Print Email Facebook Twitter In-situ poling and structurization of piezoelectric particulate composites Title In-situ poling and structurization of piezoelectric particulate composites Author Khanbareh, H. (TU Delft Novel Aerospace Materials; Material Innovation Institute (M2i); University of Bath) van der Zwaag, S. (TU Delft Novel Aerospace Materials) Groen, W.A. (TU Delft Novel Aerospace Materials; TNO) Date 2017 Abstract Composites of lead zirconate titanate particles in an epoxy matrix are prepared in the form of 0–3 and quasi 1–3 with different ceramic volume contents from 10% to 50%. Two different processing routes are tested. Firstly a conventional dielectrophoretic structuring is used to induce a chain-like particle configuration, followed by curing the matrix and poling at a high temperature and under a high voltage. Secondly a simultaneous combination of dielectrophoresis and poling is applied at room temperature while the polymer is in the liquid state followed by subsequent curing. This new processing route is practiced in an uncured thermoset system while the polymer matrix still possess a relatively high electrical conductivity. Composites with different degrees of alignment are produced by altering the magnitude of the applied electric field. A significant improvement in piezoelectric properties of quasi 1–3 composites can be achieved by a combination of dielectrophoretic alignment of the ceramic particles and poling process. It has been observed that the degree of structuring as well as the functional properties of the in-situ structured and poled composites enhance significantly compared to those of the conventionally manufactured structured composites. Improving the alignment quality enhances the piezoelectric properties of the particulate composites. Subject Dielectrophoresisin-situ polingpiezoelectric composites To reference this document use: http://resolver.tudelft.nl/uuid:cf494ccd-66bc-4e20-bfd2-1f24414fb093 DOI https://doi.org/10.1177/1045389X17689928 ISSN 1045-389X Source Journal of Intelligent Material Systems and Structures, 28 (8), 2467-2472 Part of collection Institutional Repository Document type journal article Rights © 2017 H. Khanbareh, S. van der Zwaag, W.A. Groen Files PDF 1045389x17689928.pdf 1.51 MB Close viewer /islandora/object/uuid:cf494ccd-66bc-4e20-bfd2-1f24414fb093/datastream/OBJ/view