| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Research in Reduced Gravity
|
| Presentation Title |
Gravity Influence on the Distortion-Densification Trajectory for Liquid Phase Sintering |
| Author(s) |
Randall M. German, Elisa Torresani, Eugene Olevsky |
| On-Site Speaker (Planned) |
Randall M. German |
| Abstract Scope |
Sintering techniques are employed in the production of precise and complex engineering components. Usually the formation of a liquid phase accelerates sintering. However, a liquid phase can contribute to nonuniform dimensional changes that result in component distortion. Several factors can induce nonuniform shrinkage, including gravity. This analysis examines how the pore structure influences distortion during sintering. When sintering on Earth, low dihedral angle systems lose rigidity when the pores saturate, leading to a loss of component strength and distortion. In microgravity sintering, pores coalesce resulting in reduced capillarity, and densification halts at less than full density. Microgravity sintering can result in distortion with incomplete densification. Several factors are isolated to show the conditions where distortion with incomplete is expected based on microgravity experiments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Powder Materials, Shaping and Forming, Process Technology |