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CRYSTAL CHEMISTRY OF CERAMIC DIELECTRICS.
Quarterly rept. no. 2, 15 Feb-15 May 63,
LINDEN LABS INC STATE COLLEGE PA
Pagination or Media Count:
The present report contains three parts. The first part is concerned with the effect of the electrode material on the degradation rate of BaTiO3 dielectrics. Studied were gold, silver, indium-gallium and graphite in all combinations as cathode and anode. The results indicate that only the material at the anode determines the rate of degradation. Silver at the anode en hances degradation, gold slows it down and indium-gallium has an intermediate effect. Graphite at the anode gives first rise to a strong current increase, almost like silver. The second part of the report deals with new measure ments of potential distribution changes during degradation in BaTiO3 dielectrics. The third part of the report represents a discussion of selected measurements on the charge-discharge phenomenon is stable commercial bodies as re ceived and after reducing pretreatments. These results confirm that the discharge currents measured at a fixed time are not a monotonic function of the state of degradation or reduc tion, but go through a maximum. Author
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