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Elaboration and characterization of thin solid films containing cerium

✍ Scribed by S. Hamdi; S. Guerfi; R. Siab

Publisher
Elsevier
Year
2009
Tongue
English
Weight
543 KB
Volume
2
Category
Article
ISSN
1875-3892

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✦ Synopsis

Cerium oxide films are widely studied as a promising alternative to Cr(VI) based pre-treatments for the corrosion protection of different metals and alloys. Cathodic electrodeposition of Cerium containing thin films was realised on TA6V substrates from a Ce(NO 3 ) 3, 6H 2 O and mixed water-ethyl alcohol solutions at 0.01 M. Experimental conditions to obtain homogeneous and crack free thin films were determined. The deposited cerium quantity appears proportional to the quantity of electricity used, as indicated by the Faraday law. Subsequent thermal treatment lead to a CeO 2 coating, expected to provide an increase of TA6V oxidation resistance at high temperatures. The deposits were characterized by differential scanning calorimetry (DSC), optical and scanning electron microscopies.

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