Documents disponibles écrits par cet auteur

Effect of Mo content on electrochemical behaviour of TiMo alloys for dental applications / D. Mareci in Materials and corrosion, Vol. 61 N° 10 (Octobre 2010) 

Public ISBD [article]  in Materials and corrosion > Vol. 61 N° 10 (Octobre 2010) . - pp. 829–837 Titre : Effect of Mo content on electrochemical behaviour of TiMo alloys for dental applications Type de document : texte imprimé Auteurs : D. Mareci, Auteur ; R. Chelariu, Auteur ; D. M. Gordin, Auteur Année de publication : 2011 Article en page(s) : pp. 829–837 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Artificial  saliva;  commercial  mouthwash  solution;  EIS;  SEM;  TiMo  alloys Résumé : Corrosion behaviour of the new TiMo alloys together with the currently used metallic biomaterials commercial pure titanium (Cp-Ti) was investigated for dental applications. Ingots of composition Ti12Mo, Ti20Mo and Ti40Mo were synthesized by the cold crucible levitation melting (CCLM) technique. All the samples were examined using electrochemical techniques: open circuit potential, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) in two electrochemical media: artificial saliva and in commercial mouthwash solution with 450 ppm F− (Astera©, EU), at 25 °C. The passive behaviour for all the Ti samples is observed for artificial saliva and for commercial mouthwash solution. The results suggest a non-predominant fluoride effect on the passive behaviours of titanium samples. The EIS technique was applied to study the nature of the passive film formed on all the samples at various potentials in artificial saliva and in commercial mouthwash solution. Equivalent circuits (EC) were used to modelling EIS data, in order to characterize samples surface and better understanding the effect of Mo addition on the Cp-Ti. The TiMo alloys, with a dendritic arrangement, appear to possess superior corrosion resistance than the Cp-Ti in both electrochemical media. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201005761/abstract [article] Effect of Mo content on electrochemical behaviour of TiMo alloys for dental applications [texte imprimé] / D. Mareci, Auteur ; R. Chelariu, Auteur ; D. M. Gordin, Auteur . - 2011 . - pp. 829–837. Génie mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 61 N° 10 (Octobre 2010) . - pp. 829–837 Mots-clés : Artificial  saliva;  commercial  mouthwash  solution;  EIS;  SEM;  TiMo  alloys Résumé : Corrosion behaviour of the new TiMo alloys together with the currently used metallic biomaterials commercial pure titanium (Cp-Ti) was investigated for dental applications. Ingots of composition Ti12Mo, Ti20Mo and Ti40Mo were synthesized by the cold crucible levitation melting (CCLM) technique. All the samples were examined using electrochemical techniques: open circuit potential, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) in two electrochemical media: artificial saliva and in commercial mouthwash solution with 450 ppm F− (Astera©, EU), at 25 °C. The passive behaviour for all the Ti samples is observed for artificial saliva and for commercial mouthwash solution. The results suggest a non-predominant fluoride effect on the passive behaviours of titanium samples. The EIS technique was applied to study the nature of the passive film formed on all the samples at various potentials in artificial saliva and in commercial mouthwash solution. Equivalent circuits (EC) were used to modelling EIS data, in order to characterize samples surface and better understanding the effect of Mo addition on the Cp-Ti. The TiMo alloys, with a dendritic arrangement, appear to possess superior corrosion resistance than the Cp-Ti in both electrochemical media. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201005761/abstract