Spectroscopic Study of Metal Vapor Kinetics
Final technical rept. May 1973-Apr 1974
ATLANTIC RESEARCH CORP ALEXANDRIA VA
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The purpose of this project was the formulation and evaluation of pyrotechnic mixtures for release of aluminum and iron vapors. In the program which is the subject of the present report, WO3, Zr, Al, Fe, and Fe2O3 powders were mixed in different proportions, pressed into strands with masses of 15 to 25 gm, and burned mostly at subatmospheric pressure. This type of release is based on the fact that metallic Al or Fe is the most volatile component among the flame products of any given formulation, so the product gas will consist predominantly of Al or Fe vapor the detailed thermodynamics is discussed. The performance of the mixtures was judged by a qualitative observation of the plumes recorded by a movie camera b burning-time, hence average linear burning-rate, measurement and c quantitative absorption spectroscopy of Al and Fe vapors. Details of the two absorption-spectroscopy methods used are presented.
- Atmospheric Physics
- Atomic and Molecular Physics and Spectroscopy
- Combustion and Ignition