Study of Energetic Nitramine Extruded Double-Base Propellants

  • G. K. Gautam High Energy Materials Research Laboratory, Pune
  • S. M. Pundlik High Energy Materials Research Laboratory, Pune
  • A. D. Joshi High Energy Materials Research Laboratory, Pune
  • K. S. Mulage High Energy Materials Research Laboratory, Pune
  • S. N. Singh High Energy Materials Research Laboratory, Pune
Keywords: Temperature sensitivity, Tensile strength, Superior thermal stability, Pressure exponent, Ballistic modifiers, RDX

Abstract

This paper gives the results of an experimental study on nitramine extruded double-base (EDB)fonnulationscontaining up to 25 percent RDXin low and high calorimetric value double-base(DB)propellants. The effect of ballistic modifiers on the burn rate and pressure exponent ( 11) of promisingfonnulations has also been investigated. The data generated on various parameters reveal that ( i)nitraniine EDB propellants exhibit relatively superior thennal stability,' (ii) tensile strength andpercentage elongation are drastically altered if RDX concentration exceeds 15 per cent, (iii) 11 islowered significantly in the presence of ballistic modifiers, (iv) characteristic velocity (C*) values arehigher to that for the control tonnulation, and ( v) temperature sensitivity of burn rate is on the lowerside (0,20 -0.25 % / °C as against 0.40 % / °C) in the presence of ballistic modifiers.

Author Biographies

G. K. Gautam, High Energy Materials Research Laboratory, Pune
Mr GK Gautam obtained his MSc in Organic Chemistry from University of Poona, Pune. He Lbeen working in the field of solid double-base rocket propellant for the past 20 years.
S. M. Pundlik, High Energy Materials Research Laboratory, Pune
Mr SM Pundlik obtained his MSc in Organic chemistry from University of Poona, Pune. He hasbeen working in the field of extruded double-base rocket propellant for the past 25 years.
A. D. Joshi, High Energy Materials Research Laboratory, Pune
Mr AD Joshi obtained his MSc in Inorganic Chemistry from University of Poona. He has beenworking in the field of extruded double-base rocket propellant for the past 25 years.
K. S. Mulage, High Energy Materials Research Laboratory, Pune
Mr KS Mulge obtained his BSc in Chemistry from Shivaji University, Kolhapur. He has been\yorking in the field of double-base rocket propellants for the past 14 years.
S. N. Singh, High Energy Materials Research Laboratory, Pune
Dr SN Singh obtained his PhD in Chemistry from Banaras Hindu University in 1971. He hascontributed significantly in the field of high explosive. pyrotechnics and solid rocket propellants. Heis presently engaged in the development of advanced solid rocket propellants. particularly nitramine EDB propellants.

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Published
2013-01-01
How to Cite
GautamG., PundlikS., JoshiA., MulageK., & SinghS. (2013). Study of Energetic Nitramine Extruded Double-Base Propellants. Defence Science Journal, 48(2), 235-243. https://doi.org/10.14429/dsj.48.3904
Section
Armaments & Explosives