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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN Druckformat: 2150-766X
ISSN Online: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v2.i1-6.200
pages 353-359

COMBUSTION OF BORON-BASED SLURRIES IN A RAMBURNER

W. Liehmann
Fraunhofer-Institut für Chemische Technologie D-7507 Pfinztal, Germany

ABSTRAKT

In a combustion chamber equipped with windows, boron and boron alloy slurries were burnt. The fraction of the solids in these mixtures was 25%. For the quantitative analysis of the reaction products, three spectrometer systems were used: an optical multichannel analyzer for the range .2 to .9 μm, and rotating IR-filters covering the range form 2.5 to 14.5 μm.
The determination of the gas-phase temperature of the exhaust plume was obtained by evaluation of the OH rotation bands. The particle temperature was measured with a fast two-color pyrometer.
During the burning process of boron with an average particle size of 2 μm, only a weak background radiation was detected. Mg and AlB2 produced a greater amount of particles in the exhaust due to their particle size of about 50 μm. The spectra of the exhaust plume show typical bands for the particular metals and the combustion products of the JET Al fuel.


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