Ceramic Insulators

Ceramic insulators are mainly produced from porcelain, steatite, cordierite or alumina.

These materials exhibit excellent electrical resistivity, low dielectric constant, very low dielectric loss factor and high dielectric strength. The electrical properties change only insignificant at high temperatures.

Alumina finds application where additionally to electrical properties very high mechanical strength is required.
Very good thermal shock resistance characterizes cordierite. Thus, cordierite parts can be used as a carrier of heating elements, besides theirs electrical applications.

Steatite connects favourable price with good electrical and mechanical properties.