Printed Electronics and Additive Manufacturing: Functional Materials, Processing Techniques, and Emerging Applications: Poster Session
Sponsored by: TMS Functional Materials Division, TMS: Thin Films and Interfaces Committee
Program Organizers: Tolga Aytug, Oak Ridge National Laboratory; Pooran Joshi, Elbit Systems of America; Rahul Panat, Carnegie Mellon University; Yong Lin Kong, University of Utah; Konstantinos Sierros, West Virginia University; Changyong Cao, Case Western Reserve University ; Dave Estrada, Boise State University; Ravindra Nuggehalli, New Jersey Institute of Technology
Monday 5:30 PM
March 20, 2023
Room: Exhibit Hall G
Location: SDCC
3-D Printed Temperature Sensors: Samiha Hossain1; Airefetalo Sadoh1; Cameron von Tulganburg1; Richard Daly1; Balraj Mani1; Nuggehalli Ravindra1; 1New Jersey Institute of Technology
Polymer based sensors have significant advantages over other competitive remote, long-gauge sensing technologies based on their remarkable electromechanical behavior and excellent reinforcement properties. The need for passive sensors to monitor temperature variance has been critical in many packaging applications. In this study, temperature sensing patches are prepared using Polyaniline (PANI) doped with a protonating agent on substrates for support. This simple system is dependent on doped PANI exhibiting strong thermochromic response in the UV−vis−NIR spectra (440 nm) at around 280 K (6.85 °C). This temperature range makes it ideal for cold transport applications, especially, food and biologics transport. The role of conformational changes in the polymer chain along with the potential role of dopants, optimal device structure and further application in industry are discussed.
Multi-material Micromixing for On-demand Manufacture of Modular Soft Robotic Actuators: Craig Joiner1; Derrick Banerjee1; John Burke1; Edward Sabolsky1; Konstantinos Sierros1; 1West Virginia University
Smart soft robotics is a growing field of research due to its potential for multifunctionality and wide range of applications impractical for rigid parts. Approaching the design and manufacture of these soft robotic tools becomes challenging when an unfamiliar and unpredictable environment is considered. Our focus is on the design of modular, 3D-printable, pneumatically-actuated soft silicone elastomer hinges capable of different means of actuation dependent on geometry, dimensions, stiffness, and applied pressure. Using a series of these hinges and building blocks, custom soft actuators were produced and characterized for their motion and load capacities. Traditional soft robotic manufacturing methods do not allow for the flexibility in design required, therefore direct ink writing techniques were utilized for fabrication. We developed a printing process with a custom-designed multi-material micromixer that can manipulate material properties of particle-filled silicone elastomeric thermosets on-the-fly to influence one or more of the dependencies for actuation.
Permanent Magnet Integrated Shock Absorber and Electric Generator: Richard Daly1; B.S. Mani1; Nuggehalli Ravindra1; 1New Jersey Institute of Technology
Traditionally, most of the mechanically driven systems utilize contact dependent approaches. They have hosts of defects, including the need for lubrication to minimize friction, noise management, and a restricted operating life. The magnetic augmentation of existing devices within a mechanical system can resolve these issues by introducing a near-contactless method of operation. The design in focus is fundamentally a piston-styled shock absorber that is capable of generating energy as a product of applied force. The system absorbs shock in two separate manner. The first is due to a series of repelling magnets oriented on two separate plates that oscillate in closeness depending on the applied force. The second is via the internal section of the piston, where an incompressible fluid is forced to flow through small holes in a magnetically fitted oscillating plate. By placing multi-layered, enameled copper coils surrounding the magnets’ direction of translation in both methods of shock absorption, electric currents can be generated- thus inducing passive energy generation as a product of shock absorption. In addition, this system is constructed to be variably recursive; in essence, any number of devices can be oriented, so they perform together with small variations in structure depending on the location of each device. The current prototype focuses on a vertically recursive model for applications concerning constrains in horizontal surface area.