| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Aging and Compatibility: Experimental and Computational Approaches to Enable Lifetime Predictions
|
| Presentation Title |
Kinetic assessments of TATB formulations after mild thermal aging |
| Author(s) |
Alexander Zimberg, Justin McAlister |
| On-Site Speaker (Planned) |
Alexander Zimberg |
| Abstract Scope |
Previous studies have determined that TATB formulations undergo various decomposition pathways; however, aging kinetics have yet to be well defined at storage-type conditions. Quantifying the decomposition kinetics and pathways of PBX 9502 across material lots will allow for improved modeling of aging dynamics during both thermal aging experiments, and forecasting system-level lifetimes. This study aims to track chemical decomposition markers, and outgassing that represent the changes in material performance over the lifetime of the system by subjecting uniform pressed parts to different thermal aging conditions up to 120C for different periods in an inert, hermetically sealed environment, followed by chemical analysis of solids and evolved gases. Monofurazan is used as a decomposition marker, and total outgassed species are analyzed to identify bulk decomposition analytes to support building the kinetic model. This study also seeks to confirm consistency in decomposition rates and products between legacy stockpile material and new production lots. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Characterization, Modeling and Simulation |