| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
PLUFS: The Controlled Pressure-Less Ultra-Fast and Ultra-High Temperature Sintering |
| Author(s) |
Thomas Benjamin Grippi, Eugene Olevsky, Elisa Torresani, Andrii Maximenko |
| On-Site Speaker (Planned) |
Eugene Olevsky |
| Abstract Scope |
A new setup called PLUFS (Pressure-Less Ultra-Fast Sintering) utilizing Spark Plasma Sintering (SPS) systems has been developed. This setup enables controlled ultra-high heating rates with parallel optical dilatometry. Initial experiments using this setup represent the first steps toward a comprehensive quantitative understanding of Ultrafast Heating Rate Sintering (UHRS) kinetics.
The temperature in the tube is regulated by the SPS current, allowing heating rates of up to 200K/s with a maximum temperature of 3000°C. Refractory ceramics, including carbides and oxides were nearly fully densified. Grain growth was mitigated by maintaining a heating rate of up to 50K/s, a maximum temperature of 2500°C, and temperature holding time of less than 2minutes. In-situ optical measurements enabled the retracing of density as a function of temperature.
A FEM model coupling various physical processes for heating and sintering has been employed to simulate the temperature distribution in the tooling and the densification of the sample. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Ceramics, Modeling and Simulation |