Research on Corrosion of Lead Printing Letters from the Museum Plantin-Moretus, Antwerp

Storme, Patrick; Jacobs, Marjan; Lieten, Emilie

doi:10.1016/j.proche.2013.03.038

Cited by 6 publications

(11 citation statements)

References 3 publications

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“…PbSb10 and PbSb15 specimens show a sudden increase in volume and brittleness due to macroscopic expansion of the samples, but no white patina is visible. Conversely, PbSb5, PbSn5 and PbSn2 seem to exhibit a similar behaviour, which is coherent with previously performed analyses: [1,23] a white patina was observed and whitish powders appeared on the surface of all samples.…”

Section: Monitoring Of Corrosion Patina and Mass Variation Testssupporting

confidence: 91%

“…A study conducted by our research group from the Universities of Genoa and Bologna in collaboration with the Conservation Studies Department of the University of Antwerp on original printing letters from the Plantin‐Moretus Museum Collection – consisting of specific types of Pb‐based alloys (with Sb and Sn as alloying elements) seldom studied in the past – has brought to light new results on the characterisation of Pb‐based artefacts under volatile organic compound (VOC) vapours . During this research, different Pb‐based alloy replicas have been produced in order tomorphologically and chemically characterise corrosion products and relative mechanisms andevaluate the influence of alloying elements (Sn, Sb) on corrosion.…”

Section: Introductionmentioning

confidence: 99%

“…Pb alloys – in which Sn and Sb contents were conveniently modified on the basis of research conducted by one of the authors and yet to be published – were reproduced in the laboratory and later subjected to specific tests simulating corrosion processes inside wooden boxes emitting organic pollutants. In order to investigate the corrosion behaviour, samples were exposed to accelerated corrosion tests (by using sealed desiccators with saturated organic acid atmospheres).…”

Section: Introductionmentioning

confidence: 99%

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Micro Raman investigation on corrosion of Pb‐based alloy replicas of letters from the museum Plantin‐Moretus, Antwerp

Ghiara

Campodonico

Piccardo

et al. 2014

J Raman Spectroscopy

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To better understand corrosion behaviour of lead (Pb)-based alloys exposed to volatile organic compounds – specifically acetic\ud and formic acid – a preliminary research has been carried out on laboratory-made samples replicating such alloys. Replicas have\ud been manufactured by simulating specific types of Pb-based alloys, with antimony (Sb) and tin (Sn) as alloying elements, in order to\ud characterise corrosion products and evaluate the influence of each alloying element. Replicas were cast in a refractorymould and later\ud placed in size-specific desiccators and exposed to concentrated acetic and formic acid vapours for 15 days. Each specimen was also\ud subjected to gravimetric measurements and periodically monitored in order to understand the corrosion behaviour. Micro Raman\ud Spectroscopy (μRS) and Scanning Electron Microscopy together with energy Dispersive X-Ray Spectroscopy were used for the characterisation\ud of Pb-based replicas. Results showed the presence of typical corrosion products – more or less hydrated forms of Pb and Sn\ud acetates and formates – and also a sudden increase in the volume and brittleness of some Sb-rich specimens as well as the presence of\ud seldom-detectedmetallic Sb peakswith μRS. In this perspective, the influence of Sb as an alloying element on the corrosion of Pb-based\ud artefactsmay generate serious problems when such objects have to be restored and particular attention should be given to conservation/\ud stabilisation procedures

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Section: Monitoring Of Corrosion Patina and Mass Variation Testssupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Micro Raman investigation on corrosion of Pb‐based alloy replicas of letters from the museum Plantin‐Moretus, Antwerp

Ghiara

Campodonico

Piccardo

et al. 2014

J Raman Spectroscopy

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“…To dokazuje nález velkého souboru typografi ckého materiálu z okolí tvrze, který v rámci archeologického výzkumu v letech 1956-1958 prováděla Dr. Vlasta Fialová [1]. Výsledky průzkumu chemického složení a korozního poškození kralických liter byly porovnávány s literami z muzea Plantin-Moretus v Antverpách, které byly předmětem zkoumání na tamější univerzitě [2].…”

Section: úVodunclassified

“…The study on corrosion of Pb-Sn-Sb alloys in soil Rapouch K. 1,2 , Selucká A. 1 Litery z muzea Plantin-Moretus, jež byly datovány do 19. století, byly poškozeny vlivem par organických kyselin (Obr.…”

Section: Studium Koroze Slitin Pb-sn-sb V Pùdním Prostøedíunclassified

The study on corrosion of Pb–Sn–Sb alloys in soil

Rapouch

Selucká²,

Mazík³

et al. 2015

Koroze a Ochrana Materialu

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The paper studies corrosion of selected Pb-Sn-Sb alloys in soil. Corrosion tests were proposed and performed based on the survey of the mechanism of corrosion of archaeological objects – letter types. The composition of tested lead alloys corresponds to the phases in structures of alloys the original types were made from. Three types of soil with different pH were selected as the corrosion environment and one of the set of specimens was exposed additionally to acetic acid vapours to monitor the impact of volatile organic compounds. The results were compared with similar corrosion tests performed at the University of Antwerp. The results implied that it was predominantly the character of the microstructure the lead alloys form that affects corrosion of Pb–Sn–Sb alloys. Intermetallic phases SnSb are formed within the lead matrix, the average composition of which corresponds to 55 % of Sn and 45 % of Sb. The SnSb phase is very hard and resistant; a corrosion microcell is formed when in contact with the matrix, with the lead matrix being preferentially susceptible to corrosion. The content of antimony and tin in the alloy affects formation and the quantity of the SnSb phase.

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Indoor air quality for heritage objects and human health: just a different interpretation of the same measurements?

Carro,

Schalm,

Storme

et al. 2023

Air Qual Atmos Health

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The environmental conditions in a conservation-restoration studio for paintings induce an inherent risk to objects of art and to humans working on those objects. They are both subject to (sometimes dangerous) chemical substances and fluctuations in environmental conditions (e.g., temperature, relative humidity). In this paper, we report on a measuring campaign which lasted more than a year collecting data about the air quality within a painting studio of a higher education institute. An existing algorithm assessed the indoor air quality for heritage objects using international air quality standards. This contribution presents a new algorithm to assess indoor air quality for human health relying on thresholds imposed by legislation and recommended by reference institutes. This algorithm has been applied to the same measuring campaign. The assessments illustrate that the same environmental conditions have a different impact on canvas paintings, panel paintings, students, and staff. Air quality is thus a relative concept that depends on the object/subject that is considered in the analysis. Graphical abstract

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Research on Corrosion of Lead Printing Letters from the Museum Plantin-Moretus, Antwerp

Cited by 6 publications

References 3 publications

Micro Raman investigation on corrosion of Pb‐based alloy replicas of letters from the museum Plantin‐Moretus, Antwerp

Micro Raman investigation on corrosion of Pb‐based alloy replicas of letters from the museum Plantin‐Moretus, Antwerp

The study on corrosion of Pb–Sn–Sb alloys in soil

Indoor air quality for heritage objects and human health: just a different interpretation of the same measurements?

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