Etude des coefficients d’interdiffusion dans
les solutions solides Αl-Αg par les methodes
electrochimiques transitoires dans
l’eutectique ternaire NaCl-KCl-LiCl

dc.contributor.author	Χρυσουλάκης, Γιάννης Δημ.	el
dc.contributor.author	Lantelme, Frederic	fr
dc.contributor.author	Αλεξοπούλου - Αγοράνου, Αθηνά	el
dc.contributor.author	Καλογεροπούλου, Σοφία	el
dc.contributor.author	Chemla, Marius	fr
dc.date.accessioned	2015-01-11T20:43:23Z
dc.date.available	2015-01-11T20:43:23Z
dc.date.issued	2015-01-11
dc.identifier.uri	http://hdl.handle.net/11400/3792
dc.rights	An error occurred on the license name.	*
dc.rights	Αναφορά Δημιουργού 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	An error occurred getting the license - uri.	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/us/	*
dc.subject	Electrolyte interface
dc.subject	Chronopotentiometry
dc.subject	Οξείδωση
dc.subject	Αλουμίνιο
dc.title	Etude des coefficients d’interdiffusion dans les solutions solides Αl-Αg par les methodes electrochimiques transitoires dans l’eutectique ternaire NaCl-KCl-LiCl	fr
heal.type	learningMaterial
heal.generalDescription	Abstract The interdiffusion phenomena in the solid solution α of the Al-Ag system are examined in the temperature range 648–793 K using a molten NaCl-KCl-LiCl electrolyte. The interdiffusion coefficients D are measured by use of transient techniques such as chronopotentiometry and chronoamperometry taking into account the perturbations due to the variations of the activity coefficients and the movement of the electrode/electrolyte interface. The imposed pulses are anodic as well as cathodic under galvanostatic and potentiostatic conditions. The evolution of the surface composition back to the equilibrium situation after the end of the electrolysis is also examined. The ratio between the diffusion coefficient Dc deduced from classical laws and that calculated taking into account the influence of the electrode boundary motion, D is Dc/D = 1.3 on an average value. The evolution of the interdiffusion coefficients is determined to be of the following forms as a function of the composition x (0 < xA1 < 0.2, xA1: mole fraction of aluminium): Moreover the evolution of the interdiffusion coefficients as a function of the temperature obeys the following equation: with D∞ = 16.3 × 10−1 cm−2 s−1 and ΔH = 153 kJ mol−1 for x = 0.15.	en
heal.classification	Art
heal.classification	Painting
heal.classification	Έργα τέχνης - Συντήρηση και αποκατάσταση
heal.classification	Αρχαιότητες Συλλογή και συντήρηση
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85007461
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh00006877
heal.classificationURI	N/A-Έργα τέχνης - Συντήρηση και αποκατάσταση
heal.classificationURI	N/A-Αρχαιότητες Συλλογή και συντήρηση
heal.language	el
heal.language	en
heal.language	fr
heal.access	free
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας, Σχολή Καλλιτεχνικών Σπουδών, Τμήματος Συντήρησης Αρχαιοτήτων και Έργων Τέχνης	el
heal.academicPublisherID	teiath
heal.fullTextAvailability	true
heal.learningResourceType	lectureNotes	el