Dielectric and piezoelectric properties of PZT–cement composites

Lead zirconate titanate (PZT) and cement composites of 0–3 connectivity were produced using PZT of 30–90% by volume. The effects of PZT on dielectric and piezoelectric properties of the composites were then investigated. The dielectric constant (εr) of the composites was found to increase with incre...

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Bibliographic Details
Published in:Current applied physics 2007-07, Vol.7 (5), p.537-539
Main Author: Chaipanich, A.
Format: Article
Language:English
Subjects:
Cement
Composite
Dielectric constant
Piezoelectric coefficient
PZT
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Summary:Lead zirconate titanate (PZT) and cement composites of 0–3 connectivity were produced using PZT of 30–90% by volume. The effects of PZT on dielectric and piezoelectric properties of the composites were then investigated. The dielectric constant (εr) of the composites was found to increase with increasing PZT content. The εr value of 90% PZT composite obtained was 291 which is noticeably higher than that of PC sample (εr=79). The dielectric loss (tanδ) was found to decrease with PZT content and the tanδ value was lowest at 0.63 for 90% PZT composite. Piezoelectric coefficient (d33) was found to increase with PZT content as expected. However, the effects were most significant at two stages, first at 30% PZT volume content (14 pC/N) and then at very high PZT content (90% by volume) where d33 value reached 43 pC/N.
ISSN:1567-1739
1878-1675
DOI:10.1016/j.cap.2006.10.015