Center for Nondestructive Evaluation, Aerospace Engineering
Journal or Book Title
Prototype ultrasonic NDT transducers for use in immersion in coolants for small modular reactors have shown low signal to noise ratio. The reasons for the limitations in performance at high temperature are under investigation, and include changes in component properties. This current work seeks to quantify the issue of thermal expansion and degradation of the piezoelectric material in a transducer using a finite element method. The computational model represents an experimental set up for an ultrasonic transducer in a pulse-echo mode immersed in a liquid sodium coolant. Effect on transmitted and received ultrasonic signal due to elevated temperature (∼200oC) has been analysed.
This is an open access article under the CC BY-NC-ND license.
Bilgunde, Prathamesh N. and Bond, Leonard J., "Effect of Thermal Degradation on High Temperature Ultrasonic Transducer Performance in Small Modular Reactors" (2015). Center for Nondestructive Evaluation Publications. 32.