Title
Fabrication of piezoelectric composites using high-temperature dielectrophoresis
Author
Khaliq, J.
Hoeks, T.
Groen, P.
Publication year
2019
Abstract
In this paper, we present a method to create a highly sensitive piezoelectric quasi 1–3 composite using a thermoplastic material filled with a piezoelectric powder. An up-scalable high-temperature dielectrophoresis (DEP) process is used to manufacture the quasi 1–3 piezoelectric polymer-ceramic composites. For this work, thermoplastic cyclic butylene terephthalate (CBT) is used as a polymer matrix and PZT (lead zirconium titanate) ceramic powder is chosen as the piezoelectric active filler material. At high temperatures, the polymer is melted to provide a liquid medium to align the piezoelectric particles using the DEP process inside the molten matrix. The resulting distribution of aligned particles is frozen upon cooling the composite down to room temperature in as little as 10 min. A maximum piezoelectric voltage sensitivity (g33) value of 54 ± 4 mV·m/N is reported for the composite with 10 vol% PZT, which is twice the value calculated for PZT based ceramics
Subject
High-temperature dielectrophoresis
Piezoelectric
Sensors
Thermoplastic composites
Mechanics, Materials and Structures
HOL - Holst
To reference this document use:
http://resolver.tudelft.nl/uuid:5f3edf2d-0013-490c-8c00-d3576c9136aa
DOI
https://doi.org/10.3390/jmmp3030077
TNO identifier
955118
Publisher
MDPI Multidisciplinary Digital Publishing Institute
ISSN
2504-4494
Source
Journal of Manufacturing and Materials Processing, 3 (3)
Document type
article