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Microenergetic shock initiation studies on deposited films of PETN

AIP Conference Proceedings

Tappan, Alexander S.; Wixom, Ryan R.; Trott, Wayne T.; Long, Gregory L.; Knepper, Robert; Brundage, Aaron B.; Jones, David A.

Films of the high explosive PETN (pentaerythritol tetranitrate) up to 500-μm thick have been deposited through physical vapor deposition, with the intent of creating well-defined samples for shock-initiation studies. PETN films were characterized with microscopy, x-ray diffraction, and focused ion beam nanotomography. These high-density films were subjected to strong shocks in both the out-of-plane and in-plane orientations. Initiation behavior was monitored with high-speed framing and streak camera photography. Direct initiation with a donor explosive (either RDX with binder, or CL-20 with binder) was possible in both orientations, but with the addition of a thin aluminum buffer plate (in-plane configuration only), initiation proved to be difficult. Initiation was possible with an explosively-driven 0.13-mm thick Kapton flyer and direct observation of initiation behavior was examined using streak camera photography at different flyer velocities. Models of this configuration were created using the shock physics code CTH. © 2009 American Institute of Physics.

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TYPE Conference YEAR 2009
ScopusOSTI

High speed (GHZ), ultra-high pressure (GPA) sensor array fabricated in integrated CMOS+MEMS process

Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)

Okandan, Murat O.; Olsson, Roy H.; Baker, Michael; Resnick, Paul J.; Hill, Thomas A.; Lackey, Chad; Pearson, Sean P.; Castaneda, Jaime N.; Trott, Wayne T.; Jones, David A.

In order to observe and quantify pressure levels generated during testing of energetic materials, a sensor array with high temporal resolution (∼1 ns) and extremely high pressure range (> 1 GPa) is needed. We have developed such a sensor array which utilizes a novel integrated high performance CMOS+MEMS process. ©2009 IEEE.

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TYPE Conference YEAR 2009
ScopusOSTIDOI
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11 Results