TY - JOUR
T1 - Laser ignition of nano-composite energetic loose powders
AU - Stacy, Shawn C.
AU - Pantoya, Michelle L.
N1 - Copyright:
Copyright 2013 Elsevier B.V., All rights reserved.
PY - 2013/6
Y1 - 2013/6
N2 - Laser ignition experiments were conducted to better understand parameters that influence ignition of energetic materials. A Nd:YAG laser (10ms, 1.5J, 3mm spot diameter) was used to heat the top surface of an energetic powder composed of nanometric aluminum (Al) combined stoichiometrically with an oxidizer (copper oxide (CuO), iodine pentoxide (I2O5), polytetrafluoroethylene (C2F4), molybdenum trioxide (MoO3) or iron oxide (Fe2O3)). Ignition delay time was calculated as the difference between first light of the laser's flash lamp and the energetic material. Results show that laser energy required for ignition is dependent on pre-ignition reactions, phase change/decomposition temperatures, confinement, and laser absorbance.
AB - Laser ignition experiments were conducted to better understand parameters that influence ignition of energetic materials. A Nd:YAG laser (10ms, 1.5J, 3mm spot diameter) was used to heat the top surface of an energetic powder composed of nanometric aluminum (Al) combined stoichiometrically with an oxidizer (copper oxide (CuO), iodine pentoxide (I2O5), polytetrafluoroethylene (C2F4), molybdenum trioxide (MoO3) or iron oxide (Fe2O3)). Ignition delay time was calculated as the difference between first light of the laser's flash lamp and the energetic material. Results show that laser energy required for ignition is dependent on pre-ignition reactions, phase change/decomposition temperatures, confinement, and laser absorbance.
KW - Aluminum combustion
KW - Ignition mechanisms
KW - Percolation threshold
KW - Powder composite energetic materials
KW - Thermite
UR - http://www.scopus.com/inward/record.url?scp=84878940860&partnerID=8YFLogxK
U2 - 10.1002/prep.201200157
DO - 10.1002/prep.201200157
M3 - Article
AN - SCOPUS:84878940860
VL - 38
SP - 441
EP - 447
JO - Propellants, Explosives, Pyrotechnics
JF - Propellants, Explosives, Pyrotechnics
SN - 0721-3115
IS - 3
ER -