EFFECTS OF EXCESS PBO ADDITION ON THE PROPERTIES OF FERROELECTRIC DOPED PZT CERAMICS

Authors
MEGRICHE A TROCCAZ M
Citation
A. Megriche et M. Troccaz, EFFECTS OF EXCESS PBO ADDITION ON THE PROPERTIES OF FERROELECTRIC DOPED PZT CERAMICS, Materials research bulletin, 33(4), 1998, pp. 569-574
Citations number
10
Categorie Soggetti
Material Science
Journal title
Materials research bulletin → ACNP
ISSN journal
00255408
Volume
33
Issue
4
Year of publication
1998
Pages
569 - 574
Database
ISI
SICI code
0025-5408(1998)33:4<569:EOEPAO>2.0.ZU;2-P
Abstract
The influence of a PbO excess in the PZT composition Pb0.92 + xSr0.08 (Zr0.515Ti0.455Nb0.02Mn0.01)O3 + x (0 < x < 0.12) was investigated. A sintering method was chosen for the ceramics manufacture. Weight-loss experiments were performed to compare the final PbO content values to the theoretical x, and a nearly stoichiometric area was observed for 0 .01 < x < 0.08, corresponding to optimal piezoelectric coefficients. S ubstitution of Mn ion in a +2 or +4 valency state was studied. Measure ments of vibration velocities with a view to ultrasonic motors applica tion were carried out. (C) 1998 Elsevier Science Ltd.