Use of nanoprobes to identify iron-silicates in a glass/iron/argillite system in deep geological disposal - CEA - Commissariat à l’énergie atomique et aux énergies alternatives Access content directly
Journal Articles Corrosion Science Year : 2019

Use of nanoprobes to identify iron-silicates in a glass/iron/argillite system in deep geological disposal

Abstract

The understanding of glass alteration mechanisms in contact with iron is a major issue to study the long-term behavior of radioactive waste package in repository conditions. A glass/iron/claystone system was altered in contact with COx water at 50°C for 4.5 years in Andra's underground research laboratory in Bure, France. Multiscale and multitechnical (SEM-EDX, µRaman, STXM and TEM) characterization of the system revealed the presence of nanometric crystalline Fe(III)-rich smectite, assimilated to nontronite, in the glass alteration layer and in corrosion products. These phyllosilicates were identified by STXM using a comparative approach with a database of reference spectra obtained on iron-silicate.
Fichier principal
Vignette du fichier
Carriere_CorrSci2019.pdf (1.95 Mo) Télécharger le fichier
Origin Files produced by the author(s)
Loading...

Dates and versions

cea-02397446 , version 1 (06-12-2019)

Identifiers

Cite

Charly Carrière, Philippe Dillmann, Eddy Foy, Delphine D. Neff, J.J. Dynes, et al.. Use of nanoprobes to identify iron-silicates in a glass/iron/argillite system in deep geological disposal. Corrosion Science, 2019, 158, pp.108104. ⟨10.1016/j.corsci.2019.108104⟩. ⟨cea-02397446⟩
50 View
177 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More