@article {2007,
	title = {A new model for contact angle hysteresis},
	number = {SISSA;37/2006/M},
	year = {2007},
	abstract = {We present a model which explains several experimental observations relating contact angle hysteresis with surface roughness. The model is based on the balance between released energy and dissipation, and it describes the stick-slip behavior of drops on a rough surface using ideas similar to those employed in dry friction, elasto-plasticity and fracture mechanics. The main results of our analysis are formulas giving the interval of stable contact angles as a function of the surface roughness. These formulas show that the difference between advancing and receding angles is much larger for a drop in complete contact with the substrate (Wenzel drop) than for one whose cavities are filled with air (Cassie-Baxter drop). This fact is used as the key tool to interpret the experimental evidence.},
	url = {http://hdl.handle.net/1963/1848},
	author = {Antonio DeSimone and Natalie Gruenewald and Felix Otto}
}
