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A method to determine the aging rate of thick-film PZT layers

A method to determine the aging rate of thick-film PZT layers
A method to determine the aging rate of thick-film PZT layers
Screen printed lead zirconate titanate (PZT) layers offer possibilities for both sensing and actuation applications. PZT materials are known to suffer a long-term ageing process that can affect their performance as functional materials. Measuring the rate of this ageing on thick-film piezoelectric materials is difficult due to the presence of a substrate, and suitable methods have not been reported in the literature. A technique for measuring the ageing rate of the d31 coefficient is described in this paper, and includes a composite test structure based on a steel substrate. The d31 coefficient is found to age at ?4.4% per time decade after polarization with no external stresses (for PZT-5H, a soft piezoelectric material). A method is also presented for measuring the ageing of the dielectric constant, K33, and this is found to have an ageing rate of ?1.34% per time decade. Techniques for exploring cyclical stress induced ageing of d31 are further described, and an interesting linear ageing characteristic is demonstrated.
0957-0233
663-670
Jones, P Glynne
2f3582b1-76f9-4419-ab56-5015a6d91f09
Beeby, S P
ba565001-2812-4300-89f1-fe5a437ecb0d
White, N M
c7be4c26-e419-4e5c-9420-09fc02e2ac9c
Jones, P Glynne
2f3582b1-76f9-4419-ab56-5015a6d91f09
Beeby, S P
ba565001-2812-4300-89f1-fe5a437ecb0d
White, N M
c7be4c26-e419-4e5c-9420-09fc02e2ac9c

Jones, P Glynne, Beeby, S P and White, N M (2001) A method to determine the aging rate of thick-film PZT layers Measurement Science and Technology, 12, pp. 663-670.

Record type: Article

Abstract

Screen printed lead zirconate titanate (PZT) layers offer possibilities for both sensing and actuation applications. PZT materials are known to suffer a long-term ageing process that can affect their performance as functional materials. Measuring the rate of this ageing on thick-film piezoelectric materials is difficult due to the presence of a substrate, and suitable methods have not been reported in the literature. A technique for measuring the ageing rate of the d31 coefficient is described in this paper, and includes a composite test structure based on a steel substrate. The d31 coefficient is found to age at ?4.4% per time decade after polarization with no external stresses (for PZT-5H, a soft piezoelectric material). A method is also presented for measuring the ageing of the dielectric constant, K33, and this is found to have an ageing rate of ?1.34% per time decade. Techniques for exploring cyclical stress induced ageing of d31 are further described, and an interesting linear ageing characteristic is demonstrated.

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Published date: 2001
Organisations: EEE

Identifiers

Local EPrints ID: 256124
URI: http://eprints.soton.ac.uk/id/eprint/256124
ISSN: 0957-0233
PURE UUID: 7f811b23-46f8-4da0-a172-5c7e6eca2568
ORCID for S P Beeby: ORCID iD orcid.org/0000-0002-0800-1759
ORCID for N M White: ORCID iD orcid.org/0000-0003-1532-6452

Catalogue record

Date deposited: 31 Oct 2001
Last modified: 18 Jul 2017 09:48

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Contributors

Author: P Glynne Jones
Author: S P Beeby ORCID iD
Author: N M White ORCID iD

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