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
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE