All eight electrostrictive, all three third-order dielectric, all thirteen third-order piezoelectric, and all fourteen third-order elastic constants of lithium niobate have been determined. Measurements for the electrostrictive constants were made by measuring the electric capacity in a selected direction when directed static stress was applied to the crystal. The third-order dielectric constants have been calculated from these measured electrostrictive constants and the measured capacitance as functions of the applied static electric field. The third-order piezoelectric and elastic constants have been determined together from the above-mentioned two kinds of measured constants and the measured velocities for small-amplitude ultrasonic waves as functions of severally applied stress and static electric fields.
|Number of pages||6|
|Journal||Ultrasonics Symposium Proceedings|
|Publication status||Published - 1986 Dec 1|
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