Critical temperature analysis for a hemispherical charge of a binary explosive

Conference · Sun Jan 01 00:00:00 EST 1989

OSTI ID:5549175

Pickard, J. M.

The adiabatic induction period for a hemispherical charge of a binary explosive (13.9 wt % pentaerythritol tetranitrate (PETN) and 86.1 wt % plastic bonded explosive (PBX9407)) enclosed in an aluminum/ceramic housing was measured by conventional cook-off tests over the temperature range of 150 to 250{degree}C. Simulated adiabatic induction time curves for an intimate mixture of PETN and PBX9407 were recorded with accelerating rate calorimetry (ARC). Apparent heat-transfer coefficients approximating conductive and convective modes of heat-transfer were calculated from cooling curves recorded for the charge housing loaded with mock explosive powder (diphenyl silane diol) and water, respectively. Predicted critical temperatures based on models utilizing Semenov and Frank-Kamenetskii boundary constraints were in good agreement with experimental results determined from the cook-off test. 6 refs., 5 figs., 3 tabs.

• Research Organization: EG and G Mound Applied Technologies, Miamisburg, OH (USA)
• Sponsoring Organization: DOE/DP
• DOE Contract Number: AC04-88DP43495
• OSTI ID: 5549175
• Report Number(s): MLM-3608(OP); CONF-8909169-3; ON: DE90001447
• Resource Relation: Conference: 18. North American Thermal Analysis Society conference, San Diego, CA (USA), 24-27 Sep 1989
• Country of Publication: United States
• Language: English

Related Subjects

45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
CHEMICAL EXPLOSIVES
IGNITION
ALUMINIUM
CALORIMETRY
CERAMICS
HEAT TRANSFER
KINETICS
PETN
STABILITY
ELEMENTS
ENERGY TRANSFER
ESTERS
EXPLOSIVES
METALS
NITRATES
NITRIC ACID ESTERS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
450100* - Military Technology
Weaponry
& National Defense- Chemical Explosions & Explosives