Atomic transport mechanisms in thin oxide films grown on zirconium by thermal oxidation, as-derived from 18O-tracer experiments / G. Bakradze in Acta materialia, Vol. 59 N° 20 (Décembre 2011)  

Public ISBD [article]  inActa materialia > Vol. 59 N° 20 (Décembre 2011) . - pp. 7498–7507 Titre : Atomic transport mechanisms in thin oxide films grown on zirconium by thermal oxidation, as-derived from 18O-tracer experiments Type de document : texte imprimé Auteurs : G. Bakradze, Auteur ; L.P.H. Jeurgens, Auteur ; T. Acartürk, Auteur Année de publication : 2012 Article en page(s) : pp. 7498–7507 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Oxidation Mechanism Nanocrystalline films Zirconium Time-of-flight secondary ion mass-spectrometry Résumé : Two-stage oxidation experiments using 16O and 18O isotopes were performed to reveal the governing atomic transport mechanism(s) in thin (thickness ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645411006124 [article] Atomic transport mechanisms in thin oxide films grown on zirconium by thermal oxidation, as-derived from 18O-tracer experiments [texte imprimé] / G. Bakradze, Auteur ; L.P.H. Jeurgens, Auteur ; T. Acartürk, Auteur . - 2012 . - pp. 7498–7507. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 59 N° 20 (Décembre 2011) . - pp. 7498–7507 Mots-clés : Oxidation Mechanism Nanocrystalline films Zirconium Time-of-flight secondary ion mass-spectrometry Résumé : Two-stage oxidation experiments using 16O and 18O isotopes were performed to reveal the governing atomic transport mechanism(s) in thin (thickness ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645411006124

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Interface thermodynamics of ultra-thin, amorphous oxide overgrowths on AlMg alloys / E. Panda in Acta materialia, Vol. 58 N° 5 (Mars 2010)  

Public ISBD [article]  inActa materialia > Vol. 58 N° 5 (Mars 2010) . - pp. 1770–1781 Titre : Interface thermodynamics of ultra-thin, amorphous oxide overgrowths on AlMg alloys Type de document : texte imprimé Auteurs : E. Panda, Auteur ; L.P.H. Jeurgens, Auteur ; E. J. Mittemeijer, Auteur Année de publication : 2011 Article en page(s) : pp. 1770–1781 Note générale : Métallurgie Langues : Anglais (eng) Mots-clés : Interface energy Thermodynamics Alloy oxidation Amorphous oxides Ultra-thin oxide films Résumé : A thermodynamic model has been presented for the prediction of the type of initial, amorphous oxide overgrowth (i.e. am-Al2O3, am-MgO or am-MgAl2O4) on bare AlMg substrates as a function of the Mg alloying element content at the substrate/oxide interface, the growth temperature and the oxide-film thickness (up to 5 nm). On the basis of the macroscopic atom approach, expressions have been derived for the estimation of the energies of the interfaces between the AlMg substrate and the competing am-Al2O3, am-MgO and am-MgAl2O4 overgrowths. For all cases a strong driving force has been revealed for the interfacial (chemical) segregation of Mg. am-Al2O3 was found to be the most stable amorphous oxide phase on the AlMg substrate for T DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645409007988 [article] Interface thermodynamics of ultra-thin, amorphous oxide overgrowths on AlMg alloys [texte imprimé] / E. Panda, Auteur ; L.P.H. Jeurgens, Auteur ; E. J. Mittemeijer, Auteur . - 2011 . - pp. 1770–1781. Métallurgie Langues : Anglais (eng) in Acta materialia > Vol. 58 N° 5 (Mars 2010) . - pp. 1770–1781 Mots-clés : Interface energy Thermodynamics Alloy oxidation Amorphous oxides Ultra-thin oxide films Résumé : A thermodynamic model has been presented for the prediction of the type of initial, amorphous oxide overgrowth (i.e. am-Al2O3, am-MgO or am-MgAl2O4) on bare AlMg substrates as a function of the Mg alloying element content at the substrate/oxide interface, the growth temperature and the oxide-film thickness (up to 5 nm). On the basis of the macroscopic atom approach, expressions have been derived for the estimation of the energies of the interfaces between the AlMg substrate and the competing am-Al2O3, am-MgO and am-MgAl2O4 overgrowths. For all cases a strong driving force has been revealed for the interfacial (chemical) segregation of Mg. am-Al2O3 was found to be the most stable amorphous oxide phase on the AlMg substrate for T DEWEY : 669 ISSN : 1359-6454 En ligne : http://www.sciencedirect.com/science/article/pii/S1359645409007988

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