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http://hdl.handle.net/10397/106347
Title: | Temperature effect on all-inkjet-printed nanocomposite piezoresistive sensors for ultrasonics-based health monitoring | Authors: | Zhou, P Cao, W Liao, Y Wang, K Yang, X Yang, J Su, Y Xu, L Zhou, LM Zhang, Z Su, Z |
Issue Date: | 8-Sep-2020 | Source: | Composites science and technology, 8 Sept 2020, v. 197, 108273 | Abstract: | The sensing performance of nanocomposite piezoresistive sensors in acquiring broadband acousto-ultrasonic wave signals is scrutinized in an extensive regime of temperature variation from −60 to 150 °C, which spans the thermal extremes undergone by most aircraft and spacecraft. Ultralight and flexible, the sensors are all-inkjet-printed using a drop-on-demand additive manufacturing approach, and then optimized sensitive to the ultraweak disturbance induced by acousto-ultrasonic waves in virtue of quantum tunneling effect. Under high-intensity thermal cycles from −60 to 150 °C, the sensors have proven stability and accuracy in responding to signals in a broad band from static to half a megahertz. Compared with conventional broadband sensors such as piezoelectric wafers, this genre of inkjet-printed nanocomposite sensors avoids the influence of increased dielectric permittivity during the measurement of high-frequency signals at elevated temperatures. Use of the sensors for characterizing undersized cracks in a typical aerospace structural component under acute temperature variation has spotlighted the alluring application potentials of the all-inkjet-printed nanocomposite sensors in implementing in-situ structural health monitoring for key aircraft and spacecraft components. | Keywords: | A. Nano composites B. Thermal properties D. Ultrasonic testing E. Additive manufacturing Structural health monitoring |
Publisher: | Elsevier Ltd | Journal: | Composites science and technology | ISSN: | 0266-3538 | EISSN: | 1879-1050 | DOI: | 10.1016/j.compscitech.2020.108273 | Rights: | © 2020 Elsevier Ltd. All rights reserved. © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The following publication Zhou, P., Cao, W., Liao, Y., Wang, K., Yang, X., Yang, J., ... & Su, Z. (2020). Temperature effect on all-inkjet-printed nanocomposite piezoresistive sensors for ultrasonics-based health monitoring. Composites Science and Technology, 197, 108273 is available at https://doi.org/10.1016/j.compscitech.2020.108273. |
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Zhou_Temperature_Effect_All-Inkjet-Printed.pdf | Pre-Published version | 2.61 MB | Adobe PDF | View/Open |
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