Accession Number : ADP006665
Title : Rejuvenation of Ferroelectric Fatigue in Modified Lead Zirconate Titanate Ceramics Near Tetragonal-Rhombohedral Morphotropic Phase Boundary,
Corporate Author : NEW MEXICO INST OF MINING AND TECHNOLOGY SOCORRO DEPT OF METALLURGICAL AND MA TERIALS ENGINEERING
Personal Author(s) : Pan, Wuyi ; Yue, Cheng-Feng
Report Date : 05 APR 1991
Pagination or Media Count : 9
Abstract : Rejuvenation of ferroelectric fatigue is investigated in modified lead zirconate titanate ferroelectric ceramics near the tetragonal-rhombohedral morphotropic phase boundary. Ferroelectric fatigue rejuvenates with changes in the applied electric field direction. Spontaneous rejuvenation occurs in the absence of an electric field. A coupling among the applied electric field, oxygen vacancy related defect dipoles, and spontaneous polarizations is proposed to explain ferroelectric fatigue and rejuvenation.
Descriptors : *FERROELECTRIC MATERIALS, *FATIGUE(MECHANICS), BOUNDARIES, COUPLINGS, DIPOLES, ELECTRIC FIELDS, OXYGEN, PHASE, REJUVENATION, ZIRCONATES, LEAD TITANATES, CRYSTAL STRUCTURE.
Subject Categories : Ceramics, Refractories and Glass
Distribution Statement : APPROVED FOR PUBLIC RELEASE