About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Printed Electronics and Additive Manufacturing: Functional Materials, Processing Techniques, and Emerging Applications
|
Presentation Title |
All-printed and Broadband Piezoelectric Force Sensors for Structural Health Monitoring |
Author(s) |
Zhangxian Deng |
On-Site Speaker (Planned) |
Zhangxian Deng |
Abstract Scope |
Piezoelectric materials build up significant surface electrical charges when stressed. Dynamic piezoelectric force sensors have been developed by correlating the force magnitude with the resulting charge density. Due to the severe electrical charge leakage, piezoelectric force currently cannot detect quasi-static forces. This study developed an innovative broadband force sensor consisting of interdigitated silver electrodes deposited on piezoelectric polymers, in which the dynamic and static force components are detected through the piezoelectric response and the electrical impedance across the electrodes, respectively. To enhance the uniformity of the piezoelectric films resulting from direct ink writing, ink preparation and thermal curing were first systematically investigated. Electrical poling was then analyzed to maximize the piezoelectric coupling effect. The printed piezoelectric sensor was eventually validated using commercial strain-gauge- or quartz-based sensors from DC to 1 kHz. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Characterization, Thin Films and Interfaces |