Surface evaluation and electrochemical behaviour of doped silane pre-treatments on galvanised steel substrates |
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| Authors: | W. Trabelsi,P. Cecí lio,M.G.S. Ferreira,K. Yasakau,M.L. Zheludkevich,M.F. Montemor |
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| Affiliation: | 1. ENIT, Campus Universitaire, BP 37, Le Belvédere Unité de Recherche de Corrosion, Tunes, Tunisia;2. Instituto Superior Técnico, ICEMS, DEQ, Av. Rovisco Pais 1049-001 Lisboa, Portugal;3. University of Aveiro, Department of Ceramic and Glass Engineering, Campus de Santiago 3810-193 Aveiro, Portugal |
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| Abstract: | The present work aims at evaluating the surface morphology and the corrosion resistance of galvanised steel substrates pre-treated with bis-[triethoxysilylpropyl] tetrasulfide silane (BTESPT) solutions doped with cerium nitrate or zirconium nitrate. The silane pre-treatment leads to the formation of a silane coating in the metallic surface. The surface morphology of this coating was studied by atomic force microscopy (AFM) and scanning electron microscopy (SEM). |
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| Keywords: | Silanes Pre-treatment AFM SEM EIS Cerium Zirconium Dopant |
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