Title
Poling piezoelectric (K,Na,Li)NbO3-polydimethylsiloxane composites
Author
Deutz, D.B.
Mascarenhas, N.T.
van der Zwaag, S.
Groen, W.A.
Publication year
2017
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
Industrial Innovation
2015 Nano Technology
HOL - Holst
TS - Technical Sciences
To reference this document use:
http://resolver.tudelft.nl/uuid:8843dc85-1297-4ff4-8165-ea75e15f5161
DOI
https://doi.org/10.1080/00150193.2017.1360110
TNO identifier
781895
ISSN
0015-0193
Source
Ferroelectrics, 515 (515), 68-74
Document type
article