Design and Testing of a Removable Cold Sintering Heating Jacket

Micah Fletcher Rose-Hulman Institute of Technology
Faculty Sponsor(s): Daniel Marincel Rose-Hulman Institute of Technology
Integration of carbon-based materials into ceramics can create new composites with unique structural, thermal, and electrical properties. In the past, it has been extremely difficult to form these composites, as the sintering temperature is significantly above the decomposition temperature of carbon-based materials. However, with the cold sintering process it is now possible to form these composites at a reduced temperature of 300 °C and pressure of 400 MPa. Wetting with a solvent decreases the energy required for particles and ions to rearrange, allowing the sintering process to occur at a lower temperature.
In this project, we have designed and built a heating jacket, which allows us to heat the die to an internal temperature of 300 °C in a mechanical press. NiCr wire heats the inner metal wall of the jacket with even heat transfer to the die. The wire has Kapton tape for electrical insulation and mineral wool for thermal insulation. The jacket is removable to allow for flexible use of the die and the mechanical press. Initial testing shows the Kapton withstood heating to 400 °C for over 2 hours without any degradation. The electrical testing for the current required to bring the die to 300 °C and the jacket to 400°C will be presented.
Chemistry
Oral Presentation

When & Where

11:15 AM
Gallahue Hall 101