0
research-article

Achieving Ultra-Omniphilic Wettability on Copper using a Facile, Scalable, Tuned Bulk Micro-manufacturing Approach

[+] Author and Article Information
Nicholas Clegg

Department of Mechanical and Aerospace Engineering, New Mexico State University 1040 S. Horseshoe St., Las Cruces, NM 88003-8001
nicholas1572@yahoo.com

Krishna Kota

Department of Mechanical and Aerospace Engineering, New Mexico State University 1040 S. Horseshoe St., Las Cruces, NM 88003-8001
kkota@nmsu.edu

Xin He

Department of Mechanical and Aerospace Engineering, New Mexico State University 1040 S. Horseshoe St., Las Cruces, NM 88003-8001
xinhe@mtu.edu

Sean Ross

Air Force Research Laboratory, Directed Energy Directorate 3550 Aberdeen Ave SE, Kirtland AFB, NM 87117
sean.ross.2@us.af.mil

1Corresponding author.

ASME doi:10.1115/1.4036446 History: Received September 03, 2016; Revised March 28, 2017

Abstract

Altering the wetting characteristics of copper will positively impact numerous practical applications. The contact angle (CA) of a water droplet on the polished copper surface is usually between 70° and 80°. This paper discusses a facile, scalable, tuned bulk micro-manufacturing approach for altering the surface topology of copper concomitantly at the micro- and nano- length scales, and thus significantly influence its wetting characteristics. The resultant copper surfaces were found to be robust, non-toxic, and exhibited ultra-omniphilicity to various industrial liquids. This extreme wetting ability akin to a paper towel (CA of zero for multiple liquids) was achieved by tuning the bulk micro-manufacturing process to generate connected hierarchical micro- and nano-roughness with nano-cavities within the embryos of micro-cavities. With an adsorbed coating of ester, the same ultra-omniphilic copper surfaces were found to exhibit robust super-hydrophobicity (CA ~ 152° for water).

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In