Poling piezoelectric (K,Na,Li)NbO3-polydimethylsiloxane composites

Title

Poling piezoelectric (K,Na,Li)NbO3-polydimethylsiloxane composites

 Author

Deutz, D.B. (TU Delft Novel Aerospace Materials)
Mascarenhas, N.T. (TU Delft Novel Aerospace Materials)
van der Zwaag, S. (TU Delft Novel Aerospace Materials) ORCID 0000-0001-5085-0255
Groen, W.A. (TU Delft Novel Aerospace Materials; TNO) ORCID 0000-0003-4215-2064

 Date

2017-07-27

 Abstract

Composites of aligned (K,Na,Li)NbO3 (KNLN) piezoceramic particles in a PDMS polymer matrix are presented as promising materials for flexible sensors and energy harvesters. Their ease of processing is matched with a relatively high damage tolerance and piezoelectric performance at low dielectric loss. To maximize piezoelectric performance, the effective poling conditions for dielectrophoretically structured KNLN-PDMS composites are studied, and compared with random composites. Effective poling is identified at 7.5 kV/mm, for 6 min at 150°C in structured composites. The structured composites demonstrate improved piezoelectric performance, with respect to random composites, while retaining the low stiffness of the PDMS polymer matrix.


 Subject

dielectrophoresis
Piezoelectric composites
poling

 To reference this document use:

http://resolver.tudelft.nl/uuid:59b74f09-7aea-45e5-9a28-8806e841582d

 DOI

https://doi.org/10.1080/00150193.2017.1360110

 ISSN

0015-0193

 Source

Ferroelectrics, 515 (1), 68-74

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2017 D.B. Deutz, N.T. Mascarenhas, S. van der Zwaag, W.A. Groen
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