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Anisotropic and Cyclic Mechanical Properties of Piezoelectrics—compression Testing by J.M Calderon Moreno; F Guiu; M Meredith; M.J Reece; N.McN Alford; S.J Penn is a Materials Science article available to read on EtoBox.

What is Anisotropic and Cyclic Mechanical Properties of Piezoelectrics—compression Testing about?

The mechanical stressing of PZT produces irreversible deformation by the irreversible switching of 90 domains. This leads to highly anisotropic deformation behaviour for poled materials. The threshold stresses required to produce this switching are relatively small, <10 MPa. The strains that can be achieved, $1%, are relatively large for ceramic materials. The domain switching is a thermally activated process, so that the deformation behaviour is strain rate dependent. The cyclic stressing of PZT produces signi®cant incremental increases in the irreversible strain. This behaviour is the basis of electromechanical fatigue eects that cause the degradation of piezoelectric materials.

Who reads Anisotropic and Cyclic Mechanical Properties of Piezoelectrics—compression Testing?

Author

J.M Calderon Moreno; F Guiu; M Meredith; M.J Reece; N.McN Alford; S.J Penn

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0955-2219)

Published

1999

Language

EN

Field

Materials Science (Physical Sciences)