Accession Number : AD0289008

Title :   FAILURE MECHANISMS IN FERROELECTRIC AND NONLINEAR DIELECTRICS

Corporate Author : RAYTHEON CO WALTHAM MASS

Personal Author(s) : RUPPERCHT,G. ; WINTER,W. ; WAUGH,J.S.

Report Date : JUL 1962

Pagination or Media Count : 1

Abstract : The electrical conductivity of SrTiO3 was measured by dc and microwave techniques. Pure, doped, and oxygen deficient material was studied and the temperature dependence of the conductivity was observed. Activation energies in the pure materials and mobilities in the oxygen deficient materials were measured. Preliminary studies of the breakdown voltages in pure SrTiO3 showed bulk breakdown strengths of 10 to the 6th power v/cm. The temperature dependence of the electrostrictive constant g sub 31 was studied in the paraelectric temperature range for pure single crystal SrTiO3. Annealing procedures were developed for the strain-relief of flame fusion grown SrTiO3 boules. (Author)

Descriptors :   (*DIELECTRICS), (*FERROELECTRIC MATERIALS), (*SINGLE CRYSTALS), (*STRONTIUM COMPOUNDS), (*TITANATES), ELECTRICAL CONDUCTIVITY, DIELECTRIC PROPERTIES, ELASTIC PROPERTIES, PIEZOELECTRIC EFFECT, MICROWAVE SPECTROSCOPY, CHEMICALS, IMPURITIES, IRON, CRYSTALS, GROWTH(PHYSIOLOGY), PREPARATION, FAILURE(MECHANICS), ELECTRICAL PROPERTIES

Distribution Statement : APPROVED FOR PUBLIC RELEASE