Electrical properties of ceramics

HIGH-TENSION procelain long has been and stillis one of the most important ceramics used in the electrical industry. For high-temperature and high-frequency applications, however, it has some deficiencies which are not present to the same degree in the newer oxide procelains, among which are zircon and alumina procelains. Data on dielectric strength, resistivity, and power factor were obtained over a range of temperature for these two oxide porcelains as well as for high tension procelain. The temperature range covered extends up to 1,000 degrees centigrade.