Piezoelectric Moduli of Piezoelectric Ceramics |
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| Authors: | Ce-Wen Nan&dagger ,David R. Clarke&# |
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| Affiliation: | Materials Department, College of Engineering, University of California, Santa Barbara, California 93106–5050 |
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| Abstract: | The effective piezoelectric moduli of polycrystalline piezoelectric ceramics are calculated using a straightforward averaging method (a Voigt average) and a more rigorous effective-medium theory recently developed for piezocomposites. The effects of polarization orientation within each crystallographic domain and the shape of the domain on the effective piezoelectric moduli are presented. The effective-medium theory, which includes full coupling of the elastic and dielectric interactions, gives results in reasonable agreement with experimental ones. |
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