Sink electrical discharge machining of hydrophobic surfaces |
| |
Authors: | Changcheng Guo Philip Koshy Felipe Coelho P Ravi Selvaganapathy |
| |
Affiliation: | 1. Department of Mechanical Engineering, McMaster University, Hamilton, Canada;2. Department of Mechanical Engineering, Sao Paulo State University, Bauru, Brazil |
| |
Abstract: | The phenomenon of hydrophobicity observed in such surfaces as lotus leaves is typically manifest by hierarchical structures on low-energy surfaces. Sustained interest in fabricating hydrophobic surfaces has resulted in a myriad of processes, which are but limited by their largely referring to soft materials and/or involving multiple process steps. The present work explored the application of electrical discharge machining (EDM) for the single-step manufacture of durable, metallic hydrophobic surfaces. Simple sink EDM in a hydrocarbon dielectric, with no special process kinematic or tooling requirements, is demonstrated to rapidly generate surfaces that are intrinsically water repellent, with contact angles approaching 150°. |
| |
Keywords: | Corresponding author Material removal Texture Topography |
本文献已被 ScienceDirect 等数据库收录! |
|