We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Laser-Induced Superhydrophobic Ti-Ni Shape Memory Alloy with Corrosion Resistance and Self-Cleaning Properties.
- Authors
Tianchi Chen; Shirong Ge; Hongtao Liu
- Abstract
Owing to the unique water repellence and self-cleaning properties, superhydrophobic surface endows them with greatly enhanced anti-adhesion. Thus, a facile and controllable laser direct writing approach is employed to fabricate a superhydrophobic surface on a Titanium nickel (Ti-Ni) shape memory alloy substrate as barrier against blood lipid deposition. The wettability and morphology of the consequent superhydrophobic surface are characterized by contact angle (CA), scanning electron microscopy (SEM). The unique trench textures composed of fish scale-like microstructure on the bottom and micro/nano-particles on the ridge are successfully obtained by controllable laser fluence and scanning speed. After 1H, 1H, 2H, 2H-perfluorodecyltriisopropoxysilane modification, this unique trench textures surface shows excellent superhydrophobicity with calf serum contact angles (CA) of 156° and sliding angles (SA) less than 5°. Meanwhile, the surface shows oleophobicity with glycerol contact angles (CA) of 130° and sliding angles (SA) of 30°. The anticontamination and anticorrosion behaviors of the as-prepared superhydrophobic surface are investigated by self-cleaning test, potentiodynamic polarization. The potentiodynamic polarization results show that the as-prepared superhydrophobic surface can greatly enhance corrosion resistance, and the self-cleaning test results indicate that the as-prepared superhydrophobic surface is able to remove the dust under water flushing.
- Subjects
SUPERHYDROPHOBIC surfaces; SCANNING electron microscopy; NANOSTRUCTURED materials; MICROSTRUCTURE; MANUFACTURING processes
- Publication
Journal of Laser Micro / Nanoengineering, 2017, Vol 12, Issue 3, p212
- ISSN
1880-0688
- Publication type
Article
- DOI
10.2961/jlmn.2017.03.0007