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Heterogeneous Reaction of Boron in CHNO and CHNOF Environments Using High-Pressure Matrix Isolation

Published online by Cambridge University Press:  10 February 2011

Jane K. Rice  and
Thomas P. Russell
Jane K. Rice
Affiliation:
Naval Research Laboratory, Chemistry Division, Code 6110, Washington, D.C. 20375–5320 Presenting Author
Thomas P. Russell*
Affiliation:
Naval Research Laboratory, Chemistry Division, Code 6110, Washington, D.C. 20375–5320 Presenting Author
*
♣Author to Whom Correspondence Should Be Sent
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Abstract

We have developed a technique in which the decomposition of energetic materials can be initiated under high pressure conditions which resemble the pressures reached in the non-ideal detonation process. A gem anvil cell is cooled to cryogenic temperatures, 50 K, and remains in thermal contact with the cooling element throughout the experiment. Following initiation, the reaction products are rapidly cooled and quenched on the microsecond time scale and detected using FTIR spectroscopy. In the present study, binary mixtures of boron with energetic materials containing (CHNOF) and lacking fluorine (CHNO) are compared. The differences in the reaction products suggest that the presence of the fluorine substituent leads to a complete combustion of boron to B2O3. In the decomposition of binary mixtures lacking the fluorine substituent, the boron in appears to be unchanged following the reaction of the oxidizer. The observed products are compared to predict the affect of fluorine on the formation of boron combustion products in the two environments.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 418: Symposium GG – Decomposition, Combustion, and Detonation Chemistry of Energetic Materials , 1995 , 373
Copyright
Copyright © Materials Research Society 1996

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