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Analysis of oxygen-condensate interactions in metal powder production / Elisabetta Arato in Industrial & engineering chemistry research, Vol. 48 N° 7 (Avril 2009) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3649–3656 Titre : Analysis of oxygen-condensate interactions in metal powder production : sprayed particles in a carrier gas phase Type de document : texte imprimé Auteurs : Elisabetta Arato, Auteur ; Enrica Ricci, Auteur ; Paolo Costa, Auteur Année de publication : 2009 Article en page(s) : pp. 3649–3656 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Ssprayed  metal-carrier  gas  system  Droplet  surface  Liquid  steady  state  Phase  equilibrium  Interfacial  equilibrium Résumé : A preliminary, theoretical, analysis of the interfacial oxidization phenomena in a sprayed metal−carrier gas system was made to determine the initial conditions of the process which are compatible or not with surface saturation and the appearance of a separate oxide phase on the droplet surface. This discussion is based on previous theoretical and experimental works on single drop behavior. For the purpose of the discussion the liquid steady state, phase equilibrium and interfacial equilibrium conditions have been discussed; the material balance links of the phases and their coupling with the equilibrium equation have been examined; and the importance of the time variable and the various characteristic times has been underlined. Finally, by coupling the interface steady state conditions and oxygen material balance a set of sufficient conditions for obtaining a clean pure metallic phase has been derived. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800402h [article] Analysis of oxygen-condensate interactions in metal powder production : sprayed particles in a carrier gas phase [texte imprimé] / Elisabetta Arato, Auteur ; Enrica Ricci, Auteur ; Paolo Costa, Auteur . - 2009 . - pp. 3649–3656. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 48 N° 7 (Avril 2009) . - pp. 3649–3656 Mots-clés : Ssprayed  metal-carrier  gas  system  Droplet  surface  Liquid  steady  state  Phase  equilibrium  Interfacial  equilibrium Résumé : A preliminary, theoretical, analysis of the interfacial oxidization phenomena in a sprayed metal−carrier gas system was made to determine the initial conditions of the process which are compatible or not with surface saturation and the appearance of a separate oxide phase on the droplet surface. This discussion is based on previous theoretical and experimental works on single drop behavior. For the purpose of the discussion the liquid steady state, phase equilibrium and interfacial equilibrium conditions have been discussed; the material balance links of the phases and their coupling with the equilibrium equation have been examined; and the importance of the time variable and the various characteristic times has been underlined. Finally, by coupling the interface steady state conditions and oxygen material balance a set of sufficient conditions for obtaining a clean pure metallic phase has been derived. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie800402h