TY - JOUR
T1 - Temperature effect on all-inkjet-printed nanocomposite piezoresistive sensors for ultrasonics-based health monitoring
AU - Zhou, Pengyu
AU - Cao, Wuxiong
AU - Liao, Yaozhong
AU - Wang, Kai
AU - Yang, Xiongbin
AU - Yang, Jianwei
AU - Su, Yiyin
AU - Xu, Lei
AU - Zhou, Li min
AU - Zhang, Zhong
AU - Su, Zhongqing
PY - 2020/9/8
Y1 - 2020/9/8
N2 - 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.
AB - 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.
KW - A. Nano composites
KW - B. Thermal properties
KW - D. Ultrasonic testing
KW - E. Additive manufacturing
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=85086082369&partnerID=8YFLogxK
U2 - 10.1016/j.compscitech.2020.108273
DO - 10.1016/j.compscitech.2020.108273
M3 - Journal article
AN - SCOPUS:85086082369
SN - 0266-3538
VL - 197
JO - Composites Science and Technology
JF - Composites Science and Technology
M1 - 108273
ER -