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RAP opportunity at Air Force Science and Technology Fellowship Program     AF STFP

Probing Interfacial and Micro-structural Influences on Detonation Chemistry, Sensitivity, and Resilience of Energetic Materials


Munitions Directorate, RW/Ordnance Division

opportunity location
13.45.02.C0904 Eglin Air Force Base, FL 325426810


name email phone
Claron James Ridge 850 882-2075


Most energetic materials, specifically explosives, are composites. Composite energetics material properties are, like most composites, dominated by the interaction of their constituents. The interplay of organic crystals, polymer binders, metal particles, and oxidizers creates a large and unpredictable parameter space when combined in a single material. It has been shown, for instance, that even a change in void structure for a single component explosive can greatly influence the initiability, among other things. Everything from chemical reactivity under shock loading to mechanical failure under quasistatic compression can be influenced and, if understood, controlled by changing how the constituents interact or are structured.

It is the goal of this research to investigate the micro and interfacial structure of composite explosives and relate it to reactivity of the constituents and bulk phase material properties. In-house experimental capabilities include FIB, SEM, TEM, and micro-CT for structural characterization down to the nanoscale. Additionally, thermochemical analysis is also facilitated via DSC, TGA, GCMS, HPLC, and small-scale sensitivity/safety testing. Mechanical tasting at various strain rates can be accomplished via internal collaboration. Finally, detonation characterization is possible through both in-house and external collaboration (including detonation calorimetry locally, and direct in-situ x-ray probes through DOE collaborations).

key words
energetic materials; explosives; detonation; physical chemistry; electron microscopy; surface science; metal combustion


Citizenship:  Open to U.S. citizens
Level:  Open to Postdoctoral and Senior applicants


Base Stipend Travel Allotment Supplementation
$95,000.00 $5,000.00

Experience Supplement:
Postdoctoral and Senior Associates will receive an appropriately higher stipend based on the number of years of experience past their PhD.

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