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Electrodeposition behavior of zinc–nickel–iron alloys from sulfate bath / Mortaga M. Abou-Krisha in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 3 (09/2009)
[article]
Titre : Electrodeposition behavior of zinc–nickel–iron alloys from sulfate bath Type de document : texte imprimé Auteurs : Mortaga M. Abou-Krisha, Auteur ; S. A. El-Naby, Auteur ; F. H. Assaf, Auteur Année de publication : 2009 Article en page(s) : p. 391-399 Note générale : Bibliogr. Langues : Américain (ame) Tags : Electrodeposition Phase structure Surface morphology Corrosion resistance Ternary Zn–Ni–Fe alloy Index. décimale : 667.9 Revêtements et enduits Résumé : The present work is directed at collecting the properties of Zn–Ni and Zn–Fe alloys in one alloy via the electrodeposition of Zn–Ni–Fe ternary alloy. Electrodeposition of ternary Zn–Ni–Fe alloy was investigated and compared with the characteristics of Zn–Ni electrodeposits. The electrodeposition was performed from a sulfate bath onto a steel substrate. Structural analysis by X-ray diffraction (XRD) method revealed that the Zn–Ni–Fe alloys consisted of a mixture of zinc, and (gamma-Ni2Zn11) and (Fe3Ni2) phases. The study was carried out using electrochemical methods such as cyclic voltammetry and galvanostatic for electrodeposition, while anodic linear polarization resistance and anodic linear sweeping voltammetry techniques were used for the corrosion study. Surface morphology and chemical composition of the deposits were also examined by using scanning electron microscopy and atomic absorption spectroscopy, respectively. It was found that the obtained Zn–Ni–Fe alloy exhibited more preferred surface appearance and better corrosion resistance without adding any organic brighteners to the plating bath in comparison to Zn–Ni alloy that electrodeposited at similar conditions. Results obtained revealed that the increase in corrosion resistance of ternary deposits is not only attributed to the formation of (gamma-Ni2Zn11) phase, but also to iron codeposition and formation of (Fe3Ni2) phase. DOI : 10.1007/s11998-008-9134-4 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9134-4.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6120
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 3 (09/2009) . - p. 391-399[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 011503 - Périodique Bibliothèque principale Documentaires Disponible Removal of tartrazine from aqueous solution by activated coal / M. Ishaq in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 47, N° 1/2010 (01-02/2010)
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Titre : Removal of tartrazine from aqueous solution by activated coal Type de document : texte imprimé Auteurs : M. Ishaq, Auteur ; K. Saeed, Auteur ; I. Ahmad, Auteur ; M. Shakirullah, Auteur ; S. Nadeem, Auteur Année de publication : 2010 Article en page(s) : p. 13-17 Note générale : Bibliogr. Langues : Anglais (eng) Tags : Tartrazine Coal Adsorption Morphology Scanning electron microscopy Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Removal of industrially important Tartrazine dye from aqueous solution was carried with virgin and variously activated coal samples at room temperature. The morphological study indicated that the number of coal particles was increased when the coal was evacuated at 200°C while aggregated form was observed at 400°C evacuation temperature. The coal particles were again formed at 600°C evacuation temperature. The coal, which was evacuated at 400°C, adsorbed less Tartrazine than the coal samples which were evacuated at 200 and 600°C. This might be caused by the aggregation of the coal particles at 400°C (because of the plastic range of coal swelling), which results in a decrease of the coal surface area. The obtained adsorption data were also fitted to Langmuir and Freundlich isotherms, which followed both Langmuir and Freundlich isotherms models. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=8064
in TENSIDE, SURFACTANTS, DETERGENTS > Vol. 47, N° 1/2010 (01-02/2010) . - p. 13-17[article]Réservation
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