DETERMINATION OF SENSITIVITY TO IMPACT OF PYROTECHNIC FLASH COMPOSITIONS USING MODIFIED PICATINNY ARSENAL IMPACT TEST

Abstract

Run-down impact sensitivity tests were conducted on FP-790 (30/20/50 Ca/Al/KClO4), containing either elemental or CaCO3-coated Ca and 60/40 KClO4/Al. The effects of fuel particle size, aging of the composition after blending, exposure of the composition to 75% RH over various time intervals, and composition temperature were investigated. Flash compositions containing Ca as fuel were more impact sensitive than those containing atomized Al. The systems containing Ca also exhibited the most marked increase in impact sensitivity on heating to 110 C. No trend in impact sensitivity was apparent due to fuel particle size. Aging of the compositions in sealed containers for 1 mo resulted in a very slight increase in impact sensitivity, while exposure to 75% RH caused a marked decrease in impact sensitivity. The substitution of Ca-Al alloy for the individual fuel ingredients in FP 790 resulted in a slight increase in impact sensitivity.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1961
Accession Number
AD0258725

Entities

People

  • David J. Edelman
  • Joell Harris
  • Seymour M. Kaye

Organizations

  • Picatinny Arsenal

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aluminum
  • Aluminum Alloys
  • Calcium
  • Calcium Compounds
  • Calcium Hydroxide
  • Government Procurement
  • Impact Tests
  • Laboratory Procedures
  • Military Research
  • Munitions
  • Navy
  • Ordnance Laboratories
  • Particle Size
  • Photoflash Ammunition
  • Temperature Gradients
  • Thyroid Therapy Drugs

Readers

  • Aerosol Science/Aerosol Physics
  • Mathematics or Statistics
  • ballistics.