20 Result(s)

Article

Various effects of magnetite on international simple glass (ISG) dissolution: implications for the long-term durability of nuclear glasses

Understanding the effect of near-field materials, such as iron corrosion products, on the alteration of vitreous nuclear waste is essential for modeling long-term stability of these waste forms in a geological...

Lindsey Neill, Stéphane Gin, Thomas Ducasse, Trilce De Echave… in npj Materials Degradation (2017)

Article

Material degradation foreseen in the very long term: the case of glasses and ferrous metals

Stéphane Gin, Philippe Dillmann, Nick Birbilis in npj Materials Degradation (2017)

Article

Contribution of zeolite-seeded experiments to the understanding of resumption of glass alteration

Understanding the origin and the consequences of glass alteration regimes is necessary for the prediction of nuclear glass durability. The so-called “stage 3” or “resumption of alteration regime” of glasses us...

Maxime Fournier, Stéphane Gin, Pierre Frugier… in npj Materials Degradation (2017)

Article

Structure of International Simple Glass and properties of passivating layer formed in circumneutral pH conditions

Knowing the structure of a material is necessary to understand its evolution under various influences; here, the alteration by water of a reference glass of nuclear interest, called International Simple Glass ...

Marie Collin, Maxime Fournier, Pierre Frugier… in npj Materials Degradation (2018)

Article

Chemical durability of peraluminous glasses for nuclear waste conditioning

For the handling of high level nuclear waste (HLW), new glass formulations with a high waste capacity and an enhanced thermal stability, chemical durability, and processability are under consideration. This st...

Victor Piovesan, Isabelle Bardez-Giboire, Maxime Fournier… in npj Materials Degradation (2018)

Article

Impact of alkali on the passivation of silicate glass

Amorphous silica-rich surface layers, also called gels, can passivate silicate glass and minerals depending on environmental conditions. However, several uncertainties remain on the mechanisms controlling the ...

Marie Collin, Maxime Fournier, Thibault Charpentier… in npj Materials Degradation (2018)

Article

Spectroscopic ellipsometry study of thickness and porosity of the alteration layer formed on international simple glass surface in aqueous corrosion conditions

The porosity and pore-size distribution in the glass play an important role in glass corrosion; however, such information is difficult to be obtained non-destructively. Here we report the use of spectroscopic ...

Dien Ngo, Hongshen Liu, Nisha Sheth, Raymond Lopez-Hallman… in npj Materials Degradation (2018)

Article

Application of GRAAL model to the resumption of International Simple Glass alteration

The methodology developed for predicting nuclear waste behavior under disposal conditions combines experimental approaches and modeling. A waste glass canister placed in contact with water undergoes irreversib...

Maxime Fournier, Pierre Frugier, Stéphane Gin in npj Materials Degradation (2018)

Article

Effect of thermally induced structural disorder on the chemical durability of International Simple Glass

While the influence of silicate oxide glass composition on its chemical durability is increasingly known, the contribution of structure only is less well understood, yet is crucial for an accurate description ...

Frederic Angeli, Thibault Charpentier, Patrick Jollivet… in npj Materials Degradation (2018)

Article

Simplifying a solution to a complex puzzle

Stéphane Gin, Joseph V. Ryan, Sébastien Kerisit, **cheng Du in npj Materials Degradation (2018)

Article

Modeling glass corrosion with GRAAL

Computational codes are necessary tools for geochemical modeling of the alteration of minerals due to their ability to handle key mechanisms, such as dissolution, precipitation, diffusion, and convection at ma...

Pierre Frugier, Yves Minet, Natarajan Rajmohan, Nicole Godon… in npj Materials Degradation (2018)

Article

ToF-SIMS depth profiling of altered glass

Glass and mineral corrosion usually leads to the formation of morphologically and compositionally complex surface layers that can be characterized by various analytical techniques to infer rate control mechani...

Marie Collin, Stéphane Gin, Patrick Jollivet, Laurent Dupuy… in npj Materials Degradation (2019)

Article

Hydrogen bonding interactions of H₂O and SiOH on a boroaluminosilicate glass corroded in aqueous solution

Hydrogen bonding interactions play an important role in many chemical and physical processes occurring in bulk liquids and at interfaces. In this study, hydrous species (H₂O and Si-OH) on nano-porous alteration l...

Dien Ngo, Hongshen Liu, Zhe Chen, Huseyin Kaya… in npj Materials Degradation (2020)

Article

Can a simple topological-constraints-based model predict the initial dissolution rate of borosilicate and aluminosilicate glasses?

Tuning glass composition to obtain targeted properties generally relies on empirical approaches. However, a deep understanding of the physical and chemical mechanisms linking glass composition to its structure...

Stéphane Gin, Mengyi Wang, Nicolas Bisbrouck, Mélanie Taron… in npj Materials Degradation (2020)

Article

Investigation on boron and iodine behavior during nuclear glass vapor hydration

Understanding the durability of nuclear glass in the vapor phase is essential for evaluating the long-term safety of the nuclear glass. This work studies the vapor hydration of borosilicate and iodine-bearing ...

Haohan Zhang, Tomo Suzuki-Muresan, Yann Morizet, Stéphane Gin… in npj Materials Degradation (2021)

Article

Aqueous alteration of silicate glass: state of knowledge and perspectives

The question of silicate glass chemical durability is at the heart of many industrial and environmental issues, with certain glasses, such as bioglasses, needing to transform rapidly, while others, like nuclea...

Stéphane Gin, Jean-Marc Delaye, Frédéric Angeli… in npj Materials Degradation (2021)

Article

A comparative study of the dissolution mechanisms of amorphous and crystalline feldspars at acidic pH conditions

The dissolution of amorphous and crystalline oligoclase, a Na-feldspar with traces of Ca and K, was investigated at 90 °C and acidic pH of 1.5 and 3 to unravel the impact of long- and short-range orders on sil...

Benjamin Cagnon, Damien Daval, Martiane Cabié… in npj Materials Degradation (2022)

Article

On the effect of Al on alumino-borosilicate glass chemical durability

The chemical durability of borosilicate glass used to confine nuclear wastes is known to vary nonlinearly with their composition, making glass dissolution rate predictions difficult. Here, we focus on the effe...

Kamalesh Damodaran, Stéphane Gin, Sathya Narayanasamy… in npj Materials Degradation (2023)

Article

Author Correction: On the effect of Al on alumino-borosilicate glass chemical durability

Kamalesh Damodaran, Stéphane Gin, Sathya Narayanasamy… in npj Materials Degradation (2023)

Article

Effect of structural disorder induced by external irradiation with heavy ions on the alteration of a four oxide borosilicate glass

The irradiation of glass by heavy ions induces structural damage, generally leading to a decrease in its chemical durability whose amplitude strongly depends on the glass chemical composition. Here, we investi...

Stéphane Gin, Mélanie Taron, Hélène Arena, Jean-Marc Delaye in npj Materials Degradation (2024)