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research-article

Laser nanopatterning for wettability applications

[+] Author and Article Information
Leonardo Orazi

Department of Sciences and Methods for Engineering University of Modena and Reggio Emilia Via Amendola 2, 42121 Reggio Emilia, Italy
leonardo.orazi@unimore.it

Iaroslav Gnilitskyi

Department of Sciences and Methods for Engineering University of Modena and Reggio Emilia Via Amendola 2, 42121 Reggio Emilia, Italy
iaroslav.gnilitskyi@unimore.it

Ana Paula Serro

Instituto Superior Tecnico, Structural Chemistry Centre, Av. Rovisco Pais, 1049-001 Lisbon, PortugalInstituto Superior de Ciencias da Saude Egas Moniz, Centro de Investigacao Interdisciplinar Egas Moniz, Campus Universitrio, Quinta da Granja, Monte da Caparica, 2829-511 Caparica, Portugal
anapaula.serro@tecnico.ulisboa.pt

1Corresponding author.

ASME doi:10.1115/1.4035956 History: Received November 24, 2016; Revised February 01, 2017

Abstract

We report on periodic, homogenous nanoripples fabricated on stainless steel (SS), copper (Cu) and aluminum (Al) substrates using an ytterbium pulsed femtosecond laser. These structures called Laser Induced Periodic Surface Structures (LIPSS) are processed at a relatively high-speed and over large areas. This paper investigates the effect of LIPSS on wettability behavior of SS, Cu and Al surfaces. It is shown that nanoripples significantly influenced the wettability character of these metals turning them from hydrophilic to hydrophobic behavior.

Copyright (c) 2017 by ASME
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