapters how spontaneous instabilities related to interfacial phenomena can be used to produce controlled patterns on polymer surfaces. Strategies of polymer patterning assisted by dewetting or water drop condensation were described. In this chapter we present a waterborne process based on the interaction between ions in water and hydrophobic polymer surfaces, modulated by the gases dissolved in the aqueous phase. We show how by controlling this interaction the polymer surface can be conveniently modified. In the first section of the chapter we describe some aspects of the interface between water and a hydrophobic surface. We then describe how the composition of the aqueous phase can have important consequences on the morphology of the hydrophobic surface, and then illustrate how this process can be conveniently used to modify the morphology of a hydrophobic polymer in a controlled manner. 

Conditions may lead to different morphologies during the bacterial growth. A nonlinear diffusion coefficient may cause the generation of patterns and long-wavelength instability. Consider a two-dimensional reaction—diffusion system for the bacterial density B r,t) with a nonlinear diffusion term and nutrient density N r,t) with a linear diffusion term... 

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