Eur. Phys. J. AP
Volume 14, Number 3, June 2001
|Page(s)||155 - 158|
|Section||Semiconductors and Devices|
|Published online||15 June 2001|
Apparent Young's modulus in PMN-PT electrostrictive ceramics
Laboratoire de Physique et de Métrologie des Oscillateurs (UPR 3203),
Institut des Microtechniques de Franche-Comté (FR 0067 CNRS (associated with
Université de Franche-Comté)), 32 avenue de l'observatoire, 25044 Besançon Cedex,
2 Laboratoire de Science des Procédés Céramiques et de Traitements de Surface (UMR 6638), École Nationale Supérieure de Céramique Industrielle, 47 avenue Albert Thomas, 87065 Limoges Cedex, France
Corresponding author: email@example.com
Revised: 2 February 2001
Accepted: 22 February 2001
Published online: 15 June 2001
Some electrostrictive ceramics like 0.9 PMN-0.1 PT show large reduction of the apparent Young's modulus (more than 50%) as a function of the electric field. In the literature, this result is always obtained in the direction of the applied electric field. We performed some measurements of the elastic modulus in the direction perpendicular to the electric field and we found an unexpected small variation (less than 6%). This result shows that the apparent mechanical properties are much more dependent of the direction of the electrical field than known previously.
PACS: 62.20.-x – Mechanical properties of solids / 62.20.Dc – Elasticity, elastic constants
© EDP Sciences, 2001
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