Titanium Plasma-Sprayed Coatings on Polymers for Hard Tissue Applications

Abstract

The paper presents the results of titanium plasma spraying (TPS) on polymer substrates. Polyethylene (PE300), polyamide PA6, and fiber glass-reinforced polyamide (PA6.6-GF30) were used as substrates. The PE300 and PA6.6-GF30 substrates exhibited appropriate behavior during the TPS process, whereas the PA6 substrate did not “accept” Ti during plasma spraying, and the coating did not form. The TPS coatings exhibited low porosity and high homogeneity, and they had a typical multilayer structure composed of Ti and its oxides. The nanoindentation test showed good mechanical properties of the coatings and demonstrated a hardness and a Young’s modulus of approximately 400 HV and 200 GPa, respectively. The bending test confirmed the good adhesion of the titanium coatings to the polymer substrates. The Ti coatings did not fall off the substrate after its significant bending deformation.

Improvements of Arboblend V2 Nature Characteristics through Depositing Thin Ceramic Layers

“…The thermal coating process finds its applicability in areas such as the automotive, aerospace and naval industries in order to improve the corrosion resistance, wear resistance and lifetime of the equipment part as follows: thermal barrier coatings for components that operate in severe thermal conditions (turbine blades, fuel parts, vanes) with the role of increasing their life by improving resistance to oxidation, heat and corrosion [1]; hard metal coatings such as tungsten and chromium carbide are commonly used to increase the wear and corrosion resistance of the parts surfaces [2]; corrosion resistance after heat treatment of a Cr 3 C 2 -NiCr coating showed significant improvement due to both the microstructural changes and the presence of a metallurgical bond at the coating-substrate interface [3]; titanium plasma spraying (TPS) used on polymers as polyethylene/polyamide highlighted good mechanical properties and increased hardness [4].…”

Atmospheric Plasma Spraying of Al2O3 + 13% TiO2 Coatings Using External and Internal Injection System

“…This branch develops very dynamically since 40 years and it is a result of improving techniques, equipment and understanding the processes [1][2][3][4]. In thermal spraying coatings are manufactured by introducing feedstock material into a flame [5], arc [6] or plasma jet [7] and then are melted of only heat and accelerated towards the substrate. The coatings growth is continuously layer by layer.…”

Plasma and Polymers: Recent Progress and Trends

“…The scheme of the experimental setup is illustrated in Figure 14. Plasma was also successfully used for the fabrication of other types of composites and multi-layer structures such as polymer/ZnO composites [96], calcium phosphate layers on thermally sensitive polymers [97], fibers for polymer composites [98], and titanium coatings on polymers [99].…”