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Enhancement of Corrosion Resistance Properties of Electrodeposited Ni/nano-TiC Composite Layers KU Leuven
This paper presents novel results on the effects of the dispersion of titanium carbide nanoparticles (50 nm mean diameter) into a nickel-plating electrolyte on the corrosion behavior of the nanocomposite layers obtained. The Ni/nano-TiC layers are compared with pure nickel layers obtained at the same electrodeposition parameters with 60 mA·cm-2 current density and 10 min deposition time. The comparative corrosion performances are investigated ...
High performance accelerated tests to evaluate hard Cr replacements for hydraulic cylinders KU Leuven
To prolong the lifetime of hydraulic cylinders, a wear-resistant low-friction surface is required. Until now, hard Cr coatings were the best materials for this. However, in recent years, there has been an increasing pressure on the manufacturing of hard Cr plating and plated products, because of environmental and health hazards. The replacement of these coatings by alternatives has not been highly successful yet, because it requires extensive ...
Electro-codeposition of CeO₂ nanoparticles into cobalt matrix to improve the tribocorrosion performances of Co/nano CeO₂ composite layers in biological solution for medical applications KU Leuven
Co/nano-CeO₂ composite layers were developed by electro-codeposition method from a cobalt electrolyte containing dispersed CeO₂ nanoparticles. The tribocorrosion performances of both Co/nano-CeO₂ and pure Co layers were comparatively investigated by sliding friction tests under lubricated condition in biological Hank solution. The effect of embedded nano-CeO₂ on the corrosion electrochemical response, friction coefficient and wear loss volume is ...
Anticorrosion performance of the electrochemically grown mixed porous oxide films on titanium alloy in biological solution KU Leuven
A thin porous mixed layer of TiO2–ZrO2 was grown on titanium–zirconium alloy surface by electrochemical oxidation. Further comparison of the corrosion behavior in Fusayama–Meyer biological solution was performed. Scanning electron microscopy surface morphology investigations confirm the presence of porous oxide film, while energy-dispersive X-ray spectroscopy analyses provide a high amount of oxygen element in the porous film and a higher amount ...
Synthesis, characterization and tribological behavior of electrodeposited nanostructured Co-23 wt.% Sn coatings KU Leuven
© 2019 Elsevier B.V. Nowadays thin layers are extensively applied in a variety of technological and industrial applications, which can range from microelectronics up to transportation field. In these diverse applications, thin layers should operate under different tribological contact conditions. In this work, nanostructured Co– 23 wt.% Sn alloy electrocoatings were developed as replacements to hard chrome. However, in order to explore the ...
Reactivity of porous titanium oxide film and chitosan layer electrochemically formed on Ti-6Al-4V alloy in biological solution KU Leuven
Uniform porous TiO2 film on Ti-6Al-4V alloy was obtained by hard anodic oxidation and successfully the chitosan layer was electrodeposited. Surface morphology, compositional properties and diffraction patterns were analyzed by scanning electron microscopy with energy dispersive X-ray analysis system and X-ray diffraction. The reactivity of anodic porous TiO2 film in the presence or absence of chitosan layer was investigated by electrochemical ...
Thermal wear sensing system: Proof of the concept KU Leuven
A technique for wear sensing using a sacrificial layer with specific material properties has been developed successfully. This is achieved by recording the temperature evolution underneath the sacrificial organic layer during sliding tests, and by correlating the recorded temperature with a wear depth. Finite element modeling was used to calculate the contact temperature which spreads through the sacrificial layer under different sliding test ...