| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Printed Electronics and Additive Manufacturing: Advanced Functional Materials, Processing Concepts, and Emerging Applications
|
| Presentation Title |
An Alternative Processing Concept for Printed Strain Sensor with Enhanced Sensitivity |
| Author(s) |
Roberto Sabas Aga, Fahima Ouchen, Rachel Aga, Emily M Heckman, Carrie M Bartsch |
| On-Site Speaker (Planned) |
Roberto Sabas Aga |
| Abstract Scope |
Strain sensors have important applications in the fields of healthcare, structural monitoring, robotics, automotive and aerospace. The most widely used strain sensors are resistance strain gauges. They are typically designed as a serpentine pattern made of metal alloys, and their sensitivity is determined by the intrinsic piezoresistivity of the material. In this work, a different resistance strain gauge pattern with sensitivity that is not limited by the intrinsic material property is presented. The pattern is fabricated by first aerosol-jet printing a rectangular pad using a particle-free silver ink. It is defined by laser sintering followed by a solvent-wash process. The solvent-wash process removes material that is not exposed to the laser. By varying laser power, a cross pattern of two traces with different electrical resistance can be generated. The junctions formed by these two traces are sensitive to strain, and are utilized to make printed strain sensors with enhanced sensitivity. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Electronic Materials, Thin Films and Interfaces |