Fabrication of piezoelectric composites using high-temperature dielectrophoresis

Jibran Khaliq (Corresponding author), Theo Hoeks, Pim Groen

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)
14 Downloads (Pure)

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.

Original languageEnglish
Article number77
JournalJournal of Manufacturing and Materials Processing
Volume3
Issue number3
DOIs
Publication statusPublished - Sep 2019

Keywords

  • High-temperature dielectrophoresis
  • Piezoelectric
  • Sensors
  • Thermoplastic composites

Fingerprint Dive into the research topics of 'Fabrication of piezoelectric composites using high-temperature dielectrophoresis'. Together they form a unique fingerprint.

  • Cite this