New insight into atmospheric alteration of alkali-lime silicate glasses

Alloteau, Fanny; Lehuédé, Patrice; Majérus, Odile; Biron, Isabelle; Dervanian, Anaïs; Charpentier, Thibault; Caurant, Daniel

doi:10.1016/j.corsci.2017.03.025

Cited by 36 publications

(79 citation statements)

References 34 publications

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“…, and HPO 4 2-) did not drive glass alteration because the formed secondary phases required less Si than the glass. For Fe 2+ , an additional source was derived from the COx claystone, especially from pyrite dissolution.…”

Section: -mentioning

confidence: 98%

“…5a). The secondary phases consumed elements from the glass: pimelite controlled Ni + while zincsilite, powellite, hydroxyapatite, and nontronite governed Zn 2+ , MoO 4 2-, HPO 4 2-, and Fe 2+ , respectively (Supplementary Fig. 5).…”

Section: Modelling Of Glass Corrosion: Pri Altered Layer and Interamentioning

confidence: 99%

“…Cations Li + , Na + , K + , Mg 2+ , Ca 2+ , and Sr 2+ were analysed with a Dionex ion chromatograph using an IonPac CG 12 A, 4 × 50 mm guard column, and CS 12 A 4 × 250 mm analytical column. Anions Cl -, NO 3 -, SO 4 2-, Br -, I -, HPO 4 2-, S 2 O 3…”

Section: Solution Analysis and Interpretationsmentioning

confidence: 99%

“…Glass corrosion that occurs when in contact with aqueous media has been studied in many fields, such as biogeochemical weathering of volcanic glasses in seawater, 1,2 CO 2 sequestration, 3 historical and archaeological artefact conservation, 4,5 and industrial applications. 6,7 The chemical durability of silicate glasses makes them suitable for high-level radioactive waste (HLW) containment that arises from dismantling operations or spentfuel recycling processes.…”

Section: Introductionmentioning

confidence: 99%

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In situ nuclear-glass corrosion under geological repository conditions

et al. 2019

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Silicate glasses are durable materials but laboratory experiments reveal that elements that derive from their environment may induce high corrosion rates and reduce their capacity to confine high-level radioactive waste. This study investigates nuclear-glass corrosion in geological media using an in situ diffusion experiment and multi-component diffusion modelling. The model highlights that the pH imposed by the Callovo-Oxfordian (COx) claystone host rock supports secondary-phase precipitation and increases glass corrosion compared with pure water. Elements from the COx rock (mainly Mg and Fe) form secondary phases with Si provided by the glass, which delay the establishment of a passivating interface. The presence of elements (Mg and Fe) that sustain glass alteration does not prevent a significant decrease in the glass-alteration rate, mainly due to the limited species transport that drives system reactivity. These improvements in the understanding of glass corrosion in its environment provide further insights for predictive modelling over larger timescales and space.

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Section: -mentioning

confidence: 98%

Section: Modelling Of Glass Corrosion: Pri Altered Layer and Interamentioning

confidence: 99%

Section: Solution Analysis and Interpretationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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In situ nuclear-glass corrosion under geological repository conditions

et al. 2019

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“…Besides its brittleness and sensitivity to cracks and flaws, glass is affected by stress corrosion, a degradation phenomenon that is due to the subcritical growth of surface flaws and microcracks, with a consequent decrease of the tensile strength of the material over time [9]. The stress corrosion mechanism depends on intrinsic factors as size and shape of surface flaws and external variables, namely environmental conditions and applied loads [10,11]. Currently, different studies agree that the presence of water favors the growth of micrometric surface defects and cracks.…”

Section: Introductionmentioning

confidence: 99%

Compositionally Graded Hydrophobic UV-Cured Coatings for the Prevention of Glass Stress Corrosion

et al. 2019

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The use of glass in architecture is growing and is moving towards structural applications. However, the tensile strength of glass cannot be fully exploited because of stress corrosion. This is a corrosion triggered by stress applied to the material and dependent on environmental factors such as humidity and temperature. To protect glass from stress corrosion, we developed a UV-cured coating, characterized by hydrophobicity, barrier to water vapor properties, and good adhesion to glass, thanks to a compositional profile. The coating was obtained by combining a cycloaliphatic diacrylate resin with a very low amount of a perfluoropolyether methacrylate co-monomer, which migrated to the free surface, creating a compositionally graded coating. The adhesion to glass was improved, using as a primer an acrylated silane able to co-react with the resins. With a mechanical load test using the coaxial double ring set-up, we proved that the coating is effective in the inhibition of stress corrosion of glass plates, with an increase of 76% of tensile strength.

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Effects of composition on the durability and weathering of flat glass

Lima¹,

Aldinger²,

Haan³

et al. 2022

Glass Struct Eng

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Among the environmental factors affecting glass weathering are humidity, exposure time, temperature, and the presence of pollutants in the atmosphere. Notwithstanding that the weathering produced depends on numerous factors, the important weathering effect of high humidity may be specifically mitigated by using a good chemical composition for the glass. To evaluate this relationship, flat glass samples from three suppliers were studied. The chemical composition of the samples was determined and the variability in compositions was evaluated to verify to what extent these small differences can affect their chemical durability. The chemical durability of the samples was evaluated by determining the hydrolytic resistance of crushed glass powder and using a visual appearance evaluation of bulk samples. The results demonstrate that when the samples are frequently washed, the compositional differences found between the suppliers can cause a significant difference in durability. The samples possessing the highest molar concentrations of Al 2 O 3 , and alkaline earth oxides (MgO + CaO) exhibited the highest

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New insight into atmospheric alteration of alkali-lime silicate glasses

Cited by 36 publications

References 34 publications

In situ nuclear-glass corrosion under geological repository conditions

In situ nuclear-glass corrosion under geological repository conditions

Compositionally Graded Hydrophobic UV-Cured Coatings for the Prevention of Glass Stress Corrosion

Effects of composition on the durability and weathering of flat glass

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