Engineering materials are selected by matching measured properties to service conditions, manufacturing processes, safety limits and cost. For electrical applications, the relevant properties can include conductivity, permittivity, permeability, dielectric strength, thermal behaviour, mechanical strength and resistance to ageing.
The article groups below move from atomic structure to electrical, magnetic, dielectric and superconducting behaviour. They also cover practical material uses. Property values depend on composition, microstructure, processing, temperature, frequency and applied fields, so designers should use data measured under conditions that match the intended application.




















































