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Proceedings Paper

Multiaxial response of hard and soft ferroelectrics under stress and electric field
Author(s): John E. Huber; Jay Shieh; Norman A. Fleck
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Paper Abstract

Samples of soft PZT-5H, hard PZT-4D and Barium Titanate were subjected to multi-axial loading in stress and electric field space. The loading paths were: (1) Poling with electric field, followed by repolarizing with electric field at an angle to the original poling direction. (2) Proportional loading with electric field and coaxial compressive stress, the proportions of stress and electric field being varied between tests. In case (1) the poled material was cut to produce faces angled to the original poling direction. The measured material responses are reported and initial switching surfaces are calculated based on an offset from linear response in electric displacement. The measurements are used to assess the features required in micromechanical or phenomenological models of switching.

Paper Details

Date Published: 11 July 2002
PDF: 10 pages
Proc. SPIE 4699, Smart Structures and Materials 2002: Active Materials: Behavior and Mechanics, (11 July 2002); doi: 10.1117/12.474968
Show Author Affiliations
John E. Huber, Univ. of Cambridge (United Kingdom)
Jay Shieh, Univ. of Cambridge (United Kingdom)
Norman A. Fleck, Univ. of Cambridge (United Kingdom)

Published in SPIE Proceedings Vol. 4699:
Smart Structures and Materials 2002: Active Materials: Behavior and Mechanics
Christopher S. Lynch, Editor(s)

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