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IEICE TRANSACTIONS on transactions

Measurements for Piezoelectric Ceramic Properties Applied Compressive Stress Parallel to the Polar Axis

Takeshi INOUE, Sadayuki TAKAHASHI

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Summary :

A method has been investigated for calculating the material constants for piezoelectric ceramics under the one-dimensional stress, using a bolted Langevin resonator, which can apply compressive stress to the ceramics. For this method, the piezoelectric, dielectric and elastic constants under the static compressive stress can be determined, by measuring the resonant and antiresonant frequencies and the capacitance at constant stress for the resonator, in the same method as used under stress-free condition. Also, four types of lead zirconate titanate piezoelectric ceramics for transducers, NEPEC-1, NEPEC-6, NEPEC-63 and NEPEC-21, have been measured as a function of one-dimensional compressive stress parallel to the polar axis up to a 176 MPa maximum. The hysteresis loops for dielectric constants 0, electromechanical coupling factors k33, piezoelectric constants d33 and g33, and elastic constants and for these ceramics have been presented. These measurement results show inclinations analogous to those reported by Krueger and Meeks. The experimental feasibility and practicability of using a bolted Langevin resonator to measure the piezoelectric ceramic material constants have been established.

Publication
IEICE TRANSACTIONS on transactions Vol.E69-E No.11 pp.1180-1188
Publication Date
1986/11/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Acoustics

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