Development of BS-PT based high temperature ultrasonic transducer

Prathamesh Bilgunde; Leonard J. Bond

doi:10.1117/12.2260324

5 April 2017 Development of BS-PT based high temperature ultrasonic transducer

Prathamesh Bilgunde, Leonard J. Bond

Proceedings Volume 10170, Health Monitoring of Structural and Biological Systems 2017; 1017014 (2017) https://doi.org/10.1117/12.2260324
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2017, Portland, Oregon, United States

Abstract

High temperature (HT) environment in liquid metal cooled reactors poses major challenges towards development of ultrasonic transducer which is a key enabling technology for safety of reactors. In the current work, BS-PT (BiScO3- PbTiO3) piezoelectric material based ultrasonic transducer is proposed for the structural health monitoring at HT. Physics based model using finite element method simulates effect of temperature increase on the transduction ability of the BSPT piezoelectric material. Pulse-echo contact measurements are performed up to 260C which is the hot stand by temperature for liquid metal cooled reactors, to study the performance of the acoustic coupling agent and the BS-PT piezoelectric material bonded to a low-carbon steel sample. Experimental contact measurements indicate 6dB reduction in amplitude of the first backwall echo from 20C to 260C. Also, 0.1 MHz reduction in the fundamental and third harmonic resonance is observed in the spectral analysis of the first backwall echo.

Citation Download Citation

Prathamesh Bilgunde and Leonard J. Bond "Development of BS-PT based high temperature ultrasonic transducer", Proc. SPIE 10170, Health Monitoring of Structural and Biological Systems 2017, 1017014 (5 April 2017); https://doi.org/10.1117/12.2260324

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