Radiometric Screening of Red Phosphorus Smoke for its Obscuration Characteristics

Authors

  • G. K. Gautam High Energy Materials Research Laboratory, Pune
  • A. D. Joshi High Energy Materials Research Laboratory, Pune
  • S. A. Joshi High Energy Materials Research Laboratory, Pune
  • P. R. Arya High Energy Materials Research Laboratory, Pune
  • M. R. Somayajulu High Energy Materials Research Laboratory, Pune

DOI:

https://doi.org/10.14429/dsj.56.1903

Keywords:

Smoke screen, pyrotechnic compositions, red phosphorus, obscuration characteristics, radiometric screening

Abstract

Red phosphorus and potassium nitrate-based compositions exhibit favorable smoke screen
formation with high obscuration characteristics at low oxidiser content. The rapid vaporisation
of excess red phosphorus at higher flame temperature leads to quick aerodispersion. The
obscuration characteristics are due to formation of P2O5 and subsequent reaction with moisture/
humidity in the atmosphere. Obscuration increases with increasing humidity. Extinction coefficient,
the shadow cast per unit mass of the composition, is higher in visible and comparatively lower
in far infrared.

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Published

2006-07-01

How to Cite

Gautam, G. K., Joshi, A. D., Joshi, S. A., Arya, P. R., & Somayajulu, M. R. (2006). Radiometric Screening of Red Phosphorus Smoke for its Obscuration Characteristics. Defence Science Journal, 56(3), 377–381. https://doi.org/10.14429/dsj.56.1903

Issue

Vol. 56 No. 3: High Energy Materials

Section

Special Issue Papers

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