A short-duration ultrasonic shot peening (USP) is used as a post-treatment to plasma electrolytic oxidation (PEO) coatings produced on a 2017 aluminium alloy under various sparking regimes (arc or soft) and time durations. USP is detrimental on PEO layers produced for short durations and under the arc regime because the typical pancake structure at...
Aluminium is one of the most widely used metals in the world, but its production is highly energy intensive and largely dependent on the use of fossil fuels. A typical secondary aluminium production facility consumes 700-1,000 kWh of natural gas and 200-400 kWh of electricity per tonne of rolled aluminium sheets. Thus, in order to meet its global e...
The aluminium sector relies on natural gas for the conversion of recycled scrap into new feedstock, which results in substantial atmospheric emissions. Hydric resources are also impacted, as they serve as heat sinks for the waste heat generated during the casting process. Other chemical industries are also responsible for a large production of wast...
The study of the link between the mechanical behaviour of metallic materials and the inspection of their microstructure is a particularly important subject of investigation. The plastic deformation of a commercial aluminium alloy AA5005 is analyzed in this work using mainly diametral compression tests and different experimental techniques of observ...
L'objectif de cette thèse est d'étudier les quantités d'aluminium auxquelles sont exposés les animaux domestiques et de rente au travers de la vaccination. Pour cela, les quantités d'aluminium dans chaque vaccin contenant un adjuvant à base d'aluminium sont établies et des calculs de doses cumulées sur la vie de l'animal sont réalisés. Les déclarat...
Published in Journal of Physics: Conference Series
The objective of this study is to produce metal matrix composites with aluminium as the matrix material and beryl as the reinforcing particles. Given the comparable density of beryl particles to Aluminum-based alloys, it is anticipated that enhancements in strength and ductility properties will lead to increased mechanical and tribological characte...
Societal changes drive the need for new energy storage systems. Forecasts consider that lithium-ion batteries will cease to meet the demand within the next decade. In this regard, the development of new battery technologies is mandatory. That is why, in this work, the aluminium battery system is explored. Investigations are performed on both the el...
L'urgence climatique exige une action immédiate pour lutter contre le réchauffement planétaire et ses conséquences dévastatrices. Cela implique de promouvoir activement les transports durables et les sources d'énergie propres afin de créer un avenir plus respectueux du climat. Il existe déjà de nombreuses sources d'énergie sans carbone. Cependant, ...
Le domaine de la Défense porte un fort intérêt à l’utilisation de particules d’aluminium dans les explosifs puisqu’elles constituent un vecteur supplémentaire d’énergie. Les particules d’aluminium sont chauffées par l’onde de détonation puis dispersées avec l’expansion des gaz et brûlent dans les produits de détonation et l’air au cours d’une phase...
Published in Chemistry, an Asian journal
Tethered N-heterocyclic carbenes (NHCs) are an emerging class of ligand, as they feature all the desirable aspects of NHCs (ease of synthesis, high tunabilty) but also enable metal-ligand cooperativity when combined with Lewis acidic metal centres due to the donor-acceptor nature of the complexes formed. Herein we report a simple ethoxy-tethered NH...
