The effect of dispersed carbon black nanoparticles in the electrolyte on the plasma electrolytic oxidation of aluminium under soft sparking regime is investigated. Increasing the concentration of particles reduces the breakdown voltage. It also makes the transition to soft sparking to occur earlier, which can favour a more homogeneous coating. Howe...
Incorporation of carbon-based nanoparticles into ceramic coatings during plasma electrolytic oxidation (PEO) is promising for the synthesis of new composite layers on lightweight metals. Specifically, the present study focuses on the incorporation of carbon black (CB) nanoparticles into PEO alumina layers. For this purpose, PEO of aluminium is perf...
Published in Practical Metallography
High strength and low density materials are needed to achieve lightweight design of components. Aluminum base metals alloyed with calcium are of potential interest because of the low density of calcium and its abundance. The additive manufacturing of dense and crack free samples out of an Al-10 wt.% Ca (Al-10Ca) alloy is presented. Both laser-based...
The use of aluminium alloys in armour plating of land and sea based combat vehicles can reduce the overall weight of the vehicles and improve manoeuvrability. Aluminium alloys from the 7xxx series (Al-Zn-Mg-Cu) and the 5xxx series (Al-Mg) are most commonly used. Of these, the 5xxx series present an attractive combination of properties including wel...
The circular potential of existing aluminium curtain wall facades is investigated in this study. The focus is primarily on reuse, refurbishment and re-manufacturing, aiming to raise the value of materials that have not yet reached the end of their service life. The increasing concern about resource depletion, damage to the ecosphere and the need fo...
Fluorine‐18 (18F) is the most favorable positron emitter for radiolabeling Positron Emission Tomography (PET) probes. However, conventional 18F labeling through covalent C‐F bond formation is challenging, involving multiple steps and stringent conditions unsuitable for sensitive biomolecular probes whose integrity may be altered. Over the past deca...
[ES] El objetivo principal de este trabajo de fin de grado consiste en el análisis de la fractura de uno de los álabes de un compresor de un turbogrupo. Los turbogrupos resultan de vital importancia en muchos vehículos con motores alternativos como podría ser el caso de aviones de pequeño tamaño propulsados por hélices. La fiabilidad de este compon...
A combined electrochemical impedance spectroscopy (EIS) and X-ray photoelectron spectroscopy (XPS) approach showed that the corrosion behaviour of 5083 Al alloy was controlled by Mg dissolution at the Mg-rich intermetallic coarse particles (IMCs) that were defects of the passive film. It was thus shown that microstructures with high amount of Mg-ri...
Published in ChemPlusChem
Phosphaalumenes are the heavier isoelectronic analogs of alkynes and have eluded facile synthesis until recently. We have reported that the combination of a phosphinidene transfer agent, Ar TerP(PMe3 ) (Ar Ter=2,6-Ar2 -C6 H3 ), with (Cp*Al)4 (Cp*=C5 (CH3 )5 ) afforded the phosphaalumenes Ar TerPAlCp* as isolable, violet, thermally stable compounds....
Cathodic protection is widely used to protect metal structures from corrosion in marine environments using sacrificial galvanic anodes. These anodes, either in Zinc, or preferentially nowadays in Al-Zn-In alloys, are expected to corrode instead of the metal structures. This leads to the release of dissolved species, Zn2+, Al3+, and In3+, and solid ...
