| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Powder Materials Processing and Fundamental Understanding
|
| Presentation Title |
Residual Stress Mapping Using Neutrons of Large-Scale Samples (12-inch Diameter) Created by Electric Field Assisted Sintering |
| Author(s) |
Jorgen Rufner, Tiankai Yao, Arin Preston, Charles Aicher, Robert Byrnes, Chuting Tsai |
| On-Site Speaker (Planned) |
Jorgen Rufner |
| Abstract Scope |
Large size part scaling of material processes come with it many difficulties. One such factor is rooted in a material’s coefficient of thermal expansion (CTE). The amount of stress a part sees during sintering is not just rooted in the processing conditions but also the absolute size of the piece, as total expansion is dependent on the overall size of the object. Large scale electric field assisted sintering (EFAS), also known as spark plasma sintering (SPS) was performed on ½” – 1” thick by 12” diameter samples of ceramic and metal materials on Idaho National Laboratory’s DCS-800 system. The part’s residual stresses were spatially mapped using high energy neutron beam line techniques at ORNL’s Spallation Neutron Source. This data will be used to help build and develop modeling toolkits for improved process understanding and industrial scale up EFAS technology. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Characterization, Process Technology |