Accession Number : AD0710251

Title :   RELATIONSHIP BETWEEN THE BREAKDOWN MECHANISM IN BARIUM TITANATE AND COLORATION,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Shefer,N. I. ; Bursyan,E. V.

Report Date : 05 JUN 1970

Pagination or Media Count : 12

Abstract : It is shown that the complex time dependence of electrical conductivity in barium titanate single crystals is due to two processes - f- and v-coloration. (The f-centers emanate from the cathode and the v-centers from the anode). The breakdown in barium titanate ceramic below 200 degrees centigrade and in single crystals below 350 degrees centigrade is not thermal. The loss of dielectric strength before breakdown is due to f-coloration, resulting from the injection of electrons from the cathode. (Author)

Descriptors :   (*TITANATES, ELECTRICAL CONDUCTIVITY), (*BARIUM COMPOUNDS, ELECTRICAL CONDUCTIVITY), COLOR CENTERS, DEGRADATION, DIELECTRIC PROPERTIES, USSR

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE