About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
|
Accelerated Discovery and Qualification of Nuclear Materials for Energy Applications
|
Presentation Title |
Manufacturing Process Optimization of High-density LEU Targets for Mo-99 Production |
Author(s) |
Kinam Kim, Tae Won Cho, Sunghwan Kim, Kyuhong Lee, Yong Jin Jeong |
On-Site Speaker (Planned) |
Kinam Kim |
Abstract Scope |
Mo-99 producers have been attempting to replace conventional highly enriched uranium (HEU) targets with low enriched uranium (LEU) targets by international non-proliferation policies. As a result, it is necessary to develop high-uranium-density targets with LEU to improve the Mo-99 production efficiency of LEU targets. Korea Atomic Energy Research Institute (KAERI) has been developing high-density LEU targets using atomized U-Al alloy powder. We successfully mass-produced uranium alloy powder for high-density targets through centrifugal atomization and fabricated high-density targets with a uranium density of 3.2 and 4.1 gU/cm3. The improvement in thermomechanical treatment (hot rolling + heat treatment) process was however needed because defects resulted from the meat expansion during phase transformation occurred on the surfaces of high density targets with 4.1 gU/cm3. In this work, we fabricated high density targets under various process conditions and analyzed them through destructive and non-destructive examinations in order to optimize the manufacturing process. |
Proceedings Inclusion? |
Planned: |