Time-resolved temperatures of shocked and detonating energetic materials
- Lawrence Livermore National Laboratory, Livermore, California 94551 (United States)
Chemical processes occurring in shock-compressed and detonating high explosives have been studied using fast time-resolved emission spectroscopy and a two-stage gas-gun. The spectral characteristics of emission from shock-compressed nitromethane, tetranitromethane and single crystals of pentaerythritol tetranitrate are typically very broad and structureless, likely representing thermal emission. Assuming the thermal emission from a gray-body, the emission intensity can be correlated to the temperature changes in shock-compressed and detonating high explosives. We report Chapman-Jouguet temperatures of 3800 K for nitromethane, 2950 K for tetranitromethane, and 4100 K for pentaerythritol tetranitrate. In this paper we also compare the data with the chemical equilibrium models. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 561796
- Report Number(s):
- CONF-950846--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 370; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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