Title
Enhancing energy harvesting potential of (K,Na,Li)NbO3-epoxy composites via Li substitution
Author
Deutz, D.B.
Mascarenhas, N.T.
van der Zwaag, S.
Groen, W.A.
Publication year
2017
Abstract
In this study the influence of Li substitution on the piezoelectric performance of lead free K0.5Na0.5NbO3 (KNN)-epoxy composites is explored. Cuboid KNN piezoceramic particles modified with 0 to 12 mol.% of Li are prepared via a double calcination technique. The KNN-based particles are dispersed at 10 vol.% in an epoxy matrix to develop both random and dielectrophoretically structured composites. While the dielectric constant of these composites appears almost independent of Li content, the piezoelectric charge constant of structured composites peaks before the polymorphic phase transition, at 3 mol.% of Li. The enhanced energy harvesting capabilities of these composites make them an interesting choice for flexible energy generators.
Subject
Electronics
Industrial Innovation
Nano Technology
HOL - Holst
TS - Technical Sciences
To reference this document use:
http://resolver.tudelft.nl/uuid:63d2300c-1db2-4644-8519-435e9d07cafe
DOI
https://doi.org/10.1111/jace.14698
TNO identifier
862354
Publisher
Wiley
Source
Journal of the American Ceramic Society
Document type
article