Tarnish & Corrosion Behavior
Why silver is corrosion-resistant in many settings yet sensitive to sulfur-containing environments.
What this topic covers
Why silver is corrosion-resistant in many settings yet sensitive to sulfur-containing environments.
Core material ideas
Silver is relatively noble but can react with sulfur-containing compounds to form surface tarnish.
Surface films can increase contact resistance in sensitive electrical applications.
Alloys, plating systems, enclosures and contact design can mitigate environmental effects.
Design tradeoffs
Product designers usually use silver selectively where its performance advantage justifies cost.
Performance and evidence
A thin contact, coating or printed line can deliver useful function with far less silver than a bulk component.
Lifecycle perspective
Mining and refining are intentionally outside this site's scope and reserved for the separate follow-on site.