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International Journal of Energetic Materials and Chemical Propulsion
ESCI SJR: 0.149 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.2018026957
pages 125-135

STUDIES ON BORON/ALUMINUM DODECABORIDE (AlB12)–BASED NOVEL IGNITER COMPOSITION

Sukeshni Rawal
High Energy Materials Research Laboratory, Pune, 411021, India
nil
Manasa Kumar Das
High Energy Materials Research Laboratory, Pune, 411021, India
Anurag Tripathi
High Energy Materials Research Laboratory, Pune, 411021, India
Pawan Kumar Khanna
Defence Institute of Advanced Technology, Pune, 411025, India
Seema Dilip Kakade
High Energy Materials Research Laboratory, Pune, 411021, India

RÉSUMÉ

The igniter is an indispensable part of a rocket propulsion system in which a boron/potassium nitrate–based pyrotechnic composition is commonly employed. In this study, the effect of aluminum dodecaboride (AlB12), has been investigated by sequentially replacing 25%, 50%, 75%, and 100% of boron with AlB12 in the boron/potassium nitrate/plasticized ethyl cellulose igniter composition. The composition having 50% boron replaced with AlB12 exhibited enhanced calorimetric value and flame temperature. The composition also exhibited 21%and 8% reduction in rise time and ignition delay, respectively. Furthermore, the replacement of boron by AlB12 does not reduce the impact, friction, and spark sensitivities, which make it a potential fuel for future igniter compositions.


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