Abstract

The material frame theory of the electroelastic effect of piezoelectric extensional mode resonators is reformulated so that the nonlinear piezoelectric constants dKλμ are the only third-order constants involved. In this form, it is applied to quartz, resulting in an independent determination of d122, d124, d134, and of the linear combinations (d144−2d113) and (d111−2d315). Results are in good agreement with values calculated from third-order stiffnesses and nonlinear piezoelectric e constants obtained by different experimental techniques.

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