Effect of surface roughness on medieval-type glass alteration in aqueous medium

Sessegolo, Loryelle; Verney-Carron, Aurélie; Ausset, Patrick; Saheb, Mandana; Chabas, Anne

doi:10.1016/j.jnoncrysol.2018.10.051

Cited by 8 publications

(4 citation statements)

References 56 publications

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“…Those cracks allow for a deeper water penetration inside the pristine glass, 69 resulting in the formation of an altered layer highly heterogeneous in thickness, with pristine islands in between altered layers sometimes observed. These observations are consistent with other studies on glass surface preparation and glass alteration 70,71 . However, those studies also pointed out that, in aqueous conditions, the glass alteration enhancement effect tends to decrease over time 69,70 .…”

Section: Discussionsupporting

confidence: 92%

“…These observations are consistent with other studies on glass surface preparation and glass alteration. 70,71 However, those studies also pointed out that, in aqueous conditions, the glass alteration enhancement effect tends to decrease over time. 69,70 Moreover, in atmospheric conditions, the further cracking and flaking of the altered surface might surpass the effect of the microcracks formed prior to the alteration on glass durability over time.…”

Section: Surface Treatment Effect On Glass Alterationmentioning

confidence: 99%

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Chemical durability of lead crystal glass: Comparison of short‐term aqueous and atmospheric alteration at 90°C

Collin

Diallo

Lecoq

et al. 2020

Int J of Appl Glass Sci

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Crystal glass alteration in an aqueous medium has been extensively studied following the implementation of strict regulations regarding lead leaching. However, despite the widespread use of lead glasses and crystal glass by artists and artisans ever since antiquity, few works focus on crystal glass corrosion in atmospheric conditions. In this preliminary study, the altered layers formed on crystal glass in aqueous and atmospheric conditions at 90°C are compared. On the timescale studied (20 days), ToF-SIMS profiles of both altered layers show water ingress. This hydration step is correlated with K leaching in aqueous media, and 29 Si and 27 Al NMR analysis of the altered structure highlights the formation of new Q 4 and AlO 6 units. Low alkali leaching is observed in atmospheric conditions, but the altered glass structure is highly hydrolyzed, as attested by its high water and silanol content. As a result, the altered layer formed in aqueous conditions is more polymerized than the one formed in atmospheric conditions, and potentially more passivating through a mechanism involving water availability. On the bases of 29 Si/ 1 H and 27 Al/ 1 H CP-MAS NMR experiments, the oxygen repartition is described in the altered glasses, differentiating the oxygen atoms involved in structural NBO from that of hydroxyl groups.

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Section: Discussionsupporting

confidence: 92%

Section: Surface Treatment Effect On Glass Alterationmentioning

confidence: 99%

Chemical durability of lead crystal glass: Comparison of short‐term aqueous and atmospheric alteration at 90°C

Collin

Diallo

Lecoq

et al. 2020

Int J of Appl Glass Sci

View full text Add to dashboard Cite

show abstract

“…In the processes proposed in Fig. 6, the chemical reactions accepted by the heritage community are considered as localized chemical reactions (i.e., a specific type of solid-state reaction) [73] that occur at inwardly moving fronts. The transport of species couples the reaction fronts with each other.…”

Section: Discussionmentioning

confidence: 99%

Some critical observations about the degradation of glass: The formation of lamellae explained

Schalm

Nuyts

Janssens

2021

Journal of Non-Crystalline Solids

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“…It was hypothesised that the smooth finish limited the ability of water vapour to absorb to the glass surface and begin the dissolution reaction. The surface finish will likely be most important in dilute early-stage dissolution tests 129 , as surface area changes caused by gel layer formation and secondary-phase precipitation will outweigh those caused by microdefects on the glass surface 27,126,130 .…”

Section: Glass Surface Finishmentioning

confidence: 99%

Forty years of durability assessment of nuclear waste glass by standard methods

et al. 2021

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Standard methods to assess the durability of vitrified radioactive waste were first developed in the 1980’s and, over the last 40 years, have evolved to yield a range of responses depending on experimental conditions and glass composition. Mechanistic understanding of glass dissolution has progressed in parallel, enhancing our interpretation of the data acquired. With the implementation of subsurface disposal for vitrified radioactive waste drawing closer, it is timely to review the available standard methodologies and reflect upon their relative advantages, limitations, and how the data obtained can be interpreted to support the post-closure safety case for radioactive waste disposal.

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Effect of surface roughness on medieval-type glass alteration in aqueous medium

Cited by 8 publications

References 56 publications

Chemical durability of lead crystal glass: Comparison of short‐term aqueous and atmospheric alteration at 90°C

Chemical durability of lead crystal glass: Comparison of short‐term aqueous and atmospheric alteration at 90°C

Some critical observations about the degradation of glass: The formation of lamellae explained

Forty years of durability assessment of nuclear waste glass by standard methods

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