Anzeige
Erschienen in:
01.05.2013
Electrical properties of non-stoichiometric PZT 95/5 ferroelectric ceramics
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 5/2013
EinloggenAktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
Pb0.99(Zr0.95Ti0.05)0.98Nb0.02O3 (denoted as PZT 95/5) ceramics were prepared according to the nominal composition of Pb0.99+x
(Zr0.95Ti0.05)0.98Nb0.02O3+x
(−0.01 ≤ x ≤ 0.04). The electrical properties as a function of lead oxide (Pb) stoichiometry were evaluated. X-ray diffraction analysis shows that all the as-synthesized PZT 95/5 powders are pure perovskite phase and the unit cell volume increases with the addition of Pb. SEM micrographs indicate the fracture mode tends to be predominately intergranular and grain size gets bigger with the increase of Pb content. The coercive field decreases with the increase of Pb till x = 0.02 and then increases when the excess Pb is over x = 0.02. The remnant polarization first increases and then decreases with the increasing amount of excess Pb. Sample with excess Pb x = 0.03 has the biggest value of remnant polarization.