Surface investigation of naturally corroded gilded copper-based objects
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- 作者：G.M. Ingoa ; gabriel.ingo@ismn.cnr.it" class="auth_mail" title="E-mail the corresponding author ; C. Riccuccia ; M. Lavorgnab ; M. Salzano de Lunab ; M. Pascuccia ; G. Di Carloa ; gabriella.dicarlo@ismn.cnr.it" class="auth_mail" title="E-mail the corresponding author
- 关键词：Gilding and silvering ; Ancient coating methods ; Copper alloys ; XPS ; SEM ; + ; EDS ; Corrosion
- 刊名：Applied Surface Science
- 出版年：2016
- 出版时间：30 November 2016
- 年：2016
- 卷：387
- 期：Complete
- 页码：244-251
- 全文大小：3273 K
文摘
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Naturally corroded Au and Ag coated Cu-based objects studied by XPS, SEM + EDS and OM.
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The main degrading agents are Cl, S and P species from surrounding environment.
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Metal galvanic coupling enhances corrosion phenomena.
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Corrosion forms a layered patina of noble metal remains, soil components and Cu2O.
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Useful information to tailor safe cleaning and reliable conservation strategies.