Key parameters determining structure and properties of sulphide films formed on copper corroding in anoxic sulphide solutions
Source abstract
Abstract
The corrosion behaviour of copper was studied in anoxic solutions containing different concentrations of sulphide (10−5–10−3 mol L−1) and chloride (0·1–5 mol L−1) under stagnant and controlled convective conditions. The main determinants of the structure and properties of the copper sulphide (Cu2S) films formed are the rate of sulphide transport to the surface relative to the rate of its interfacial reaction with copper, and competition between sulphide and chloride for surface adsorption sites. When sulphide diffusion is rate limiting, the sulphide film formed is porous and non-protective, whereas when film growth is not limited by mass transport of sulphide, the sulphide film is compact and protective. The results indicate that, under Swedish repository conditions, the film formed on copper will be porous and non-protective and its growth diffusion controlled.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Concrete Corrosion and Durability · Anodic Oxide Films and Nanostructures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of ChemistryThe University of Western Ontario, London, Ontario N6A 5B7, Canada
Surface Science WesternThe University of Western Ontario, London, Ontario N6G 0J3, Canada
References (16)
Show source-provided references
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