Glasses on the seabed: surface study of chemical corrosion in sunken Roman glasses

Bianco, Barbara Dal; Bertoncello, Renzo; Milanese, Laura; Barison, S.

doi:10.1016/j.jnoncrysol.2004.07.002

Cited by 30 publications

(35 citation statements)

References 33 publications

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“…9(D) and 10(D)). An identical pattern has been described on archaeological glass originating from a shipwreck [44] and in nuclear glass ageing experiments [45] and was possibly discernible in the marks left on an alkali silicate glass after congruent dissolution [46].…”

Section: Visual Modificationssupporting

confidence: 72%

Effect of organic acid vapors on the alteration of soda silicate glass

Robinet¹,

Eremin²,

Coupry³

et al. 2007

Journal of Non-Crystalline Solids

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Section: Visual Modificationssupporting

confidence: 72%

Effect of organic acid vapors on the alteration of soda silicate glass

Robinet¹,

Eremin²,

Coupry³

et al. 2007

Journal of Non-Crystalline Solids

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“…The enrichment of titanium can be ascribed to a difficult dispersion or fusion of the pigment. An enrichment in titanium was also found during the study on the ring development in the Iulia Felix glass [3,10,11] and it was localised in the centre of the weathering rings. Instead, in these samples the presence of antimony can be ascribed to a homogeneously dispersed impurity present at an undetectable concentration in the patinato and successively concentrated in small areas by melting (in fact, the pigments does not show any presence of antimony in their global composition).…”

Section: Simulation Of the Weathering With Old Row Materialsmentioning

confidence: 57%

“…In particular, one of them shows the presence of a radial accumulation of antimony and titanium with the formation of alteration rings very similar to that of the Polegge case. The samples have been already studied in previous papers [3,10,11], and will not be described here in detail.…”

Section: Samplesmentioning

confidence: 99%

“…The first appearance, when studying ancient glass, is the presence of multilayered systems on the surface that tend to increase with time. The layers are generally made of pure silica, very fragile and easily flaking off [1][2][3]. The weathering is due to the effect of water that, through the mechanisms of diffusion and ionic exchange, produces a general loss of modifier ions on the surface of glass, generating almost pure silica iridescent layers [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Our research group studied in the past the effects of weathering on ancient glass that create the curious effect of development of growth rings on the surface of ancient roman glass, in the case of Iulia Felix rings [2][3][4][5][6]. The appearance of rings was related to the effect of mobility of ions in the silica-gel surface of the glass, immersed in the sea.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The development of growth rings on ancient glass surfaces: Description and simulation of the weathering

Bianco

Bertoncello

2008

Journal of Non-Crystalline Solids

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Investigation on corrosion morphology and products of ancient tin amalgam mirrors by AFM, SEM–EDS and micro-Raman spectroscopies

et al. 2019

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This study detected and investigated the degradation effects and dynamics of the tin amalgam reflective layer of ancient mirrors. The experimental results have been obtained by different spectroscopic techniques: Light Microscopy, Scanning Electron Microscopy with Energy Dispersive X-ray Microanalysis (SEM-EDS), Atomic Force Microscopy (AFM) and μ-Raman Spectroscopy. The latter two were applied for the first time to characterize the amalgam of ancient mirrors. Amalgam alteration products in form of concentric rings with alternate different compositions of tin oxides have been studied on both the amalgam reflective layer inner surface and on its cross-sections. For the first time SEM images of micro-crosssections of different amalgam degradation products, such as amalgam "drops" and craters, have been obtained. The size of the nano-particles of tin oxides, as amalgam degradation products, was estimated around 3-8 nm by AFM and micro-Raman, as already previously detected through TEM. Micro-Raman showed the presence of both cassiterite and romarkite nano-crystals forming the concentric rings, as only previously hypothesized. This investigation allowed to obtain further experimental evidence and a more advanced comprehension about the structure and formation phases of the amalgam decay products, giving further support to some statements by previous authors and suggesting some assertions different from the ones of previous studies.

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Glasses on the seabed: surface study of chemical corrosion in sunken Roman glasses

Cited by 30 publications

References 33 publications

Effect of organic acid vapors on the alteration of soda silicate glass

Effect of organic acid vapors on the alteration of soda silicate glass

The development of growth rings on ancient glass surfaces: Description and simulation of the weathering

Investigation on corrosion morphology and products of ancient tin amalgam mirrors by AFM, SEM–EDS and micro-Raman spectroscopies

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