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Piezoelectric Properties of SrBi4Ti4O15 Ferroelectric Ceramics

Maeder, Marlyse Demartin ; Damjanovic, Dragan ; Voisard, Cyril ; Setter, Nava

In: Journal of Materials Research, 2002, vol. 17, no. 6, p. 1376-1384

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    Titre
    • Piezoelectric Properties of SrBi4Ti4O15 Ferroelectric Ceramics
    Auteur
    • Maeder, Marlyse Demartin. Ceramics Laboratory, Materials Department, Swiss Federal Institute of Technology - EPEL, 1015 Lausanne, Switzerland
    • Damjanovic, Dragan. Ceramics Laboratory, Materials Department, Swiss Federal Institute of Technology - EPEL, 1015 Lausanne, Switzerland
    • Voisard, Cyril. Ceramics Laboratory, Materials Department, Swiss Federal Institute of Technology - EPEL, 1015 Lausanne, Switzerland
    • Setter, Nava. Ceramics Laboratory, Materials Department, Swiss Federal Institute of Technology - EPEL, 1015 Lausanne, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Journal of Materials Research, 2002, vol. 17, no. 6, p. 1376-1384. Cambridge University Press
    Autre version électronique
    Classification
    • Santé
    Identifiant OAI-PMH
    • oai:doc.rero.ch:294357
    Summary
    The dynamic piezoelectric response of SrBi4Ti4O15 ceramics with Aurivillius structure was investigated at high alternating stress, low frequencies (0.01 to 100 Hz), and temperatures from 20 to 200 °C. The piezoelectric nonlinearity, observed only at high pressures (>10 MPa) and elevated temperatures (>150 °C), is interpreted in terms of contributions from non-180° domain walls. At weak fields, the frequency dependence of the longitudinal piezoelectric coefficient was explained in terms of Maxwell-Wagner piezoelectric relaxation. The Maxwell-Wagner units are identified as colonies that consist of highly anisotropic grains which sinter together, and whose distribution in the ceramic is strongly dependent on sintering conditions