Ferroelectric Hysteresis Properties of 0–3 Lead-Free Barium Zirconate Titanate-Portland Cement Composites
- 1 January 2012
- journal article
- research article
- Published by Informa UK Limited in Ferroelectrics Letters Section
- Vol. 39 (1-3), 15-19
- https://doi.org/10.1080/07315171.2012.707029
Abstract
Cement-based 0–3 type lead-free piezoelectric composites, made from barium zirconate titanate (BZT) ceramic particles and Portland cement (PC) are developed for smart or intelligent structure in civil engineering. Ferroelectric hysteresis properties of the composites with different BZT contents at 40–70% by volume were then investigated. The results showed that the ferroelectric hysteresis loops can be seen for all composites. The “apparent” remnant polarization (Pr′ ) was found to increase with increasing BZT content. The “apparent” coercive field (Ec′ ) was found to decrease with increasing BZT content from 11.0 to 7.30 μC/cm2 at 15 kV/cm when BZT volume content used was 40% and 70% respectively.Keywords
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