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Proceedings Paper

Fluoridated piezoelectric ceramics for power transducer
Author(s): Lucien Eyraud; Paul Eyraud; Paul Gonnard; David Audigier
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Paper Abstract

The fluoridation of anionic sites in the perowskite lattice ABO3 can greatly stabilize the remanent polarization under high stresses level. The dielectric losses are smaller than oxygen deficient materials. The mechanism for stabilization is always allocated to sites which can act either as electron donors or acceptors. The charge transfer induces a polarization which is sufficient to cancel the distribution of bound charge ((rho) equals -divP) in the poled phase. The B3+ - F1- couples constitute dipoles which have a better stability than the B3+ - V0 couples only present in perowskite ceramics with oxygen vacancies.

Paper Details

Date Published: 26 April 1996
PDF: 4 pages
Proc. SPIE 2779, 3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials, (26 April 1996); doi: 10.1117/12.237178
Show Author Affiliations
Lucien Eyraud, Institut National des Sciences Appliquees de Lyon (France)
Paul Eyraud, Institut National des Sciences Appliquees de Lyon (France)
Paul Gonnard, Institut National des Sciences Appliquees de Lyon (France)
David Audigier, Institut National des Sciences Appliquees de Lyon (France)


Published in SPIE Proceedings Vol. 2779:
3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials
Pierre Francois Gobin; Jacques Tatibouet, Editor(s)

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