On Permanent Charges in Solid Dielectrics I. Dielectric Absorption and Temperature Effects in Carnauba Wax
- 1 April 1945
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 67 (7-8) , 253-259
- https://doi.org/10.1103/PhysRev.67.253
Abstract
The influence of the temperature upon dielectric absorption is studied for carnauba wax. Isothermic and non-isothermic current-time curves are measured. It is shown that a considerable part of the absorbed charge can be "frozen in," if the temperature is reduced to a value sufficiently inferior to that prevailing during the charging period before the system is short-circuited. The "frozen" charge dissipates extremely slowly, if the temperature is kept low, but it is liberated rapidly if the temperature is raised again. The effect is explained by the increase of the charging and discharging rates with increasing temperature. It is closely related to the permanent moment of the electret.Keywords
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