Metal based reactive materials for rapid destruction of chemical weapon agents
Abstract
This effort will start with synthesis of new reactive materials (RMs) customized to generate combustion environments and products capable to defeat chemical weapon agents (CWA). Multiple effects involving high combustion temperatures, catalytic reaction products, and aggressive halogenated gas species present in the products will be exploited to defeat CWA. RMs will be prepared mechanochemically. This approach uses readily available starting materials, is versatile and readily scalable. Prepared RMs will be characterized in laboratory experiments quantifying both their combustion performance and their potential to defeat CWA using a set of CWA simulants (CWAS) designed to imitate different types of CWA. The experimental conditions will be adjusted to quantify the importance of different counter-CWA effects: elevated temperatures, chemically active gas species, and catalytic surface reactions. The results of this characterization will serve to develop mechanistic models of combustion of new RMs, including generation of counter-CWA effects. It is expected that separate models will be required for different types of CWA represented by respective CWAS. Such models will be validated using additional, specifically designed experiments. Upon validation, the models will be incorporated into the state of the art computational fluid dynamics codes designed to describe complex, time-dependent and multidimensional processes for various energetic events. The objective of this effort is three-fold: 1. Design new RMs customized to effectively defeat CWA while not jeopardizing but improving the energetic performance of advanced munitions 2. Experimentally characterize both combustion and anti-CWA performance of new RMs in laboratory experiments designed to quantify their flame temperatures, burn rates, and anti-CWA efficiencies. Separating purely thermal anti-CWA effect from those caused by the generated gaseous and condensed combustion products will be a priority while designing the experiments and interpreting the experimental data. 3. Develop mechanistic combustion models for new RMs quantifying their anti-CWA efficiencies, while accounting for different inactivation mechanisms. Validation of the developed models will be an important part of this proposed effort.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 01, 2019
- Source ID
- HDTRA11910023
Entities
People
- Edward Dreyzin
Organizations
- Defense Threat Reduction Agency
- New Jersey Institute of Technology