Description

This Master Prompt focuses on electrical contact materials, switching components, current-carrying interfaces, and degradation mechanisms associated with electrical and mechanical loading. It examines contact resistance, current distribution, Joule heating, arc formation, arc erosion, electrical discharge damage, fretting wear, oxidation, interfacial degradation, and electrically assisted tribological behaviour. Research areas include silver-based contact composites, Ag–SnO₂ systems, metal oxide reinforcements, multilayer coatings, conductive surface treatments, AC contactors, and high-voltage DC switching devices. The theme investigates the influence of material composition, surface roughness, contact pressure, microstructure, coating architecture, electrical loading, lubrication, and environmental conditions on contact performance. It incorporates experimental contact testing, in-situ characterization, microscopy, numerical simulation, electrical resistance monitoring, wear analysis, and failure mechanism identification. The objective is to support advanced research into contact material optimization, switching reliability, electrical wear reduction, failure prevention, and service-life improvement in electrical equipment and electromechanical systems.