Nanostructured Superhydrophobic Titanium-Based Materials: A Novel Preparation Pathway to Attain Superhydrophobicity on TC4 Alloy

Abstract

This study develops the nanostructured superhydrophobic titanium-based materials using a combined preparation method of laser marking step and the subsequent anodizing step. The structural properties were determined using an X-ray diffractometer (XRD) and scanning electron microscope (SEM), while the performance was explored by wear and corrosion tests. The laser marking caused a rough surface with paralleled grooves and protrusions, revealing surface superhydrophobicity after organic modification. The anodizing process further created a titanium oxide (TiO2) nanotube film. Both phase constituent characterization and surface elemental analysis prove the uniform nanofilm. The inert nanosized oxide film offers improved stability and superhydrophobicity. Compared to those samples only with the laser marking process, the TiO2 nanotube film enhances the corrosion resistance and mechanical stability of surface superhydrophobicity. The proposed preparation pathway serves as a novel surface engineering technique to attain a nanostructured superhydrophobic surface with other desirable performance on titanium alloys, contributing to their scale-up applications in diverse fields.

Multilayer Mo2n-Ag/Sinx Films for Demanding Applications: Morphology, Structure and Temperature-Cycling Tribological Properties

“…This result confirms that a dual-phase of fcc-Mo 2 N and fcc-Ag co-exists in the Mo 2 N-Ag monolayer film. Soft metals, such as Ag and Cu, were widely incorporated into the hard nitride based films to induce the lubricant performance, and have been reported to be insoluble on the nitride matrix [56][57][58][59][60]. Excluding the substrate contribution (peaks at $34°and $70°assigned to silicon), no diffraction peak could be indexed to the monolithic SiN x layer.…”

Surface Structuring of the CP Titanium by Ultrafast Laser Pulses

“…Because of its usefulness, titanium and its alloys have been subjected to surface modification through various techniques to change their surface properties [7,8]. Surface structuring through laser irradiation of the titanium substrate modifies surface morphologies by creating multifunctional surfaces and changing a variety of material properties, including wetting [9][10][11], corrosion [4,12,13], tribological [14], antireflective [15], or bacterial adhesion qualities [16,17], among others. It is therefore important to conduct research to establish specific surface modifications of titanium and other materials for a specific application.…”