Evaporatively driven morphological instability

Details Evaporatively driven morphological instability Evaporatively driven morphological instability

2012-01-12

arxiv.org/abs/1201.3312v1

Phys. Rev. E 76, 011602 (2007)

Physics

Condensed Matter

Statistical Mechanics

3 figures

Scientific paper

10.1103/PhysRevE.76.011602

Simple observations of evaporating solutions reveal a complex hierarchy of spatio-temporal instabilities. We analyze one such instability suggested by the qualitative observations of Du and Stone and find that it is driven by a novel variant of the classical {\em morphological instability} in alloy solidification. In the latter case a moving solid-liquid interface is accompanied by a solutally enriched boundary layer that is thermodynamically metastable due to {\em constitutional supercooling}. Here, we consider the evaporation of an impure film adjacent to a solid composed of the nonvolatile species. In this case, constitutional supercooling within the film is created by evaporation at the solution-vapor interface and this drives the corrugation of the solid--solution interface across the thickness of the film. The principal points of this simple theoretical study are to suggest an instability mechanism that is likely operative across a broad range of technological and natural systems and to focus future quantitative experimental searches.

Affiliated with

Also associated with

No associations

Rating

Evaporatively driven morphological instability does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Evaporatively driven morphological instability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evaporatively driven morphological instability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-153410