Ignition of THKP and TKP Pyrotechnic Powders: Incorporating Reactive Chemical Processes into Predictive Models

Technical Report · Sat Mar 01 04:00:00 EST 2014

DOI:https://doi.org/10.2172/1204109· OSTI ID:1204109

Maharrey, Sean P. ^[1]; Erikson, William W ^[2]; Highley, Aaron M. ^[1]; Wiese-Smith, Deneille ^[1]; Kay, Jeffrey J ^[1]

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1. Sandia National Lab. (SNL-CA), Livermore, CA (United States)
2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

We have conducted Simultaneous Thermogravimetric Modulated Beam Mass Spectrometry (STMBMS) experiments on igniter/actuator pyrotechnic powders to characterize the reactive processes controlling the ignition and combustion behavior of these materials. The experiments showed a complex, interactive reaction manifold involving over ten reaction pathways. A reduced dimensionality reaction manifold was developed from the detailed 10-step manifold and is being incorporated into existing predictive modeling codes to simulate the performance of pyrotechnic powders for NW component development. The results from development of the detailed reaction manifold and reduced manifold are presented. The reduced reaction manifold has been successfully used by SNL/NM modelers to predict thermal ignition events in small-scale testing, validating our approach and improving the capability of predictive models.

• Research Organization: Sandia National Laboratories (SNL-CA), Livermore, CA (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA); USDOD
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1204109
• Report Number(s): SAND--2014-2496; 506229
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE