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国际能源材料和化学驱动期刊
ESCI SJR: 0.149 SNIP: 0.16 CiteScore™: 0.29

ISSN 打印: 2150-766X
ISSN 在线: 2150-7678

国际能源材料和化学驱动期刊

DOI: 10.1615/IntJEnergeticMaterialsChemProp.v4.i1-6.560
pages 594-606

BURN RATE STUDEES OF GAS GENERATOR PROPELLANTS CONTAINING AP/RDX

A. N. Nazare
Explosives Research & Development Laboratory, Pune 411 021 India
S. N. Asthana
High Energy Materials Research Laboratory, Pune 411 021, India
P. G. Shrotri
High Energy Materials Research Laboratory, Pune 411 021, India
Haridwar Singh
High Energy Materials Research Laboratory, Pune 411 021; University of Hyderabad, Hyderabad

ABSTRACT

This paper reports burn rate results of AP/RDX-based compositions with Epoxy / Epoxy-GAP binder Bimodal AP composition with 40% Epoxy binder gave burn rates of 2.1−2.4 mm/s in the pressure range of 1−8.8 MPa and appeared to be suitable for the primary combustor in ramjet applications. Incorporation of 10−30% GAP at the cost of epoxy binder resulted in a 30−250% increase in bum rates, and replacement of coarse AP by fine AP (4 and 10u) led to a 1.5−5 -fold increase in bum rates. Addition of 2 parts of copper chromite / ferric oxide as a catalyst resulted in a moderate increase in burn rates, while incorporation of butyl ferrocene led to a 1.3−3 -fold increase in bum rates. Ballistically modified AP/Epoxy/GAP compositions with bum rates ranging from 5−15 mm/s at 1 MPa to 15−30 mm/s at 8.8 MPa and moderate flame temperatures have potential for gas generator application. The effect of replacement of AP by RDX on bum rates was also studied during this work.


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