Study of corrosion products on Vietnamese archaeological bronzes dating from the Dông Sôn period

Schoukens, Ine; Tourwe, Els; Guillaume, Joseph; Việt, Nguyễn; Vereecken, Jean; Terryn, Herman

doi:10.1002/sia.2656

Cited by 5 publications

(2 citation statements)

References 10 publications

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“…Phases already observed in corroded bronzes were also reported (sulfates, chlorides and mixtures) . The references correspond to previous Raman studies where such phases have been already observed in bronze patina and/or to reference works on these phases . Table lists the phases identified for each item.…”

Section: Resultsmentioning

confidence: 79%

On‐site Raman and XRF analysis of Japanese/Chinese bronze/brass patina – the search for specific Raman signatures

Colomban

Tournié

Maucuer³

et al. 2011

J Raman Spectroscopy

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The assignment of Asian bronzes and brasses is difficult because the copies of ancient pieces have been made a long time ago in different countries. A selection of 30 Japanese and/or Chinese bronzes/brasses are studied on‐site in the storage and exhibition rooms of the Cernuschi Museum, in Paris, using portable Raman and X‐ray fluorescence spectrometers. Attempts are made to identify specific Raman signatures of the patina to detect similarity in a nondestructive procedure. X‐ray fluorescence measurements allow an identification of two brass artefacts and different types of bronze, including lead‐rich and mixed lead–tin–zinc‐rich compositions. The following phases are identified: CuO, Cu2O, Cu2S, tin oxides, ZnO, Cu3(OH)4SO4, Cu4(OH)6SO4, 3PbOPbSO4 H2O, PbSO4/PbO, Pb(AsO4)3Cl, HgO/HgS. Relics of the mould, retained as concretions at the artefact surface are also identified: TiO2, SiO2, and different soda(−lime) glasses. Patina with very similar colour and habit may have different Raman signatures. This study offers tools to classify the artefacts in a noninvasive way. Copyright © 2011 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 79%

On‐site Raman and XRF analysis of Japanese/Chinese bronze/brass patina – the search for specific Raman signatures

Colomban

Tournié

Maucuer³

et al. 2011

J Raman Spectroscopy

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“…Hence it has been used frequently in the analysis of corrosion products on bronze [16][17][18][19]. In the present study, Raman spectroscopy supplemented by X-ray fluorescence spectroscopy was used to identify the corrosion products grown on three bronze swords excavated at Lijiaba.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of phosphatic corrosion products on bronze swords of the Warring States period buried at Lijiaba site in Chongqing, China

Fan¹,

Freestone

2017

Herit Sci

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Corrosion products on three bronze swords found in tombs dating from the Warring States period at Lijiaba site, Yunyang county, Chongqing were characterized by Raman and X-ray fluorescence spectroscopies. The major corrosion products were cuprite, malachite, cerussite and cassiterite, along with the copper and lead phosphates, libethenite and pyromorphite. The presence of libethenite and pyromorphite which have been reported infrequently in bronze corrosion products were attributed to the pH, humidity and phosphorus released by the decomposition of the adjacent bodies in the burial environment.

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Early stages of copper corrosion behaviour in a Tunisian soil

Souissi

Triki

2010

Materials & Corrosion

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The early stages of copper corrosion in a Tunisian soil were studied using mass loss, surface analysis (optical microscopy, visible spectroscopy, IRTF and atomic force microscopy) and electrochemical characterizations (polarization curves and cyclic voltammetry). The corrosion rate dependence with immersion time was Dm ¼ at b . Two behaviours for the material surface were evidenced when varying the soil concentration and temperature. Then, the apparent kinetic constant, the soil reaction order and the apparent activation energy were calculated. Analytical and electrochemical characterizations showed that a rough patina layer was build up as a result of the interaction between soil and copper.

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Study of corrosion products on Vietnamese archaeological bronzes dating from the Dông Sôn period

Cited by 5 publications

References 10 publications

On‐site Raman and XRF analysis of Japanese/Chinese bronze/brass patina – the search for specific Raman signatures

On‐site Raman and XRF analysis of Japanese/Chinese bronze/brass patina – the search for specific Raman signatures

Occurrence of phosphatic corrosion products on bronze swords of the Warring States period buried at Lijiaba site in Chongqing, China

Early stages of copper corrosion behaviour in a Tunisian soil

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