Abstract
Piezoelectric coefficients hij characterise a link between an external mechanical strain applied to a sample and an electric field caused by the direct piezoelectric effect. At the converse piezoelectric effect, the piezoelectric coefficients hij characterise the link between a mechanical stress in the sample and electric displacement. Examples of the volume-fraction behaviour of the effective piezoelectric coefficients \(h_{ij}^{*}\) and the piezoelectric sensitivity associated with \(h_{ij}^{*}\) are analysed for the 2–2-type, 1–3-type and 0–3-type composites based on ferroelectrics. Relations between the piezoelectric coefficients \(h_{ij}^{*}\) and \(e_{ij}^{*}\) and some cases of the large anisotropy of \(h_{3j}^{*}\) are discussed for some composites.
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Topolov, V.Y., Bowen, C.R., Bisegna, P. (2018). Piezoelectric Coefficients \(\varvec{h}_{\varvec{ij}}^{\varvec{*}}\): New Opportunities to Improve Sensitivity. In: Piezo-Active Composites. Springer Series in Materials Science, vol 271. Springer, Cham. https://doi.org/10.1007/978-3-319-93928-5_5
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DOI: https://doi.org/10.1007/978-3-319-93928-5_5
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