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Exploiting Microscale Roughness on Hierarchical Superhydrophobic Copper Surfaces for Enhanced Dropwise Condensation
Author(s) -
Chen Xuemei,
Weibel Justin A.,
Garimella Suresh V.
Publication year - 2015
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201400480
Subject(s) - microscale chemistry , materials science , nucleation , copper , nanotechnology , condensation , surface roughness , surface finish , nanostructure , yield (engineering) , chemical engineering , composite material , metallurgy , thermodynamics , organic chemistry , chemistry , mathematics education , mathematics , physics , engineering
Hierarchical micro/nanostructured superhydrophobic surfaces are developed to control the nucleation, growth, and departure of condensate droplets on copper substrates. The microscale roughness elements on the hierarchical surface yield a 40% higher droplet growth rate and a 300% increase in cumulative droplet departure volume as compared to superhydrophobic surfaces with nanostructures alone.