Properties of cement–sand-based piezoelectric composites with carbon nanotubes modification

Ping Zhao, Shifa Wang, Alec Kadlec, Zhaodong Li, Xudong Wang

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

Carbon nanotubes (CNTs) were dispersed in a cement–sand-based piezoelectric composite as conductive fillers to improve its poling efficiency. Specimens were prepared by mixing PZT powders, cement and sand with CNTs. The effect of CNTs ranging from 0 to 0.9 vol% on properties of the composite, including its piezoelectric coefficient, dielectric constant and loss, and sensing characteristic, were characterized. It was found that the addition of CNTs facilitated effective poling under a low electric field of 1 MV/m at room temperature and improved the piezoelectric and dielectric properties of the composite. The composite modified by CNTs achieved optimal properties when the CNTs content was 0.6 vol% and this was verified by the investigation of sensing effects of the composite through compressive tests.

Original languageEnglish (US)
Pages (from-to)15030-15034
Number of pages5
JournalCeramics International
Volume42
Issue number13
DOIs
StatePublished - Oct 2016

Keywords

  • B. Composites
  • C. Dielectric properties, piezoelectric properties
  • D. PZT

Fingerprint Dive into the research topics of 'Properties of cement–sand-based piezoelectric composites with carbon nanotubes modification'. Together they form a unique fingerprint.

Cite this