Cel Since it does not use any CMR or pollutant compounds, micro-arc oxidation (MAO) also known as plasma electrolytic oxidation (PEO) is a promising technique to replace conventional anodising processes such as chromic acid anodising or hard anodising to improve the mechanical and corrosion properties of valve metals such as aluminium or magnesium and their alloys.Though it has been known for many years, this technique is however still not well adapted to comply with the aeronautical requirements. In fact, one of the major challenge is to grow thin oxide layers (< 10 µm), which exhibit low roughness (Ra < 1 µm) and good thickness homogeneity, the latter being of prime importance when processing work pieces with complex shape.The present program aims at developing a particular technology of micro-arc processing of Al and Mg alloys in order to achieve MAO corrosion protective thin layers that comply with the aeronautical requirements while minimizing energy consumption.A detailed investigation of the process parameters and their influence on the grown ceramic layer will be coupled with the characterization of the layers regarding their microstructure and properties focusing on corrosion protection efficiency.Moreover using fast video imaging and time-resolved optical emission spectroscopy coupled with electrical measurements, a detailed study of the physics of the micro-discharges resulting from the dielectric breakdown will be carried out to shed light on the physico-chemical mechanisms that sustain the layer growth. It is thus expected to determine the response of the micro-discharges, and consequently of the ceramic layer characteristics, to a modification in the process parameters. The perfect knowledge of these mechanisms will then help controlling the process through the management of the micro-discharges.The work is planed to be performed by a consortium of two partners – one research institution, one supplier of micro-arc coatings – and organized around five work packages. It is intended that a part of the work will be subcontracted for investigating some process parameters unavailable within the partner's facilities. Dziedzina nauki natural scienceschemical scienceselectrochemistryelectrolysisnatural scienceschemical sciencesinorganic chemistryalkaline earth metalsnatural sciencesphysical sciencesopticsspectroscopyemission spectroscopyengineering and technologymaterials engineeringcoating and filmsengineering and technologymaterials engineeringceramics Program(-y) FP7-JTI - Specific Programme "Cooperation": Joint Technology Initiatives Temat(-y) JTI-CS-2010-1-ECO-01-003 - Development of Chromium free dense and thin micro-arc coatings for corrosion protection of light alloys (Al and Mg) Zaproszenie do składania wniosków SP1-JTI-CS-2010-01 Zobacz inne projekty w ramach tego zaproszenia System finansowania JTI-CS - Joint Technology Initiatives - Clean Sky Koordynator CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS Wkład UE € 141 570,00 Adres RUE MICHEL ANGE 3 75794 Paris Francja Zobacz na mapie Region Ile-de-France Ile-de-France Paris Rodzaj działalności Research Organisations Kontakt administracyjny Nathalie Appel (Ms.) Linki Kontakt z organizacją Opens in new window Strona internetowa Opens in new window Koszt całkowity Brak danych Uczestnicy (1) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko G.I.T. GALVANOPLASTIE INDUSTRIELLE TOULOUSAINE SA Francja Wkład UE € 150 105,00 Adres RUE JOSEPH MARIE JACQUARD 7 31270 CUGNAUX Zobacz na mapie Rodzaj działalności Private for-profit entities (excluding Higher or Secondary Education Establishments) Kontakt administracyjny Philippe Combes (Mr.) Linki Kontakt z organizacją Opens in new window Strona internetowa Opens in new window Koszt całkowity Brak danych
