Gaseous Illuminant Pyrotechnic Systems.
Abstract
Gaseous illuminant pyrotechnic systems (flares), which have distinct advantages over solid systems, were investigated and found to produce high luminous outputs. Gaseous boron-containing compounds (i.e., BF3 and B2H6) were added to these systems to produce intense specific visible emission. Their compatibilities, luminous efficiencies, and burning velocities are reported for a range of compositions. The systems producing high luminosity are 2H2 + OF2 + 4.5 vol % BF3 and 2H2 + 0.5 O2 + F2 + 4.5 vol % BF3. Theoretical adiabatic flame temperatures and equilibrium conditions are reported. Spectroscopic studies show that the bulk of the visible emission is generated by excited BO2 with a minor contribution by excited BO. The reaction mechanism in these flames are described. A preliminary systems analysis reveals that the all gaseous pyrotechnic system has a performance potential that compares favorably with that of Mg-NaNO3 flares.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1972
- Accession Number
- AD0746978
Entities
People
- Abraham D. Kirshenbaum
- Anthony J. Beardell
- Francis R. Taylor
Organizations
- Picatinny Arsenal