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Tailoring metallic-organic interfaces

PhD student: Enne Faber
PostDoc: Dr.ir. Willem Pier Vellinga
Metal-polymer laminates of electrolytic chromium coated steel plate are increasingly used for packaging of food and beverages. From a materials point-of-view there are a number of challenges since the polymer coated sheet is subjected to severe loading conditions during forming, e.g. deep-drawing and wall ironing (DWI). Damage is introduced during production, but also during the subsequent content sterilization procedure and it is obvious that this damage may become apparent during the prolonged shelf-life of the product. The main objective of this project is to improve product reliability using insight in micro-scale deformation mechanisms at the polymer-steel interface and the interplay between micro-deformation and de-adhesion. The microstructural evolution near the interface and its interrelation with the evolution of the interface geometry and interface bonding is key to understand and model the behaviour of the laminates. This project aims to clarify the microscopic processes that determine polymer-metal adhesion during forming. Deformation and delamination processes on multiple scales will be studied numerically and experimentally in a concerted action between Eindhoven University of Technology (TU/e –Dr. P. Schreurs, Prof. M. Geers) and University of Groningen.