TY - JOUR
T1 - Combustion of thermite mixtures based on mechanically alloyed aluminum-iodine material
AU - Guerrero, Sergio E.
AU - Dreizin, Edward L.
AU - Shafirovich, Evgeny
N1 - Funding Information:
This research was supported by the U.S. Department of Defense (Grants no. W911NF-12-1-0056 and no. W911NF-14-1-0034 ; Grant Officer's Representative: Dr. Ralph A. Anthenien of the Army Research Office; Co-GOR: Dr. Clifford D. Bedford of the Office of Naval Research).
Publisher Copyright:
© 2015 The Combustion Institute.
PY - 2016/2/1
Y1 - 2016/2/1
N2 - 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.
AB - 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.
KW - Biocidal reactive materials
KW - Heterogeneous combustion
KW - Laser ignition
KW - Thermites
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U2 - 10.1016/j.combustflame.2015.11.014
DO - 10.1016/j.combustflame.2015.11.014
M3 - Article
AN - SCOPUS:84957442797
SN - 0010-2180
VL - 164
SP - 164
EP - 166
JO - Combustion and Flame
JF - Combustion and Flame
ER -