A Low Sensitivity Conducting Composition Primer for 20 mm Ammunition,

Abstract

Conducting composition (CC) primers filed with mixes of normal lead styphnate RD1303 with Tintacarb 140 and Merck graphite as conducting component have been subjected to extensive testing for energy and power sensitivity and stability on thermal cycling. All mixes studies were substantially less sensitive than either production M52A3B1 or M52 DEFA primers. Recommendation is made that the RD1303 - Tintacarb 140 (96:4) mix be chosen for continued examination as candidate conducting filling in a low sensitivity CC primer for 20 mm ammunition. A programme to achieve this is outlined. Modified mixes based on the filling in M52A3B1 primers were also examined. The high resistance and sensitivity of the M52A3B1 were found to be necessary to achieve fast functioning times. It is suggested that the significantly slower functioning times for the M52A3B1 primers, relative to M52 DEFA primers, result from slower buildup to deflagration following ignition. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1985
Accession Number
ADA160910

Entities

People

  • L. D. Redman
  • R. J. Spear

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ammunition
  • Chemical Synthesis
  • Chemistry
  • Combustion
  • Composite Materials
  • Explosives
  • Graphitic Materials
  • Ignition
  • Materials
  • Materials Laboratories
  • Materials Science
  • Particle Size
  • Production
  • Resistance
  • Standards
  • Styphnates
  • Test Methods

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Mathematics or Statistics
  • ballistics.