ELECTRIC CORONA DISCHARGE DEVICE, METHOD FOR MAKING SAID DEVICE AND ELECTROSTATIC TREATMENT APPARATUS COMPRISING SAID DEVICE

摘要

An electric field device is obtained by the steps of employing a highly pure and mechanically electrically chemically and thermally extremely durable ceramic material, such as a high purity alumina porcelain, as a dielectric material, disposing electrodes on the shaped material before sintering by a thick film printing technique, such as screen printing, with a dispersion ink of finely divided metal, e.g. tungsten, and sintering the shaped material integrally with the electrodes. The product is extremely dense, mechanically electrically chemically and thermally durable and highly reliable.