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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.142 SNIP: 0.16 CiteScore™: 0.29

ISSN Imprimer: 2150-766X
ISSN En ligne: 2150-7678

International Journal of Energetic Materials and Chemical Propulsion

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v5.i1-6.460
pages 427-437

INVESTIGATION OF FUEL-RICH BORON COMBUSTION IN A PRESSURIZED COMBUSTION BOMB

Roland Pein
DLR - German Aerospace Center, Institute of Space Propulsion D-74239 Hardthausen, Germany, Retired person
Since 1978 Head of Physical Chemistry Laboratories at DLR - German Aerospace Establishment, Institute of Space Propulsion. Retirement on March 1st, 2008
S. Anders
DLR - German Aerospace Center, 74239 Hardthausen, Germany

RÉSUMÉ

Small pellets of two different fuel-rich boron propellants were burnt in a pressurized combustion bomb in order to investigate the combustion in ducted rocket primary combustion chambers. The pressure varied between 1 and 100 bar. The combustion products were chemically analyzed for boron, boron oxide, and boron carbide. The results were plotted versus pressure and compared with computed equilibrium compositions. The main conclusion is that considerable extent of boron conversion into reaction products is already taking place in the primary gas generator of a ducted rocket.


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