Fabrication of 1-3 Cement-Based Piezoelectric Ultrasonic Sensors for NDE Applications

Xin Chun Xie; Jin Sen Zhang; Dong Yu Xu; Xiao Jing Guo; Fei Sha; Shi Feng Huang

doi:10.4028/www.scientific.net/AMM.575.580

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 575Fabrication of 1-3 Cement-Based Piezoelectric...

Fabrication of 1-3 Cement-Based Piezoelectric Ultrasonic Sensors for NDE Applications

Abstract:

This paper described fabrication and comparison of embedded ultrasonic sensors for NDE applications. A 1-3 cement-based piezoelectric composite was used as the sensing element of the ultrasonic sensor. As a front matching layer between test material and piezoelectric materials, cement/epoxy resin was selected. In order to make the backing materials for sensors had enough acoustic attenuation performance, the backing material of sensors doped with tungsten powder. When the mass ratio of tungsten/cement backing was two and the thickness of cement/epoxy resin front-face matching was 3mm, the 1-3 cement-based piezoelectric ultrasonic sensor showed a significant enhancement in both relative pulse-echo sensitivity and-6dB bandwidth. These promising results suggested the great potential for developing high-performance ultrasonic sensors using the 1-3 cement-based piezoelectric composite.

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Periodical:

Applied Mechanics and Materials (Volume 575)

Pages:

580-584

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.575.580

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Online since:

June 2014

Authors:

Xin Chun Xie*, Jin Sen Zhang, Dong Yu Xu, Xiao Jing Guo, Fei Sha, Shi Feng Huang

Keywords:

1-3 Cement-Based Piezoelectric Composite, Non-Destructive Evaluation, Ultrasonic Sensor

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