Abstract

OLAYA F, Jhon J  and  HERNANDEZ, Wilson. Production and corrosion resistance of Niobium Nitride-Niobium multilayers films using EIS. Rev. LatinAm. Metal. Mater. [online]. 2015, vol.35, n.2, pp.213-221. ISSN 0255-6952.

Through this research will evaluate the corrosion resistance of the NbN/Nb nanometric multilayers produced by unbalanced magnetron sputtering. The coatings were deposited upon steel AISI 304 and silicon (100) varied the bilayer period between 15 and 500 nm. The corrosion resistance was established trough electrochemical impedance spectroscopy (EIS) using a 3% NaCl solution. These results are complemented by structural characterization techniques such as X-ray diffraction and scanning electron microscopy. The multilayers with lower bilayer period shown the best corrosion resistance than the substrate and the corrosion mechanism is discussed in this research.

Keywords : multilayers; niobium nitride; impedance.

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