Combustion of thermite mixtures based on mechanically alloyed aluminum-iodine material

Document Type

Article

Publication Date

2-1-2016

Abstract

Halogen-containing reactive materials could be used for mitigating the spread of hazardous, active biological microorganisms aerosolized as a result of explosion. Here we present experimental results on combustion of mechanically alloyed aluminum-iodine (Al·I2) powder mixed with Fe2O3, CuO, MoO3, Bi2O3, and I2O5. The mixtures were compacted into pellets and ignited with a CO2 laser. High-speed video recording was used for observations. Mixtures of the Al·I2 powder with Fe2O3 did not ignite, while mixtures of this powder with the other oxides exhibited a self-sustained propagation of the combustion front with similar burn rates. Comparison experiments with a finer, micron-sized Al powder have shown a more rapid combustion of mixtures based on metal oxides and, in contrast, a slower and unsteady combustion of Al/I2O5 thermite. These observations are interpreted based on the analysis of reaction mechanisms.

Identifier

84957442797 (Scopus)

Publication Title

Combustion and Flame

External Full Text Location

https://doi.org/10.1016/j.combustflame.2015.11.014

e-ISSN

15562921

ISSN

00102180

First Page

164

Last Page

166

Volume

164

Fund Ref

U.S. Department of Defense

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