A conductive material comprising a copper core sheathed in a layer of silver finds extensive use in diverse electrical and electronic applications. This composite structure leverages the high conductivity of both metals. For instance, in high-frequency signal transmission, the outer silver layer facilitates enhanced signal propagation due to the skin effect, where high-frequency currents primarily flow along the conductor’s surface.
The combination offers several advantages. The silver coating provides excellent corrosion resistance, protecting the underlying copper from oxidation and degradation, thereby extending the lifespan and reliability of the conductor. Furthermore, the enhanced surface conductivity translates to improved electrical performance, particularly in applications demanding minimal signal loss. Historically, this type of conductor has been crucial in aerospace, telecommunications, and high-end audio equipment due to its superior properties.