Use of nanoprobes to identify iron-silicates in a glass/iron/argillite system in deep geological disposal
Source abstract
Abstract
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.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Nuclear materials and radiation effects · Glass properties and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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