Laser texturing of materials and surface hydrophobicity

B. S. Yilbas*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

In the present study, laser surface texturing of polycarbonate sheet, alumina tile, and phosphorous bronze coupons are presented. The laser-treated layer characteristics, including surface morphology and hydrophobicity, treated layer metallurgy, microhardness, and residual stress formed are assessed using the analytical tools. The findings revealed that all the substrate materials considered are free from surface asperities and defect sites, such as large cavities and micro-cracks, after the laser treatment process. Laser texturing forms micro-/nano-poles at the surface. The use of high-pressure nitrogen assisting gas causes nitride species formation at the surface while lowering the surface energy. Micro-/nano-size texture and low surface energy significantly improves the hydrophobicity of the laser-textured surface. The residual stress determined is compressive and less than the yielding limit of the substrate materials textured.

Original languageEnglish
Title of host publicationSurface Coating Processes
PublisherElsevier Inc.
Pages71-85
Number of pages15
Volume3-3
ISBN (Electronic)9780128032503
ISBN (Print)9780128032497
DOIs
StatePublished - 2017

Bibliographical note

Publisher Copyright:
© 2017 Elsevier Inc. All rights reserved.

Keywords

  • Ablation
  • Laser texturing
  • Micro/nano texture
  • Residual stress
  • Surface hydrophobicity

ASJC Scopus subject areas

  • General Engineering
  • General Materials Science

Fingerprint

Dive into the research topics of 'Laser texturing of materials and surface hydrophobicity'. Together they form a unique fingerprint.

Cite this