Campus Units

Civil, Construction and Environmental Engineering, Center for Nondestructive Evaluation (CNDE)

Document Type

Article

Publication Version

Accepted Manuscript

Publication Date

7-2018

Journal or Book Title

Ultrasonics

Volume

87

First Page

103

Last Page

111

DOI

10.1016/j.ultras.2018.02.007

Abstract

Ultrasonic transducers for high temperature (200 °C+) applications are a key enabling technology for advanced nuclear power systems and in a range of chemical and petro-chemical industries. Design, fabrication and optimization of such transducers using piezoelectric materials remains a challenge. In this work, experimental data-based analysis is performed to investigate the fundamental causal factors for the resonance characteristics of a piezoelectric disc at elevated temperatures. The effect of all ten temperature-dependent piezoelectric constants (ε33, ε11, d33, d31, d15, s11, s12, s13, s33, s44) is studied numerically on both the radial and thickness mode resonances of a piezoelectric disc. A sensitivity index is defined to quantify the effect of each of the temperature-dependent coefficients on the resonance modes of the modified lead zirconium titanate disc. The temperature dependence of s33 showed highest sensitivity towards the thickness resonance mode followed by ε33, s11, s13, s12, d31, d33, s44, ε11, and d15 in the decreasing order of the sensitivity index. For radial resonance modes, the temperature dependence of ε33 showed highest sensitivity index followed by s11, s12 and d31 coefficient. This numerical study demonstrates that the magnitude of d33 is not the sole factor that affects the resonance characteristics of the piezoelectric disc at high temperatures. It appears that there exists a complex interplay between various temperature dependent piezoelectric coefficients that causes reduction in the thickness mode resonance frequencies which is found to be agreement in with the experimental data at an elevated temperature.

Comments

This is a manuscript of an article published as Bilgunde, Prathamesh N., and Leonard J. Bond. "Resonance analysis of a high temperature piezoelectric disc for sensitivity characterization." Ultrasonics 87 (July 2018): 103-111. DOI: 10.1016/j.ultras.2018.02.007. Posted with permission.

Creative Commons License

Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.

Copyright Owner

Elsevier B.V.

Language

en

File Format

application/pdf

Available for download on Monday, July 01, 2019

Published Version

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