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

D. B. Deutz; N. T. Mascarenhas; S. van der Zwaag; W. A. Groen

doi:10.1080/00150193.2017.1360110

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

D. B. Deutz^*, N. T. Mascarenhas, S. van der Zwaag, W. A. Groen

^*Corresponding author for this work

Novel Aerospace Materials

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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.

Original language	English
Pages (from-to)	68-74
Number of pages	7
Journal	Ferroelectrics
Volume	515
Issue number	1
DOIs	https://doi.org/10.1080/00150193.2017.1360110
Publication status	Published - 27 Jul 2017

Keywords

dielectrophoresis
Piezoelectric composites
poling

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10.1080/00150193.2017.1360110

00150193.2017.1360110Final published version, 1.32 MBLicence: CC BY

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

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.",

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AU - Deutz, D. B.

AU - Mascarenhas, N. T.

AU - van der Zwaag, S.

AU - Groen, W. A.

PY - 2017/7/27

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N2 - 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.

AB - 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.

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

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Keywords

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