The effect of aluminum on the emission spectra of solid propellants in the 7.5 to 15.0 micron region.
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Authors
Habicht, Roland Franz.
Subjects
Solid propellant/spectral analysis
IR spectra/emission
Aluminum
Atmospheric window
IR spectra/emission
Aluminum
Atmospheric window
Advisors
Spencer, Glenn H.
Date of Issue
1967-06
Date
June 1967
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The effect of aluminum in solid propellants on the emission of combustion energy in the 7.5-15.0 micron region of the infrared spectrum was measured. The presence of an "atmospheric window" (8.0-13.0 microns) allows energy in this region to be transmitted over long atmospheric paths with minimal attenuation. The 7.5-15.0 micron spectra of three propellants, similar in composition except for aluminum content, were recorded on an oscillogram. The deflection of the oscillogram at certain wavelengths was then compared to the oscillogram of a 600°C blackbody. The apparent spectral radiance for each propellant at these wavelengths was then computed. Results indicated that in the aluminized propellants a relatively intense band occurred at about 10.3 microns. No evidence for such a band was found in the control propellant which contained no aluminum. Results also showed that the intensity of the HzO band was inversely proportional to the aluminum content of the propellant.
Type
Thesis
Description
Series/Report No
Department
Department of Physics
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.