Corrosion kinetics of AgCu alloys exposed to sulphur containing atmospheres
The aim of this proposal is to identify and fully describe the corrosion kinetics of AgCu alloys relevant to artefacts of archaeological and cultural heritage significance. This is impossible with other surface analytical techniques due to the estimated corrosion layer thickness (in the order of 100 nm). The present proposal considers dynamic in situ specular NR measurements of the corrosion behaviour of AgCu alloy films in S2- environments. The AgCu films will be electrochemically deposited in situ from deep eutectic solvent medium (1choline chloride, 1Ch+Cl-: 2ethylene glycol, EtGly) with CuCl and AgCl. The corrosion studies will be carried out by exposing the AgCu alloys to sulphide solutions of varying concentrations. The outcomes of this first approach will allow establishing a method for studying more complex systems as based gold ternary AuAgCu alloy corrosion studies.
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FERREIRA Virginia; Andrew D Ballantyne; BARKER Robert; GUERRA Maria Filomena; HILLMAN A. Robert; PALIN Emma; RYDER Karl; SAPSTEAD Rachel; SMITH Emma and TISSOT DAGUETTE Maria Isabel. (2015). Corrosion kinetics of AgCu alloys exposed to sulphur containing atmospheres. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-03-29
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