About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials 2022
|
Presentation Title |
Characterization of Explosive Crystals with X-ray Micro and Nano-scale Tomography |
Author(s) |
Brian M. Patterson, Lindsey Kuettner, Steven Young, Larry Hill, Alexandra Burch, John Yeager |
On-Site Speaker (Planned) |
Brian M. Patterson |
Abstract Scope |
Explosives are a very exciting system to study in materials science. Not only for their chemical performance, but also the many challenges for scientists in understanding their morphology (voids and cracks), as well as their interfacial and mechanical performance. Explosive crystals have multiple length scales (10’s of nm scale through centimeter scale) that must be characterized and understood to predict their sensitivity, mechanical properties and performance. X-ray computed tomography on both the micro and nano-scale is being used to understand the salient features on these size scales. We will show nano-scale CT images of various lots of explosive powder and how the wormholes contained may affect the detonation performance, mechanical testing results of bicrystal experiments to understand interfaces between explosive crystals and the polymer binder, and show how dual-energy micro-CT imaging is used to segment plastic-bonded explosive composite materials to measure crystal distribution. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Powder Materials, Other |