An Experimental Study of the Site and Mode of Action of Platonizers in Double Base Propellants,

Abstract

Certain metal organic salts (e.g., lead or copper salicylate) when used in double base propellants induce desirable insensitivities of burning rate to pressure and initial temperature. To understand this, the combustion wave zones (luminous flame, dark, fizz, and surface reaction zones) were examined by means of photography and fine thermocouples (4 micron bead). The metal salts significantly alter the surface and fizz zones. The surface zone accumulates carbonaceous material coincident with the appearance of an accelerated burning rate in the catalyzed case. No attendant change in surface heat release is detected. Coinciding with this carbonaceous layer occurrence are substantial (50 to 100%) increases in conductive feedback from the fizz zone. This latter effect is believed directly responsible for the altered burning behavior though its origin may lie in the altered surface chemistry. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1974
Accession Number
ADA046036

Entities

People

  • L. H. Caveny
  • M. Summerfield
  • N. Kubota
  • T. J. Ohlemiller

Organizations

  • Princeton University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Burning Rate
  • Chemical Synthesis
  • Chemistry
  • Combustion
  • Double Base Propellants
  • High Pressure
  • Measurement
  • Particle Size
  • Particles
  • Photochemical Reactions
  • Photography
  • Propellants
  • Reaction Time
  • Surface Chemistry
  • Surface Temperature
  • Temperature Gradients

Readers

  • Mathematics or Statistics
  • Rocket Propulsion.
  • Theoretical Analysis.