Electrochemical synthesis of a biomedically important Co–Cr alloy / D.J.S. Hyslop in Acta materialia, Vol. 58 N° 8 (Mai 2010)  

Public ISBD [article]  inActa materialia > Vol. 58 N° 8 (Mai 2010) . - pp. 3124–3130 Titre : Electrochemical synthesis of a biomedically important Co–Cr alloy Type de document : texte imprimé Auteurs : D.J.S. Hyslop, Auteur ; A. M. Abdelkader, Auteur Année de publication : 2011 Article en page(s) : pp. 3124–3130 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Electro-deoxidation FFC-Cambridge Process Co–Cr Résumé : Co–30 wt.% Cr alloy was prepared by electro-deoxidation in molten calcium chloride at 1123 K. A preliminary study was conducted into the preparation of the mixture of the Co3O4 and Cr2O3 and the formation of the non-stoichiometric, spinel structured, mixed oxide nominally labeled CoxCryO4. Constant voltage chronoamperometry was used both to prepare the alloy and to investigate its mechanism of formation. Electro-deoxidation proceeds by the simultaneous rapid reduction of CoO to Co and the slower reduction/substitution of CoxCryO4 to CaCr2O4 and Co metal. The final step of the electro-deoxidation is the reduction of CaCr2O4 to Cr metal, which alloys with the Co metal, and release of Ca2+ back into the electrolyte. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645410000832 [article] Electrochemical synthesis of a biomedically important Co–Cr alloy [texte imprimé] / D.J.S. Hyslop, Auteur ; A. M. Abdelkader, Auteur . - 2011 . - pp. 3124–3130. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 8 (Mai 2010) . - pp. 3124–3130 Mots-clés : Electro-deoxidation FFC-Cambridge Process Co–Cr Résumé : Co–30 wt.% Cr alloy was prepared by electro-deoxidation in molten calcium chloride at 1123 K. A preliminary study was conducted into the preparation of the mixture of the Co3O4 and Cr2O3 and the formation of the non-stoichiometric, spinel structured, mixed oxide nominally labeled CoxCryO4. Constant voltage chronoamperometry was used both to prepare the alloy and to investigate its mechanism of formation. Electro-deoxidation proceeds by the simultaneous rapid reduction of CoO to Co and the slower reduction/substitution of CoxCryO4 to CaCr2O4 and Co metal. The final step of the electro-deoxidation is the reduction of CaCr2O4 to Cr metal, which alloys with the Co metal, and release of Ca2+ back into the electrolyte. DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645410000832

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité
aucun exemplaire