Accession Number:

ADP006665

Title:

Rejuvenation of Ferroelectric Fatigue in Modified Lead Zirconate Titanate Ceramics Near Tetragonal-Rhombohedral Morphotropic Phase Boundary,

Descriptive Note:

Corporate Author:

NEW MEXICO INST OF MINING AND TECHNOLOGY SOCORRO DEPT OF METALLURGICAL AND MA TERIALS ENGINEERING

Personal Author(s):

Report Date:

1991-04-05

Pagination or Media Count:

9.0

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.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE