Nanoporous surfaces via impact of molten metallic droplets

Abstract:

Here we describe a new pathway for the production of nanoporous surfaces, by recourse to molten droplet impact and solidification. The nanopores in this case are frozen in bubbles that nucleate in the melt due to gas supersaturation within 100 nanoseconds of impact. Initial observations and previous analysis are presented, as well as ongoing work to control or pattern porosity via process variation and substrate pre-treatment. This method is presumably not limited in material, and has potential to create large area, functional surfaces. © 2009 Springer-Verlag.

Año de publicación:

2009

Keywords:

Fuente:

scopus

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