Role of Silicon in Boron Potassium Nitrate System.

  • V. S. Bhingarkar High Energy Materials Research Laboratory, Pune
  • P. P. Sane High Energy Materials Research Laboratory, Pune
  • R. G. Sarawadekar High Energy Materials Research Laboratory, Pune
Keywords: Burning rate, Pyrotechnic ignition system

Abstract

To examine the possibility of improving the ignition characteristics of the commonly used pyrotechnic ignition system based on B-KNO/sub -Binder (30:70:10), B was gradually replaced by Si in its composition. The addition of Si was found to reduce the maximum pressure find increase the ignition delay. Maximum dp/dr value was observed with the composition containing 5 per cent Si. The differential thermal analysis results showed single sharp peaks for ignition in the temperature range 500-570 degreeC. The heat of combustion and burning rate decreased with increase in Si content. Impact sensitivity of the compositions increased with increase in the percentage of Si, whereas no change was observed in the friction sensitivity in comparison with the base composition.

Author Biographies

V. S. Bhingarkar, High Energy Materials Research Laboratory, Pune
Mrs V.S. Bhingarkar obtained her MSc (Organic Chemistry) from Poona University, in 1984. She is working as Scientist at the High Energy Materials Research Laboratory (HFMRL), Pune. The areas of his interest include design and development of pyrotechnic composition for ignition systems of solid rocket propellants.
P. P. Sane, High Energy Materials Research Laboratory, Pune
Dr P.P. Sane did his PhD from Poona University, Pune, in 1978. He is working as Scientist E at HEMRL. The areas of his work include formulation, evaluation and qualification of pyrotechnic compositions and design and development of ignition systems for rocket propellants.

R. G. Sarawadekar, High Energy Materials Research Laboratory, Pune
Dr K.G. Sarawadekar obtaineq his PhD from Shivaji University in 1981. He is working as Technical Officer B at HEMRL. The areas of his interest include thermal analysis. reaction kinetics. thermodynamics. solidstate chemistry. and thermo-chemical calcul ations using computers.Presently he is working on theoretical computations of pyrotechnic compositions.

Published
2013-01-01
How to Cite
Bhingarkar, V., Sane, P., & Sarawadekar, R. (2013). Role of Silicon in Boron Potassium Nitrate System. Defence Science Journal, 47(3), 365-371. https://doi.org/10.14429/dsj.47.4018
Section
Armaments & Explosives