Abstract:
The present invention relates to a method of manufacturing surge arrestors, the method including stacking varistors; and forming a coating of composite material on the stack. Between these steps, also included is placing a bead of flexible, adhesive, and dielectric material on the previously formed stack in register with the various interfaces between each pair of adjacent varistors.
Abstract:
Process for the preparation of a semiconducting ceramic based on doped tin oxide SnO2 by a process of “PADO” (Precursor Alloy Direct Oxidation) type applied to an alloy of tin and of doping metals or by a process of “PADO” type applied to tin, the doping metals being added in the form of oxides to the powder subjected to sintering.