Comparison between Solid State Process and Coprecipitation Coating Doping Process in the Preparing Zinc Oxide Varistor Ceramic Powder

The principles of coprecipitation coating process and solid state process are introduced, and their effects on varistors′ performances are compared.Compared with solid state process, the coprecipitation coating process has greatly improved the microstructure homogeneity of zinc oxide varistors, thus enhancing electrical performances of varistors, the process is a good varistor powder preparing method that is worth using for reference and popularizing from the point of enhancing the electrical performances of varistors.