Heterogeneous fluorine atom recombination/reaction on several materials of construction
1976; American Institute of Aeronautics and Astronautics; Volume: 14; Issue: 5 Linguagem: Inglês
10.2514/3.7132
ISSN1533-385X
AutoresPaul C. Nordine, J. D. LeGrange,
Tópico(s)Laser-induced spectroscopy and plasma
ResumoHeterogeneous F-atom recombination/reaction probabilities on several construction materials were computed from measurements of F-atom flow rates at the entrance and exit of a catalytic duct in a low-pressure reactor. Atom loss probabilities at 300 K and pF^ 13N-m ~ (~1.3 -10~atm) are 6.4 -10~ 5 for A12O3, 1.6-10' for quartz and pyrex glass, 2.8-10 for type-304 stainless steel, 4.2-10 for molybdenum, 7.2-10 for nickel, 1.8-10 ~ for aluminum, and > 10 ~ for copper, brass, and zinc. The values for steel and aluminum vary little with temperature up to 470 and 560 K, respectively. Application of these materials in gas dynamic hydrogen fluoride laser nozzles is discussed briefly.
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