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Improving the protective properties of La-conversion coating on α-brass surface by the combined use of La2O3 nanoparticles incorporation and electrodeposition / H. Q. Fan in Materials and corrosion, Vol. 62 N° 12 (Décembre 2011) 

Public ISBD [article]  in Materials and corrosion > Vol. 62 N° 12 (Décembre 2011) . - pp. 1133–1140 Titre : Improving the protective properties of La-conversion coating on α-brass surface by the combined use of La2O3 nanoparticles incorporation and electrodeposition Type de document : texte imprimé Auteurs : H. Q. Fan, Auteur ; S. Y. Li, Auteur ; Z. C. Zhao, Auteur Année de publication : 2012 Article en page(s) : pp. 1133–1140 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Brass  Conversion  coating  Electrodeposition  Lanthanum  Nanoparticles Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : The La2O3 nanoparticles incorporation and electrodeposition were used together to prepare the La-conversion coatings on α-brass surface in a basal solution containing rare earth salt. The results showed that both techniques can improve the protective properties of coatings. A ‘critical nano-La2O3 content’ and a ‘critical deposition potential’ were observed, under which the conversion coatings had the highest protective properties. Increased electrodeposition time improve the quality of conversion coatings. The La-conversion coatings could provide important protection against α-brass corrosion for considerable immersion periods in 3.5 wt% sodium chloride solution because it ennobled the corrosion potential and decreased the anodic current. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201106231/abstract [article] Improving the protective properties of La-conversion coating on α-brass surface by the combined use of La2O3 nanoparticles incorporation and electrodeposition [texte imprimé] / H. Q. Fan, Auteur ; S. Y. Li, Auteur ; Z. C. Zhao, Auteur . - 2012 . - pp. 1133–1140. Génie Mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 62 N° 12 (Décembre 2011) . - pp. 1133–1140 Mots-clés : Brass  Conversion  coating  Electrodeposition  Lanthanum  Nanoparticles Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : The La2O3 nanoparticles incorporation and electrodeposition were used together to prepare the La-conversion coatings on α-brass surface in a basal solution containing rare earth salt. The results showed that both techniques can improve the protective properties of coatings. A ‘critical nano-La2O3 content’ and a ‘critical deposition potential’ were observed, under which the conversion coatings had the highest protective properties. Increased electrodeposition time improve the quality of conversion coatings. The La-conversion coatings could provide important protection against α-brass corrosion for considerable immersion periods in 3.5 wt% sodium chloride solution because it ennobled the corrosion potential and decreased the anodic current. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201106231/abstract